Structure of PDB 4pw9 Chain A

Receptor sequence
>4pw9A (length=363) Species: 266834 (Sinorhizobium meliloti 1021) [Search protein sequence]
LPDYVAWKDADALIVHSDKTLETKRSEFGTSIITPEEKLYIRNNVNTPPE
SILADRDGWKVEISGVKEPRTLTVAELKTLGLVTAATVLQCSGNGRKYFK
DQLTGDQKMSGTPWTVGAAGCVIWSGVPLKAVVDALGGPAEGARFITGTG
GEELPAGLDPKLLVVERSVPISNLDNVILAWEMNGRPLSLAHGGPLRMVV
PGYSGVNNIKYVKAVAMTEVETDAKIQKTSYRVHALGEKGSPDQPSVWEQ
PVKSWITTPHEAAKAGQVQIAGVAFGGMNACKSVEVSVDGGQTWQEAEFI
GPDLGRFAWRVFALSADLARGTYTLVSRATDTEGNVQPEETEMNGAGYGH
NGWRAPAVKLTVA
3D structure
PDB4pw9 Structural basis of interprotein electron transfer in bacterial sulfite oxidation.
ChainA
Resolution2.49 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) R78 C127 S266 Y267
Catalytic site (residue number reindexed from 1) R42 C91 S230 Y231
Enzyme Commision number 1.8.3.1: sulfite oxidase.
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 MSS A Y76 I77 R78 N79 N80 L125 C127 S128 E188 V201 H228 R233 G241 V242 N244 K246 Y247 Y267 Y40 I41 R42 N43 N44 L89 C91 S92 E152 V165 H192 R197 G205 V206 N208 K210 Y211 Y231
BS02 HEC A R78 S146 G147 R42 S110 G111
Gene Ontology
Molecular Function
GO:0008482 sulfite oxidase activity
GO:0016491 oxidoreductase activity
GO:0020037 heme binding
GO:0030151 molybdenum ion binding
GO:0043546 molybdopterin cofactor binding
GO:0046872 metal ion binding
Biological Process
GO:0006790 sulfur compound metabolic process

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Molecular Function
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Biological Process
External links
PDB RCSB:4pw9, PDBe:4pw9, PDBj:4pw9
PDBsum4pw9
PubMed26687009
UniProtQ92M24

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