4ZA6

Structure of the R. erythropolis transcriptional repressor QsdR from TetR family

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	TetR family transcriptional regulator	polymer	192	21300.5	2	UniProt (A0A0C2W9F0) Pfam (PF18598) In PDB	Rhodococcus erythropolis	QsdR
2	A, B	(4S)-2-METHYL-2,4-PENTANEDIOL	non-polymer		118.2	6	Chemie (MPD)
3	A, B	ACETATE ION	non-polymer		59.0	2	Chemie (ACT)
4	A, B	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
5		water	water		18.0	317	Chemie (HOH)

Sequence modifications

A, B: 1 - 186 (UniProt: A0A0C2W9F0)

PDB	External Database	Details
His 187	-	expression tag
His 188	-	expression tag
His 189	-	expression tag
His 190	-	expression tag
His 191	-	expression tag
His 192	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	42601.1
Non-Polymers*	Number of molecules	10
	Total formula weight	907.3
All*	Total formula weight	43508.4

*Water molecules are not included.