Structure of PDB 1ykg Chain A Binding Site BS01

Receptor Information

>1ykg Chain A (length=146) Species: 562 (Escherichia coli)

ITIISASQTGNARRVAEALRDDLLAAKLNVKLVNAGDYKFKQIASEKLLI
VVTSTQGEGEPPEEAVALHKFLFSKKAPKLENTAFAVFSLGDTSYEFFCQ
SGKDFDSKLAELGGERLLDRVDADVEYQAAASEWRARVVDALKSRA

Ligand information

• Ligand ID: FMN
• InChI: InChI=1S/C17H21N4O9P/c1-7-3-9-10(4-8(7)2)21(15-13(18-9)16(25)20-17(26)19-15)5-11(22)14(24)12(23)6-30-31(27,28)29/h3-4,11-12,14,22-24H,5-6H2,1-2H3,(H,20,25,26)(H2,27,28,29)/t11-,12+,14-/m0/s1
• InChIKey: FVTCRASFADXXNN-SCRDCRAPSA-N
• SMILES:
  OpenEye OEToolkits 1.7.6: Cc1cc2c(cc1C)N(C3=NC(=O)NC(=O)C3=N2)CC(C(C(COP(=O)(O)O)O)O)O
  OpenEye OEToolkits 1.7.6: Cc1cc2c(cc1C)N(C3=NC(=O)NC(=O)C3=N2)C[C@@H]([C@@H]([C@@H](COP(=O)(O)O)O)O)O
  ACDLabs 12.01: N=2C(=O)NC(=O)C3=Nc1cc(C)c(C)cc1N(C=23)CC(O)C(O)C(O)COP(=O)(O)O
  CACTVS 3.385: Cc1cc2N=C3C(=O)NC(=O)N=C3N(C[CH](O)[CH](O)[CH](O)CO[P](O)(O)=O)c2cc1C
  CACTVS 3.385: Cc1cc2N=C3C(=O)NC(=O)N=C3N(C[C@H](O)[C@H](O)[C@H](O)CO[P](O)(O)=O)c2cc1C
• Formula: C17 H21 N4 O9 P
• Name: FLAVIN MONONUCLEOTIDE;
  RIBOFLAVIN MONOPHOSPHATE
• ChEMBL: CHEMBL1201794
• DrugBank: DB03247
• ZINC: ZINC000003831425
• PDB chain: 1ykg Chain A Residue 300

Receptor-Ligand Complex Structure

Structure summary

• PDB: 1ykg Solution Structure of the Sulfite Reductase Flavodoxin-like Domain from Escherichia coli
• Resolution: N/A
• Binding residue (original residue number in PDB): S69 Q70 T71 G72 N73 S116 T117 Q118 G119 L152 G153 D154 Y157 F159 F160 C161
• Binding residue (residue number reindexed from 1): S7 Q8 T9 G10 N11 S54 T55 Q56 G57 L90 G91 D92 Y95 F97 F98 C99
• Annotation score: 1

Enzymatic activity

• Enzyme Commision number: 1.8.1.2: assimilatory sulfite reductase (NADPH).

Gene Ontology

Molecular Function

• GO:0010181 FMN binding

External links

• PDB: RCSB:1ykg, PDBe:1ykg, PDBj:1ykg
• PDBsum: 1ykg
• PubMed: 15966732
• UniProt: P38038|CYSJ_ECOLI Sulfite reductase [NADPH] flavoprotein alpha-component (Gene Name=cysJ)