Structure of PDB 6knf Chain A

Receptor sequence
>6knfA (length=334) Species: 223 (Achromobacter cycloclastes) [Search protein sequence]
VDISTLPRVKVDLVKPPFVHAHDQVAKTGPRVVEFTMTIEEKKLVIDREG
TEIHAMTFNGSVPGPLMVVHENDYVELRLINPDTNTLLHNIDFHAATGAL
GGGALTQVNPGEETTLRFKATKPGVFVYHCAPEGMVPWHVTSGMNGAIMV
LPRDGLKDEKGQPLTYDKIYYVGEQDFYVPKDEAGNYKKYETPGEAYEDA
VKAMRTLTPTHIVFNGAVGALTGDHALTAAVGERVLVVHSQANRDTRPHL
IGGHGDYVWATGKFRNPPDLDQETWLIPGGTAGAAFYTFRQPGVYAYVNH
NLIEAFELGAAGHFKVTGEWNDDLMTSVVKPASM
3D structure
PDB6knf 2.85 and 2.99 angstrom resolution structures of 110 kDa nitrite reductase determined by 200 kV cryogenic electron microscopy.
ChainA
Resolution2.99 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) H95 D98 H100 H135 C136 H145 M150 H255 E279 T280 H306
Catalytic site (residue number reindexed from 1) H89 D92 H94 H129 C130 H139 M144 H249 E273 T274 H300
Enzyme Commision number 1.7.2.1: nitrite reductase (NO-forming).
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 CU A H95 C136 H145 M150 H89 C130 H139 M144
BS02 CU A H100 H135 H94 H129
Gene Ontology
Molecular Function
GO:0005507 copper ion binding
GO:0016491 oxidoreductase activity
GO:0046872 metal ion binding
GO:0050421 nitrite reductase (NO-forming) activity
Biological Process
GO:0019333 denitrification pathway
GO:0042128 nitrate assimilation
Cellular Component
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:6knf, PDBe:6knf, PDBj:6knf
PDBsum6knf
PubMed34217801
UniProtP25006|NIR_ACHCY Copper-containing nitrite reductase (Gene Name=nirK)

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