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Overview

Uniprot IDO15533
Protein NameTapasin
Gene NameTAPBP
OrganismHomo sapiens

Kla Sites from experimental identification

Position Flanking peptide
342 GPGGRSQKAEGQRWL

Function

Involved in the association of MHC class I with transporter associated with antigen processing (TAP) and in the assembly of MHC class I with peptide (peptide loading)

Protein Sequence

10 MKSLSLLLAV 20 ALGLATAVSA 30 GPAVIECWFV 40 EDASGKGLAK 50 RPGALLLRQG 60 PGEPPPRPDL 70 DPELYLSVHD 80 PAGALQAAFR 90 RYPRGAPAPH 100 CEMSRFVPLP 110 ASAKWASGLT 120 PAQNCPRALD 130 GAWLMVSISS 140 PVLSLSSLLR 150 PQPEPQQEPV 160 LITMATVVLT 170 VLTHTPAPRV 180 RLGQDALLDL 190 SFAYMPPTSE 200 AASSLAPGPP 210 PFGLEWRRQH 220 LGKGHLLLAA 230 TPGLNGQMPA 240 AQEGAVAFAA 250 WDDDEPWGPW 260 TGNGTFWLPT 270 VQPFQEGTYL 280 ATIHLPYLQG 290 QVTLELAVYK 300 PPKVSLMPAT 310 LARAAPGEAP 320 PELLCLVSHF 330 YPSGGLEVEW 340 ELRGGPGGRS 350 QKAEGQRWLS 360 ALRHHSDGSV 370 SLSGHLQPPP 380 VTTEQHGARY 390 ACRIHHPSLP 400 ASGRSAEVTL 410 EVAGLSGPSL 420 EDSVGLFLSA 430 FLLLGLFKAL 440 GWAAVYLSTC KDSKKKAE

Gene Ontology

Classification GO ID Description
Cellular Component GO:0005783 endoplasmic reticulum
Cellular Component GO:0005789 endoplasmic reticulum membrane
Cellular Component GO:0033116 endoplasmic reticulum-Golgi intermediate compartment membrane
Cellular Component GO:0000139 Golgi membrane
Cellular Component GO:0098553 lumenal side of endoplasmic reticulum membrane
Cellular Component GO:0042824 MHC class I peptide loading complex
Cellular Component GO:0030670 phagocytic vesicle membrane
Molecular Function GO:0042288 MHC class I protein binding
Molecular Function GO:0023024 MHC class I protein complex binding
Molecular Function GO:0060090 molecular adaptor activity
Molecular Function GO:0042605 peptide antigen binding
Molecular Function GO:0044183 protein folding chaperone
Molecular Function GO:0062061 TAP complex binding
Molecular Function GO:0046978 TAP1 binding
Molecular Function GO:0046979 TAP2 binding
Molecular Function GO:0051082 unfolded protein binding
Biological Process GO:0019885 antigen processing and presentation of endogenous peptide antigen via MHC class I
Biological Process GO:0002398 MHC class Ib protein complex assembly
Biological Process GO:0002502 peptide antigen assembly with MHC class I protein complex
Biological Process GO:0050823 peptide antigen stabilization
Biological Process GO:0065003 protein-containing complex assembly
Biological Process GO:0010468 regulation of gene expression
Biological Process GO:0061635 regulation of protein complex stability
Biological Process GO:0006890 retrograde vesicle-mediated transport, Golgi to endoplasmic reticulum

Reference

[1] Hong H, Chen X, Wang H, Gu X, Yuan Y et al.. Global profiling of protein lysine lactylation and potential target modified protein analysis in hepatocellular carcinoma.. Proteomics 23(9):e2200432. 2023 May. PMID: 36625413.