3KZ3

A structure of a lambda repressor fragment mutant

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Repressor protein CI	polymer	80	8821.1	2	UniProt (P03034) Pfam (PF01381) In PDB	Enterobacteria phage lambda (Bacteriophage lambda)
2		water	water		18.0	282	Chemie (HOH)

Sequence modifications

A, B: 6 - 83 (UniProt: P03034)

PDB	External Database	Details
Ser 5	-	SEE REMARK 999
Trp 21	Tyr 23	engineered mutation
Tyr 32	Gln 34	engineered mutation
Ala 45	Gly 47	engineered mutation
Ala 47	Gly 49	engineered mutation
Arg 84	-	SEE REMARK 999

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	17642.2
All*	Total formula weight	17642.2

*Water molecules are not included.