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{{Infobox_gene}}
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{{Distinguish|text = [[PIN_proteins|PIN1]], an auxin transport protein in plants.}}
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| require_manual_inspection = no
| update_protein_box = yes
| update_summary = yes
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'''Peptidyl-prolyl cis-trans isomerase NIMA-interacting 1''' is an [[enzyme]] that in humans is encoded by the ''PIN1'' [[gene]].<ref name="pmid8606777">{{cite journal | vauthors = Lu KP, Hanes SD, Hunter T | title = A human peptidyl-prolyl isomerase essential for regulation of mitosis | journal = Nature | volume = 380 | issue = 6574 | pages = 544–7 | date = Apr 1996 | pmid = 8606777 | pmc =  | doi = 10.1038/380544a0 }}</ref><ref>{{cite web | title = Entrez Gene: PIN1 Protein (peptidylprolyl cis/trans isomerase) NIMA-interacting 1| url = https://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=5300| accessdate = }}</ref>
{{GNF_Protein_box
| image = PBB_Protein_PIN1_image.jpg
| image_source = [[Protein_Data_Bank|PDB]] rendering based on 1f8a.
| PDB = {{PDB2|1f8a}}, {{PDB2|1i6c}}, {{PDB2|1i8g}}, {{PDB2|1i8h}}, {{PDB2|1nmv}}, {{PDB2|1nmw}}, {{PDB2|1pin}}, {{PDB2|1zcn}}, {{PDB2|2f21}}, {{PDB2|2iti}}, {{PDB2|2itk}}
| Name = Protein (peptidylprolyl cis/trans isomerase) NIMA-interacting 1
| HGNCid = 8988
| Symbol = PIN1
| AltSymbols =; DOD; UBL5
| OMIM = 601052
| ECnumber = 
| Homologene = 4531
| MGIid = 1346036
| GeneAtlas_image1 = PBB_GE_PIN1_202927_at_tn.png
| Function = {{GNF_GO|id=GO:0003755 |text = peptidyl-prolyl cis-trans isomerase activity}} {{GNF_GO|id=GO:0005515 |text = protein binding}} {{GNF_GO|id=GO:0016853 |text = isomerase activity}}
| Component = {{GNF_GO|id=GO:0005634 |text = nucleus}}
| Process = {{GNF_GO|id=GO:0006457 |text = protein folding}} {{GNF_GO|id=GO:0007049 |text = cell cycle}} {{GNF_GO|id=GO:0007088 |text = regulation of mitosis}}
| Orthologs = {{GNF_Ortholog_box
    | Hs_EntrezGene = 5300
    | Hs_Ensembl = ENSG00000127445
    | Hs_RefseqProtein = NP_006212
    | Hs_RefseqmRNA = NM_006221
    | Hs_GenLoc_db =
    | Hs_GenLoc_chr = 19
    | Hs_GenLoc_start = 9806999
    | Hs_GenLoc_end = 9821359
    | Hs_Uniprot = Q13526
    | Mm_EntrezGene = 23988
    | Mm_Ensembl = ENSMUSG00000032171
    | Mm_RefseqmRNA = NM_023371
    | Mm_RefseqProtein = NP_075860
    | Mm_GenLoc_db =   
    | Mm_GenLoc_chr = 9
    | Mm_GenLoc_start = 20402532
    | Mm_GenLoc_end = 20416986
    | Mm_Uniprot = Q3UTI7
  }}
}}
'''Protein (peptidylprolyl cis/trans isomerase) NIMA-interacting 1''', also known as '''PIN1''', is a human [[gene]].<ref>{{cite web | title = Entrez Gene: PIN1 Protein (peptidylprolyl cis/trans isomerase) NIMA-interacting 1| url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=5300| accessdate = }}</ref>


<!-- The PBB_Summary template is automatically maintained by Protein Box Bot.  See Template:PBB_Controls to Stop updates. -->
'''Pin 1''', or peptidyl-prolyl cis/trans [[isomerase]] (PPIase), isomerizes only phospho-Serine/Threonine-Proline [[sequence motif|motifs]].  The enzyme binds to a subset of proteins and thus plays a role as a post phosphorylation control in regulating protein function. Studies have shown that the [[deregulation]] of Pin1 may play a pivotal role in various diseases.  Notably, the [[up-regulation]] of Pin1 is implicated in certain [[cancers]], and the down-regulation of Pin1 is implicated in [[Alzheimer's disease]]. Inhibitors of Pin1 may have therapeutic implications for cancer and [[immune disorder]]s.
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| summary_text =
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==References==
== Discovery ==
{{reflist|2}}


==Further reading==
The gene encoding Pin1 was identified in 1996 as a result of a genetic/biochemical screen for proteins involved in [[mitosis|mitotic]] [[regulation]].  It was found to be essential for [[cell division]] in some organisms. By 1999, however, it was apparent that Pin1 [[knockout mice]] had a surprisingly mild [[phenotype]], indicating that the enzyme was not required for cell division per se. Further studies later found that loss of Pin1 in mice displays are not only neuronal [[degeneracy (biology)|degenerative]] phenotypes but also several abnormalities, similar to those of [[cyclin D1]]-null mice, suggesting the conformation changes mediated by Pin1 may be crucial for cell normal function.
{{refbegin | 2}}
 
{{PBB_Further_reading
== Activation ==
| citations =
 
*{{cite journal  | author=Lu KP, Liou YC, Zhou XZ |title=Pinning down proline-directed phosphorylation signaling. |journal=Trends Cell Biol. |volume=12 |issue= 4 |pages= 164-72 |year= 2002 |pmid= 11978535 |doi=  }}
[[Phosphorylation]] of Ser/Thr-Pro motifs in [[Substrate (biochemistry)|substrates]] is required for recognition by Pin1. Pin is a small protein at 18 [[kiloDalton|kDa]] and does not have a nuclear localization or export signal. However, 2009, Lufei et al. reported that Pin1 has putative novel [[nuclear localization signal]] (NLS) and Pin1 interacts with [[KPNA1|importin α5 (KPNA1)]].<ref>{{cite journal | vauthors = Lufei C, Cao X | year = 2009 | title = Nuclear import of Pin1 is mediated by a novel sequence in the PPIase domain | url = | journal = FEBS Letters | volume = 583 | issue = | pages = 271–276 | doi=10.1016/j.febslet.2008.12.011 | pmid=19084525}}</ref> Substrate interactions and a [[WW domain]] determine subcellular distribution. Expression is induced by growth signals from [[E2F]] transcription factors. Expression levels fluctuate in normal, but not in cancerous cells. Expression is often associated with [[cell proliferation]]. Postranslational modifications such as phosphorylation on Ser16 inhibit the ability of Pin1 to bind substrate, and this inhibitory process may be altered during [[oncogenesis]].  It is hypothesized, but not proven, that Pin1 might also be regulated by proteolytic pathways.
*{{cite journal  | author=Wulf G, Finn G, Suizu F, Lu KP |title=Phosphorylation-specific prolyl isomerization: is there an underlying theme? |journal=Nat. Cell Biol. |volume=7 |issue= 5 |pages= 435-41 |year= 2005 |pmid= 15867923 |doi= 10.1038/ncb0505-435 }}
 
*{{cite journal | author=Etzkorn FA |title=Pin1 flips Alzheimer's switch. |journal=ACS Chem. Biol. |volume=1 |issue= 4 |pages= 214-6 |year= 2007 |pmid= 17163675 |doi= 10.1021/cb600171g }}
== Function ==
*{{cite journal  | author=Balastik M, Lim J, Pastorino L, Lu KP |title=Pin1 in Alzheimer's disease: multiple substrates, one regulatory mechanism? |journal=Biochim. Biophys. Acta |volume=1772 |issue= 4 |pages= 422-9 |year= 2007 |pmid= 17317113 |doi= 10.1016/j.bbadis.2007.01.006 }}
 
*{{cite journal | author=Maleszka R, Hanes SD, Hackett RL, ''et al.'' |title=The Drosophila melanogaster dodo (dod) gene, conserved in humans, is functionally interchangeable with the ESS1 cell division gene of Saccharomyces cerevisiae. |journal=Proc. Natl. Acad. Sci. U.S.A. |volume=93 |issue= 1 |pages= 447-51 |year= 1996 |pmid= 8552658 |doi= }}
Pin1 activity regulates the outcome of proline-directed kinase (e.g. [[MAPK]], [[Cyclin-dependent kinase|CDK]] or [[GSK3]]) [[Cell signalling|signalling]] and consequently regulates cell proliferation (in part through control of cyclin D1 levels and stability) and cell survival. The precise effects of Pin1 depend upon the system: Pin1 accelerates [[dephosphorylation]] of [[Cdc25]] and [[Tau]], but protects phosphorylated cyclin D from [[ubiquitination]] and [[proteolysis]]. Recent data also implicate Pin1 as playing an important role in [[immune response]]s, at least in part by increasing the stability of [[cytokine]] [[mRNA]]s by influencing the protein complexes to which they bind. Pin1 has been hypothesized to act as a molecular timer.<ref name=pmid17876319>{{cite journal | vauthors = Lu KP, Finn G, Lee TH, Nicholson LK | title = Prolyl cis-trans isomerization as a molecular timer | journal = Nature Chemical Biology | volume = 3 | issue = 10 | pages = 619–29 | date = Oct 2007 | pmid = 17876319 | doi = 10.1038/nchembio.2007.35 }}</ref>
*{{cite journal | author=Lu KP, Hanes SD, Hunter T |title=A human peptidyl-prolyl isomerase essential for regulation of mitosis. |journal=Nature |volume=380 |issue= 6574 |pages= 544-7 |year= 1996 |pmid= 8606777 |doi= 10.1038/380544a0 }}
 
*{{cite journal | author=Ranganathan R, Lu KP, Hunter T, Noel JP |title=Structural and functional analysis of the mitotic rotamase Pin1 suggests substrate recognition is phosphorylation dependent. |journal=Cell |volume=89 |issue= 6 |pages= 875-86 |year= 1997 |pmid= 9200606 |doi=  }}
== Interactions ==
*{{cite journal | author=Campbell HD, Webb GC, Fountain S, Young IG |title=The human PIN1 peptidyl-prolyl cis/trans isomerase gene maps to human chromosome 19p13 and the closely related PIN1L gene to 1p31. |journal=Genomics |volume=44 |issue= 2 |pages= 157-62 |year= 1997 |pmid= 9299231 |doi= 10.1006/geno.1997.4854 }}
 
*{{cite journal | author=Crenshaw DG, Yang J, Means AR, Kornbluth S |title=The mitotic peptidyl-prolyl isomerase, Pin1, interacts with Cdc25 and Plx1. |journal=EMBO J. |volume=17 |issue= 5 |pages= 1315-27 |year= 1998 |pmid= 9482729 |doi= 10.1093/emboj/17.5.1315 }}
PIN1 has been shown to [[Protein-protein interaction|interact]] with:
*{{cite journal | author=Shen M, Stukenberg PT, Kirschner MW, Lu KP |title=The essential mitotic peptidyl-prolyl isomerase Pin1 binds and regulates mitosis-specific phosphoproteins. |journal=Genes Dev. |volume=12 |issue= 5 |pages= 706-20 |year= 1998 |pmid= 9499405 |doi= }}
{{div col|colwidth=20em}}
*{{cite journal | author=Lu PJ, Zhou XZ, Shen M, Lu KP |title=Function of WW domains as phosphoserine- or phosphothreonine-binding modules. |journal=Science |volume=283 |issue= 5406 |pages= 1325-8 |year= 1999 |pmid= 10037602 |doi= }}
* [[C-jun]],<ref name = pmid11432833>{{cite journal | vauthors = Wulf GM, Ryo A, Wulf GG, Lee SW, Niu T, Petkova V, Lu KP | title = Pin1 is overexpressed in breast cancer and cooperates with Ras signaling in increasing the transcriptional activity of c-Jun towards cyclin D1 | journal = The EMBO Journal | volume = 20 | issue = 13 | pages = 3459–72 | date = Jul 2001 | pmid = 11432833 | pmc = 125530 | doi = 10.1093/emboj/20.13.3459 }}</ref>
*{{cite journal | author=Lu PJ, Wulf G, Zhou XZ, ''et al.'' |title=The prolyl isomerase Pin1 restores the function of Alzheimer-associated phosphorylated tau protein. |journal=Nature |volume=399 |issue= 6738 |pages= 784-8 |year= 1999 |pmid= 10391244 |doi= 10.1038/21650 }}
* [[CDC25C]],<ref name = pmid9499405/><ref name = pmid11604498>{{cite journal | vauthors = Goldstrohm AC, Albrecht TR, Suñé C, Bedford MT, Garcia-Blanco MA | title = The transcription elongation factor CA150 interacts with RNA polymerase II and the pre-mRNA splicing factor SF1 | journal = Molecular and Cellular Biology | volume = 21 | issue = 22 | pages = 7617–28 | date = Nov 2001 | pmid = 11604498 | pmc = 99933 | doi = 10.1128/MCB.21.22.7617-7628.2001 }}</ref><ref name = pmid10037602>{{cite journal | vauthors = Lu PJ, Zhou XZ, Shen M, Lu KP | title = Function of WW domains as phosphoserine- or phosphothreonine-binding modules | journal = Science | volume = 283 | issue = 5406 | pages = 1325–8 | date = Feb 1999 | pmid = 10037602 | doi =  10.1126/science.283.5406.1325}}</ref>
*{{cite journal | author=Albert A, Lavoie S, Vincent M |title=A hyperphosphorylated form of RNA polymerase II is the major interphase antigen of the phosphoprotein antibody MPM-2 and interacts with the peptidyl-prolyl isomerase Pin1. |journal=J. Cell. Sci. |volume=112 ( Pt 15) |issue=  |pages= 2493-500 |year= 1999 |pmid= 10393805 |doi=  }}
* [[CDC27]],<ref name = pmid9499405/><ref name = pmid10037602/>
*{{cite journal | author=Wells NJ, Watanabe N, Tokusumi T, ''et al.'' |title=The C-terminal domain of the Cdc2 inhibitory kinase Myt1 interacts with Cdc2 complexes and is required for inhibition of G(2)/M progression. |journal=J. Cell. Sci. |volume=112 ( Pt 19) |issue=  |pages= 3361-71 |year= 1999 |pmid= 10504341 |doi= }}
* [[CSNK2A2]],<ref name = pmid11940573>{{cite journal | vauthors = Messenger MM, Saulnier RB, Gilchrist AD, Diamond P, Gorbsky GJ, Litchfield DW | title = Interactions between protein kinase CK2 and Pin1. Evidence for phosphorylation-dependent interactions | journal = The Journal of Biological Chemistry | volume = 277 | issue = 25 | pages = 23054–64 | date = Jun 2002 | pmid = 11940573 | doi = 10.1074/jbc.M200111200 }}</ref>
*{{cite journal | author=Gerez L, Mohrmann K, van Raak M, ''et al.'' |title=Accumulation of rab4GTP in the cytoplasm and association with the peptidyl-prolyl isomerase pin1 during mitosis. |journal=Mol. Biol. Cell |volume=11 |issue= 7 |pages= 2201-11 |year= 2000 |pmid= 10888662 |doi= }}
* [[Casein kinase 2, alpha 1]],<ref name = pmid11940573/>
*{{cite journal | author=Verdecia MA, Bowman ME, Lu KP, ''et al.'' |title=Structural basis for phosphoserine-proline recognition by group IV WW domains. |journal=Nat. Struct. Biol. |volume=7 |issue= 8 |pages= 639-43 |year= 2000 |pmid= 10932246 |doi= 10.1038/77929 }}
* [[DAB2]],<ref name = pmid12881709>{{cite journal | vauthors = He J, Xu J, Xu XX, Hall RA | title = Cell cycle-dependent phosphorylation of Disabled-2 by cdc2 | journal = Oncogene | volume = 22 | issue = 29 | pages = 4524–30 | date = Jul 2003 | pmid = 12881709 | doi = 10.1038/sj.onc.1206767 }}</ref>
*{{cite journal | author=Rippmann JF, Hobbie S, Daiber C, ''et al.'' |title=Phosphorylation-dependent proline isomerization catalyzed by Pin1 is essential for tumor cell survival and entry into mitosis. |journal=Cell Growth Differ. |volume=11 |issue= 7 |pages= 409-16 |year= 2000 |pmid= 10939594 |doi= }}
* [[Endothelial NOS|eNOS]],<ref name = pmid21051667>{{cite journal | vauthors = Ruan L, Torres CM, Qian J, Chen F, Mintz JD, Stepp DW, Fulton D, Venema RC | title = Pin1 prolyl isomerase regulates endothelial nitric oxide synthase | journal = Arteriosclerosis, Thrombosis, and Vascular Biology | volume = 31 | issue = 2 | pages = 392–8 | date = Feb 2011 | pmid = 21051667 | pmc = 3075952 | doi = 10.1161/ATVBAHA.110.213181 }}</ref>
*{{cite journal | author=Liu W, Youn HD, Zhou XZ, ''et al.'' |title=Binding and regulation of the transcription factor NFAT by the peptidyl prolyl cis-trans isomerase Pin1. |journal=FEBS Lett. |volume=496 |issue= 2-3 |pages= 105-8 |year= 2001 |pmid= 11356192 |doi=  }}
* [[FOXO4]],<ref name = pmid18794148>{{cite journal | vauthors = Brenkman AB, de Keizer PL, van den Broek NJ, van der Groep P, van Diest PJ, van der Horst A, Smits AM, Burgering BM | title = The peptidyl-isomerase Pin1 regulates p27kip1 expression through inhibition of Forkhead box O tumor suppressors | journal = Cancer Research | volume = 68 | issue = 18 | pages = 7597–605 | date = Sep 2008 | pmid = 18794148 | doi = 10.1158/0008-5472.CAN-08-1059 }}</ref>
*{{cite journal  | author=Wulf GM, Ryo A, Wulf GG, ''et al.'' |title=Pin1 is overexpressed in breast cancer and cooperates with Ras signaling in increasing the transcriptional activity of c-Jun towards cyclin D1. |journal=EMBO J. |volume=20 |issue= 13 |pages= 3459-72 |year= 2001 |pmid= 11432833 |doi= 10.1093/emboj/20.13.3459 }}
* [[MPHOSPH1]],<ref name = pmid11470801>{{cite journal | vauthors = Kamimoto T, Zama T, Aoki R, Muro Y, Hagiwara M | title = Identification of a novel kinesin-related protein, KRMP1, as a target for mitotic peptidyl-prolyl isomerase Pin1 | journal = The Journal of Biological Chemistry | volume = 276 | issue = 40 | pages = 37520–8 | date = Oct 2001 | pmid = 11470801 | doi = 10.1074/jbc.M106207200 }}</ref>
*{{cite journal | author=Kamimoto T, Zama T, Aoki R, ''et al.'' |title=Identification of a novel kinesin-related protein, KRMP1, as a target for mitotic peptidyl-prolyl isomerase Pin1. |journal=J. Biol. Chem. |volume=276 |issue= 40 |pages= 37520-8 |year= 2001 |pmid= 11470801 |doi= 10.1074/jbc.M106207200 }}
* [[MYT1]],<ref name = pmid10504341>{{cite journal | vauthors = Wells NJ, Watanabe N, Tokusumi T, Jiang W, Verdecia MA, Hunter T | title = The C-terminal domain of the Cdc2 inhibitory kinase Myt1 interacts with Cdc2 complexes and is required for inhibition of G(2)/M progression | journal = Journal of Cell Science | volume = 112 | issue =  19| pages = 3361–71 | date = Oct 1999 | pmid = 10504341 | doi =  }}</ref>
}}
* [[Mothers against decapentaplegic homolog 2]],<ref name = pmid19122240/>
* [[Mothers against decapentaplegic homolog 3]]<ref name = pmid19122240>{{cite journal | vauthors = Nakano A, Koinuma D, Miyazawa K, Uchida T, Saitoh M, Kawabata M, Hanai J, Akiyama H, Abe M, Miyazono K, Matsumoto T, Imamura T | title = Pin1 down-regulates transforming growth factor-beta (TGF-beta) signaling by inducing degradation of Smad proteins | journal = The Journal of Biological Chemistry | volume = 284 | issue = 10 | pages = 6109–15 | date = Mar 2009 | pmid = 19122240 | doi = 10.1074/jbc.M804659200 }}</ref>
* [[P53]],<ref name = pmid12388558>{{cite journal | vauthors = Wulf GM, Liou YC, Ryo A, Lee SW, Lu KP | title = Role of Pin1 in the regulation of p53 stability and p21 transactivation, and cell cycle checkpoints in response to DNA damage | journal = The Journal of Biological Chemistry | volume = 277 | issue = 50 | pages = 47976–9 | date = Dec 2002 | pmid = 12388558 | doi = 10.1074/jbc.C200538200 }}</ref><ref name = pmid12397362>{{cite journal | vauthors = Zacchi P, Gostissa M, Uchida T, Salvagno C, Avolio F, Volinia S, Ronai Z, Blandino G, Schneider C, Del Sal G | title = The prolyl isomerase Pin1 reveals a mechanism to control p53 functions after genotoxic insults | journal = Nature | volume = 419 | issue = 6909 | pages = 853–7 | date = Oct 2002 | pmid = 12397362 | doi = 10.1038/nature01120 }}</ref>
* [[PKMYT1]],<ref name = pmid9499405/>
* [[PLK1]],<ref name = pmid9499405/><ref name = pmid10037602/>
* [[SUPT5H]],<ref name = pmid11575923>{{cite journal | vauthors = Lavoie SB, Albert AL, Handa H, Vincent M, Bensaude O | title = The peptidyl-prolyl isomerase Pin1 interacts with hSpt5 phosphorylated by Cdk9 | journal = Journal of Molecular Biology | volume = 312 | issue = 4 | pages = 675–85 | date = Sep 2001 | pmid = 11575923 | doi = 10.1006/jmbi.2001.4991 }}</ref>  and
* [[Wee1-like protein kinase]].<ref name = pmid9499405>{{cite journal | vauthors = Shen M, Stukenberg PT, Kirschner MW, Lu KP | title = The essential mitotic peptidyl-prolyl isomerase Pin1 binds and regulates mitosis-specific phosphoproteins | journal = Genes & Development | volume = 12 | issue = 5 | pages = 706–20 | date = Mar 1998 | pmid = 9499405 | pmc = 316589 | doi =  10.1101/gad.12.5.706}}</ref>
{{Div col end}}
 
== References ==
{{reflist|33em}}
 
== Further reading ==
{{refbegin|33em}}
* {{cite journal | vauthors = Lu KP, Liou YC, Zhou XZ | title = Pinning down proline-directed phosphorylation signaling | journal = Trends in Cell Biology | volume = 12 | issue = 4 | pages = 164–72 | date = Apr 2002 | pmid = 11978535 | doi = 10.1016/S0962-8924(02)02253-5 }}
* {{cite journal | vauthors = Wulf G, Finn G, Suizu F, Lu KP | title = Phosphorylation-specific prolyl isomerization: is there an underlying theme? | journal = Nature Cell Biology | volume = 7 | issue = 5 | pages = 435–41 | date = May 2005 | pmid = 15867923 | doi = 10.1038/ncb0505-435 }}
* {{cite journal | vauthors = Etzkorn FA | title = Pin1 flips Alzheimer's switch | journal = ACS Chemical Biology | volume = 1 | issue = 4 | pages = 214–6 | date = May 2006 | pmid = 17163675 | doi = 10.1021/cb600171g }}
* {{cite journal | vauthors = Balastik M, Lim J, Pastorino L, Lu KP | title = Pin1 in Alzheimer's disease: multiple substrates, one regulatory mechanism? | journal = Biochimica et Biophysica Acta | volume = 1772 | issue = 4 | pages = 422–9 | date = Apr 2007 | pmid = 17317113 | pmc = 1868500 | doi = 10.1016/j.bbadis.2007.01.006 }}
* {{cite journal | vauthors = Maleszka R, Hanes SD, Hackett RL, de Couet HG, Miklos GL | title = The Drosophila melanogaster dodo (dod) gene, conserved in humans, is functionally interchangeable with the ESS1 cell division gene of Saccharomyces cerevisiae | journal = Proceedings of the National Academy of Sciences of the United States of America | volume = 93 | issue = 1 | pages = 447–51 | date = Jan 1996 | pmid = 8552658 | pmc = 40255 | doi = 10.1073/pnas.93.1.447 }}
* {{cite journal | vauthors = Ranganathan R, Lu KP, Hunter T, Noel JP | title = Structural and functional analysis of the mitotic rotamase Pin1 suggests substrate recognition is phosphorylation dependent | journal = Cell | volume = 89 | issue = 6 | pages = 875–86 | date = Jun 1997 | pmid = 9200606 | doi = 10.1016/S0092-8674(00)80273-1 }}
* {{cite journal | vauthors = Campbell HD, Webb GC, Fountain S, Young IG | title = The human PIN1 peptidyl-prolyl cis/trans isomerase gene maps to human chromosome 19p13 and the closely related PIN1L gene to 1p31 | journal = Genomics | volume = 44 | issue = 2 | pages = 157–62 | date = Sep 1997 | pmid = 9299231 | doi = 10.1006/geno.1997.4854 }}
* {{cite journal | vauthors = Crenshaw DG, Yang J, Means AR, Kornbluth S | title = The mitotic peptidyl-prolyl isomerase, Pin1, interacts with Cdc25 and Plx1 | journal = The EMBO Journal | volume = 17 | issue = 5 | pages = 1315–27 | date = Aug 1998 | pmid = 9482729 | pmc = 1170480 | doi = 10.1093/emboj/17.5.1315 }}
* {{cite journal | vauthors = Shen M, Stukenberg PT, Kirschner MW, Lu KP | title = The essential mitotic peptidyl-prolyl isomerase Pin1 binds and regulates mitosis-specific phosphoproteins | journal = Genes & Development | volume = 12 | issue = 5 | pages = 706–20 | date = Mar 1998 | pmid = 9499405 | pmc = 316589 | doi = 10.1101/gad.12.5.706 }}
* {{cite journal | vauthors = Lu PJ, Zhou XZ, Shen M, Lu KP | title = Function of WW domains as phosphoserine- or phosphothreonine-binding modules | journal = Science | volume = 283 | issue = 5406 | pages = 1325–8 | date = Feb 1999 | pmid = 10037602 | doi = 10.1126/science.283.5406.1325 }}
* {{cite journal | vauthors = Lu PJ, Wulf G, Zhou XZ, Davies P, Lu KP | title = The prolyl isomerase Pin1 restores the function of Alzheimer-associated phosphorylated tau protein | journal = Nature | volume = 399 | issue = 6738 | pages = 784–8 | date = Jun 1999 | pmid = 10391244 | doi = 10.1038/21650 }}
* {{cite journal | vauthors = Albert A, Lavoie S, Vincent M | title = A hyperphosphorylated form of RNA polymerase II is the major interphase antigen of the phosphoprotein antibody MPM-2 and interacts with the peptidyl-prolyl isomerase Pin1 | journal = Journal of Cell Science | volume = 112 | issue =  15| pages = 2493–500 | date = Aug 1999 | pmid = 10393805 | doi =  | series = 112 }}
* {{cite journal | vauthors = Wells NJ, Watanabe N, Tokusumi T, Jiang W, Verdecia MA, Hunter T | title = The C-terminal domain of the Cdc2 inhibitory kinase Myt1 interacts with Cdc2 complexes and is required for inhibition of G(2)/M progression | journal = Journal of Cell Science | volume = 112 | issue =  19| pages = 3361–71 | date = Oct 1999 | pmid = 10504341 | doi =  | series = 112 }}
* {{cite journal | vauthors = Gerez L, Mohrmann K, van Raak M, Jongeneelen M, Zhou XZ, Lu KP, van Der Sluijs P | title = Accumulation of rab4GTP in the cytoplasm and association with the peptidyl-prolyl isomerase pin1 during mitosis | journal = Molecular Biology of the Cell | volume = 11 | issue = 7 | pages = 2201–11 | date = Jul 2000 | pmid = 10888662 | pmc = 14913 | doi = 10.1091/mbc.11.7.2201 }}
* {{cite journal | vauthors = Verdecia MA, Bowman ME, Lu KP, Hunter T, Noel JP | title = Structural basis for phosphoserine-proline recognition by group IV WW domains | journal = Nature Structural Biology | volume = 7 | issue = 8 | pages = 639–43 | date = Aug 2000 | pmid = 10932246 | doi = 10.1038/77929 }}
* {{cite journal | vauthors = Rippmann JF, Hobbie S, Daiber C, Guilliard B, Bauer M, Birk J, Nar H, Garin-Chesa P, Rettig WJ, Schnapp A | title = Phosphorylation-dependent proline isomerization catalyzed by Pin1 is essential for tumor cell survival and entry into mitosis | journal = Cell Growth & Differentiation | volume = 11 | issue = 7 | pages = 409–16 | date = Jul 2000 | pmid = 10939594 | doi =  }}
* {{cite journal | vauthors = Liu W, Youn HD, Zhou XZ, Lu KP, Liu JO | title = Binding and regulation of the transcription factor NFAT by the peptidyl prolyl cis-trans isomerase Pin1 | journal = FEBS Letters | volume = 496 | issue = 2–3 | pages = 105–8 | date = May 2001 | pmid = 11356192 | doi = 10.1016/S0014-5793(01)02411-5 }}
* {{cite journal | vauthors = Wulf GM, Ryo A, Wulf GG, Lee SW, Niu T, Petkova V, Lu KP | title = Pin1 is overexpressed in breast cancer and cooperates with Ras signaling in increasing the transcriptional activity of c-Jun towards cyclin D1 | journal = The EMBO Journal | volume = 20 | issue = 13 | pages = 3459–72 | date = Jul 2001 | pmid = 11432833 | pmc = 125530 | doi = 10.1093/emboj/20.13.3459 }}
* {{cite journal | vauthors = Kamimoto T, Zama T, Aoki R, Muro Y, Hagiwara M | title = Identification of a novel kinesin-related protein, KRMP1, as a target for mitotic peptidyl-prolyl isomerase Pin1 | journal = The Journal of Biological Chemistry | volume = 276 | issue = 40 | pages = 37520–8 | date = Oct 2001 | pmid = 11470801 | doi = 10.1074/jbc.M106207200 }}
{{refend}}
{{refend}}


{{protein-stub}}
{{PDB Gallery|geneid=5300}}
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[[Category:Enzymes]]
[[Category:Isomerases]]

Latest revision as of 12:21, 24 August 2018

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Identifiers
Aliases
External IDsGeneCards: [1]
Orthologs
SpeciesHumanMouse
Entrez

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Ensembl

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UniProt

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RefSeq (mRNA)

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RefSeq (protein)

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Not to be confused with PIN1, an auxin transport protein in plants..

Peptidyl-prolyl cis-trans isomerase NIMA-interacting 1 is an enzyme that in humans is encoded by the PIN1 gene.[1][2]

Pin 1, or peptidyl-prolyl cis/trans isomerase (PPIase), isomerizes only phospho-Serine/Threonine-Proline motifs. The enzyme binds to a subset of proteins and thus plays a role as a post phosphorylation control in regulating protein function. Studies have shown that the deregulation of Pin1 may play a pivotal role in various diseases. Notably, the up-regulation of Pin1 is implicated in certain cancers, and the down-regulation of Pin1 is implicated in Alzheimer's disease. Inhibitors of Pin1 may have therapeutic implications for cancer and immune disorders.

Discovery

The gene encoding Pin1 was identified in 1996 as a result of a genetic/biochemical screen for proteins involved in mitotic regulation. It was found to be essential for cell division in some organisms. By 1999, however, it was apparent that Pin1 knockout mice had a surprisingly mild phenotype, indicating that the enzyme was not required for cell division per se. Further studies later found that loss of Pin1 in mice displays are not only neuronal degenerative phenotypes but also several abnormalities, similar to those of cyclin D1-null mice, suggesting the conformation changes mediated by Pin1 may be crucial for cell normal function.

Activation

Phosphorylation of Ser/Thr-Pro motifs in substrates is required for recognition by Pin1. Pin is a small protein at 18 kDa and does not have a nuclear localization or export signal. However, 2009, Lufei et al. reported that Pin1 has putative novel nuclear localization signal (NLS) and Pin1 interacts with importin α5 (KPNA1).[3] Substrate interactions and a WW domain determine subcellular distribution. Expression is induced by growth signals from E2F transcription factors. Expression levels fluctuate in normal, but not in cancerous cells. Expression is often associated with cell proliferation. Postranslational modifications such as phosphorylation on Ser16 inhibit the ability of Pin1 to bind substrate, and this inhibitory process may be altered during oncogenesis. It is hypothesized, but not proven, that Pin1 might also be regulated by proteolytic pathways.

Function

Pin1 activity regulates the outcome of proline-directed kinase (e.g. MAPK, CDK or GSK3) signalling and consequently regulates cell proliferation (in part through control of cyclin D1 levels and stability) and cell survival. The precise effects of Pin1 depend upon the system: Pin1 accelerates dephosphorylation of Cdc25 and Tau, but protects phosphorylated cyclin D from ubiquitination and proteolysis. Recent data also implicate Pin1 as playing an important role in immune responses, at least in part by increasing the stability of cytokine mRNAs by influencing the protein complexes to which they bind. Pin1 has been hypothesized to act as a molecular timer.[4]

Interactions

PIN1 has been shown to interact with:

References

  1. ↑ Lu KP, Hanes SD, Hunter T (Apr 1996). "A human peptidyl-prolyl isomerase essential for regulation of mitosis". Nature. 380 (6574): 544–7. doi:10.1038/380544a0. PMID 8606777.
  2. ↑ "Entrez Gene: PIN1 Protein (peptidylprolyl cis/trans isomerase) NIMA-interacting 1".
  3. ↑ Lufei C, Cao X (2009). "Nuclear import of Pin1 is mediated by a novel sequence in the PPIase domain". FEBS Letters. 583: 271–276. doi:10.1016/j.febslet.2008.12.011. PMID 19084525.
  4. ↑ Lu KP, Finn G, Lee TH, Nicholson LK (Oct 2007). "Prolyl cis-trans isomerization as a molecular timer". Nature Chemical Biology. 3 (10): 619–29. doi:10.1038/nchembio.2007.35. PMID 17876319.
  5. ↑ Wulf GM, Ryo A, Wulf GG, Lee SW, Niu T, Petkova V, Lu KP (Jul 2001). "Pin1 is overexpressed in breast cancer and cooperates with Ras signaling in increasing the transcriptional activity of c-Jun towards cyclin D1". The EMBO Journal. 20 (13): 3459–72. doi:10.1093/emboj/20.13.3459. PMC 125530. PMID 11432833.
  6. ↑ 6.0 6.1 6.2 6.3 6.4 Shen M, Stukenberg PT, Kirschner MW, Lu KP (Mar 1998). "The essential mitotic peptidyl-prolyl isomerase Pin1 binds and regulates mitosis-specific phosphoproteins". Genes & Development. 12 (5): 706–20. doi:10.1101/gad.12.5.706. PMC 316589. PMID 9499405.
  7. ↑ Goldstrohm AC, Albrecht TR, Suñé C, Bedford MT, Garcia-Blanco MA (Nov 2001). "The transcription elongation factor CA150 interacts with RNA polymerase II and the pre-mRNA splicing factor SF1". Molecular and Cellular Biology. 21 (22): 7617–28. doi:10.1128/MCB.21.22.7617-7628.2001. PMC 99933. PMID 11604498.
  8. ↑ 8.0 8.1 8.2 Lu PJ, Zhou XZ, Shen M, Lu KP (Feb 1999). "Function of WW domains as phosphoserine- or phosphothreonine-binding modules". Science. 283 (5406): 1325–8. doi:10.1126/science.283.5406.1325. PMID 10037602.
  9. ↑ 9.0 9.1 Messenger MM, Saulnier RB, Gilchrist AD, Diamond P, Gorbsky GJ, Litchfield DW (Jun 2002). "Interactions between protein kinase CK2 and Pin1. Evidence for phosphorylation-dependent interactions". The Journal of Biological Chemistry. 277 (25): 23054–64. doi:10.1074/jbc.M200111200. PMID 11940573.
  10. ↑ He J, Xu J, Xu XX, Hall RA (Jul 2003). "Cell cycle-dependent phosphorylation of Disabled-2 by cdc2". Oncogene. 22 (29): 4524–30. doi:10.1038/sj.onc.1206767. PMID 12881709.
  11. ↑ Ruan L, Torres CM, Qian J, Chen F, Mintz JD, Stepp DW, Fulton D, Venema RC (Feb 2011). "Pin1 prolyl isomerase regulates endothelial nitric oxide synthase". Arteriosclerosis, Thrombosis, and Vascular Biology. 31 (2): 392–8. doi:10.1161/ATVBAHA.110.213181. PMC 3075952. PMID 21051667.
  12. ↑ Brenkman AB, de Keizer PL, van den Broek NJ, van der Groep P, van Diest PJ, van der Horst A, Smits AM, Burgering BM (Sep 2008). "The peptidyl-isomerase Pin1 regulates p27kip1 expression through inhibition of Forkhead box O tumor suppressors". Cancer Research. 68 (18): 7597–605. doi:10.1158/0008-5472.CAN-08-1059. PMID 18794148.
  13. ↑ Kamimoto T, Zama T, Aoki R, Muro Y, Hagiwara M (Oct 2001). "Identification of a novel kinesin-related protein, KRMP1, as a target for mitotic peptidyl-prolyl isomerase Pin1". The Journal of Biological Chemistry. 276 (40): 37520–8. doi:10.1074/jbc.M106207200. PMID 11470801.
  14. ↑ Wells NJ, Watanabe N, Tokusumi T, Jiang W, Verdecia MA, Hunter T (Oct 1999). "The C-terminal domain of the Cdc2 inhibitory kinase Myt1 interacts with Cdc2 complexes and is required for inhibition of G(2)/M progression". Journal of Cell Science. 112 (19): 3361–71. PMID 10504341.
  15. ↑ 15.0 15.1 Nakano A, Koinuma D, Miyazawa K, Uchida T, Saitoh M, Kawabata M, Hanai J, Akiyama H, Abe M, Miyazono K, Matsumoto T, Imamura T (Mar 2009). "Pin1 down-regulates transforming growth factor-beta (TGF-beta) signaling by inducing degradation of Smad proteins". The Journal of Biological Chemistry. 284 (10): 6109–15. doi:10.1074/jbc.M804659200. PMID 19122240.
  16. ↑ Wulf GM, Liou YC, Ryo A, Lee SW, Lu KP (Dec 2002). "Role of Pin1 in the regulation of p53 stability and p21 transactivation, and cell cycle checkpoints in response to DNA damage". The Journal of Biological Chemistry. 277 (50): 47976–9. doi:10.1074/jbc.C200538200. PMID 12388558.
  17. ↑ Zacchi P, Gostissa M, Uchida T, Salvagno C, Avolio F, Volinia S, Ronai Z, Blandino G, Schneider C, Del Sal G (Oct 2002). "The prolyl isomerase Pin1 reveals a mechanism to control p53 functions after genotoxic insults". Nature. 419 (6909): 853–7. doi:10.1038/nature01120. PMID 12397362.
  18. ↑ Lavoie SB, Albert AL, Handa H, Vincent M, Bensaude O (Sep 2001). "The peptidyl-prolyl isomerase Pin1 interacts with hSpt5 phosphorylated by Cdk9". Journal of Molecular Biology. 312 (4): 675–85. doi:10.1006/jmbi.2001.4991. PMID 11575923.

Further reading

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