2IKF

Terminal uridylyl transferase 4 from Trypanosoma brucei with bound UTP

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)	RNA uridylyl transferase	polymer	353	39879.4	2	UniProt (Q381M1) Pfam (PF22600) Pfam (PF03828)	Trypanosoma brucei
2	C (A)	MAGNESIUM ION	non-polymer		24.3	1	Chemie (MG)
3	D (A)	URIDINE 5'-TRIPHOSPHATE	non-polymer		484.1	1	Chemie (UTP)
4	E, F (A, B)	water	water		18.0	216	Chemie (HOH)

Sequence modifications

A, B: 1 - 333 (UniProt: Q381M1)

PDB	External Database	Details
Met -19	-	cloning artifact
Gly -18	-	cloning artifact
Ser -17	-	cloning artifact
Ser -16	-	cloning artifact
His -15	-	expression tag
His -14	-	expression tag
His -13	-	expression tag
His -12	-	expression tag
His -11	-	expression tag
His -10	-	expression tag
Ser -9	-	cloning artifact
Ser -8	-	cloning artifact
Gly -7	-	cloning artifact
Leu -6	-	cloning artifact
Val -5	-	cloning artifact
Pro -4	-	cloning artifact
Arg -3	-	cloning artifact
Gly -2	-	cloning artifact
Ser -1	-	cloning artifact
His 0	-	cloning artifact

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	79758.8
Non-Polymers*	Number of molecules	2
	Total formula weight	508.4
All*	Total formula weight	80267.2

*Water molecules are not included.