CASP2
Caspase-2
Also known as: CASP2_HUMAN, ICH1, MGC2181, NEDD2, PPP1R57
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P42575
- Gene
- CASP2
- Ensembl
- ENSG00000106144
- Chromosome
- 7
- Canonical length
- 452 aa
- Protein class
- Cancer-related genes, Enzymes, Plasma proteins, Predicted intracellular proteins
- Subcellular location
- Nucleoplasm,Centrosome,Basal body,Cytosol
OverviewNCBI Gene
This gene encodes a member of the cysteine-aspartic acid protease (caspase) family. Caspases mediate cellular apoptosis through the proteolytic cleavage of specific protein substrates. The encoded protein may function in stress-induced cell death pathways, cell cycle maintenance, and the suppression of tumorigenesis. Increased expression of this gene may play a role in neurodegenerative disorders including Alzheimer's disease, Huntington's disease and temporal lobe epilepsy. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Jan 2011]
Canonical amino-acid sequenceUniProt
452 residues, UniProt reviewed canonical sequence.
>P42575|CASP2
1 MAAPSAGSWS TFQHKELMAA DRGRRILGVC GMHPHHQETL KKNRVVLAKQ LLLSELLEHL
61 LEKDIITLEM RELIQAKVGS FSQNVELLNL LPKRGPQAFD AFCEALRETK QGHLEDMLLT
121 TLSGLQHVLP PLSCDYDLSL PFPVCESCPL YKKLRLSTDT VEHSLDNKDG PVCLQVKPCT
181 PEFYQTHFQL AYRLQSRPRG LALVLSNVHF TGEKELEFRS GGDVDHSTLV TLFKLLGYDV
241 HVLCDQTAQE MQEKLQNFAQ LPAHRVTDSC IVALLSHGVE GAIYGVDGKL LQLQEVFQLF
301 DNANCPSLQN KPKMFFIQAC RGDETDRGVD QQDGKNHAGS PGCEESDAGK EKLPKMRLPT
361 RSDMICGYAC LKGTAAMRNT KRGSWYIEAL AQVFSERACD MHVADMLVKV NALIKDREGY
421 APGTEFHRCK EMSEYCSTLC RHLYLFPGHP PTLocalizationUniProt · AlphaFold · HPA
Whether an antibody against CASP2 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Intracellular
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.36
- Highest tissue expression
- 38 nTPM
Expression across tissuesHPA
Tissue
- bone marrow: 38 nTPM
- thymus: 26 nTPM
- tonsil: 25 nTPM
- lymph node: 21 nTPM
- spleen: 18 nTPM
- skin: 17 nTPM
Single-cell type
- late spermatids: 78 nCPM
- monocyte progenitors: 60 nCPM
- hematopoietic stem cells: 56 nCPM
- early spermatids: 49 nCPM
- thymocytes: 44 nCPM
- erythrocyte progenitors: 43 nCPM
Immune cell
- basophil: 69 nTPM
- T-reg: 39 nTPM
- non-classical monocyte: 34 nTPM
- memory CD4 T-cell: 33 nTPM
- naive B-cell: 29 nTPM
- naive CD8 T-cell: 28 nTPM
Brain region
- white matter: 18 nTPM
- cerebellum: 14 nTPM
- pons: 14 nTPM
- medulla oblongata: 14 nTPM
- thalamus: 13 nTPM
- cerebral cortex: 12 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about CASP2.
Disease | AllUniProt
Conditions CASP2 is implicated in, by any mechanism.
- Intellectual developmental disorder, autosomal recessive 80, with variant lissencephaly (MRT80) MIM:620653
Disease | GeneticClinVar
5 pathogenic / likely-pathogenic of 88 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Inborn genetic diseases
- Intellectual developmental disorder, autosomal recessive 80, with variant lissencephaly
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 0.66
- gnomAD pLI
- 0
- gnomAD missense Z
- 0.5
- DepMap mean gene effect
- 0.26
- DepMap dependency class
- none
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 8% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- apoptotic process
- apoptotic signaling pathway
- cellular response to mechanical stimulus
- DNA damage response
- DNA damage response, signal transduction by p53 class mediator
- ectopic germ cell programmed cell death
- execution phase of apoptosis
- extrinsic apoptotic signaling pathway in absence of ligand
- intrinsic apoptotic signaling pathway in response to DNA damage
- luteolysis
- negative regulation of apoptotic process
- neural retina development
- positive regulation of apoptotic process
- positive regulation of apoptotic signaling pathway
- positive regulation of neuron apoptotic process
- protein processing
Molecular functions
- cysteine-type endopeptidase activity
- enzyme binding
- identical protein binding
- protein domain specific binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Peptidase C14, p20 domain
- CARD domain
- Peptidase C14, caspase non-catalytic subunit p10
- Peptidase C14 family
- Death-like domain superfamily
- Peptidase C14, caspase domain
- Peptidase C14A, caspase catalytic domain
- Peptidase family C14A, His active site
- Caspase-like domain superfamily
- Peptidase family C14A, cysteine active site
- Caspase recruitment domain
- Caspase domain
- Caspase-2, CARD domain
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of CASP2 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads CASP2 as an antibody target. Whether an autoantibody or antibody against CASP2 could matter depends on whether native CASP2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
CASP2 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.
Annotation status
The present source text does not explicitly label CASP2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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