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3BYO

X-Ray co-crystal structure of 2-amino-6-phenylpyrimido[5',4':5,6]pyrimido[1,2-a]benzimidazol-5(6H)-one 25 bound to Lck

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Proto-oncogene tyrosine-protein kinase LCKpolymer27131425.91UniProt (P06239)
Pfam (PF07714)
Homo sapiens (human)p56-LCK, Lymphocyte cell-specific protein-tyrosine kinase, LSK, T cell-specific protein-tyrosine kinase
2B
(A)
SULFATE IONnon-polymer96.11Chemie (SO4)
3C
(A)
6-(2,6-dimethylphenyl)-2-{[4-(4-methylpiperazin-1-yl)phenyl]amino}pyrimido[5',4':5,6]pyrimido[1,2-a]benzimidazol-5(6H)-onenon-polymer530.61Chemie (AM9)
4D
(A)
waterwater18.0224Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight31425.9
Non-Polymers*Number of molecules2
Total formula weight626.7
All*Total formula weight32052.6
*Water molecules are not included.

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PDB entries from 2025-12-17

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