2BNW

Structural basis for cooperative binding of Ribbon-Helix-Helix Omega repressor to direct DNA heptad repeats

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D (A, B, C, D)	ORF OMEGA	polymer	53	6137.2	4	UniProt (Q57468) Pfam (PF07764)	STREPTOCOCCUS PYOGENES (STREPTOCOCCUS)	OMEGA TRANSCRIPTIONAL REPRESSOR, ORF OMEGA'
2	E, G (E, G)	5'-D(*GP*AP*AP*TP*CP*AP*CP*AP*AP*AP *TP*CP*AP*CP*AP*AP*GP*C)-3'	polymer	18	5486.6	2		synthetic construct
3	F, H (F, H)	5'-D(*CP*TP*TP*GP*TP*GP*AP*TP*TP*TP *GP*TP*GP*AP*TP*TP*CP*G)-3'	polymer	18	5543.6	2		synthetic construct
4	I, J, K, L, M... (A, B, C, D, E...)	water	water		18.0	79	Chemie (HOH)

Sequence modifications

A, B, C, D: 19 - 19 (PDB: 2BNW)
A, B, C, D: 20 - 71 (UniProt: Q57468)

Contents of the asymmetric unit

Polymers	Number of chains	8
	Total formula weight	46609.3
All*	Total formula weight	46609.3

*Water molecules are not included.