7AG4

Crystal structure of active site mutant of SQ Isomerase (YihS-H248A) from Salmonella enterica in complex with sulfofructose (SF)

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... (A, B, D, F, C...)	Sulfoquinovose isomerase	polymer	433	49689.7	6	UniProt (Q8ZKT7) Pfam (PF07221)	Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)	SQ isomerase
2	G, H, I, J, K... (A, B, D, F, C...)	6-deoxy-6-sulfo-D-fructose	non-polymer		244.2	6	Chemie (RB8)
3	M, N, O, P, Q... (A, B, D, F, C...)	water	water		18.0	686	Chemie (HOH)

Sequence modifications

A, B, D, F, C, E: 1 - 413 (UniProt: Q8ZKT7)

PDB	External Database	Details
Met -19	-	initiating methionine
Gly -18	-	expression tag
Ser -17	-	expression tag
Ser -16	-	expression tag
His -15	-	expression tag
His -14	-	expression tag
His -13	-	expression tag
His -12	-	expression tag
His -11	-	expression tag
His -10	-	expression tag
Ser -9	-	expression tag
Ser -8	-	expression tag
Gly -7	-	expression tag
Leu -6	-	expression tag
Val -5	-	expression tag
Pro -4	-	expression tag
Arg -3	-	expression tag
Gly -2	-	expression tag
Ser -1	-	expression tag
His 0	-	expression tag
Ala 248	His 248	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	298138.4
Non-Polymers*	Number of molecules	6
	Total formula weight	1465.3
All*	Total formula weight	299603.7

*Water molecules are not included.