Structure of PDB 1qdb Chain A Binding Site BS01

Receptor Information
>1qdb Chain A (length=473) Species: 65553 (Sulfurospirillum deleyianum) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
GIAGKEKSEEWAKYYPRQFDSWKKTKEYDSFTDMLAKDPALVIAWSGYAF
SKDYNSPRGHYYALQDNVNSLRTGAPVDAKTGPLPTACWTCKSPDVPRLI
EEDGELEYFTGKWAKYGSQIVNVIGCANCHDDKTAELKVRVPHLNRGLQA
AGLKTFEESTHQDKRTLVCAQCHVEYYFKKTEWKDAKGADKTAMVVTLPW
ANGVGKDGNAGVEGMIKYYDEINFSDWTHNISKTPMLKAQHPGFEFWKSG
IHGQKGVSCADCHMPYTQEGSVKYSDHQVKENPLDSMDQSCMNCHRESES
KLRGIVHQKYERKEFLNKVAFDNIGKAHLETGKAIEAGASDEELKEVRKL
IRHGQFKADMAIAAHGNYFHAPEETLRLLAAGSDDAQKARLLLVKILAKH
GVMDYIAPDFDTKDKAQKLAKVDIAALAAEKMKFKQTLEQEWKKEAKAKG
RANPELYKDVDTINDGKSSWNKK
Ligand information
Ligand IDCA
InChIInChI=1S/Ca/q+2
InChIKeyBHPQYMZQTOCNFJ-UHFFFAOYSA-N
SMILES
SoftwareSMILES
CACTVS 3.341[Ca++]
ACDLabs 10.04
OpenEye OEToolkits 1.5.0		[Ca+2]
FormulaCa
NameCALCIUM ION
ChEMBL
DrugBankDB14577
ZINC
PDB chain1qdb Chain A Residue 520 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB1qdb Structure of cytochrome c nitrite reductase.
Resolution1.9 Å
Binding residue
(original residue number in PDB)		E216 Y217 K279 Q281
Binding residue
(residue number reindexed from 1)		E175 Y176 K238 Q240
Annotation score1
Enzymatic activity
Enzyme Commision number 1.7.2.2: nitrite reductase (cytochrome; ammonia-forming).
Gene Ontology
Molecular Function
GO:0005509 calcium ion binding
GO:0016491 oxidoreductase activity
GO:0020037 heme binding
GO:0042279 nitrite reductase (cytochrome, ammonia-forming) activity
GO:0046872 metal ion binding
Biological Process
GO:0019645 anaerobic electron transport chain
GO:0042128 nitrate assimilation
Cellular Component
GO:0030288 outer membrane-bounded periplasmic space
GO:0042597 periplasmic space

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:1qdb, PDBe:1qdb, PDBj:1qdb
PDBsum1qdb
PubMed10440380
UniProtQ9Z4P4|NRFA_SULDE Cytochrome c-552 (Gene Name=nrfA)

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