Structure of PDB 1ltd Chain A Binding Site BS01

Receptor Information
>1ltd Chain A (length=481) Species: 4932 (Saccharomyces cerevisiae) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
KISPAEVAKHNKPDDCWVVINGYVYDLTRFLPNHPGGQDVIKFNAGKDVT
AIFEPLHAPNVIDKYIAPEKKLGPLQGSMPPELVCPPYAPGETKEDIARK
EQLKSLLPPLDNIINLYDFEYLASQTLTKQAWAYYSSGANDEVTHRENHN
AYHRIFFKPKILVDVRKVDISTDMLGSHVDVPFYVSATALCKLGNPLEGE
KDVARGCGQGVTKVPQMISTLASCSPEEIIEAAPSDKQIQWYQLYVNSDR
KITDDLVKNVEKLGVKALFVTVDAPSLGQREKDMKLKFSNALSKFIDPSL
TWKDIEELKKKTKLPIVIKGVQRTEDVIKAAEIGVSGVVLSNHGGRQLDF
SRAPIEVLAETMPILEQRNLKDKLEVFVDGGVRRGTDVLKALCLGAKGVG
LGRPFLYANSCYGRNGVEKAIEILRDEIEMSMRLLGVTSIAELKPDLLDL
STLKARTVGVPNDVLYNEVYEGPTLTEFEDA
Ligand information
Ligand IDSO3
InChIInChI=1S/H2O3S/c1-4(2)3/h(H2,1,2,3)/p-2
InChIKeyLSNNMFCWUKXFEE-UHFFFAOYSA-L
SMILES
SoftwareSMILES
CACTVS 3.341[O-][S]([O-])=O
OpenEye OEToolkits 1.5.0[O-]S(=O)[O-]
ACDLabs 10.04[O-]S([O-])=O
FormulaO3 S
NameSULFITE ION
ChEMBL
DrugBank
ZINC
PDB chain1ltd Chain A Residue 580 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB1ltd The 2.6-A refined structure of the Escherichia coli recombinant Saccharomyces cerevisiae flavocytochrome b2-sulfite complex.
Resolution2.6 Å
Binding residue
(original residue number in PDB)		H373 R376
Binding residue
(residue number reindexed from 1)		H343 R346
Annotation score1
Enzymatic activity
Catalytic site (original residue number in PDB) S228 Y254 T280 D282 K349 H373
Catalytic site (residue number reindexed from 1) S219 Y245 T271 D273 K319 H343
Enzyme Commision number 1.1.2.3: L-lactate dehydrogenase (cytochrome).
Gene Ontology
Molecular Function
GO:0016491 oxidoreductase activity
GO:0020037 heme binding

View graph for
Molecular Function
External links
PDB RCSB:1ltd, PDBe:1ltd, PDBj:1ltd
PDBsum1ltd
PubMed8003966
UniProtP00175|CYB2_YEAST L-lactate dehydrogenase (cytochrome) (Gene Name=CYB2)

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