3UUM

Crystal Structure of N-terminal first spectrin repeat of utrophin

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	utrophin	polymer	123	14278.7	2	UniProt (O55147) Pfam (PF00435) In PDB	Rattus norvegicus (rat)
2	A	MAGNESIUM ION	non-polymer		24.3	1	Chemie (MG)
3		water	water		18.0	51	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	28557.4
Non-Polymers*	Number of molecules	1
	Total formula weight	24.3
All*	Total formula weight	28581.7

*Water molecules are not included.