Structure of PDB 1ltd Chain B

Receptor sequence
>1ltdB (length=386) Species: 4932 (Saccharomyces cerevisiae) [Search protein sequence]
TKEDIARKEQLKSLLPPLDNIINLYDFEYLASQTLTKQAWAYYSSGANDE
VTHRENHNAYHRIFFKPKILVDVRKVDISTDMLGSHVDVPFYVSATALCK
LGNPLEGEKDVARGCGQGVTKVPQMISTLASCSPEEIIEAAPSDKQIQWY
QLYVNSDRKITDDLVKNVEKLGVKALFVTVDAPSLGQREKDMKLKFSSKF
IDPSLTWKDIEELKKKTKLPIVIKGVQRTEDVIKAAEIGVSGVVLSNHGG
RQLDFSRAPIEVLAETMPILEQRNLKDKLEVFVDGGVRRGTDVLKALCLG
AKGVGLGRPFLYANSCYGRNGVEKAIEILRDEIEMSMRLLGVTSIAELKP
DLLDLSTLKARTVGVPNDVLYNEVYEGPTLTEFEDA
3D structure
PDB1ltd The 2.6-A refined structure of the Escherichia coli recombinant Saccharomyces cerevisiae flavocytochrome b2-sulfite complex.
ChainB
Resolution2.6 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) S228 Y254 T280 D282 K349 H373
Catalytic site (residue number reindexed from 1) S127 Y153 T179 D181 K224 H248
Enzyme Commision number 1.1.2.3: L-lactate dehydrogenase (cytochrome).
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 SO3 B A198 Y254 H373 R376 A97 Y153 H248 R251
BS02 FMN B Y144 S195 A196 T197 A198 S228 Q252 Y254 T280 K349 H373 R376 D409 G410 G411 R413 G432 R433 Y43 S94 A95 T96 A97 S127 Q151 Y153 T179 K224 H248 R251 D284 G285 G286 R288 G307 R308
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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