Multiple Assemblies exist for SMTL entry 1br4
SMOOTH MUSCLE MYOSIN MOTOR DOMAIN-ESSENTIAL LIGHT CHAIN COMPLEX WITH MGADP.BEF3 BOUND AT THE ACTIVE SITE; X-RAY DIFFRACTION 3.62 Å

	SMTL ID 1br4.1 Ligands MAGNESIUM ION; ADENOSINE-5'-DIPHOSPHATE; BERYLLIUM TRIFLUORIDE ION Polypeptides MYOSIN; MYOSIN Oligo-state hetero-1-1-mer
	SMTL ID 1br4.2 Ligands MAGNESIUM ION; ADENOSINE-5'-DIPHOSPHATE; BERYLLIUM TRIFLUORIDE ION Polypeptides MYOSIN; MYOSIN Oligo-state hetero-1-1-mer
	SMTL ID 1br4.3 Ligands MAGNESIUM ION; ADENOSINE-5'-DIPHOSPHATE; BERYLLIUM TRIFLUORIDE ION Polypeptides MYOSIN; MYOSIN Oligo-state hetero-1-1-mer
	SMTL ID 1br4.4 Ligands MAGNESIUM ION; ADENOSINE-5'-DIPHOSPHATE; BERYLLIUM TRIFLUORIDE ION Polypeptides MYOSIN; MYOSIN Oligo-state hetero-1-1-mer