3ZHM

N-terminal domain of the CI repressor from bacteriophage TP901-1 in complex with the OL2 operator half-site

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	CI	polymer	79	9105.5	1	UniProt (O48503) Pfam (PF01381) In PDB	LACTOCOCCUS PHAGE TP901-1	CI REPRESSOR
2	B	5'-D(*AP*GP*TP*TP*CP*AP*CP*GP*TP*TP*CP*AP*AP*GP *TP*GP*CP*A)-3'	polymer	18	5515.6	1		LACTOCOCCUS PHAGE TP901-1	OL2 OPERATOR HALF-SITE
3	C	5'-D(*AP*CP*GP*TP*GP*AP*AP*CP*TP*TP*GP*CP*AP*CP *TP*TP*GP*A)-3'	polymer	18	5515.6	1		LACTOCOCCUS PHAGE TP901-1	OL2 OPERATOR HALF-SITE
4		water	water		18.0	56	Chemie (HOH)

Sequence modifications

A: 2 - 74 (UniProt: O48503)

PDB	External Database	Details
Arg 75	-	expression tag
Ser 76	-	expression tag
His 77	-	expression tag
His 78	-	expression tag
His 79	-	expression tag
His 80	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	20136.7
All*	Total formula weight	20136.7

*Water molecules are not included.