Seroatlas · Human Serome Atlas

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 PT

LocalizationUniProt · 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.

Disease | GeneticClinVar

5 pathogenic / likely-pathogenic of 88 ClinVar records.

Conditions with pathogenic or likely-pathogenic variants.

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

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

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.

Canonical record: https://seroatlas.com/gene/CASP2. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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