3J04

EM structure of the heavy meromyosin subfragment of Chick smooth muscle Myosin with regulatory light chain in phosphorylated state

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, D	Myosin-11	polymer	909	104657.8	2	UniProt (P10587) Pfam (PF02736) Pfam (PF00063) In PDB	Gallus gallus (chicken)	Myosin heavy chain 11, Myosin heavy chain, gizzard smooth muscle
2	B, E	Myosin regulatory light chain 2, smooth muscle major isoform	polymer	143	16583.4	2	UniProt (P02612) Pfam (PF13499) In PDB	Gallus gallus (chicken)	MLC-2, DTNB, G1, Isoform L20-A
3	C, F	Myosin light polypeptide 6	polymer	148	16654.8	2	UniProt (P02607) In PDB	Gallus gallus (chicken)	G2 catalytic, LC17-GI, LC17-NM, Myosin light chain alkali smooth-muscle/non-muscle isoforms

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	275792.0
All*	Total formula weight	275792.0

*Water molecules are not included.