TAP1

VALUE_ERROR (nil)
Identifiers
Aliases
External IDs	GeneCards: [1]
Orthologs
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
Wikidata
View/Edit Human

Transporter associated with Antigen Processing 1 is a protein that in humans is encoded by the TAP1 gene.

Function

The membrane-associated protein encoded by this gene is a member of the superfamily of ATP-binding cassette (ABC) transporters. ABC proteins transport various molecules across extra- and intra-cellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, White). This protein is a member of the MDR/TAP subfamily. Members of the MDR/TAP subfamily are involved in multidrug resistance. The protein encoded by this gene is involved in the pumping of degraded cytosolic peptides across the endoplasmic reticulum into the membrane-bound compartment where class I molecules assemble. Mutations in this gene may be associated with ankylosing spondylitis, insulin-dependent diabetes mellitus, and celiac disease.

See also

• ATP-binding cassette transporter

Interactions

TAP1 has been shown to interact with:

• HLA-A, and
• Tapasin.

Further reading

• Townsend A, Trowsdale J (1993). "The transporters associated with antigen presentation". Semin. Cell Biol. 4 (1): 53–61. doi:10.1006/scel.1993.1007. PMID 8453065.
• Schölz C, Tampé R (2006). "The intracellular antigen transport machinery TAP in adaptive immunity and virus escape mechanisms". J. Bioenerg. Biomembr. 37 (6): 509–15. doi:10.1007/s10863-005-9500-1. PMID 16691491.
• Beck S, Kelly A, Radley E, Khurshid F, Alderton RP, Trowsdale J (1992). "DNA sequence analysis of 66 kb of the human MHC class II region encoding a cluster of genes for antigen processing". J. Mol. Biol. 228 (2): 433–41. doi:10.1016/0022-2836(92)90832-5. PMID 1453454.
• Colonna M, Bresnahan M, Bahram S, Strominger JL, Spies T (1992). "Allelic variants of the human putative peptide transporter involved in antigen processing". Proc. Natl. Acad. Sci. U.S.A. 89 (9): 3932–6. doi:10.1073/pnas.89.9.3932. PMC 525605. PMID 1570316.
• Trowsdale J, Hanson I, Mockridge I, Beck S, Townsend A, Kelly A (1991). "Sequences encoded in the class II region of the MHC related to the 'ABC' superfamily of transporters". Nature. 348 (6303): 741–4. doi:10.1038/348741a0. PMID 2259383.
• Spies T, Bresnahan M, Bahram S, Arnold D, Blanck G, Mellins E, Pious D, DeMars R (1991). "A gene in the human major histocompatibility complex class II region controlling the class I antigen presentation pathway". Nature. 348 (6303): 744–7. doi:10.1038/348744a0. PMID 2259384.
• Cerundolo V, Alexander J, Anderson K, Lamb C, Cresswell P, McMichael A, Gotch F, Townsend A (1990). "Presentation of viral antigen controlled by a gene in the major histocompatibility complex". Nature. 345 (6274): 449–52. doi:10.1038/345449a0. PMID 2342577.
• Szafer F, Oksenberg JR, Steinman L (1994). "New allelic polymorphisms in TAP genes". Immunogenetics. 39 (5): 374. doi:10.1007/BF00189240. PMID 8168860.
• Jackson DG, Capra JD (1994). "TAP1 alleles in insulin-dependent diabetes mellitus: a newly defined centromeric boundary of disease susceptibility". Proc. Natl. Acad. Sci. U.S.A. 90 (23): 11079–83. doi:10.1073/pnas.90.23.11079. PMC 47925. PMID 8248212.
• Glynne R, Kerr LA, Mockridge I, Beck S, Kelly A, Trowsdale J (1993). "The major histocompatibility complex-encoded proteasome component LMP7: alternative first exons and post-translational processing". Eur. J. Immunol. 23 (4): 860–6. doi:10.1002/eji.1830230414. PMID 8458375.
• Beck S, Abdulla S, Alderton RP, Glynne RJ, Gut IG, Hosking LK, Jackson A, Kelly A, Newell WR, Sanseau P, Radley E, Thorpe KL, Trowsdale J (1996). "Evolutionary dynamics of non-coding sequences within the class II region of the human MHC". J. Mol. Biol. 255 (1): 1–13. doi:10.1006/jmbi.1996.0001. PMID 8568858.
• Chen HL, Gabrilovich D, Tampé R, Girgis KR, Nadaf S, Carbone DP (1996). "A functionally defective allele of TAP1 results in loss of MHC class I antigen presentation in a human lung cancer". Nat. Genet. 13 (2): 210–3. doi:10.1038/ng0696-210. PMID 8640228.
• Ahn K, Meyer TH, Uebel S, Sempé P, Djaballah H, Yang Y, Peterson PA, Früh K, Tampé R (1996). "Molecular mechanism and species specificity of TAP inhibition by herpes simplex virus ICP47". EMBO J. 15 (13): 3247–55. PMC 451885. PMID 8670825.
• Lewis JW, Neisig A, Neefjes J, Elliott T (1997). "Point mutations in the alpha 2 domain of HLA-A2.1 define a functionally relevant interaction with TAP". Curr. Biol. 6 (7): 873–83. doi:10.1016/S0960-9822(02)00611-5. PMID 8805302.
• Nijenhuis M, Hämmerling GJ (1997). "Multiple regions of the transporter associated with antigen processing (TAP) contribute to its peptide binding site". J. Immunol. 157 (12): 5467–77. PMID 8955196.
• Gobin SJ, Wilson L, Keijsers V, Van den Elsen PJ (1997). "Antigen processing and presentation by human trophoblast-derived cell lines". J. Immunol. 158 (8): 3587–92. PMID 9103419.
• Ahn K, Gruhler A, Galocha B, Jones TR, Wiertz EJ, Ploegh HL, Peterson PA, Yang Y, Früh K (1997). "The ER-luminal domain of the HCMV glycoprotein US6 inhibits peptide translocation by TAP". Immunity. 6 (5): 613–21. doi:10.1016/S1074-7613(00)80349-0. PMID 9175839.

External links

• TAP1+protein,+human at the US National Library of Medicine Medical Subject Headings (MeSH)

This article incorporates text from the United States National Library of Medicine, which is in the public domain.