3ZHI

N-terminal domain of the CI repressor from bacteriophage TP901-1

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	83	9526.1	1	UniProt (O48503) Pfam (PF01381) In PDB	LACTOCOCCUS PHAGE TP901-1	CI REPRESSOR
2		water	water		18.0	106	Chemie (HOH)

Sequence modifications

A: 2 - 74 (UniProt: O48503)

PDB	External Database	Details
Met 0	-	expression tag
Leu 1	-	expression tag
Arg 75	-	expression tag
Ser 76	-	expression tag
His 77	-	expression tag
His 78	-	expression tag
His 79	-	expression tag
His 80	-	expression tag
His 81	-	expression tag
His 82	-	expression tag
Ala 45	Gln 45	engineered mutation
Ala 48	Asn 48	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	9526.1
All*	Total formula weight	9526.1

*Water molecules are not included.