4ILI

Crystal structure of an Aar2p S253E phosphomimetic mutant protein

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	A1 cistron-splicing factor AAR2	polymer	313	37049.7	2	UniProt (P32357) Pfam (PF20981) Pfam (PF05282)	Saccharomyces cerevisiae (Baker's yeast)

Sequence modifications

A, B: 1 - 318 (UniProt: P32357)

PDB	External Database	Details
Ser 153	Leu 153	engineered mutation
Ser 154	Lys 154	engineered mutation
-	Leu 157	deletion
-	Gln 158	deletion
-	Lys 159	deletion
-	Ala 160	deletion
-	Gly 161	deletion
-	Lys 163	deletion
-	Met 164	deletion
-	Glu 165	deletion
-	Ala 166	deletion
-	Lys 167	deletion
-	Asn 168	deletion
-	Glu 169	deletion
-	Asp 170	deletion
Glu 253	Ser 253	engineered mutation
Leu 319	-	expression tag
Glu 320	-	expression tag
His 321	-	expression tag
His 322	-	expression tag
His 323	-	expression tag
His 324	-	expression tag
His 325	-	expression tag
His 326	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	74099.3
All*	Total formula weight	74099.3

*Water molecules are not included.