2I38

Solution structure of the RRM of SRp20

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Fusion protein consists of immunoglobulin G-Binding Protein G and Splicing factor, arginine/serine-rich 3	polymer	150	16846.7	1	UniProt (P19909) UniProt (P84103) Pfam (PF00076) In PDB	Homo sapiens (human)	Pre-mRNA-splicing factor SRP20

Sequence modifications

A: 3 - 56 (UniProt: P19909)

PDB	External Database	Details
Met 1	-	cloning artifact
Gln 2	-	cloning artifact
Gly 57	-	cloning artifact
Ser 58	-	cloning artifact

A: 65 - 150 (UniProt: P84103)

PDB	External Database	Details
His 59	-	expression tag
His 60	-	expression tag
His 61	-	expression tag
His 62	-	expression tag
His 63	-	expression tag
His 64	-	expression tag
Asp 129	Glu 65	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	16846.7
All*	Total formula weight	16846.7

*Water molecules are not included.