1L1M

SOLUTION STRUCTURE OF A DIMER OF LAC REPRESSOR DNA-BINDING DOMAIN COMPLEXED TO ITS NATURAL OPERATOR O1

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	C	5'-D(*GP*AP*AP*TP*TP*GP*TP*GP*AP*GP*CP*GP*GP*AP*TP*AP*AP*CP*AP*AP*TP*TP*T)-3'	polymer	23	7143.6	1
2	D	5'-D(*AP*AP*AP*TP*TP*GP*TP*TP*AP*TP*CP*CP*GP*CP*TP*CP*AP*CP*AP*AP*TP*TP*C)-3'	polymer	23	6974.5	1
3	A, B	Lactose operon repressor	polymer	62	6822.8	2	UniProt (P03023) Pfam (PF00356) In PDB	Escherichia coli

Sequence modifications

A, B: 1 - 62 (UniProt: P03023)

PDB	External Database	Details
Cys 52	Val 52	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	27763.7
All*	Total formula weight	27763.7

*Water molecules are not included.