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1UHH

Crystal structure of cp-aequorin

Functional Information from GO Data
ChainGOidnamespacecontents
A0005509molecular_functioncalcium ion binding
A0008218biological_processbioluminescence
A0046872molecular_functionmetal ion binding
B0005509molecular_functioncalcium ion binding
B0008218biological_processbioluminescence
B0046872molecular_functionmetal ion binding
Functional Information from PDB Data
site_idAC1
Number of Residues14
DetailsBINDING SITE FOR RESIDUE CZP A 1001
ChainResidue
AHIS16
AMSE165
AHIS169
ATRP173
ATYR184
AHOH1051
AMSE19
ATYR82
ATRP86
AILE105
ATRP108
AGLY109
ALEU112
ATYR132

site_idAC2
Number of Residues13
DetailsBINDING SITE FOR RESIDUE CZP B 2001
ChainResidue
BHIS16
BMSE19
BTYR82
BTRP86
BTRP108
BGLY109
BPHE113
BTYR132
BMSE165
BHIS169
BTRP173
BTYR184
BHOH2131

Functional Information from PROSITE/UniProt
site_idPS00018
Number of Residues13
DetailsEF_HAND_1 EF-hand calcium-binding domain. DVNHNGKISldEM
ChainResidueDetails
AASP24-MSE36
AASP117-TRP129
AASP153-MSE165

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues58
DetailsDomain: {"description":"EF-hand 3","evidences":[{"source":"PROSITE-ProRule","id":"PRU00448","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues60
DetailsRegion: {"description":"May interact with the chromophore"}
ChainResidueDetails

site_idSWS_FT_FI3
Number of Residues28
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
AHIS169
ATRP86
AHIS16
ATYR184
ATYR132

site_idCSA2
Number of Residues5
DetailsAnnotated By Reference To The Literature 1qv0
ChainResidueDetails
BHIS169
BTRP86
BHIS16
BTYR184
BTYR132

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PDB entries from 2025-07-30

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