1ITL

HUMAN INTERLEUKIN 4: THE SOLUTION STRUCTURE OF A FOUR-HELIX-BUNDLE PROTEIN

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	INTERLEUKIN-4	polymer	130	15120.4	1	UniProt (P05112) Pfam (PF00727)	Homo sapiens (human)

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	15120.4
All*	Total formula weight	15120.4

*Water molecules are not included.