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Protein

Caspase-3

Gene

CASP3

Organism
Macaca fascicularis (Crab-eating macaque) (Cynomolgus monkey)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Experimental evidence at transcript leveli

Functioni

Involved in the activation cascade of caspases responsible for apoptosis execution. At the onset of apoptosis it proteolytically cleaves poly(ADP-ribose) polymerase (PARP) at a '216-Asp-|-Gly-217' bond. Cleaves and activates sterol regulatory element binding proteins (SREBPs) between the basic helix-loop-helix leucine zipper domain and the membrane attachment domain. Cleaves and activates caspase-6, -7 and -9. Involved in the cleavage of huntingtin. Triggers cell adhesion in sympathetic neurons through RET cleavage (By similarity).By similarity

Catalytic activityi

Strict requirement for an Asp residue at positions P1 and P4. It has a preferred cleavage sequence of Asp-Xaa-Xaa-Asp-|- with a hydrophobic amino-acid residue at P2 and a hydrophilic amino-acid residue at P3, although Val or Ala are also accepted at this position.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Active sitei121By similarity1
Active sitei163By similarity1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionHydrolase, Protease, Thiol protease
Biological processApoptosis

Protein family/group databases

MEROPSiC14.003.

Names & Taxonomyi

Protein namesi
Recommended name:
Caspase-3 (EC:3.4.22.56)
Short name:
CASP-3
Cleaved into the following 2 chains:
Gene namesi
Name:CASP3
ORF Names:QmoA-14231
OrganismiMacaca fascicularis (Crab-eating macaque) (Cynomolgus monkey)
Taxonomic identifieri9541 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniCercopithecidaeCercopithecinaeMacaca

Subcellular locationi

GO - Cellular componenti

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
PropeptideiPRO_00002613321 – 9By similarity9
PropeptideiPRO_000026133310 – 28By similarityAdd BLAST19
ChainiPRO_000026133429 – 175Caspase-3 subunit p17Add BLAST147
ChainiPRO_0000261335176 – 277Caspase-3 subunit p12Add BLAST102

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei1N-acetylmethionineBy similarity1
Modified residuei11N6-acetyllysineBy similarity1
Modified residuei26PhosphoserineBy similarity1
Modified residuei163S-nitrosocysteine; in inhibited formBy similarity1

Post-translational modificationi

Cleavage by granzyme B, caspase-6, caspase-8 and caspase-10 generates the two active subunits. Additional processing of the propeptides is likely due to the autocatalytic activity of the activated protease. Active heterodimers between the small subunit of caspase-7 protease and the large subunit of caspase-3 also occur and vice versa (By similarity).By similarity
S-nitrosylated on its catalytic site cysteine in unstimulated human cell lines and denitrosylated upon activation of the Fas apoptotic pathway, associated with an increase in intracellular caspase activity. Fas therefore activates caspase-3 not only by inducing the cleavage of the caspase zymogen to its active subunits, but also by stimulating the denitrosylation of its active site thiol (By similarity).By similarity

Keywords - PTMi

Acetylation, Phosphoprotein, S-nitrosylation, Zymogen

Interactioni

Subunit structurei

Heterotetramer that consists of two anti-parallel arranged heterodimers, each one formed by a 17 kDa (p17) and a 12 kDa (p12) subunit. Interacts with BIRC6/bruce.By similarity

Structurei

3D structure databases

ProteinModelPortaliQ2PFV2.
SMRiQ2PFV2.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the peptidase C14A family.Curated

Phylogenomic databases

HOVERGENiHBG050802.
KOiK02187.

Family and domain databases

CDDicd00032. CASc. 1 hit.
InterProiView protein in InterPro
IPR029030. Caspase-like_dom.
IPR015470. Caspase_3.
IPR033139. Caspase_cys_AS.
IPR016129. Caspase_his_AS.
IPR002138. Pept_C14_p10.
IPR001309. Pept_C14_p20.
IPR015917. Pept_C14A.
PANTHERiPTHR10454:SF178. PTHR10454:SF178. 1 hit.
PRINTSiPR00376. IL1BCENZYME.
SMARTiView protein in SMART
SM00115. CASc. 1 hit.
SUPFAMiSSF52129. SSF52129. 1 hit.
PROSITEiView protein in PROSITE
PS01122. CASPASE_CYS. 1 hit.
PS01121. CASPASE_HIS. 1 hit.
PS50207. CASPASE_P10. 1 hit.
PS50208. CASPASE_P20. 1 hit.

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

Q2PFV2-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MENTENSVDS KSIKSLEPKI IHGSKSVDSG ISLDNSYKMD YPEMGLCIII
60 70 80 90 100
NNKNFHKSTG MASRSGTDVD AANLRETFIN LKYGVRNKND LTREEIVELM
110 120 130 140 150
RNVSKEDHSK RSSFVCVLLS HGEEGIIFGT NGPLDLKKIT SFFRGDCCRS
160 170 180 190 200
LTGKPKLFII QACRGTELDC GIEADSGVED DMACHKIPVE ADFLYAYSTA
210 220 230 240 250
PGYYSWRNSK DGSWFIQSLC AMLKQYADKL EFMHILTRVN RKVATEFESF
260 270
SLDATFHAKK QIPCIVSMLT KELYFYH
Length:277
Mass (Da):31,286
Last modified:February 7, 2006 - v1
Checksum:i6D60AB6FFB97FB7C
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AB220485 mRNA. Translation: BAE73018.1.
RefSeqiNP_001271764.1. NM_001284835.1.
UniGeneiMfa.5326.

Genome annotation databases

GeneIDi102144182.
KEGGimcf:102144182.

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.

Entry informationi

Entry nameiCASP3_MACFA
AccessioniPrimary (citable) accession number: Q2PFV2
Entry historyiIntegrated into UniProtKB/Swiss-Prot: November 28, 2006
Last sequence update: February 7, 2006
Last modified: May 10, 2017
This is version 67 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Documents

  1. Peptidase families
    Classification of peptidase families and list of entries
  2. SIMILARITY comments
    Index of protein domains and families