Structure of PDB 4gd3 Chain Q

Receptor sequence
>4gd3Q (length=304) Species: 83333 (Escherichia coli K-12) [Search protein sequence]
KPRIPVVWIHGLECTCCTESFIRSAHPLAKDVILSLISLDYDDTLMAAAG
TQAEEVFEDIITQYNGKYILAVEGNPPLGEQGMFCISSGRPFIEKLKRAA
AGASAIIAWGTCASWGCVQAARPNPTQATPIDKVITDKPIIKVPGCPPIP
DVMSAIITYMVTFDRLPDVDRMGRPLMFYGQRIHDKCYRRAHFDAGEFVQ
SWDDDAARKGYCLYKMGCKGPTTYNACSSTRWNDGVSFCIQSGHGCLGCA
ENGFWDRGSFYSRVVDIPQMGTHSTADTVGLTALGVVAAAVGVHAVASAV
DQRR
3D structure
PDB4gd3 Crystal Structure of the O(2)-Tolerant Membrane-Bound Hydrogenase 1 from Escherichia coli in Complex with Its Cognate Cytochrome b.
ChainQ
Resolution3.3 Å
3D
structure
Catalytic site residues are labeled in the structure
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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).
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 SF4 Q H187 C190 R192 R193 F196 C215 L216 Y217 C221 P224 I243 H184 C187 R189 R190 F193 C212 L213 Y214 C218 P221 I240
BS02 SF4 Q N228 C230 W235 C242 C249 L250 C252 N225 C227 W232 C239 C246 L247 C249
BS03 F4S Q C17 C19 C20 G113 C115 C120 C149 C14 C16 C17 G110 C112 C117 C146
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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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:4gd3, PDBe:4gd3, PDBj:4gd3
PDBsum4gd3
PubMed23260654
UniProtP69739|MBHS_ECOLI Hydrogenase-1 small chain (Gene Name=hyaA)

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