Structure of PDB 5a4f Chain S Binding Site BS02

Receptor Information
>5a4f Chain S (length=264) Species: 1403831 (Escherichia coli str. K-12 substr. MC4100) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
KPRIPVVWIHGLECTCCTESFIRSAHPLAKDVILSLISLDYDDTLMAAAG
TQAEEVFEDIITQYNGKYILAVEGNPPLGEQGMFCISSGRPFIEKLKRAA
AGASAIIAWGTCASWGCVQAARPNPTQATPIDKVITDKPIIKVPGCPPIP
DVMSAIITYMVTFDRLPDVDRMGRPLMFYGQRIHDKCYRRAHFDAGEFVQ
SWDDDAARKGYCLYKMGCKGPTTYNACSSTRWNDGVSFPIQSGHGCLGCA
ENGFWDRGSFYSRV
Ligand information
Ligand IDF3S
InChIInChI=1S/3Fe.4S
InChIKeyFCXHZBQOKRZXKS-UHFFFAOYSA-N
SMILES
SoftwareSMILES
CACTVS 3.385S1[Fe]S[Fe]2S[Fe]1S2
OpenEye OEToolkits 2.0.7S1[Fe]2S[Fe]3[S]2[Fe]1S3
FormulaFe3 S4
NameFE3-S4 CLUSTER
ChEMBL
DrugBank
ZINC
PDB chain5a4f Chain S Residue 402 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB5a4f Mechanism of hydrogen activation by [NiFe] hydrogenases.
Resolution1.25 Å
Binding residue
(original residue number in PDB)		N228 C230 W235 P242 C249 L250 C252
Binding residue
(residue number reindexed from 1)		N225 C227 W232 P239 C246 L247 C249
Annotation score1
Enzymatic activity
Catalytic site (original residue number in PDB) C149 C249 C252
Catalytic site (residue number reindexed from 1) C146 C246 C249
Enzyme Commision number 1.12.99.6: hydrogenase (acceptor).
Gene Ontology
Molecular Function
GO:0005515 protein binding
GO:0008901 ferredoxin hydrogenase activity
GO:0009055 electron transfer activity
GO:0016491 oxidoreductase activity
GO:0033748 hydrogenase (acceptor) activity
GO:0046872 metal ion binding
GO:0051536 iron-sulfur cluster binding
GO:0051538 3 iron, 4 sulfur cluster binding
GO:0051539 4 iron, 4 sulfur cluster binding
Biological Process
GO:0006113 fermentation
GO:0009061 anaerobic respiration
GO:0009267 cellular response to starvation
GO:0019645 anaerobic electron transport chain
GO:1902421 hydrogen metabolic process
Cellular Component
GO:0005886 plasma membrane
GO:0009375 ferredoxin hydrogenase complex
GO:0016020 membrane
GO:0044569 [Ni-Fe] hydrogenase complex
GO:0098567 periplasmic side of plasma membrane

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Biological Process
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Cellular Component
External links
PDB RCSB:5a4f, PDBe:5a4f, PDBj:5a4f
PDBsum5a4f
PubMed26619250
UniProtP69739|MBHS_ECOLI Hydrogenase-1 small chain (Gene Name=hyaA)

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