4M64

3D crystal structure of Na+/melibiose symporter of Salmonella typhimurium

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	Melibiose carrier protein	polymer	486	54235.6	4	UniProt (P30878) Pfam (PF13347) In PDB	Salmonella typhimurium	Melibiose permease, Melibiose transporter, Na+ (Li+)/melibiose symporter, Thiomethylgalactoside permease II

Sequence modifications

A, B, C, D: 1 - 476 (UniProt: P30878)

PDB	External Database	Details
Met 5	Leu 5	engineered mutation
His 477	-	expression tag
His 478	-	expression tag
His 479	-	expression tag
His 480	-	expression tag
His 481	-	expression tag
His 482	-	expression tag
His 483	-	expression tag
His 484	-	expression tag
His 485	-	expression tag
His 486	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	216942.5
All*	Total formula weight	216942.5

*Water molecules are not included.