Identification |
HMDB Protein ID
| CDBP04769 |
Secondary Accession Numbers
| Not Available |
Name
| Antigen peptide transporter 1 |
Description
| Not Available |
Synonyms
|
- APT1
- ATP-binding cassette sub-family B member 2
- PSF-1
- Peptide supply factor 1
- Peptide transporter PSF1
- Peptide transporter TAP1
- Peptide transporter involved in antigen processing 1
- Really interesting new gene 4 protein
|
Gene Name
| TAP1 |
Protein Type
| Transporter |
Biological Properties |
General Function
| Involved in ATP binding |
Specific Function
| Involved in the transport of antigens from the cytoplasm to the endoplasmic reticulum for association with MHC class I molecules. Also acts as a molecular scaffold for the final stage of MHC class I folding, namely the binding of peptide. Nascent MHC class I molecules associate with TAP via tapasin. Inhibited by the covalent attachment of herpes simplex virus ICP47 protein, which blocks the peptide-binding site of TAP. Inhibited by human cytomegalovirus US6 glycoprotein, which binds to the lumenal side of the TAP complex and inhibits peptide translocation by specifically blocking ATP-binding to TAP1 and prevents the conformational rearrangement of TAP induced by peptide binding. Inhibited by human adenovirus E3-19K glycoprotein, which binds the TAP complex and acts as a tapasin inhibitor, preventing MHC class I/TAP association. Expression of TAP1 is down-regulated by human Epstein-Barr virus vIL-10 protein, thereby affecting the transport of peptides into the endoplasmic reticulum and subsequent peptide loading by MHC class I molecules |
GO Classification
|
Component |
membrane |
cell part |
membrane part |
intrinsic to membrane |
integral to membrane |
Function |
adenyl nucleotide binding |
adenyl ribonucleotide binding |
atp binding |
peptide transporter activity |
transmembrane transporter activity |
atpase activity |
active transmembrane transporter activity |
transporter activity |
primary active transmembrane transporter activity |
substrate-specific transporter activity |
p-p-bond-hydrolysis-driven transmembrane transporter activity |
nucleoside-triphosphatase activity |
hydrolase activity, acting on acid anhydrides |
atpase activity, coupled to transmembrane movement of substances |
hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides |
binding |
pyrophosphatase activity |
nucleotide binding |
catalytic activity |
hydrolase activity |
nucleoside binding |
purine nucleoside binding |
Process |
peptide transport |
establishment of localization |
transport |
transmembrane transport |
|
Cellular Location
|
- Endoplasmic reticulum membrane
- Multi-pass membrane protein
|
Pathways
|
Not Available
|
Gene Properties |
Chromosome Location
| Chromosome:6 |
Locus
| 6p21.3 |
SNPs
| TAP1 |
Gene Sequence
|
>2427 bp
ATGGCTGAGCTTCTCGCCAGCGCAGGATCAGCCTGTTCCTGGGACTTTCCGAGAGCCCCG
CCCTCGTTCCCTCCCCCAGCCGCCAGTAGGGGAGGACTCGGCGGTACCCGGAGCTTCAGG
CCCCACCGGGGCGCGGAGAGTCCCAGACCCGGCCGGGACCGGGACGGCGTCCGAGTGCCA
ATGGCTAGCTCTAGGTGTCCCGCTCCCCGCGGGTGCCGCTGCCTCCCCGGAGCTTCTCTC
GCATGGCTGGGGACAGTACTGCTACTTCTCGCCGACTGGGTGCTGCTCCGGACCGCGCTG
CCCCGCATATTCTCCCTGCTGGTGCCCACCGCGCTGCCACTGCTCCGGGTCTGGGCGGTG
GGCCTGAGCCGCTGGGCCGTGCTCTGGCTGGGGGCCTGCGGGGTCCTCAGGGCAACGGTT
GGCTCCAAGAGCGAAAACGCAGGTGCCCAGGGCTGGCTGGCTGCTTTGAAGCCATTAGCT
GCGGCACTGGGCTTGGCCCTGCCGGGACTTGCCTTGTTCCGAGAGCTGATCTCATGGGGA
GCCCCCGGGTCCGCGGATAGCACCAGGCTACTGCACTGGGGAAGTCACCCTACCGCCTTC
GTTGTCAGTTATGCAGCGGCACTGCCCGCAGCAGCCCTGTGGCACAAACTCGGGAGCCTC
TGGGTGCCCGGCGGTCAGGGCGGCTCTGGAAACCCTGTGCGTCGGCTTCTAGGCTGCCTG
GGCTCGGAGACGCGCCGCCTCTCGCTGTTCCTGGTCCTGGTGGTCCTCTCCTCTCTTGGG
GAGATGGCCATTCCATTCTTTACGGGCCGCCTCACTGACTGGATTCTACAAGATGGCTCA
GCCGATACCTTCACTCGAAACTTAACTCTCATGTCCATTCTCACCATAGCCAGTGCAGTG
CTGGAGTTCGTGGGTGACGGGATCTATAACAACACCATGGGCCACGTGCACAGCCACTTG
CAGGGAGAGGTGTTTGGGGCTGTCCTGCGCCAGGAGACGGAGTTTTTCCAACAGAACCAG
ACAGGTAACATCATGTCTCGGGTAACAGAGGACACGTCCACCCTGAGTGATTCTCTGAGT
GAGAATCTGAGCTTATTTCTGTGGTACCTGGTGCGAGGCCTATGTCTCTTGGGGATCATG
CTCTGGGGATCAGTGTCCCTCACCATGGTCACCCTGATCACCCTGCCTCTGCTTTTCCTT
CTGCCCAAGAAGGTGGGAAAATGGTACCAGTTGCTGGAAGTGCAGGTGCGGGAATCTCTG
GCAAAGTCCAGCCAGGTGGCCATTGAGGCTCTGTCGGCCATGCCTACAGTTCGAAGCTTT
GCCAACGAGGAGGGCGAAGCCCAGAAGTTTAGGGAAAAGCTGCAAGAAATAAAGACACTC
AACCAGAAGGAGGCTGTGGCCTATGCAGTCAACTCCTGGACCACTAGTATTTCAGGTATG
CTGCTGAAAGTGGGAATCCTCTACATTGGTGGGCAGCTGGTGACCAGTGGGGCTGTAAGC
AGTGGGAACCTTGTCACATTTGTTCTCTACCAGATGCAGTTCACCCAGGCTGTGGAGGTA
CTGCTCTCCATCTACCCCAGAGTACAGAAGGCTGTGGGCTCCTCAGAGAAAATATTTGAG
TACCTGGACCGCACCCCTCGCTGCCCACCCAGTGGTCTGTTGACTCCCTTACACTTGGAG
GGCCTTGTCCAGTTCCAAGATGTCTCCTTTGCCTACCCAAACCGCCCAGATGTCTTAGTG
CTACAGGGGCTGACATTCACCCTACGCCCTGGCGAGGTGACGGCGCTGGTGGGACCCAAT
GGGTCTGGGAAGAGCACAGTGGCTGCCCTGCTGCAGAATCTGTACCAGCCCACCGGGGGA
CAGCTGCTGTTGGATGGGAAGCCCCTTCCCCAATATGAGCACCGCTACCTGCACAGGCAG
GTGGCTGCAGTGGGACAAGAGCCACAGGTATTTGGAAGAAGTCTTCAAGAAAATATTGCC
TATGGCCTGACCCAGAAGCCAACTATGGAGGAAATCACAGCTGCTGCAGTAAAGTCTGGG
GCCCATAGTTTCATCTCTGGACTCCCTCAGGGCTATGACACAGAGGTAGACGAGGCTGGG
AGCCAGCTGTCAGGGGGTCAGCGACAGGCAGTGGCGTTGGCCCGAGCATTGATCCGGAAA
CCGTGTGTACTTATCCTGGATGATGCCACCAGTGCCCTGGATGCAAACAGCCAGTTACAG
GTGGAGCAGCTCCTGTACGAAAGCCCTGAGCGGTACTCCCGCTCAGTGCTTCTCATCACC
CAGCACCTCAGCCTGGTGGAGCAGGCTGACCACATCCTCTTTCTGGAAGGAGGCGCTATC
CGGGAGGGGGGAACCCACCAGCAGCTCATGGAGAAAAAGGGGTGCTACTGGGCCATGGTG
CAGGCTCCTGCAGATGCTCCAGAATGA
|
Protein Properties |
Number of Residues
| 808 |
Molecular Weight
| 87216.9 |
Theoretical pI
| 8.11 |
Pfam Domain Function
|
|
Signals
|
|
Transmembrane Regions
|
- ["76-96", "114-136", "153-173", "194-214", "247-267", "288-308", "359-379", "389-409", "479-499", "504-524"]
|
Protein Sequence
|
>Antigen peptide transporter 1
MAELLASAGSACSWDFPRAPPSFPPPAASRGGLGGTRSFRPHRGAESPRPGRDRDGVRVP
MASSRCPAPRGCRCLPGASLAWLGTVLLLLADWVLLRTALPRIFSLLVPTALPLLRVWAV
GLSRWAVLWLGACGVLRATVGSKSENAGAQGWLAALKPLAAALGLALPGLALFRELISWG
APGSADSTRLLHWGSHPTAFVVSYAAALPAAALWHKLGSLWVPGGQGGSGNPVRRLLGCL
GSETRRLSLFLVLVVLSSLGEMAIPFFTGRLTDWILQDGSADTFTRNLTLMSILTIASAV
LEFVGDGIYNNTMGHVHSHLQGEVFGAVLRQETEFFQQNQTGNIMSRVTEDTSTLSDSLS
ENLSLFLWYLVRGLCLLGIMLWGSVSLTMVTLITLPLLFLLPKKVGKWYQLLEVQVRESL
AKSSQVAIEALSAMPTVRSFANEEGEAQKFREKLQEIKTLNQKEAVAYAVNSWTTSISGM
LLKVGILYIGGQLVTSGAVSSGNLVTFVLYQMQFTQAVEVLLSIYPRVQKAVGSSEKIFE
YLDRTPRCPPSGLLTPLHLEGLVQFQDVSFAYPNRPDVLVLQGLTFTLRPGEVTALVGPN
GSGKSTVAALLQNLYQPTGGQLLLDGKPLPQYEHRYLHRQVAAVGQEPQVFGRSLQENIA
YGLTQKPTMEEITAAAVKSGAHSFISGLPQGYDTEVDEAGSQLSGGQRQAVALARALIRK
PCVLILDDATSALDANSQLQVEQLLYESPERYSRSVLLITQHLSLVEQADHILFLEGGAI
REGGTHQQLMEKKGCYWAMVQAPADAPE
|
External Links |
GenBank ID Protein
| 36061 |
UniProtKB/Swiss-Prot ID
| Q03518 |
UniProtKB/Swiss-Prot Entry Name
| TAP1_HUMAN |
PDB IDs
|
|
GenBank Gene ID
| X57522 |
GeneCard ID
| TAP1 |
GenAtlas ID
| TAP1 |
HGNC ID
| HGNC:43 |
References |
General References
| Not Available |