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8UWR

Crystal structure of human ACVR1 (ALK2) kinase in complex with compound 3

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Activin receptor type-1polymer32337066.31UniProt (Q04771)
Pfam (PF07714)
Homo sapiens (human)Activin receptor type I,ACTR-I,Activin receptor-like kinase 2,ALK-2,Serine/threonine-protein kinase receptor R1,SKR1,TGF-B superfamily receptor type I,TSR-I
2B, C, D, E, F...
(A)
SULFATE IONnon-polymer96.16Chemie (SO4)
3H
(A)
cyclopropyl(4-{(8R)-6-[4-(piperazin-1-yl)phenyl]pyrrolo[1,2-b]pyridazin-4-yl}piperazin-1-yl)methanonenon-polymer430.51Chemie (XQX)
4I
(A)
waterwater18.0163Chemie (HOH)
Sequence modifications
A: 201 - 499 (UniProt: Q04771)
PDBExternal DatabaseDetails
Met 177-initiating methionine
Gly 178-expression tag
His 179-expression tag
His 180-expression tag
His 181-expression tag
His 182-expression tag
His 183-expression tag
His 184-expression tag
Ser 185-expression tag
Ser 186-expression tag
Gly 187-expression tag
Val 188-expression tag
Asp 189-expression tag
Leu 190-expression tag
Gly 191-expression tag
Thr 192-expression tag
Glu 193-expression tag
Asn 194-expression tag
Leu 195-expression tag
Tyr 196-expression tag
Phe 197-expression tag
Gln 198-expression tag
Ser 199-expression tag
Met 200-expression tag
Asp 207Gln 207engineered mutation
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight37066.3
Non-Polymers*Number of molecules7
Total formula weight1006.9
All*Total formula weight38073.3
*Water molecules are not included.

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PDB entries from 2026-03-11

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