4GEX

Structure of a stabilised ceSAS-6 dimer, second crystal form

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	Spindle assembly abnormal protein 6	polymer	170	19511.3	4	UniProt (O62479) Pfam (PF16531) In PDB	Caenorhabditis elegans (nematode)
2	A, C	SULFATE ION	non-polymer		96.1	3	Chemie (SO4)
3		water	water		18.0	18	Chemie (HOH)

Sequence modifications

A, B, C, D: 1 - 168 (UniProt: O62479)

PDB	External Database	Details
Gly -1	-	EXPRESSION TAG
Ser 0	-	EXPRESSION TAG
Glu 123	Ser 123	ENGINEERED MUTATION
Trp 154	Ile 154	ENGINEERED MUTATION

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	78045.2
Non-Polymers*	Number of molecules	3
	Total formula weight	288.2
All*	Total formula weight	78333.4

*Water molecules are not included.