| Identification |
| HMDB Protein ID
| CDBP04770 |
| Secondary Accession Numbers
| Not Available |
| Name
| Antigen peptide transporter 2 |
| Description
| Not Available |
| Synonyms
|
- APT2
- ATP-binding cassette sub-family B member 3
- PSF-2
- Peptide supply factor 2
- Peptide transporter PSF2
- Peptide transporter TAP2
- Peptide transporter involved in antigen processing 2
- Really interesting new gene 11 protein
|
| Gene Name
| TAP2 |
| 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 |
| 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 |
| transporter activity |
| active transmembrane transporter activity |
| substrate-specific transporter activity |
| primary active transmembrane transporter activity |
| nucleoside-triphosphatase activity |
| p-p-bond-hydrolysis-driven transmembrane transporter activity |
| hydrolase activity, acting on acid anhydrides |
| atpase activity, coupled to transmembrane movement of substances |
| binding |
| hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides |
| nucleotide binding |
| pyrophosphatase activity |
| 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
| TAP2 |
| Gene Sequence
|
>4062 bp
ATGCGGCTCCCTGACCTGAGACCCTGGACCTCCCTGCTGCTGGTGGACGCGGCTTTACTG
TGGCTGCTTCAGGGCCCTCTGGGGACTTTGCTTCCTCAAGGGCTGCCAGGACTATGGCTG
GAGGGGACCCTGCGGCTGGGAGGGCTGTGGGGGCTGCTAAAGCTAAGAGGGCTGCTGGGA
TTTGTGGGGACACTGCTGCTCCCGCTCTGTCTGGCCACCCCCCTGACTGTCTCCCTGAGA
GCCCTGGTCGCGGGGGCCTCACGTGCTCCCCCAGCCAGAGTCGCTTCAGCCCCTTGGAGC
TGGCTGCTGGTGGGGTACGGGGCTGCGGGGCTCAGCTGGTCACTGTGGGCTGTTCTGAGC
CCTCCTGGAGCCCAGGAGAAGGAGCAGGACCAGGTGAACAACAAAGTCTTGATGTGGAGG
CTGCTGAAGCTCTCCAGGCCGGACCTGCCTCTCCTCGTTGCCGCCTTCTTCTTCCTTGTC
CTTGCTGTTTTGGGTGAGACATTAATCCCTCACTATTCTGGTCGTGTGATTGACATCCTG
GGAGGTGATTTTGACCCCCATGCCTTTGCCAGTGCCATCTTCTTCATGTGCCTCTTCTCC
TTTGGCAGCTCACTGTCTGCAGGCTGCCGAGGAGGCTGCTTCACCTACACCATGTCTCGA
ATCAACTTGCGGATCCGGGAGCAGCTTTTCTCCTCCCTGCTGCGCCAGGACCTCGGTTTC
TTCCAGGAGACTAAGACAGGGGAGCTGAACTCACGGCTGAGCTCGGATACCACCCTGATG
AGTAACTGGCTTCCTTTAAATGCCAATGTGCTCTTGCGAAGCCTGGTGAAAGTGGTGGGG
CTGTATGGCTTCATGCTCAGCATATCGCCTCGACTCACCCTCCTTTCTCTGCTGCACATG
CCCTTCACAATAGCAGCGGAGAAGGTGTACAACACCCGCCATCAGGAAGTGCTTCGGGAG
ATCCAGGATGCAGTGGCCAGGGCGGGGCAGGTGGTGCGGGAAGCCGTTGGAGGGCTGCAG
ACCGTTCGCAGTTTTGGGGCCGAGGAGCATGAAGTCTGTCGCTATAAAGAGGCCCTTGAA
CAATGTCGGCAGCTGTATTGGCGGAGAGACCTGGAACGCGCCTTGTACCTGCTCATAAGG
AGGGTGCTGCACTTGGGGGTGCAGATGCTGATGCTGAGCTGTGGGCTGCAGCAGATGCAG
GATGGGGAGCTCACCCAGGGCAGCCTGCTTTCCTTTATGATCTACCAGGAGAGCGTGGGG
AGCTATGTGCAGACCCTGGTATACATATATGGGGATATGCTCAGCAACGTGGGAGCTGCA
GAGAAGGTTTTCTCCTACATGGACCGACAGCCAAATCTGCCTTCACCTGGCACGCTTGCC
CCCACCACTCTGCAGGGGGTTGTGAAATTCCAAGACGTCTCCTTTGCATATCCCAATCGC
CCTGACAGGCCTGTGCTCAAGGGGCTGACGTTTACCCTACGTCCTGGTGAGGTGACGGCG
CTGGTGGGACCCAATGGGTCTGGGAAGAGCACAGTGGCTGCCCTGCTGCAGAATCTGTAC
CAGCCCACAGGGGGACAGGTGCTGCTGGATGAAAAGCCCATCTCACAGTATGAACACTGC
TACCTGCACAGCCAGGTGGTTTCAGTTGGGCAGGAGCCTGTGCTGTTCTCCGGTTCTGTG
AGGAACAACATTACTTATGGGCTGCAGAGCTGCGAAGATGATAAGGTGATGGCGGCTGCC
CAGGCTGCCCACGCAGATGACTTCATCCAGGAAATGGAGCATGGAATATACACAGATGTA
GGGGAGAAGGGAAGCCAGCTGGCTGCGGGACAGAAACAACGTCTGGCCATTGCCCGGGCC
CTTGTACGAGACCCGCGGGTCCTCATCCTGGATGAGGCTACTAGTGCCCTAGATGTGCAG
TGCGAGCAGGCCCTGCAGGACTGGAATTCCCGTGGGGATCGCACAGTGCTGGTGATTGCT
CACAGGCTGCAGACAGTTCAGCGCGCCCACCAGATCCTGGTGCTCCAGGAGGGCAAGCTG
CAGAAGCTTGCCCAGCTCTAG
|
| Protein Properties |
| Number of Residues
| 686 |
| Molecular Weight
| 75663.2 |
| Theoretical pI
| 8.1 |
| Pfam Domain Function
|
|
| Signals
|
|
|
Transmembrane Regions
|
- ["7-27", "57-77", "99-119", "149-169", "188-208", "267-287", "294-314", "375-395", "409-429"]
|
| Protein Sequence
|
>Antigen peptide transporter 2
MRLPDLRPWTSLLLVDAALLWLLQGPLGTLLPQGLPGLWLEGTLRLGGLWGLLKLRGLLG
FVGTLLLPLCLATPLTVSLRALVAGASRAPPARVASAPWSWLLVGYGAAGLSWSLWAVLS
PPGAQEKEQDQVNNKVLMWRLLKLSRPDLPLLVAAFFFLVLAVLGETLIPHYSGRVIDIL
GGDFDPHAFASAIFFMCLFSFGSSLSAGCRGGCFTYTMSRINLRIREQLFSSLLRQDLGF
FQETKTGELNSRLSSDTTLMSNWLPLNANVLLRSLVKVVGLYGFMLSISPRLTLLSLLHM
PFTIAAEKVYNTRHQEVLREIQDAVARAGQVVREAVGGLQTVRSFGAEEHEVCRYKEALE
QCRQLYWRRDLERALYLLVRRVLHLGVQMLMLSCGLQQMQDGELTQGSLLSFMIYQESVG
SYVQTLVYIYGDMLSNVGAAEKVFSYMDRQPNLPSPGTLAPTTLQGVVKFQDVSFAYPNR
PDRPVLKGLTFTLRPGEVTALVGPNGSGKSTVAALLQNLYQPTGGQVLLDEKPISQYEHC
YLHSQVVSVGQEPVLFSGSVRNNIAYGLQSCEDDKVMAAAQAAHADDFIQEMEHGIYTDV
GEKGSQLAAGQKQRLAIARALVRDPRVLILDEATSALDVQCEQALQDWNSRGDRTVLVIA
HRLQTVQRAHQILVLQEGKLQKLAQL
|
| External Links |
| GenBank ID Protein
| 168983733 |
| UniProtKB/Swiss-Prot ID
| Q03519 |
| UniProtKB/Swiss-Prot Entry Name
| TAP2_HUMAN |
| PDB IDs
|
Not Available |
| GenBank Gene ID
| CT009502 |
| GeneCard ID
| TAP2 |
| GenAtlas ID
| TAP2 |
| HGNC ID
| HGNC:44 |
| References |
| General References
| Not Available |