6PII

The evolving story of AtzT, a periplasmic binding protein

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 (A, B, C, D)	Atrazine periplasmic binding protein	polymer	355	38291.7	4	UniProt (Q936X6)	Pseudomonas sp. (strain ADP)
2	E, H, K, N (A, B, C, D)	GUANINE	non-polymer		151.1	4	Chemie (GUN)
3	F, I, L, O (A, B, C, D)	ETHYL MERCURY ION	non-polymer		229.7	4	Chemie (EMC)
4	G, J (A, B)	PHOSPHATE ION	non-polymer		95.0	2	Chemie (PO4)
5	M (C)	CALCIUM ION	non-polymer		40.1	1	Chemie (CA)
6	P, Q, R, S (A, B, C, D)	water	water		18.0	648	Chemie (HOH)

Sequence modifications

A, B, C, D: 27 - 360 (UniProt: Q936X6)

PDB	External Database	Details
Met 6	-	initiating methionine
Gly 7	-	expression tag
Ser 8	-	expression tag
Ser 9	-	expression tag
His 10	-	expression tag
His 11	-	expression tag
His 12	-	expression tag
His 13	-	expression tag
His 14	-	expression tag
His 15	-	expression tag
Ser 16	-	expression tag
Ser 17	-	expression tag
Gly 18	-	expression tag
Leu 19	-	expression tag
Val 20	-	expression tag
Pro 21	-	expression tag
Arg 22	-	expression tag
Gly 23	-	expression tag
Ser 24	-	expression tag
His 25	-	expression tag
Met 26	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	153166.8
Non-Polymers*	Number of molecules	11
	Total formula weight	1753.1
All*	Total formula weight	154919.9

*Water molecules are not included.