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1R1K

Crystal structure of the ligand-binding domains of the heterodimer EcR/USP bound to ponasterone A

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(D)
Ecdysone receptorpolymer26630369.01UniProt (O18473)Heliothis virescens (tobacco budworm)Ecdysteroid receptor, 20-hydroxy-ecdysone receptor, 20E receptor, HvEcR
2B
(A)
ULTRASPIRACLE PROTEINpolymer26329951.81UniProt (Q7SIF6)Heliothis virescens (tobacco budworm)
3C
(D)
2,3,14,20,22-PENTAHYDROXYCHOLEST-7-EN-6-ONEnon-polymer464.61Chemie (P1A)
PubChem (21119315)
PubChem (24985076)
PubChem (177677459)
PubChem (44143975)
PubChem (44231486)
PubChem (21119316)
PubChem (115127)
PubChem (57988722)
PubChem (73758207)
PubChem (4482619)
PubChem (5320672)
PubChem (91884703)
PubChem (6325829)
PubChem (12314451)
PubChem (138988226)
PubChem (11984598)
PubChem (129664321)
PubChem (146674585)
PubChem (154731155)
PubChem (154790218)
PubChem (160227469)
PubChem (163096526)
PubChem (163096527)
PubChem (163096528)
PubChem (163096529)
PubChem (163096530)
PubChem (163342445)
PubChem (163869997)
PubChem (170325868)
4D
(A)
L-ALPHA-PHOSPHATIDYL-BETA-OLEOYL-GAMMA-PALMITOYL-PHOSPHATIDYLETHANOLAMINEnon-polymer709.91Chemie (EPH)
PubChem (46936564)
PubChem (4474776)
PubChem (5288167)
PubChem (6323300)
PubChem (168313614)
5E, F
(D, A)
waterwater18.08Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains2
Total formula weight60320.7
Non-Polymers*Number of molecules2
Total formula weight1174.6
All*Total formula weight61495.3
*Water molecules are not included.

253389

PDB entries from 2026-05-13

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