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4X1G

Crystal structure of the hPXR-LBD in complex with the synthetic estrogen 17alpha-ethinylestradiol and the pesticide trans-nonachlor

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Nuclear receptor subfamily 1 group I member 2polymer31636280.91UniProt (O75469)
Pfam (PF00104)
Homo sapiens (Human)Orphan nuclear receptor PAR1,Orphan nuclear receptor PXR,Pregnane X receptor,Steroid and xenobiotic receptor,SXR
2B
(A)
Ethinyl estradiolnon-polymer296.41Chemie (3WF)
PubChem (3285)
PubChem (5991)
PubChem (24707)
PubChem (191860)
PubChem (1201547)
PubChem (1426964)
PubChem (1551019)
PubChem (6093253)
PubChem (6973660)
PubChem (6985628)
PubChem (6994197)
PubChem (7048675)
PubChem (7722693)
PubChem (9853227)
PubChem (11865431)
PubChem (11865432)
PubChem (15558445)
PubChem (16757679)
PubChem (16759144)
PubChem (44320125)
PubChem (44458347)
PubChem (46781500)
PubChem (51397082)
PubChem (57495718)
PubChem (145760)
PubChem (51397083)
PubChem (51411356)
PubChem (3037691)
PubChem (6337855)
PubChem (125116812)
PubChem (11914204)
PubChem (71777287)
PubChem (73265347)
PubChem (73896869)
PubChem (89769244)
PubChem (92201414)
PubChem (124302178)
PubChem (124679730)
PubChem (126963600)
PubChem (131770026)
PubChem (132775846)
3C
(A)
Trans-nonachlornon-polymer444.21Chemie (3WG)
PubChem (12313422)
PubChem (23618134)
PubChem (176514740)
PubChem (19520)
PubChem (53393631)
PubChem (12313421)
PubChem (12313426)
PubChem (85364149)
PubChem (91746584)
PubChem (98467369)
PubChem (101029435)
PubChem (102059010)
PubChem (154825231)
PubChem (171042608)
4D
(A)
(4S)-2-METHYL-2,4-PENTANEDIOLnon-polymer118.21Chemie (MPD)
5E
(A)
ISOPROPYL ALCOHOLnon-polymer60.11Chemie (IPA)
6F
(A)
waterwater18.0122Chemie (HOH)
Sequence modifications
A: 130 - 434 (UniProt: O75469)
PDBExternal DatabaseDetails
Met 119-initiating methionine
Lys 120-expression tag
Lys 121-expression tag
Gly 122-expression tag
His 123-expression tag
His 124-expression tag
His 125-expression tag
His 126-expression tag
His 127-expression tag
His 128-expression tag
Gly 129-expression tag
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight36280.9
Non-Polymers*Number of molecules4
Total formula weight918.9
All*Total formula weight37199.8
*Water molecules are not included.

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PDB entries from 2026-04-08

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