4KQ0

Crystal structure of double-helical CGG-repetitive RNA 19mer complexed with RSS p19

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, D	RNA silencing suppressor p19	polymer	135	15407.2	2	UniProt (P69517) Pfam (PF03220) In PDB	Tomato bushy stunt virus (TBSV)	19 kDa symptom severity modulator
2	B, E	5'-R(P*GP*GP*CP*GP*GP*CP*GP*GP*CP*GP*GP*CP*GP*GP*CP*GP*GP*CP*C)-3'	polymer	19	6233.8	2
3	A, D	SULFATE ION	non-polymer		96.1	6	Chemie (SO4)
4		water	water		18.0	267	Chemie (HOH)

Sequence modifications

A, D: 5 - 135 (UniProt: P69517)

PDB	External Database	Details
Gly 1	-	expression tag
Ser 2	-	expression tag
His 3	-	expression tag
Met 4	-	expression tag
Met 122	Leu 144	engineered mutation
Met 125	Leu 147	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	43281.9
Non-Polymers*	Number of molecules	6
	Total formula weight	576.4
All*	Total formula weight	43858.3

*Water molecules are not included.