4TV0

Drosophila stem-loop binding protein complexed with histone mRNA stem-loop, Selenomethionine derivative

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Histone RNA hairpin-binding protein	polymer	93	11010.6	1	UniProt (Q9VAN6) Pfam (PF15247) In PDB	Drosophila melanogaster (Fruit fly)	Histone stem-loop-binding protein
2	B	RNA (26-MER)	polymer	26	8294.0	1		synthetic construct
3	B	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)

Sequence modifications

A: 184 - 267 (UniProt: Q9VAN6)

PDB	External Database	Details
Mse 245	Leu 245	engineered mutation
Mse 253	Leu 253	engineered mutation
Asp 268	-	expression tag
Ser 269	-	expression tag
Asn 270	-	expression tag
Ser 271	-	expression tag
Asp 272	-	expression tag
Ser 273	-	expression tag
Asp 274	-	expression tag
Ser 275	-	expression tag
Asp 276	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	19304.6
Non-Polymers*	Number of molecules	2
	Total formula weight	80.2
All*	Total formula weight	19384.8

*Water molecules are not included.