2B2D

RNA stemloop operator from bacteriophage QBETA complexed with an N87S,E89K mutant MS2 capsid

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	R, S	5'-R(*AP*UP*GP*CP*AP*UP*GP*UP*CP*UP*AP*AP*GP*AP*CP*AP*GP*CP*AP*U)-3'	polymer	20	6391.9	2
2	A, B, C	Coat protein	polymer	129	13711.5	3	UniProt (P03612) Pfam (PF01819) In PDB	Enterobacterio phage MS2
3		water	water		18.0	119	Chemie (HOH)

Sequence modifications

A, B, C: 1 - 129 (UniProt: P03612)

PDB	External Database	Details
Ser 87	Asn 87	engineered mutation
Lys 89	Glu 89	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	5
	Total formula weight	53918.2
All*	Total formula weight	53918.2

*Water molecules are not included.