1DD1

CRYSTAL STRUCTURE ANALYSIS OF THE SMAD4 ACTIVE FRAGMENT

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C	SMAD4	polymer	268	29418.4	3	UniProt (Q13485) Pfam (PF03166) In PDB	Homo sapiens (human)
2	A, B, C	SULFATE ION	non-polymer		96.1	9	Chemie (SO4)
3		water	water		18.0	302	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	88255.3
Non-Polymers*	Number of molecules	9
	Total formula weight	864.6
All*	Total formula weight	89119.9

*Water molecules are not included.