Structure of PDB 2eq9 Chain H Binding Site BS01

Receptor Information

>2eq9 Chain H (length=460) Species: 300852 (Thermus thermophilus HB8)

MKTYDLIVIGTGPGGYHAAIRAAQLGLKVLAVEAGEVGGVCLNVGCIPTK
ALLHAAETLHHLKVAEGFGLKAKPELDLKKLGGWRDQVVKKLTGGVGTLL
KGNGVELLRGFARLVGPKEVEVGGERYGAKSLILATGSEPLELKGFPFGE
DVWDSTRALKVEEGLPKRLLVIGGGAVGLELGQVYRRLGAEVTLIEYMPE
ILPQGDPETAALLRRALEKEGIRVRTKTKAVGYEKKKDGLHVRLEPAEGG
EGEEVVVDKVLVAVGRKPRTEGLGLEKAGVKVDERGFIRVNARMETSVPG
VYAIGDAARPPLLAHKAMREGLIAAENAAGKDSAFDYQVPSVVYTSPEWA
GVGLTEEEAKRAGYKVKVGKFPLAASGRALTLGGAEGMVKVVGDEETDLL
LGVFIVGPQAGELIAEAALALEMGATLTDLALTVHPHPTLSESLMEAAEA
FHKQAIHILN

Ligand information

• Ligand ID: FAD
• InChI: InChI=1S/C27H33N9O15P2/c1-10-3-12-13(4-11(10)2)35(24-18(32-12)25(42)34-27(43)33-24)5-14(37)19(39)15(38)6-48-52(44,45)51-53(46,47)49-7-16-20(40)21(41)26(50-16)36-9-31-17-22(28)29-8-30-23(17)36/h3-4,8-9,14-16,19-21,26,37-41H,5-7H2,1-2H3,(H,44,45)(H,46,47)(H2,28,29,30)(H,34,42,43)/t14-,15+,16+,19-,20+,21+,26+/m0/s1
• InChIKey: VWWQXMAJTJZDQX-UYBVJOGSSA-N
• SMILES:
  CACTVS 3.341: Cc1cc2N=C3C(=O)NC(=O)N=C3N(C[C@H](O)[C@H](O)[C@H](O)CO[P@](O)(=O)O[P@@](O)(=O)OC[C@H]4O[C@H]([C@H](O)[C@@H]4O)n5cnc6c(N)ncnc56)c2cc1C
  OpenEye OEToolkits 1.5.0: Cc1cc2c(cc1C)N(C3=NC(=O)NC(=O)C3=N2)CC(C(C(COP(=O)(O)OP(=O)(O)OCC4C(C(C(O4)n5cnc6c5ncnc6N)O)O)O)O)O
  OpenEye OEToolkits 1.5.0: Cc1cc2c(cc1C)N(C3=NC(=O)NC(=O)C3=N2)C[C@@H]([C@@H]([C@@H](CO[P@@](=O)(O)O[P@](=O)(O)OC[C@@H]4[C@H]([C@H]([C@@H](O4)n5cnc6c5ncnc6N)O)O)O)O)O
  CACTVS 3.341: Cc1cc2N=C3C(=O)NC(=O)N=C3N(C[CH](O)[CH](O)[CH](O)CO[P](O)(=O)O[P](O)(=O)OC[CH]4O[CH]([CH](O)[CH]4O)n5cnc6c(N)ncnc56)c2cc1C
  ACDLabs 10.04: O=C2C3=Nc1cc(c(cc1N(C3=NC(=O)N2)CC(O)C(O)C(O)COP(=O)(O)OP(=O)(O)OCC6OC(n5cnc4c(ncnc45)N)C(O)C6O)C)C
• Formula: C27 H33 N9 O15 P2
• Name: FLAVIN-ADENINE DINUCLEOTIDE
• ChEMBL: CHEMBL1232653
• DrugBank: DB03147
• ZINC: ZINC000008215434
• PDB chain: 2eq9 Chain H Residue 5482

Receptor-Ligand Complex Structure

Structure summary

• PDB: 2eq9 Crystal structure of lipoamide dehydrogenase from Thermus thermophilus HB8
• Resolution: 2.09 Å
• Binding residue (original residue number in PDB): I15 G16 G18 P19 G20 E39 A40 G45 V46 C47 G51 C52 K56 F118 A119 T147 G148 S166 R274 R277 D314 L320 L321 A322 H323 Y353
• Binding residue (residue number reindexed from 1): I9 G10 G12 P13 G14 E33 A34 G39 V40 C41 G45 C46 K50 F111 A112 T136 G137 S155 R266 R269 D306 L312 L313 A314 H315 Y344
• Annotation score: 2

Enzymatic activity

• Catalytic site (original residue number in PDB): V43 C47 C52 T55 A186 E190 H444 H446 E451 N469
• Catalytic site (residue number reindexed from 1): V37 C41 C46 T49 A176 E180 H435 H437 E442 N460
• Enzyme Commision number: 1.8.1.4: dihydrolipoyl dehydrogenase.

Gene Ontology

Molecular Function

• GO:0000166 nucleotide binding
• GO:0004148 dihydrolipoyl dehydrogenase activity
• GO:0016491 oxidoreductase activity
• GO:0016668 oxidoreductase activity, acting on a sulfur group of donors, NAD(P) as acceptor
• GO:0050660 flavin adenine dinucleotide binding

External links

• PDB: RCSB:2eq9, PDBe:2eq9, PDBj:2eq9
• PDBsum: 2eq9
• UniProt: Q5SLR0