Structure of PDB 1biq Chain A

Receptor sequence
>1biqA (length=340) Species: 562 (Escherichia coli) [Search protein sequence]
AYTTFSQTKNDQLKEPMFFGQPVNVARYDQQKYDIFEKLIEKQLSFFWRP
EEVDVSRDRIDYQALPEHEKHIFISNLKYQTLLDSIQGRSPNVALLPLIS
IPELETWVETWAFSETIHSRSFTHIIRNIVNDPSVVFDDIVTNEQIQKRA
EGISSYYDELIEMTSYWHLLGEGTHTVNGKTVTVSLRELKKKLYLCLMSV
NALEAIRYYVSFACSFAFAERELMEGNAKIIRLIARDAALHLTGTQHMLN
LLRSGADDPEMAEIAEECKQECYDLFVQAAQQEKDWADYLFRDGSMIGLN
KDILCQYVEYITNIRMQAVGLDLPFQTRSNPIPWINTWLV
3D structure
PDB1biq Crystal structures of two self-hydroxylating ribonucleotide reductase protein R2 mutants: structural basis for the oxygen-insertion step of hydroxylation reactions catalyzed by diiron proteins.
ChainA
Resolution2.05 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) F122 D237
Catalytic site (residue number reindexed from 1) F122 D237
Enzyme Commision number 1.17.4.1: ribonucleoside-diphosphate reductase.
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 FE2 A D84 E115 H118 X208 D84 E115 H118 X208
BS02 FE A E115 E204 X208 H241 E115 E204 X208 H241
Gene Ontology
Molecular Function
GO:0004748 ribonucleoside-diphosphate reductase activity, thioredoxin disulfide as acceptor
GO:0005506 iron ion binding
GO:0005515 protein binding
GO:0016491 oxidoreductase activity
GO:0042802 identical protein binding
GO:0046872 metal ion binding
Biological Process
GO:0009185 ribonucleoside diphosphate metabolic process
GO:0009263 deoxyribonucleotide biosynthetic process
GO:0009265 2'-deoxyribonucleotide biosynthetic process
GO:0015949 nucleobase-containing small molecule interconversion
Cellular Component
GO:0005737 cytoplasm
GO:0005829 cytosol
GO:0005971 ribonucleoside-diphosphate reductase complex

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Molecular Function
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Cellular Component
External links
PDB RCSB:1biq, PDBe:1biq, PDBj:1biq
PDBsum1biq
PubMed9692970
UniProtP69924|RIR2_ECOLI Ribonucleoside-diphosphate reductase 1 subunit beta (Gene Name=nrdB)

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