ARPC1B

Revision as of 04:48, 7 November 2018 by imported>Smasongarrison (→‎Function: copy edit with General fixes; url trimming of identifying info perWP:LINKSTOAVOID and Citation Style, typo(s) fixed: Indeed →)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search
VALUE_ERROR (nil)
Identifiers
Aliases
External IDsGeneCards: [1]
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

n/a

n/a

RefSeq (protein)

n/a

n/a

Location (UCSC)n/an/a
PubMed searchn/an/a
Wikidata
View/Edit Human

Actin-related protein 2/3 complex subunit 1B is a protein that in humans is encoded by the ARPC1B gene.[1][2][3]

Function

This gene encodes one of seven subunits of the human Arp2/3 protein complex. This subunit is a member of the SOP2 family of proteins and is most similar to the protein encoded by gene ARPC1A. The similarity between these two proteins suggests that they both may function as p41 subunit of the human Arp2/3 complex that facilitates branching of actin filaments in cells. Isoforms of the p41 subunit may adapt the functions of the complex to different cell types or developmental stages.[3] Indeed, it has recently been shown that variants of the Arp2/3 complex differ in their ability to promote actin assembly, with complexes containing ARPC1B and ARPC5L being better at this than those containing ARPC1A and ARPC5.[4] The differing functions of ARPC1A and ARPC1B are also evident in the recent discovery of patients with severe or total ARPC1B deficiency, who have platelet and immune system abnormalities yet survive, possibly due to a compensatory up-regulation of ARPC1A expression.[5]

Interactions

ARPC1B has been shown to interact with PAK1.[6]

References

  1. Welch MD, DePace AH, Verma S, Iwamatsu A, Mitchison TJ (Jul 1997). "The human Arp2/3 complex is composed of evolutionarily conserved subunits and is localized to cellular regions of dynamic actin filament assembly". The Journal of Cell Biology. 138 (2): 375–84. doi:10.1083/jcb.138.2.375. PMC 2138188. PMID 9230079.
  2. Machesky LM, Reeves E, Wientjes F, Mattheyse FJ, Grogan A, Totty NF, Burlingame AL, Hsuan JJ, Segal AW (Nov 1997). "Mammalian actin-related protein 2/3 complex localizes to regions of lamellipodial protrusion and is composed of evolutionarily conserved proteins". The Biochemical Journal. 328 ( Pt 1) (1): 105–12. PMC 1218893. PMID 9359840.
  3. 3.0 3.1 "Entrez Gene: ARPC1B actin related protein 2/3 complex, subunit 1B, 41kDa".
  4. "Isoform diversity in the Arp2/3 complex determines actin filament dynamics".
  5. "Loss of the Arp2/3 complex component ARPC1B causes platelet abnormalities and predisposes to inflammatory disease".
  6. Vadlamudi RK, Li F, Barnes CJ, Bagheri-Yarmand R, Kumar R (Feb 2004). "p41-Arc subunit of human Arp2/3 complex is a p21-activated kinase-1-interacting substrate". EMBO Reports. 5 (2): 154–60. doi:10.1038/sj.embor.7400079. PMC 1298990. PMID 14749719.

Further reading

External links