PDB 1BTK

X-RAY DIFFRACTION1.60 Å2 chains4 ECOD domains

3D Structure(domains colored, ligands/nucleic acids shown)

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Chain ABRUTON'S TYROSINE KINASEview chain

2 domains

Chain BBRUTON'S TYROSINE KINASEview chain

2 domains

#	Chain	Domain ID	Range	Family	Classification
1	A	e1btkA2	A:137-170	BTK	398 → 398.1 → 398.1.1
2	A	e1btkA1	A:2-136	PH	220 → 220.1 → 220.1.1
3	B	e1btkB2	B:137-170	BTK	398 → 398.1 → 398.1.1
4	B	e1btkB1	B:2-136	PH	220 → 220.1 → 220.1.1

ECOD domains (colored by index)Unclassified protein regionsNucleic acids (RNA/DNA)Ligands/cofactors