8FQ9

Crystal structure of a ligand-bound cation-site mutant D55C of a melibiose transporter

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Melibiose permease	polymer	485	54092.5	1	UniProt (P30878) Pfam (PF13347) In PDB	Salmonella enterica subsp. enterica serovar Typhimurium	Melibiose carrier,Melibiose transporter,Melibiose/cation symporter,Na+ (Li+)/melibiose symporter,Thiomethylgalactoside permease II
2	A	PENTAETHYLENE GLYCOL	non-polymer		238.3	1	Chemie (1PE)
3	A	dodecyl 6-O-alpha-D-galactopyranosyl-beta-D-glucopyranoside	non-polymer		510.6	1	Chemie (LMO)

Sequence modifications

A: 2 - 476 (UniProt: P30878)

PDB	External Database	Details
Met 5	Leu 5	conflict
Cys 55	Asp 55	engineered mutation
His 477	-	expression tag
His 478	-	expression tag
His 479	-	expression tag
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Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	54092.5
Non-Polymers*	Number of molecules	2
	Total formula weight	748.9
All*	Total formula weight	54841.4

*Water molecules are not included.