3KH2

Crystal structure of the P1 bacteriophage Doc toxin (F68S) in complex with the Phd antitoxin (L17M/V39A). Northeast Structural Genomics targets ER385-ER386

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)	Death on curing protein	polymer	134	14708.1	4	UniProt (Q06259) Pfam (PF02661)	Bacteriophage P1
2	E, F, G, H (E, F, G, H)	Prevent host death protein	polymer	73	8226.9	4	UniProt (Q06253) Pfam (PF02604)	Bacteriophage P1
3	I (A)	CHLORIDE ION	non-polymer		35.5	1	Chemie (CL)
4	J, M (A, B)	2-HYDROXYETHYL DISULFIDE	non-polymer		154.3	2	Chemie (HED)
5	K, L, Q (B, H)	GLYCEROL	non-polymer		92.1	3	Chemie (GOL)
6	N, O, P, R (E, F, G, H)	PHOSPHATE ION	non-polymer		95.0	4	Chemie (PO4)
7	S, T, U, V, W... (A, B, C, D, E...)	water	water		18.0	93	Chemie (HOH)

Sequence modifications

A, B, C, D: 2 - 126 (UniProt: Q06259)

PDB	External Database	Details
Mse 1	-	initiating methionine
Ser 68	Phe 68	engineered mutation
Leu 127	-	expression tag
Glu 128	-	expression tag
His 129	-	expression tag
His 130	-	expression tag
His 131	-	expression tag
His 132	-	expression tag
His 133	-	expression tag
His 134	-	expression tag

E, F, G, H: 1 - 73 (UniProt: Q06253)

PDB	External Database	Details
Mse 17	Leu 17	engineered mutation
Ala 39	Val 39	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	8
	Total formula weight	91739.8
Non-Polymers*	Number of molecules	10
	Total formula weight	1000.1
All*	Total formula weight	92739.9

*Water molecules are not included.