4MO1

Crystal structure of antitermination protein Q from bacteriophage lambda. Northeast Structural Genomics Consortium target OR18A.

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Antitermination protein Q	polymer	178	19974.1	2	UniProt (P03047) Pfam (PF03589) In PDB	Enterobacteria phage lambda
2	A, B	ZINC ION	non-polymer		65.4	2	Chemie (ZN)
3	A, B	BROMIDE ION	non-polymer		79.9	3	Chemie (BR)
4	A, B	CHLORIDE ION	non-polymer		35.5	3	Chemie (CL)
5		water	water		18.0	162	Chemie (HOH)

Sequence modifications

A, B: 38 - 207 (UniProt: P03047)

PDB	External Database	Details
Leu 208	-	EXPRESSION TAG
Glu 209	-	EXPRESSION TAG
His 210	-	EXPRESSION TAG
His 211	-	EXPRESSION TAG
His 212	-	EXPRESSION TAG
His 213	-	EXPRESSION TAG
His 214	-	EXPRESSION TAG
His 215	-	EXPRESSION TAG

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	39948.1
Non-Polymers*	Number of molecules	8
	Total formula weight	476.9
All*	Total formula weight	40425.0

*Water molecules are not included.