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1SL8

Calcium-loaded apo-aequorin from Aequorea victoria

Functional Information from GO Data
ChainGOidnamespacecontents
A0005509molecular_functioncalcium ion binding
A0008218biological_processbioluminescence
A0046872molecular_functionmetal ion binding
Functional Information from PDB Data
site_idAC1
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA A 669
ChainResidue
AASP155
AASP157
ASER159
AGLN161
AGLU166
AHOH680

site_idAC2
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA A 670
ChainResidue
AARG32
AGLU37
AHOH716
AASP26
AASN28
AASN30

site_idAC3
Number of Residues6
DetailsBINDING SITE FOR RESIDUE CA A 671
ChainResidue
AASP119
AASP121
AASN123
AALA125
AGLU130
AHOH698

Functional Information from PROSITE/UniProt
site_idPS00018
Number of Residues13
DetailsEF_HAND_1 EF-hand calcium-binding domain. DVNHNGRISldEM
ChainResidueDetails
AASP26-MET38
AASP119-TRP131
AASP155-MET167

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues35
DetailsDomain: {"description":"EF-hand 1","evidences":[{"source":"PROSITE-ProRule","id":"PRU00448","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues54
DetailsDomain: {"description":"EF-hand 2","evidences":[{"evidenceCode":"ECO:0000305"}]}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues35
DetailsDomain: {"description":"EF-hand 3","evidences":[{"source":"PROSITE-ProRule","id":"PRU00448","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI4
Number of Residues35
DetailsDomain: {"description":"EF-hand 4","evidences":[{"source":"PROSITE-ProRule","id":"PRU00448","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI5
Number of Residues30
DetailsRegion: {"description":"May interact with the chromophore"}
ChainResidueDetails

site_idSWS_FT_FI6
Number of Residues14
DetailsBinding site: {"evidences":[{"source":"PROSITE-ProRule","id":"PRU00448","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

Catalytic Information from CSA
site_idCSA1
Number of Residues5
DetailsAnnotated By Reference To The Literature 1qv0
ChainResidueDetails
ATYR186
ATYR134
AHIS18
ATRP88
AHIS171

250835

PDB entries from 2026-03-18

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