6NWH

Structures of the transcriptional regulator BgaR, a lactose sensor.

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Transcriptional regulator BgaR	polymer	182	21248.2	2	UniProt (Q8XMB9) Pfam (PF02311) In PDB	Clostridium perfringens (strain 13 / Type A)
2	C, D	beta-D-galactopyranose-(1-4)-beta-D-glucopyranose	branched		342.3	2	In PDB BIRD (PRD_900004) GlyTouCan (G84224TW)		beta-lactose
3	A, B	MERCURY (II) ION	non-polymer		200.6	9	Chemie (HG)
4	B	CHLORIDE ION	non-polymer		35.5	1	Chemie (CL)
5		water	water		18.0	211	Chemie (HOH)

Sequence modifications

A, B: 1 - 170 (UniProt: Q8XMB9)

PDB	External Database	Details
Leu 171	-	expression tag
Val 172	-	expression tag
Pro 173	-	expression tag
Arg 174	-	expression tag
Gly 175	-	expression tag
Ser 176	-	expression tag
His 177	-	expression tag
His 178	-	expression tag
His 179	-	expression tag
His 180	-	expression tag
His 181	-	expression tag
His 182	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	42496.4
Branched	Number of molecules	2
	Total formula weight	684.6
Non-Polymers*	Number of molecules	10
	Total formula weight	1840.8
All*	Total formula weight	45021.7

*Water molecules are not included.