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5K89

Crystal Structure of Human Calcium-Bound S100A1

Functional Information from GO Data
ChainGOidnamespacecontents
A0000122biological_processnegative regulation of transcription by RNA polymerase II
A0005509molecular_functioncalcium ion binding
A0005515molecular_functionprotein binding
A0005576cellular_componentextracellular region
A0005634cellular_componentnucleus
A0005737cellular_componentcytoplasm
A0005739cellular_componentmitochondrion
A0005829cellular_componentcytosol
A0008016biological_processregulation of heart contraction
A0016529cellular_componentsarcoplasmic reticulum
A0021762biological_processsubstantia nigra development
A0030018cellular_componentZ disc
A0031430cellular_componentM band
A0031672cellular_componentA band
A0031674cellular_componentI band
A0032991cellular_componentprotein-containing complex
A0035556biological_processintracellular signal transduction
A0042311biological_processvasodilation
A0042802molecular_functionidentical protein binding
A0042803molecular_functionprotein homodimerization activity
A0044548molecular_functionS100 protein binding
A0046872molecular_functionmetal ion binding
A0048306molecular_functioncalcium-dependent protein binding
A0051117molecular_functionATPase binding
A1903672biological_processpositive regulation of sprouting angiogenesis
C0000122biological_processnegative regulation of transcription by RNA polymerase II
C0005509molecular_functioncalcium ion binding
C0005515molecular_functionprotein binding
C0005576cellular_componentextracellular region
C0005634cellular_componentnucleus
C0005737cellular_componentcytoplasm
C0005739cellular_componentmitochondrion
C0005829cellular_componentcytosol
C0008016biological_processregulation of heart contraction
C0016529cellular_componentsarcoplasmic reticulum
C0021762biological_processsubstantia nigra development
C0030018cellular_componentZ disc
C0031430cellular_componentM band
C0031672cellular_componentA band
C0031674cellular_componentI band
C0032991cellular_componentprotein-containing complex
C0035556biological_processintracellular signal transduction
C0042311biological_processvasodilation
C0042802molecular_functionidentical protein binding
C0042803molecular_functionprotein homodimerization activity
C0044548molecular_functionS100 protein binding
C0046872molecular_functionmetal ion binding
C0048306molecular_functioncalcium-dependent protein binding
C0051117molecular_functionATPase binding
C1903672biological_processpositive regulation of sprouting angiogenesis
H0000122biological_processnegative regulation of transcription by RNA polymerase II
H0005509molecular_functioncalcium ion binding
H0005515molecular_functionprotein binding
H0005576cellular_componentextracellular region
H0005634cellular_componentnucleus
H0005737cellular_componentcytoplasm
H0005739cellular_componentmitochondrion
H0005829cellular_componentcytosol
H0008016biological_processregulation of heart contraction
H0016529cellular_componentsarcoplasmic reticulum
H0021762biological_processsubstantia nigra development
H0030018cellular_componentZ disc
H0031430cellular_componentM band
H0031672cellular_componentA band
H0031674cellular_componentI band
H0032991cellular_componentprotein-containing complex
H0035556biological_processintracellular signal transduction
H0042311biological_processvasodilation
H0042802molecular_functionidentical protein binding
H0042803molecular_functionprotein homodimerization activity
H0044548molecular_functionS100 protein binding
H0046872molecular_functionmetal ion binding
H0048306molecular_functioncalcium-dependent protein binding
H0051117molecular_functionATPase binding
H1903672biological_processpositive regulation of sprouting angiogenesis
Functional Information from PDB Data
site_idAC1
Number of Residues4
Detailsbinding site for residue TRS A 101
ChainResidue
AGLN39
ASER43
HGLU6
HCYS86

site_idAC2
Number of Residues5
Detailsbinding site for residue CA A 102
ChainResidue
AASP63
AASN65
AASP67
AGLU69
AGLU74

site_idAC3
Number of Residues6
Detailsbinding site for residue CA A 103
ChainResidue
ASER20
AGLU23
AASP25
ALYS28
AGLU33
AHOH202

site_idAC4
Number of Residues6
Detailsbinding site for residue CA C 101
ChainResidue
CASP63
CASN65
CASP67
CGLU69
CGLU74
CHOH201

site_idAC5
Number of Residues5
Detailsbinding site for residue CA C 102
ChainResidue
CSER20
CGLU23
CASP25
CLYS28
CGLU33

site_idAC6
Number of Residues5
Detailsbinding site for residue CA H 101
ChainResidue
HASP63
HASN65
HASP67
HGLU69
HGLU74

site_idAC7
Number of Residues6
Detailsbinding site for residue CA H 102
ChainResidue
HSER20
HGLU23
HASP25
HLYS28
HGLU33
HHOH201

Functional Information from PROSITE/UniProt
site_idPS00018
Number of Residues13
DetailsEF_HAND_1 EF-hand calcium-binding domain. DENGDGEVDfqEY
ChainResidueDetails
AASP63-TYR75

site_idPS00303
Number of Residues22
DetailsS100_CABP S-100/ICaBP type calcium binding protein signature. VMkeLDengDgevDFqEYvvLV
ChainResidueDetails
AVAL58-VAL79

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues6
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"23351007","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"28368280","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues15
DetailsBinding site: {"evidences":[{"source":"PROSITE-ProRule","id":"PRU00448","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"23351007","evidenceCode":"ECO:0000269"},{"source":"PubMed","id":"28368280","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues3
DetailsModified residue: {"description":"S-nitrosocysteine","evidences":[{"source":"PubMed","id":"22989881","evidenceCode":"ECO:0000269"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues35
DetailsDomain: {"description":"EF-hand 1","evidences":[{"evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

247536

PDB entries from 2026-01-14

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