5XNS

Crystal structure of the Smc head domain with an extended coiled coil bound to the C-terminal domain of ScpA derived from Pyrococcus furiosus

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Chromosome partition protein Smc	polymer	405	45220.0	1	UniProt (Q8TZY2) Pfam (PF02463) In PDB	Pyrococcus furiosus (strain ATCC 43587 / DSM 3638 / JCM 8422 / Vc1)
2	C	Segregation and condensation protein A	polymer	74	8783.4	1	UniProt (Q8TZY3) In PDB	Pyrococcus furiosus (strain ATCC 43587 / DSM 3638 / JCM 8422 / Vc1)
3	A	CITRIC ACID	non-polymer		192.1	2	Chemie (CIT)
4		water	water		18.0	32	Chemie (HOH)

Sequence modifications

A: 1 - 201 (UniProt: Q8TZY2)
A: 973 - 1169 (UniProt: Q8TZY2)

PDB	External Database	Details
Ser 966	-	linker
Gly 967	-	linker
Gly 968	-	linker
Ser 969	-	linker
Gly 970	-	linker
Gly 971	-	linker
Ser 972	-	linker

C: 143 - 212 (UniProt: Q8TZY3)

PDB	External Database	Details
Val 213	-	expression tag
Asp 214	-	expression tag
Lys 215	-	expression tag
Leu 216	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	54003.4
Non-Polymers*	Number of molecules	2
	Total formula weight	384.2
All*	Total formula weight	54387.6

*Water molecules are not included.