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5HK1

Human sigma-1 receptor bound to PD144418

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, B, C
(A, B, C)
Sigma non-opioid intracellular receptor 1polymer22725447.93UniProt (Q99720)
Pfam (PF04622)
Homo sapiens (Human)Aging-associated gene 8 protein,SR31747-binding protein,SR-BP,Sigma 1-type opioid receptor,hSigmaR1
2D, N, S
(A, B, C)
3-(4-methylphenyl)-5-(1-propyl-3,6-dihydro-2H-pyridin-5-yl)-1,2-oxazolenon-polymer282.43Chemie (61W)
PubChem (9817231)
3E, F, G, H, I...
(A, B, C)
SULFATE IONnon-polymer96.114Chemie (SO4)
4AA, L, M, W, X...
(C, A)
(2R)-2,3-dihydroxypropyl (9Z)-octadec-9-enoatenon-polymer356.57Chemie (OLC)
PubChem (25021708)
PubChem (54294270)
PubChem (46840179)
PubChem (33022)
PubChem (54294271)
PubChem (5283468)
PubChem (5364833)
PubChem (11451146)
PubChem (12178130)
5BA, CA, DA
(A, B, C)
waterwater18.0160Chemie (HOH)
Sequence modifications
A, B, C: 1 - 223 (UniProt: Q99720)
PDBExternal DatabaseDetails
Gly -3-expression tag
Pro -2-expression tag
Gly -1-expression tag
Ser 0-expression tag
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains3
Total formula weight76343.6
Non-Polymers*Number of molecules24
Total formula weight4687.8
All*Total formula weight81031.4
*Water molecules are not included.

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PDB entries from 2026-05-20

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