1NUE

X-RAY STRUCTURE OF NM23 HUMAN NUCLEOSIDE DIPHOSPHATE KINASE B COMPLEXED WITH GDP AT 2 ANGSTROMS RESOLUTION

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, D, E...	NUCLEOSIDE DIPHOSPHATE KINASE	polymer	151	17192.9	6	UniProt (P22392) Pfam (PF00334) In PDB	Homo sapiens (human)
2	A, C	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
3	A, B, C, D, E...	GUANOSINE-5'-DIPHOSPHATE	non-polymer		443.2	6	Chemie (GDP)
4		water	water		18.0	334	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	103157.2
Non-Polymers*	Number of molecules	8
	Total formula weight	2707.8
All*	Total formula weight	105865.0

*Water molecules are not included.