2A3G

The structure of T6 bovine insulin

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C	Insulin	polymer	21	2339.6	2	UniProt (P01317) In PDB	Bos taurus (cattle)
2	B, D	Insulin	polymer	30	3403.9	2	UniProt (P01317) Pfam (PF00049) In PDB	Bos taurus (cattle)
3	B, D	ZINC ION	non-polymer		65.4	2	Chemie (ZN)
4		water	water		18.0	56	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	11487.1
Non-Polymers*	Number of molecules	2
	Total formula weight	130.8
All*	Total formula weight	11618.0

*Water molecules are not included.