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2H61

X-ray structure of human Ca2+-loaded S100B

Functional Information from GO Data
ChainGOidnamespacecontents
A0001726cellular_componentruffle
A0005102molecular_functionsignaling receptor binding
A0005509molecular_functioncalcium ion binding
A0005515molecular_functionprotein binding
A0005576cellular_componentextracellular region
A0005615cellular_componentextracellular space
A0005634cellular_componentnucleus
A0005654cellular_componentnucleoplasm
A0005737cellular_componentcytoplasm
A0005829cellular_componentcytosol
A0007155biological_processcell adhesion
A0007409biological_processaxonogenesis
A0007417biological_processcentral nervous system development
A0007611biological_processlearning or memory
A0008270molecular_functionzinc ion binding
A0008284biological_processpositive regulation of cell population proliferation
A0008360biological_processregulation of cell shape
A0031643biological_processpositive regulation of myelination
A0042802molecular_functionidentical protein binding
A0042803molecular_functionprotein homodimerization activity
A0043025cellular_componentneuronal cell body
A0043065biological_processpositive regulation of apoptotic process
A0043123biological_processpositive regulation of canonical NF-kappaB signal transduction
A0044548molecular_functionS100 protein binding
A0045471biological_processresponse to ethanol
A0045666biological_processpositive regulation of neuron differentiation
A0046872molecular_functionmetal ion binding
A0048156molecular_functiontau protein binding
A0048306molecular_functioncalcium-dependent protein binding
A0048471cellular_componentperinuclear region of cytoplasm
A0048708biological_processastrocyte differentiation
A0050786molecular_functionRAGE receptor binding
A0050806biological_processpositive regulation of synaptic transmission
A0051384biological_processresponse to glucocorticoid
A0051597biological_processresponse to methylmercury
A0060291biological_processlong-term synaptic potentiation
A0071456biological_processcellular response to hypoxia
A0072347biological_processresponse to anesthetic
A0097490biological_processsympathetic neuron projection extension
A1990138biological_processneuron projection extension
A1990845biological_processadaptive thermogenesis
A2001015biological_processnegative regulation of skeletal muscle cell differentiation
B0001726cellular_componentruffle
B0005102molecular_functionsignaling receptor binding
B0005509molecular_functioncalcium ion binding
B0005515molecular_functionprotein binding
B0005576cellular_componentextracellular region
B0005615cellular_componentextracellular space
B0005634cellular_componentnucleus
B0005654cellular_componentnucleoplasm
B0005737cellular_componentcytoplasm
B0005829cellular_componentcytosol
B0007155biological_processcell adhesion
B0007409biological_processaxonogenesis
B0007417biological_processcentral nervous system development
B0007611biological_processlearning or memory
B0008270molecular_functionzinc ion binding
B0008284biological_processpositive regulation of cell population proliferation
B0008360biological_processregulation of cell shape
B0031643biological_processpositive regulation of myelination
B0042802molecular_functionidentical protein binding
B0042803molecular_functionprotein homodimerization activity
B0043025cellular_componentneuronal cell body
B0043065biological_processpositive regulation of apoptotic process
B0043123biological_processpositive regulation of canonical NF-kappaB signal transduction
B0044548molecular_functionS100 protein binding
B0045471biological_processresponse to ethanol
B0045666biological_processpositive regulation of neuron differentiation
B0046872molecular_functionmetal ion binding
B0048156molecular_functiontau protein binding
B0048306molecular_functioncalcium-dependent protein binding
B0048471cellular_componentperinuclear region of cytoplasm
B0048708biological_processastrocyte differentiation
B0050786molecular_functionRAGE receptor binding
B0050806biological_processpositive regulation of synaptic transmission
B0051384biological_processresponse to glucocorticoid
B0051597biological_processresponse to methylmercury
B0060291biological_processlong-term synaptic potentiation
B0071456biological_processcellular response to hypoxia
B0072347biological_processresponse to anesthetic
B0097490biological_processsympathetic neuron projection extension
B1990138biological_processneuron projection extension
B1990845biological_processadaptive thermogenesis
B2001015biological_processnegative regulation of skeletal muscle cell differentiation
C0001726cellular_componentruffle
C0005102molecular_functionsignaling receptor binding
C0005509molecular_functioncalcium ion binding
C0005515molecular_functionprotein binding
C0005576cellular_componentextracellular region
C0005615cellular_componentextracellular space
C0005634cellular_componentnucleus
C0005654cellular_componentnucleoplasm
C0005737cellular_componentcytoplasm
C0005829cellular_componentcytosol
C0007155biological_processcell adhesion
C0007409biological_processaxonogenesis
C0007417biological_processcentral nervous system development
C0007611biological_processlearning or memory
C0008270molecular_functionzinc ion binding
C0008284biological_processpositive regulation of cell population proliferation
C0008360biological_processregulation of cell shape
C0031643biological_processpositive regulation of myelination
C0042802molecular_functionidentical protein binding
C0042803molecular_functionprotein homodimerization activity
C0043025cellular_componentneuronal cell body
C0043065biological_processpositive regulation of apoptotic process
C0043123biological_processpositive regulation of canonical NF-kappaB signal transduction
C0044548molecular_functionS100 protein binding
C0045471biological_processresponse to ethanol
C0045666biological_processpositive regulation of neuron differentiation
C0046872molecular_functionmetal ion binding
C0048156molecular_functiontau protein binding
C0048306molecular_functioncalcium-dependent protein binding
C0048471cellular_componentperinuclear region of cytoplasm
C0048708biological_processastrocyte differentiation
C0050786molecular_functionRAGE receptor binding
C0050806biological_processpositive regulation of synaptic transmission
C0051384biological_processresponse to glucocorticoid
C0051597biological_processresponse to methylmercury
C0060291biological_processlong-term synaptic potentiation
C0071456biological_processcellular response to hypoxia
C0072347biological_processresponse to anesthetic
C0097490biological_processsympathetic neuron projection extension
C1990138biological_processneuron projection extension
C1990845biological_processadaptive thermogenesis
C2001015biological_processnegative regulation of skeletal muscle cell differentiation
D0001726cellular_componentruffle
D0005102molecular_functionsignaling receptor binding
D0005509molecular_functioncalcium ion binding
D0005515molecular_functionprotein binding
D0005576cellular_componentextracellular region
D0005615cellular_componentextracellular space
D0005634cellular_componentnucleus
D0005654cellular_componentnucleoplasm
D0005737cellular_componentcytoplasm
D0005829cellular_componentcytosol
D0007155biological_processcell adhesion
D0007409biological_processaxonogenesis
D0007417biological_processcentral nervous system development
D0007611biological_processlearning or memory
D0008270molecular_functionzinc ion binding
D0008284biological_processpositive regulation of cell population proliferation
D0008360biological_processregulation of cell shape
D0031643biological_processpositive regulation of myelination
D0042802molecular_functionidentical protein binding
D0042803molecular_functionprotein homodimerization activity
D0043025cellular_componentneuronal cell body
D0043065biological_processpositive regulation of apoptotic process
D0043123biological_processpositive regulation of canonical NF-kappaB signal transduction
D0044548molecular_functionS100 protein binding
D0045471biological_processresponse to ethanol
D0045666biological_processpositive regulation of neuron differentiation
D0046872molecular_functionmetal ion binding
D0048156molecular_functiontau protein binding
D0048306molecular_functioncalcium-dependent protein binding
D0048471cellular_componentperinuclear region of cytoplasm
D0048708biological_processastrocyte differentiation
D0050786molecular_functionRAGE receptor binding
D0050806biological_processpositive regulation of synaptic transmission
D0051384biological_processresponse to glucocorticoid
D0051597biological_processresponse to methylmercury
D0060291biological_processlong-term synaptic potentiation
D0071456biological_processcellular response to hypoxia
D0072347biological_processresponse to anesthetic
D0097490biological_processsympathetic neuron projection extension
D1990138biological_processneuron projection extension
D1990845biological_processadaptive thermogenesis
D2001015biological_processnegative regulation of skeletal muscle cell differentiation
E0001726cellular_componentruffle
E0005102molecular_functionsignaling receptor binding
E0005509molecular_functioncalcium ion binding
E0005515molecular_functionprotein binding
E0005576cellular_componentextracellular region
E0005615cellular_componentextracellular space
E0005634cellular_componentnucleus
E0005654cellular_componentnucleoplasm
E0005737cellular_componentcytoplasm
E0005829cellular_componentcytosol
E0007155biological_processcell adhesion
E0007409biological_processaxonogenesis
E0007417biological_processcentral nervous system development
E0007611biological_processlearning or memory
E0008270molecular_functionzinc ion binding
E0008284biological_processpositive regulation of cell population proliferation
E0008360biological_processregulation of cell shape
E0031643biological_processpositive regulation of myelination
E0042802molecular_functionidentical protein binding
E0042803molecular_functionprotein homodimerization activity
E0043025cellular_componentneuronal cell body
E0043065biological_processpositive regulation of apoptotic process
E0043123biological_processpositive regulation of canonical NF-kappaB signal transduction
E0044548molecular_functionS100 protein binding
E0045471biological_processresponse to ethanol
E0045666biological_processpositive regulation of neuron differentiation
E0046872molecular_functionmetal ion binding
E0048156molecular_functiontau protein binding
E0048306molecular_functioncalcium-dependent protein binding
E0048471cellular_componentperinuclear region of cytoplasm
E0048708biological_processastrocyte differentiation
E0050786molecular_functionRAGE receptor binding
E0050806biological_processpositive regulation of synaptic transmission
E0051384biological_processresponse to glucocorticoid
E0051597biological_processresponse to methylmercury
E0060291biological_processlong-term synaptic potentiation
E0071456biological_processcellular response to hypoxia
E0072347biological_processresponse to anesthetic
E0097490biological_processsympathetic neuron projection extension
E1990138biological_processneuron projection extension
E1990845biological_processadaptive thermogenesis
E2001015biological_processnegative regulation of skeletal muscle cell differentiation
F0001726cellular_componentruffle
F0005102molecular_functionsignaling receptor binding
F0005509molecular_functioncalcium ion binding
F0005515molecular_functionprotein binding
F0005576cellular_componentextracellular region
F0005615cellular_componentextracellular space
F0005634cellular_componentnucleus
F0005654cellular_componentnucleoplasm
F0005737cellular_componentcytoplasm
F0005829cellular_componentcytosol
F0007155biological_processcell adhesion
F0007409biological_processaxonogenesis
F0007417biological_processcentral nervous system development
F0007611biological_processlearning or memory
F0008270molecular_functionzinc ion binding
F0008284biological_processpositive regulation of cell population proliferation
F0008360biological_processregulation of cell shape
F0031643biological_processpositive regulation of myelination
F0042802molecular_functionidentical protein binding
F0042803molecular_functionprotein homodimerization activity
F0043025cellular_componentneuronal cell body
F0043065biological_processpositive regulation of apoptotic process
F0043123biological_processpositive regulation of canonical NF-kappaB signal transduction
F0044548molecular_functionS100 protein binding
F0045471biological_processresponse to ethanol
F0045666biological_processpositive regulation of neuron differentiation
F0046872molecular_functionmetal ion binding
F0048156molecular_functiontau protein binding
F0048306molecular_functioncalcium-dependent protein binding
F0048471cellular_componentperinuclear region of cytoplasm
F0048708biological_processastrocyte differentiation
F0050786molecular_functionRAGE receptor binding
F0050806biological_processpositive regulation of synaptic transmission
F0051384biological_processresponse to glucocorticoid
F0051597biological_processresponse to methylmercury
F0060291biological_processlong-term synaptic potentiation
F0071456biological_processcellular response to hypoxia
F0072347biological_processresponse to anesthetic
F0097490biological_processsympathetic neuron projection extension
F1990138biological_processneuron projection extension
F1990845biological_processadaptive thermogenesis
F2001015biological_processnegative regulation of skeletal muscle cell differentiation
G0001726cellular_componentruffle
G0005102molecular_functionsignaling receptor binding
G0005509molecular_functioncalcium ion binding
G0005515molecular_functionprotein binding
G0005576cellular_componentextracellular region
G0005615cellular_componentextracellular space
G0005634cellular_componentnucleus
G0005654cellular_componentnucleoplasm
G0005737cellular_componentcytoplasm
G0005829cellular_componentcytosol
G0007155biological_processcell adhesion
G0007409biological_processaxonogenesis
G0007417biological_processcentral nervous system development
G0007611biological_processlearning or memory
G0008270molecular_functionzinc ion binding
G0008284biological_processpositive regulation of cell population proliferation
G0008360biological_processregulation of cell shape
G0031643biological_processpositive regulation of myelination
G0042802molecular_functionidentical protein binding
G0042803molecular_functionprotein homodimerization activity
G0043025cellular_componentneuronal cell body
G0043065biological_processpositive regulation of apoptotic process
G0043123biological_processpositive regulation of canonical NF-kappaB signal transduction
G0044548molecular_functionS100 protein binding
G0045471biological_processresponse to ethanol
G0045666biological_processpositive regulation of neuron differentiation
G0046872molecular_functionmetal ion binding
G0048156molecular_functiontau protein binding
G0048306molecular_functioncalcium-dependent protein binding
G0048471cellular_componentperinuclear region of cytoplasm
G0048708biological_processastrocyte differentiation
G0050786molecular_functionRAGE receptor binding
G0050806biological_processpositive regulation of synaptic transmission
G0051384biological_processresponse to glucocorticoid
G0051597biological_processresponse to methylmercury
G0060291biological_processlong-term synaptic potentiation
G0071456biological_processcellular response to hypoxia
G0072347biological_processresponse to anesthetic
G0097490biological_processsympathetic neuron projection extension
G1990138biological_processneuron projection extension
G1990845biological_processadaptive thermogenesis
G2001015biological_processnegative regulation of skeletal muscle cell differentiation
H0001726cellular_componentruffle
H0005102molecular_functionsignaling receptor binding
H0005509molecular_functioncalcium ion binding
H0005515molecular_functionprotein binding
H0005576cellular_componentextracellular region
H0005615cellular_componentextracellular space
H0005634cellular_componentnucleus
H0005654cellular_componentnucleoplasm
H0005737cellular_componentcytoplasm
H0005829cellular_componentcytosol
H0007155biological_processcell adhesion
H0007409biological_processaxonogenesis
H0007417biological_processcentral nervous system development
H0007611biological_processlearning or memory
H0008270molecular_functionzinc ion binding
H0008284biological_processpositive regulation of cell population proliferation
H0008360biological_processregulation of cell shape
H0031643biological_processpositive regulation of myelination
H0042802molecular_functionidentical protein binding
H0042803molecular_functionprotein homodimerization activity
H0043025cellular_componentneuronal cell body
H0043065biological_processpositive regulation of apoptotic process
H0043123biological_processpositive regulation of canonical NF-kappaB signal transduction
H0044548molecular_functionS100 protein binding
H0045471biological_processresponse to ethanol
H0045666biological_processpositive regulation of neuron differentiation
H0046872molecular_functionmetal ion binding
H0048156molecular_functiontau protein binding
H0048306molecular_functioncalcium-dependent protein binding
H0048471cellular_componentperinuclear region of cytoplasm
H0048708biological_processastrocyte differentiation
H0050786molecular_functionRAGE receptor binding
H0050806biological_processpositive regulation of synaptic transmission
H0051384biological_processresponse to glucocorticoid
H0051597biological_processresponse to methylmercury
H0060291biological_processlong-term synaptic potentiation
H0071456biological_processcellular response to hypoxia
H0072347biological_processresponse to anesthetic
H0097490biological_processsympathetic neuron projection extension
H1990138biological_processneuron projection extension
H1990845biological_processadaptive thermogenesis
H2001015biological_processnegative regulation of skeletal muscle cell differentiation
Functional Information from PDB Data
site_idAC1
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA A 801
ChainResidue
ASER18
AGLU21
AASP23
ALYS26
AGLU31
AHOH804

site_idAC2
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA A 802
ChainResidue
AGLU67
AGLU72
AHOH805
AASP61
AASP63
AASP65

site_idAC3
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA B 803
ChainResidue
BSER18
BGLU21
BASP23
BLYS26
BGLU31
BHOH807

site_idAC4
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA B 804
ChainResidue
BASP61
BASP63
BASP65
BGLU67
BGLU72
BHOH839

site_idAC5
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA C 805
ChainResidue
CSER18
CGLU21
CASP23
CLYS26
CGLU31
CHOH812

site_idAC6
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA C 806
ChainResidue
CASP61
CASP63
CASP65
CGLU67
CGLU72
CHOH809

site_idAC7
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA D 807
ChainResidue
DSER18
DGLU21
DASP23
DLYS26
DGLU31
DHOH820

site_idAC8
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA D 808
ChainResidue
DASP61
DASP63
DASP65
DGLU67
DGLU72
DHOH821

site_idAC9
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA D 817
ChainResidue
DASP12
DHOH822
DHOH823
ESER41
ELEU44
EHOH904

site_idBC1
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA E 809
ChainResidue
ESER18
EGLU21
EASP23
ELYS26
EGLU31
EHOH902

site_idBC2
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA E 810
ChainResidue
EASP61
EASP63
EASP65
EGLU67
EGLU72
EHOH903

site_idBC3
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA F 811
ChainResidue
FSER18
FGLU21
FASP23
FLYS26
FGLU31
FHOH814

site_idBC4
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA F 812
ChainResidue
FASP61
FASP63
FASP65
FGLU67
FGLU72
FHOH874

site_idBC5
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA G 813
ChainResidue
GSER18
GGLU21
GASP23
GLYS26
GGLU31
GHOH851

site_idBC6
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA G 814
ChainResidue
GASP61
GASP63
GASP65
GGLU67
GGLU72
GHOH820

site_idBC7
Number of Residues5
DetailsBINDING SITE FOR RESIDUE CA G 818
ChainResidue
BSER41
BHOH805
BHOH806
GASP12
GHOH819

site_idBC8
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA H 815
ChainResidue
HGLU31
HHOH820
HSER18
HGLU21
HASP23
HLYS26

site_idBC9
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA H 816
ChainResidue
HASP61
HASP63
HASP65
HGLU67
HGLU72
HHOH818

site_idCC1
Number of Residues9
DetailsBINDING SITE FOR RESIDUE PG4 E 901
ChainResidue
CPHE88
DILE11
DASP12
DHIS15
EHIS42
EPHE43
EALA83
EPHE87
EHOH964

Functional Information from PROSITE/UniProt
site_idPS00018
Number of Residues13
DetailsEF_HAND_1 EF-hand calcium-binding domain. DNDGDGECDfqEF
ChainResidueDetails
AASP61-PHE73
CASP61-PHE73

site_idPS00303
Number of Residues22
DetailsS100_CABP S-100/ICaBP type calcium binding protein signature. VMetLDndgDgecDFqEFmaFV
ChainResidueDetails
AVAL56-VAL77
CVAL56-VAL77

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues280
DetailsDomain: {"description":"EF-hand 1","evidences":[{"evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues280
DetailsDomain: {"description":"EF-hand 2","evidences":[{"source":"PROSITE-ProRule","id":"PRU00448","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues28
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"20950652","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"3CZT","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues40
DetailsBinding site: {"evidences":[{"source":"PubMed","id":"20950652","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"3CZT","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3D0Y","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3D10","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues32
DetailsBinding site: {"evidences":[{"source":"PROSITE-ProRule","id":"PRU00448","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"20950652","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"3CZT","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3D0Y","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3D10","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues8
DetailsBinding site: {"evidences":[{"source":"PROSITE-ProRule","id":"PRU00448","evidenceCode":"ECO:0000255"},{"source":"PubMed","id":"20950652","evidenceCode":"ECO:0000269"},{"source":"PDB","id":"2H61","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3CZT","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3D0Y","evidenceCode":"ECO:0007744"},{"source":"PDB","id":"3D10","evidenceCode":"ECO:0007744"}]}
ChainResidueDetails

site_idSWS_FT_FI7
Number of Residues8
DetailsModified residue: {"description":"N-acetylserine; alternate","evidences":[{"source":"UniProtKB","id":"P02638","evidenceCode":"ECO:0000250"}]}
ChainResidueDetails

247536

PDB entries from 2026-01-14

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