2N3O

Structure of PTB RRM1(41-163) bound to an RNA stemloop containing a structured loop derived from viral internal ribosomal entry site RNA

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Polypyrimidine tract-binding protein 1	polymer	123	13375.2	1	UniProt (P26599) Pfam (PF13893)	Homo sapiens (human)	PTB, 57 kDa RNA-binding protein PPTB-1, Heterogeneous nuclear ribonucleoprotein I, hnRNP I
2	B (B)	RNA (5'-R(*GP*GP*GP*AP*CP*CP*UP*GP*GP*UP*CP*UP*UP*UP*CP*CP*AP*GP*GP*UP*CP*CP*C)-3')	polymer	23	7308.3	1		synthetic construct

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	20683.5
All*	Total formula weight	20683.5

*Water molecules are not included.