7DOA

Crystal structure of Catabolite repressor acivator from E. coli in complex with HEPES

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	Catabolite repressor/activator	polymer	357	40811.3	2	UniProt (A0A454A0X5) Pfam (PF00356) Pfam (PF00532)	Escherichia coli O6:K15:H31 (strain 536 / UPEC)	Fructose repressor
2	C, D, E (A, B)	4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID	non-polymer		238.3	3	Chemie (EPE)
3	F (B)	GLYCEROL	non-polymer		92.1	1	Chemie (GOL)
4	G, H (A, B)	water	water		18.0	63	Chemie (HOH)

Sequence modifications

A, B: 1 - 334 (UniProt: A0A454A0X5)

PDB	External Database	Details
His -22	-	expression tag
His -21	-	expression tag
His -20	-	expression tag
His -19	-	expression tag
His -18	-	expression tag
His -17	-	expression tag
Asp -16	-	expression tag
Tyr -15	-	expression tag
Asp -14	-	expression tag
Ile -13	-	expression tag
Pro -12	-	expression tag
Thr -11	-	expression tag
Thr -10	-	expression tag
Glu -9	-	expression tag
Asn -8	-	expression tag
Leu -7	-	expression tag
Tyr -6	-	expression tag
Phe -5	-	expression tag
Gln -4	-	expression tag
Gly -3	-	expression tag
Ala -2	-	expression tag
Met -1	-	expression tag
Ala 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	81622.6
Non-Polymers*	Number of molecules	4
	Total formula weight	807.0
All*	Total formula weight	82429.6

*Water molecules are not included.