Q28090 · Q28090_BOVIN
- ProteinCytotoxic T-lymphocyte protein 4
- GeneCTLA4
- StatusUniProtKB unreviewed (TrEMBL)
- Organism
- Amino acids221 (go to sequence)
- Protein existenceEvidence at protein level
- Annotation score2/5
Function
function
Inhibitory receptor acting as a major negative regulator of T-cell responses. The affinity of CTLA4 for its natural B7 family ligands, CD80 and CD86, is considerably stronger than the affinity of their cognate stimulatory coreceptor CD28.
GO annotations
all annotations | all molecular function | virus receptor activity | dna binding | rna binding | cytoskeletal motor activity | catalytic activity | gtpase activity | structural molecule activity | transporter activity | cytoskeletal protein binding | lipid binding | cyclase activity | antioxidant activity | oxidoreductase activity | transferase activity | hydrolase activity | lyase activity | isomerase activity | ligase activity | protein tag activity | cargo receptor activity | histone binding | protein folding chaperone | translation regulator activity | nutrient reservoir activity | receptor ligand activity | molecular transducer activity | molecular adaptor activity | toxin activity | cell adhesion mediator activity | molecular function regulator activity | virus coreceptor activity | catalytic activity, acting on a protein | catalytic activity, acting on dna | catalytic activity, acting on rna | molecular carrier activity | transcription regulator activity | general transcription initiation factor activity | molecular sensor activity | molecular sequestering activity | atp-dependent activity | other molecular function | all biological process | mitotic cell cycle | cytokinesis | cytoplasmic translation | immune system process | muscle system process | circulatory system process | renal system process | respiratory system process | carbohydrate metabolic process | generation of precursor metabolites and energy | dna replication | dna repair | dna recombination | chromatin organization | dna-templated transcription | regulation of dna-templated transcription | trna metabolic process | protein folding | protein glycosylation | amino acid metabolic process | modified amino acid metabolic process | lipid metabolic process | vitamin metabolic process | sulfur compound metabolic process | intracellular protein transport | nucleocytoplasmic transport | autophagy | inflammatory response | mitochondrion organization | cytoskeleton organization | microtubule-based movement | peroxisome organization | lysosome organization | chromosome segregation | cell adhesion | establishment or maintenance of cell polarity | programmed cell death | photosynthesis | mrna metabolic process | snrna metabolic process | vesicle-mediated transport | reproductive process | digestive system process | signaling | cell differentiation | protein catabolic process | extracellular matrix organization | regulatory ncrna-mediated gene silencing | telomere organization | cell junction organization | wound healing | ribosome biogenesis | cilium organization | anatomical structure development | cell motility | nervous system process | endocrine process | protein maturation | transmembrane transport | nucleobase-containing small molecule metabolic process | hepaticobiliary system process | membrane organization | protein-containing complex assembly | cell wall organization or biogenesis | nitrogen cycle metabolic process | protein localization to plasma membrane | defense response to other organism | detoxification | meiotic nuclear division | mitotic nuclear division | mitochondrial gene expression | carbohydrate derivative metabolic process | other biological process | all cellular component | nuclear chromosome | extracellular region | extracellular space | cell wall | nucleus | nuclear envelope | nucleoplasm | chromosome | nucleolus | mitochondrion | lysosome | endosome | vacuole | peroxisome | endoplasmic reticulum | golgi apparatus | lipid droplet | microtubule organizing center | cytosol | ribosome | cytoskeleton | plasma membrane | cilium | plastid | thylakoid | external encapsulating structure | extracellular matrix | cytoplasmic vesicle | organelle | other cellular component | |||
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Aspect | Term | |
---|---|---|
Cellular Component | external side of plasma membrane | |
Biological Process | adaptive immune response | |
Biological Process | B cell receptor signaling pathway | |
Biological Process | negative regulation of regulatory T cell differentiation | |
Biological Process | regulation of T cell proliferation | |
Biological Process | T cell receptor signaling pathway |
Keywords
- Biological process
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended nameCytotoxic T-lymphocyte protein 4
- Alternative names
Gene names
Organism names
- Organism
- Strain
- Taxonomic lineageEukaryota > Metazoa > Chordata > Craniata > Vertebrata > Euteleostomi > Mammalia > Eutheria > Laurasiatheria > Artiodactyla > Ruminantia > Pecora > Bovidae > Bovinae > Bos
Accessions
- Primary accessionQ28090
Proteomes
Organism-specific databases
Subcellular Location
UniProt Annotation
GO Annotation
Cell membrane ; Single-pass type I membrane protein
Features
Showing features for transmembrane.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Transmembrane | 160-184 | Helical | |||
Keywords
- Cellular component
PTM/Processing
Features
Showing features for disulfide bond.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Disulfide bond | 56↔127 | ||||
Disulfide bond | 83↔101 | ||||
Keywords
- PTM
Proteomic databases
Expression
Gene expression databases
Interaction
Protein-protein interaction databases
Structure
Sequence
- Sequence statusComplete
- Sequence processingThe displayed sequence is further processed into a mature form.
- Length221
- Mass (Da)24,433
- Last updated1996-11-01 v1
- Checksum2CAF148422C597AA
Computationally mapped potential isoform sequences
There are 2 potential isoforms mapped to this entry
Entry | Entry name | Gene name | Length | ||
---|---|---|---|---|---|
A0AAA9SXC8 | A0AAA9SXC8_BOVIN | CTLA4 | 224 | ||
Q71AW3 | Q71AW3_BOVIN | CTLA4 | 172 |
Keywords
- Technical term
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
AB910936 EMBL· GenBank· DDBJ | BAP25848.1 EMBL· GenBank· DDBJ | mRNA | ||
AB910937 EMBL· GenBank· DDBJ | BAP25849.1 EMBL· GenBank· DDBJ | mRNA | ||
LC271176 EMBL· GenBank· DDBJ | BAX73996.1 EMBL· GenBank· DDBJ | mRNA | ||
X93305 EMBL· GenBank· DDBJ | CAA63708.1 EMBL· GenBank· DDBJ | mRNA |