3KKE

Crystal structure of a LacI family transcriptional regulator from Mycobacterium smegmatis

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	LacI family Transcriptional regulator	polymer	303	32021.1	4	UniProt (A0QPR6) Pfam (PF13377) In PDB	Mycobacterium smegmatis str. MC2 155
2	A, B, C, D	ACETATE ION	non-polymer		59.0	5	Chemie (ACT)
3		water	water		18.0	127	Chemie (HOH)

Sequence modifications

A, B, C, D: 50 - 341 (UniProt: A0QPR6)

PDB	External Database	Details
Met 47	-	expression tag
Ser 48	-	expression tag
Leu 49	-	expression tag
Glu 342	-	expression tag
Gly 343	-	expression tag
His 344	-	expression tag
His 345	-	expression tag
His 346	-	expression tag
His 347	-	expression tag
His 348	-	expression tag
His 349	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	128084.4
Non-Polymers*	Number of molecules	5
	Total formula weight	295.2
All*	Total formula weight	128379.6

*Water molecules are not included.