6Y6O

Structure of mature activin A with small molecule 42

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Inhibin beta A chain	polymer	116	12991.9	2	UniProt (P08476) Pfam (PF00019) In PDB	Homo sapiens (Human)	Activin beta-A chain,Erythroid differentiation protein,EDF
2	A, B	SULFATE ION	non-polymer		96.1	5	Chemie (SO4)
3	A	(3~{R})-4-ethyl-3-methyl-3-propyl-1~{H}-1,4-benzodiazepine-2,5-dione	non-polymer		260.3	1	Chemie (OCK)
4		water	water		18.0	49	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	25983.7
Non-Polymers*	Number of molecules	6
	Total formula weight	740.6
All*	Total formula weight	26724.4

*Water molecules are not included.