Structure of PDB 2qn2 Chain A Binding Site BS01

Receptor Information
>2qn2 Chain A (length=813) Species: 9986 (Oryctolagus cuniculus) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
QISVRGLAGVENVTELKKNFNRHLHFTLVKDRNVATPRDYYFALAHTVRD
HLVGRWIRTQQHYYEKDPKRIYYLSLEFYMGRTLQNTMVNLALENACDEA
TYQLGLDMEELEEIEEDAGLGNGGLGRLAACFLDSMATLGLAAYGYGIRY
EFGIFNQKICGGWQMEEADDWLRYGNPWEKARPEFTLPVHFYGRVEHTSQ
GAKWVDTQVVLAMPYDTPVPGYRNNVVNTMRLWSAKAPNDFNLGYIQAVL
DRNLAENISRVLYPNDNFFEGKELRLKQEYFVVAATLQDIIRRFKSSKFG
TNFDAFPDKVAIQLNDTHPSLAIPELMRVLVDLERLDWDKAWEVTVKTCA
YTNHTVLPEALERWPVHLLETLLPRHLQIIYEINQRFLNRVAAAFPGDVD
RLRRMSLVEEGAVKRINMAHLCIAGSHAVNGVARIHSEILKKTIFKDFYE
LEPHKFQNKTNGITPRRWLVLCNPGLAEIIAERIGEEYISDLDQLRKLLS
YVDDEAFIRDVAKVKQENKLKFAAYLEREYKVHINPNSLFDVQVKRIHEY
KRQLLNCLHVITLYNRIKKEPNKFVVPRTVMIGGKAAPGYHMAKMIIKLI
TAIGDVVNHDPVVGDRLRVIFLENYRVSLAEKVIPAADLSEQISTAGTEA
SGTGNMKFMLNGALTIGTMDGANVEMAEEAGEENFFIFGMRVEDVDRLDQ
RGYNAQEYYDRIPELRQIIEQLSSGFFSPKQPDLFKDIVNMLMHHDRFKV
FADYEEYVKCQERVSALYKNPREWTRMVIRNIATSGKFSSDRTIAQYARE
IWGVEPSRQRLPA
Ligand information
Ligand ID0MA
InChIInChI=1S/C30H46O4/c1-25(2)12-14-30(24(33)34)15-13-28(6)18(19(30)16-25)8-9-22-27(5)17-20(31)23(32)26(3,4)21(27)10-11-29(22,28)7/h8,12,14,19-23,31-32H,9-11,13,15-17H2,1-7H3,(H,33,34)/t19-,20+,21-,22+,23-,27-,28+,29+,30-/m0/s1
InChIKeyWZHVXLHLQLNEQU-LLICELPBSA-N
SMILES
SoftwareSMILES
OpenEye OEToolkits 1.5.0CC1(C[C@H]2C3=CC[C@H]4[C@]([C@@]3(CC[C@]2(C=C1)C(=O)O)C)(CC[C@@H]5[C@@]4(C[C@H]([C@@H](C5(C)C)O)O)C)C)C
CACTVS 3.341CC1(C)C[CH]2C3=CC[CH]4[C]5(C)C[CH](O)[CH](O)C(C)(C)[CH]5CC[C]4(C)[C]3(C)CC[C]2(C=C1)C(O)=O
CACTVS 3.341CC1(C)C[C@H]2C3=CC[C@@H]4[C@@]5(C)C[C@@H](O)[C@H](O)C(C)(C)[C@@H]5CC[C@@]4(C)[C@]3(C)CC[C@]2(C=C1)C(O)=O
ACDLabs 10.04O=C(O)C54C=CC(C)(C)CC5C3=CCC1C(CCC2C1(C)CC(O)C(O)C2(C)C)(C)C3(C)CC4
OpenEye OEToolkits 1.5.0CC1(CC2C3=CCC4C(C3(CCC2(C=C1)C(=O)O)C)(CCC5C4(CC(C(C5(C)C)O)O)C)C)C
FormulaC30 H46 O4
Namemaslinic acid;
(2beta,3beta,5beta,18alpha)-2,3-dihydroxyoleana-12,21-dien-28-oic acid
ChEMBL
DrugBank
ZINCZINC000038965466
PDB chain2qn2 Chain A Residue 930 [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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PDB2qn2 Naturally occurring pentacyclic triterpenes as inhibitors of glycogen phosphorylase: synthesis, structure-activity relationships, and X-ray crystallographic studies
Resolution2.698 Å
Binding residue
(original residue number in PDB)		Q71 Q72 F196 R309 R310
Binding residue
(residue number reindexed from 1)		Q60 Q61 F185 R292 R293
Annotation score1
Binding affinityPDBbind-CN: -logKd/Ki=4.55,IC50=28uM
Enzymatic activity
Catalytic site (original residue number in PDB) H377 K568 R569 K574 T676 K680
Catalytic site (residue number reindexed from 1) H354 K545 R546 K551 T653 K657
Enzyme Commision number 2.4.1.1: glycogen phosphorylase.
Gene Ontology
Molecular Function
GO:0000166 nucleotide binding
GO:0004645 1,4-alpha-oligoglucan phosphorylase activity
GO:0008184 glycogen phosphorylase activity
GO:0016757 glycosyltransferase activity
GO:0030170 pyridoxal phosphate binding
Biological Process
GO:0005975 carbohydrate metabolic process
GO:0005977 glycogen metabolic process
GO:0005980 glycogen catabolic process
Cellular Component
GO:0005737 cytoplasm
GO:0098723 skeletal muscle myofibril

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:2qn2, PDBe:2qn2, PDBj:2qn2
PDBsum2qn2
PubMed18517260
UniProtP00489|PYGM_RABIT Glycogen phosphorylase, muscle form (Gene Name=PYGM)

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