HLA-DR53 is an HLA-DR serotype that recognizes gene products of HLA-DRB4 locus. There are 13 alleles at this locus that encode 7 proteins.
DRB3, DRB4, and DRB5 are minor DR beta encoding loci, they have been recognized as having distinct evolution.[1] and the DRB4 locus presence is linked to HLA-DR7 seropositivity. The DRB4*locus was apparently duplicated from an ancestor of the DRB1-DRB4 common locus around 5 million years ago.[2]
DRB4 locus is only apparent in a small subset of DQ haplotypes, and most individuals lack DRB4. In addition the level of normal expression is 8 fold lower than the DRB1 in cells which can express both.[3] and lowered because of both transcriptional and post-transcriptional regulation.[4]
^Gorski J, Rollini P, Mach B (1987). "Structural comparison of the genes of two HLA-DR supertypic groups: the loci encoding DRw52 and DRw53 are not truly allelic". Immunogenetics. 25 (6): 397–402. doi:10.1007/BF00396106. PMID3596674. S2CID25853147.
^Leen MP, Gorski J (1996). "Differential expression of isomorphic HLA-DR beta genes is not a sole function of transcription". Hum. Immunol. 50 (2): 111–20. doi:10.1016/0198-8859(96)00154-1. PMID8891734.
^Kobayashi K, Atoh M, Yagita A, et al. (1990). "Crohn's disease in the Japanese is associated with the HLA-DRw53". Exp. Clin. Immunogenet. 7 (2): 101–8. PMID2322470.
^Morita K, Moriuchi J, Inoko H, Tsuji K, Arimori S (1991). "HLA class II antigens and DNA restriction fragment length polymorphism in myasthenia gravis in Japan". Ann. Neurol. 29 (2): 168–74. doi:10.1002/ana.410290209. PMID1672809. S2CID45699820.
^Morling N, Andersen V, Fugger L, et al. (1991). "Immunogenetics of rheumatoid arthritis and primary Sjögren's syndrome: DNA polymorphism of HLA class II genes". Dis. Markers. 9 (5): 289–96. PMID1686751.
^Terauchi M, Yanagawa T, Ishikawa N, Ito K, Fukazawa T, Maruyama H, Saruta T (2003). "Interactions of HLA-DRB4 and CTLA-4 genes influence thyroid function in Hashimoto's thyroiditis in Japanese population". J Endocrinol Invest. 26 (12): 1208–12. doi:10.1007/bf03349159. PMID15055474. S2CID2344535.
^Zamani M, Spaepen M, Sghar S, Huang C, Westerhof W, Nieuweboer-Krobotova L, Cassiman J (2001). "Linkage and association of HLA class II genes with vitiligo in a Dutch population". Br J Dermatol. 145 (1): 90–4. doi:10.1046/j.1365-2133.2001.04288.x. PMID11453913. S2CID25942367.
^Kobayashi H, Kokubo T, Takahashi M, Sato K, Miyokawa N, Kimura S, Kinouchi R, Katagiri M (1998). "Tyrosinase epitope recognized by an HLA-DR-restricted T-cell line from a Vogt-Koyanagi-Harada disease patient". Immunogenetics. 47 (5): 398–403. doi:10.1007/s002510050375. PMID9510558. S2CID1592923.