1IB2

CRYSTAL STRUCTURE OF A PUMILIO-HOMOLOGY DOMAIN

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	PUMILIO 1	polymer	349	40364.5	1	UniProt (Q14671) Pfam (PF00806) In PDB	Homo sapiens (human)
2	A	BETA-MERCAPTOETHANOL	non-polymer		78.1	1	Chemie (BME)
3		water	water		18.0	392	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	40364.5
Non-Polymers*	Number of molecules	1
	Total formula weight	78.1
All*	Total formula weight	40442.7

*Water molecules are not included.