5H68

Crystal structure of an engaged dimer of the Geobacillus stearothermophilus SMC head domain

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Chromosome partition protein Smc	polymer	340	37578.8	2	UniProt (A0A0K2H586) In PDB	Geobacillus stearothermophilus 10
2	A, B	PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER	non-polymer		523.2	2	Chemie (AGS)
3	A, B	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
4		water	water		18.0	242	Chemie (HOH)

Sequence modifications

A, B: 1 - 169 (UniProt: A0A0K2H586)

PDB	External Database	Details
Gly -2	-	expression tag
Pro -1	-	expression tag
His 0	-	expression tag

A, B: 1027 - 1187 (UniProt: A0A0K2H586)

PDB	External Database	Details
Gly 1020	-	linker
Ser 1021	-	linker
Gly 1022	-	linker
Gly 1023	-	linker
Gly 1024	-	linker
Ser 1025	-	linker
Gly 1026	-	linker
Gln 1118	Glu 1118	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	75157.6
Non-Polymers*	Number of molecules	4
	Total formula weight	1095.1
All*	Total formula weight	76252.7

*Water molecules are not included.