Structure of PDB 1q16 Chain C

Receptor sequence
>1q16C (length=224) Species: 562 (Escherichia coli) [Search protein sequence]
MQFLNMFFFDIYPYIAGAVFLIGSWLRYDYGQYTWRAASSQMLDRKGMNL
ASNLFHIGILGIFVGHFFGMLTPHWMEAWLPIEVKQKMAMFAGGASGVLC
LIGGVLLLKRRLFSPRVRATTTGADILILSLLVIQCALGLLTIPFSAQHM
DGSEMMKLVGWAQSVVTFHGGASQHLDGVAFIFRLHLVLGMTLFLLFPFS
RLIHIWSVPVEYLTRKYQLVRARH
3D structure
PDB1q16 Insights into the respiratory electron transfer pathway from the structure of nitrate reductase A
ChainC
Resolution1.9 Å
3D
structure
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Enzymatic activity
Enzyme Commision number 1.7.5.1: nitrate reductase (quinone).
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 HEM C S39 S40 Q41 M48 F55 H56 R112 R202 H205 I206 S39 S40 Q41 M48 F55 H56 R111 R201 H204 I205
BS02 HEM C I59 I62 H66 M70 A90 G94 Q136 C137 G140 M156 L159 H187 L188 G191 F195 I59 I62 H66 M70 A89 G93 Q135 C136 G139 M155 L158 H186 L187 G190 F194
Gene Ontology
Molecular Function
GO:0008940 nitrate reductase activity
GO:0009055 electron transfer activity
GO:0016491 oxidoreductase activity
GO:0020037 heme binding
GO:0046872 metal ion binding
GO:0160182 nitrate reductase (quinone) activity
Biological Process
GO:0009061 anaerobic respiration
GO:0019645 anaerobic electron transport chain
GO:0042126 nitrate metabolic process
GO:0042128 nitrate assimilation
Cellular Component
GO:0005886 plasma membrane
GO:0009325 nitrate reductase complex
GO:0016020 membrane
GO:0044799 NarGHI complex

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Molecular Function
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Cellular Component
External links
PDB RCSB:1q16, PDBe:1q16, PDBj:1q16
PDBsum1q16
PubMed12910261
UniProtP11350|NARI_ECOLI Respiratory nitrate reductase 1 gamma chain (Gene Name=narI)

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