4ZLX

N-terminal DNA binding domain of the antitoxin Phd from phage P1

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)	Antitoxin phd	polymer	53	6169.8	2	UniProt (Q06253) Pfam (PF02604)	Enterobacteria phage P1	Addiction protein pdh,Prevent host death protein
2	C, D, E, F, G (B)	ACETATE ION	non-polymer		59.0	5	Chemie (ACT)
3	H, I (A, B)	water	water		18.0	55	Chemie (HOH)

Sequence modifications

A, B: 1 - 45 (UniProt: Q06253)

PDB	External Database	Details
Glu 46	-	expression tag
Trp 47	-	expression tag
His 48	-	expression tag
His 49	-	expression tag
His 50	-	expression tag
His 51	-	expression tag
His 52	-	expression tag
His 53	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	12339.6
Non-Polymers*	Number of molecules	5
	Total formula weight	295.2
All*	Total formula weight	12634.9

*Water molecules are not included.