Structure of PDB 5h8v Chain B Binding Site BS01

Receptor Information
>5h8v Chain B (length=560) Species: 4577 (Zea mays) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
KRSKVEIIKEKSNFLRYPLNEELVSEAPNINESAVQLIKFHGSYQQTDRD
VRGQKNYSFMLRTKNPCGKVPNQLYLAMDTLADEFGIGTLRLTTRQTFQL
HGVLKKNLKTVLSTVIKNMGSTLGACGDLNRNVLAPAAPYVKKDILFAQQ
TAENIAALLTPQSGAYYDLWVDGEEPPEVTKARNDNSHGTNFPDSPEPIY
GTQYLPRKFKVAVTAAGDNSVDILTNDIGVVVVSDDAGEPIGFNIYVGGG
MGRTHRVETTFPRLADPLGYVPKEDILYAIKAIVVTQRENGRRDDRKYSR
MKYMIDRWGIDRFRAEVEKYYGKKFESFRPLPEWQFNSYLGWQEQGDGKL
FYGVHVDNGRVGGQAKKTLREIIEKYNLDVSITPNQNLILCGIDQAWREP
ITTALAQAGLLEPKDVDPLNLTAMACPALPLCPLAQTEAERGILPILKRI
RAVFNKVGIKDSESVVVRITGCPNGCARPYMAELGFVGDGPKSYQIWLGG
TPNQSTLAESFMDKVKLDDIEKVLEPLFTYWNGTRQEGESFGSFTNRTGF
DKLKEVVNKW
Ligand information
Ligand IDSF4
InChIInChI=1S/4Fe.4S
InChIKeyLJBDFODJNLIPKO-UHFFFAOYSA-N
SMILES
SoftwareSMILES
OpenEye OEToolkits 2.0.7[S]12[Fe]3[S]4[Fe]1[S]5[Fe]2[S]3[Fe]45
CACTVS 3.385S1[Fe]S[Fe]1.S2[Fe]S[Fe]2
FormulaFe4 S4
NameIRON/SULFUR CLUSTER
ChEMBL
DrugBank
ZINC
PDB chain5h8v Chain B Residue 701 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB5h8v Structural and mutational studies of an electron transfer complex of maize sulfite reductase and ferredoxin.
Resolution2.2 Å
Binding residue
(original residue number in PDB)		C494 A496 C500 A503 T538 G539 C540 N542 C544
Binding residue
(residue number reindexed from 1)		C426 A428 C432 A435 T470 G471 C472 N474 C476
Annotation score1
Enzymatic activity
Catalytic site (original residue number in PDB) R124 R193 K276 K278 P452 C494 C500 C540 C544
Catalytic site (residue number reindexed from 1) R62 R131 K208 K210 P384 C426 C432 C472 C476
Enzyme Commision number 1.8.7.1: assimilatory sulfite reductase (ferredoxin).
Gene Ontology
Molecular Function
GO:0003677 DNA binding
GO:0003690 double-stranded DNA binding
GO:0016002 sulfite reductase activity
GO:0016491 oxidoreductase activity
GO:0020037 heme binding
GO:0046872 metal ion binding
GO:0050311 sulfite reductase (ferredoxin) activity
GO:0051536 iron-sulfur cluster binding
GO:0051539 4 iron, 4 sulfur cluster binding
Biological Process
GO:0000103 sulfate assimilation
GO:0006790 sulfur compound metabolic process
GO:0009409 response to cold
GO:0019418 sulfide oxidation
GO:0045892 negative regulation of DNA-templated transcription
GO:1900160 plastid chromosome packaging
Cellular Component
GO:0009337 sulfite reductase complex (NADPH)
GO:0009507 chloroplast
GO:0009570 chloroplast stroma
GO:0010319 stromule
GO:0042644 chloroplast nucleoid

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Molecular Function
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Biological Process
View graph for
Cellular Component
External links
PDB RCSB:5h8v, PDBe:5h8v, PDBj:5h8v
PDBsum5h8v
PubMed26920048
UniProtO23813|SIR_MAIZE Sulfite reductase [ferredoxin], chloroplastic (Gene Name=SIR)

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