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1QX3

Conformational restrictions in the active site of unliganded human caspase-3

Functional Information from GO Data
ChainGOidnamespacecontents
A0001554biological_processluteolysis
A0001666biological_processresponse to hypoxia
A0001782biological_processB cell homeostasis
A0001818biological_processnegative regulation of cytokine production
A0002020molecular_functionprotease binding
A0004175molecular_functionendopeptidase activity
A0004190molecular_functionaspartic-type endopeptidase activity
A0004197molecular_functioncysteine-type endopeptidase activity
A0004861molecular_functioncyclin-dependent protein serine/threonine kinase inhibitor activity
A0005123molecular_functiondeath receptor binding
A0005515molecular_functionprotein binding
A0005634cellular_componentnucleus
A0005654cellular_componentnucleoplasm
A0005737cellular_componentcytoplasm
A0005829cellular_componentcytosol
A0006508biological_processproteolysis
A0006915biological_processapoptotic process
A0006974biological_processDNA damage response
A0007413biological_processaxonal fasciculation
A0007507biological_processheart development
A0007605biological_processsensory perception of sound
A0007611biological_processlearning or memory
A0008047molecular_functionenzyme activator activity
A0008233molecular_functionpeptidase activity
A0008234molecular_functioncysteine-type peptidase activity
A0008627biological_processintrinsic apoptotic signaling pathway in response to osmotic stress
A0009410biological_processresponse to xenobiotic stimulus
A0009411biological_processresponse to UV
A0009611biological_processresponse to wounding
A0009749biological_processresponse to glucose
A0010033biological_processresponse to organic substance
A0010038biological_processresponse to metal ion
A0010165biological_processresponse to X-ray
A0014070biological_processresponse to organic cyclic compound
A0016005molecular_functionphospholipase A2 activator activity
A0016241biological_processregulation of macroautophagy
A0016485biological_processprotein processing
A0016787molecular_functionhydrolase activity
A0021766biological_processhippocampus development
A0030163biological_processprotein catabolic process
A0030182biological_processneuron differentiation
A0030216biological_processkeratinocyte differentiation
A0030218biological_processerythrocyte differentiation
A0030220biological_processplatelet formation
A0030889biological_processnegative regulation of B cell proliferation
A0031264cellular_componentdeath-inducing signaling complex
A0031647biological_processregulation of protein stability
A0032025biological_processresponse to cobalt ion
A0032355biological_processresponse to estradiol
A0032496biological_processresponse to lipopolysaccharide
A0034349biological_processglial cell apoptotic process
A0034612biological_processresponse to tumor necrosis factor
A0035094biological_processresponse to nicotine
A0035556biological_processintracellular signal transduction
A0042542biological_processresponse to hydrogen peroxide
A0043025cellular_componentneuronal cell body
A0043029biological_processT cell homeostasis
A0043065biological_processpositive regulation of apoptotic process
A0043200biological_processresponse to amino acid
A0043525biological_processpositive regulation of neuron apoptotic process
A0044346biological_processfibroblast apoptotic process
A0044877molecular_functionprotein-containing complex binding
A0045165biological_processcell fate commitment
A0045786biological_processnegative regulation of cell cycle
A0046007biological_processnegative regulation of activated T cell proliferation
A0048011biological_processneurotrophin TRK receptor signaling pathway
A0051146biological_processstriated muscle cell differentiation
A0051384biological_processresponse to glucocorticoid
A0051402biological_processneuron apoptotic process
A0051604biological_processprotein maturation
A0051716biological_processcellular response to stimulus
A0061713biological_processanterior neural tube closure
A0070269biological_processpyroptosis
A0071310biological_processcellular response to organic substance
A0071407biological_processcellular response to organic cyclic compound
A0071887biological_processleukocyte apoptotic process
A0072734biological_processcellular response to staurosporine
A0097153molecular_functioncysteine-type endopeptidase activity involved in apoptotic process
A0097190biological_processapoptotic signaling pathway
A0097193biological_processintrinsic apoptotic signaling pathway
A0097194biological_processexecution phase of apoptosis
A0097199molecular_functioncysteine-type endopeptidase activity involved in apoptotic signaling pathway
A0097200molecular_functioncysteine-type endopeptidase activity involved in execution phase of apoptosis
A0140639biological_processpositive regulation of pyroptosis
A1902004biological_processpositive regulation of amyloid-beta formation
A1904019biological_processepithelial cell apoptotic process
Functional Information from PROSITE/UniProt
site_idPS01121
Number of Residues15
DetailsCASPASE_HIS Caspase family histidine active site. HskrsSfvCvLLSHG
ChainResidueDetails
AHIS108-GLY122

site_idPS01122
Number of Residues12
DetailsCASPASE_CYS Caspase family cysteine active site. KPKLFIIQACRG
ChainResidueDetails
ALYS154-GLY165

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues2
DetailsACT_SITE: ACT_SITE => ECO:0000250|UniProtKB:P29466
ChainResidueDetails
AHIS121
ACYS163

site_idSWS_FT_FI2
Number of Residues1
DetailsMOD_RES: S-nitrosocysteine; in inhibited form => ECO:0000269|PubMed:10213689
ChainResidueDetails
ACYS163

site_idSWS_FT_FI3
Number of Residues1
DetailsMOD_RES: (Microbial infection) ADP-riboxanated arginine => ECO:0000269|PubMed:35338844, ECO:0000269|PubMed:35446120, ECO:0000269|PubMed:36423631
ChainResidueDetails
AARG207

Catalytic Information from CSA
site_idMCSA1
Number of Residues5
DetailsM-CSA 815
ChainResidueDetails
ATHR62electrostatic stabiliser
ASER63electrostatic stabiliser
AHIS121electrostatic stabiliser, proton acceptor, proton donor
AGLY122electrostatic stabiliser
ACYS163electrostatic stabiliser

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PDB entries from 2024-04-24

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