HLA-DRB3 (gene)

Major histocompatibility complex, class II, DR beta 3
File:PBB Protein HLA-DRB3 image.jpg PDB rendering based on 1a6a.
Available structures PDB List of PDB id codes 1a6a​, 1d5m​, 1d5x​, 1d5z​, 1d6e​, 1j8h​, 2seb​
Identifiers
Symbols	HLA-DRB3 ; HLA-DR3B; MGC117330
Gene ontology Molecular function Template:GNF GO Cellular component Template:GNF GO Template:GNF GO Template:GNF GO Template:GNF GO Biological process Template:GNF GO Template:GNF GO Template:GNF GO
RNA expression pattern
File:PBB GE HLA-DRB3 209312 x at tn.png
More reference expression data
Orthologs
Template:GNF Ortholog box
Species	Human	Mouse
Entrez	n/a	n/a
Ensembl	n/a	n/a
UniProt	n/a	n/a
RefSeq (mRNA)	n/a	n/a
RefSeq (protein)	n/a	n/a
Location (UCSC)	n/a	n/a
PubMed search	n/a	n/a

Major histocompatibility complex, class II, DR beta 3, also known as HLA-DRB3, is a human gene.

HLA-DRB3 belongs to the HLA class II beta chain paralogues. This class II molecule is a heterodimer consisting of an alpha (DRA) and a beta (DRB) chain, both anchored in the membrane. It plays a central role in the immune system by presenting peptides derived from extracellular proteins. Class II molecules are expressed in antigen presenting cells (APC: B lymphocytes, dendritic cells, macrophages). The beta chain is approximately 26-28 kDa and its gene contains 6 exons. Exon one encodes the leader peptide, exons 2 and 3 encode the two extracellular domains, exon 4 encodes the transmembrane domain and exon 5 encodes the cytoplasmic tail. Within the DR molecule the beta chain contains all the polymorphisms specifying the peptide binding specificities. Typing for these polymorphisms is routinely done for bone marrow and kidney transplantation. DRB1 is expressed at a level five times higher than its paralogues DRB3, DRB4 and DRB5. The presence of DRB3 is linked with allelic variants of DRB1, otherwise it is omitted. There are 4 related pseudogenes: DRB2, DRB6, DRB7, DRB8 and DRB9.

Further reading

• Germain RN (1996). "Binding domain regulation of MHC class II molecule assembly, trafficking, fate, and function". Semin. Immunol. 7 (6): 361–72. doi:10.1006/smim.1995.0041. PMID 8775462.
• Piatier-Tonneau D, Gastinel LN, Amblard F; et al. (1991). "Interaction of CD4 with HLA class II antigens and HIV gp120". Immunogenetics. 34 (2): 121–8. PMID 1869305.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Nong Y, Kandil O, Tobin EH; et al. (1991). "The HIV core protein p24 inhibits interferon-gamma-induced increase of HLA-DR and cytochrome b heavy chain mRNA levels in the human monocyte-like cell line THP1". Cell. Immunol. 132 (1): 10–6. PMID 1905983.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Ress SR, Rousseau J, Ratanjee B; et al. (1991). "HLA class II induction by interferon-gamma in K562 variant cell line: inhibition by serum lipid". Hum. Immunol. 31 (1): 57–66. PMID 1908841.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Rosenstein Y, Burakoff SJ, Herrmann SH (1990). "HIV-gp120 can block CD4-class II MHC-mediated adhesion". J. Immunol. 144 (2): 526–31. PMID 1967269.CS1 maint: Multiple names: authors list (link)
• Callahan KM, Fort MM, Obah EA; et al. (1990). "Genetic variability in HIV-1 gp120 affects interactions with HLA molecules and T cell receptor". J. Immunol. 144 (9): 3341–6. PMID 1970352.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Bowman MR, MacFerrin KD, Schreiber SL, Burakoff SJ (1991). "Identification and structural analysis of residues in the V1 region of CD4 involved in interaction with human immunodeficiency virus envelope glycoprotein gp120 and class II major histocompatibility complex molecules". Proc. Natl. Acad. Sci. U.S.A. 87 (22): 9052–6. PMID 1978941.CS1 maint: Multiple names: authors list (link)
• Gorski J (1989). "HLA-DR beta-chain polymorphism. Second domain polymorphism reflects evolutionary relatedness of alleles and may explain public serologic epitopes". J. Immunol. 143 (1): 329–33. PMID 2471740.
• Kao HT, Gregersen PK, Tang JC; et al. (1989). "Molecular analysis of the HLA class II genes in two DRw6-related haplotypes, DRw13 DQw1 and DRw14 DQw3". J. Immunol. 142 (5): 1743–7. PMID 2493052.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Jonsson AK, Andersson L, Rask L (1989). "A cellular and functional split in the DRw8 haplotype is due to a single amino acid replacement (DR beta ser 57- asp 57)". Immunogenetics. 29 (5): 308–16. PMID 2497068.CS1 maint: Multiple names: authors list (link)
• Clayton LK, Sieh M, Pious DA, Reinherz EL (1989). "Identification of human CD4 residues affecting class II MHC versus HIV-1 gp120 binding". Nature. 339 (6225): 548–51. doi:10.1038/339548a0. PMID 2543930.CS1 maint: Multiple names: authors list (link)
• Diamond DC, Sleckman BP, Gregory T; et al. (1988). "Inhibition of CD4+ T cell function by the HIV envelope protein, gp120". J. Immunol. 141 (11): 3715–7. PMID 2846691.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Angelini G, de Preval C, Gorski J, Mach B (1986). "High-resolution analysis of the human HLA-DR polymorphism by hybridization with sequence-specific oligonucleotide probes". Proc. Natl. Acad. Sci. U.S.A. 83 (12): 4489–93. PMID 3012569.CS1 maint: Multiple names: authors list (link)
• Didier DK, Schiffenbauer J, Shuman S; et al. (1986). "Characterization of two distinct DR beta chain alleles at the beta III locus of the DR5 haplotype: beta III alleles are highly conserved". J. Immunol. 137 (8): 2627–31. PMID 3020126.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Young JA, Wilkinson D, Bodmer WF, Trowsdale J (1987). "Sequence and evolution of HLA-DR7- and -DRw53-associated beta-chain genes". Proc. Natl. Acad. Sci. U.S.A. 84 (14): 4929–33. PMID 3110774.CS1 maint: Multiple names: authors list (link)
• Horn GT, Bugawan TL, Long CM; et al. (1988). "Sequence analysis of HLA class II genes from insulin-dependent diabetic individuals". Hum. Immunol. 21 (4): 249–63. PMID 3372263.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Gorski J, Mach B (1986). "Polymorphism of human Ia antigens: gene conversion between two DR beta loci results in a new HLA-D/DR specificity". Nature. 322 (6074): 67–70. doi:10.1038/322067a0. PMID 3459965.
• Gregersen PK, Moriuchi T, Karr RW; et al. (1987). "Polymorphism of HLA-DR beta chains in DR4, -7, and -9 haplotypes: implications for the mechanisms of allelic variation". Proc. Natl. Acad. Sci. U.S.A. 83 (23): 9149–53. PMID 3466180.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Bell JI, Denney D, Foster L; et al. (1987). "Allelic variation in the DR subregion of the human major histocompatibility complex". Proc. Natl. Acad. Sci. U.S.A. 84 (17): 6234–8. PMID 3476943.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Andrieu JM, Even P, Venet A (1986). "AIDS and related syndromes as a viral-induced autoimmune disease of the immune system: an anti-MHC II disorder. Therapeutic implications". AIDS research. 2 (3): 163–74. PMID 3489470.CS1 maint: Multiple names: authors list (link)