3NYB

Structure and function of the polymerase core of TRAMP, a RNA surveillance complex

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Poly(A) RNA polymerase protein 2	polymer	323	36459.5	1	UniProt (P53632) Pfam (PF01909) Pfam (PF03828) In PDB	Saccharomyces cerevisiae (brewer's yeast lager beer yeast yeast)	DNA polymerase sigma, DNA polymerase kappa, Topoisomerase 1-related protein TRF4
2	B	Protein AIR2	polymer	83	9399.8	1	UniProt (Q12476) Pfam (PF21759) Pfam (PF00098) In PDB	Saccharomyces cerevisiae (brewer's yeast lager beer yeast yeast)	Arginine methyltransferase-interacting RING finger protein 2
3	B	ZINC ION	non-polymer		65.4	2	Chemie (ZN)
4		water	water		18.0	58	Chemie (HOH)

Sequence modifications

A: 161 - 481 (UniProt: P53632)

PDB	External Database	Details
Gly 159	-	expression tag
Ser 160	-	expression tag
Ala 293	Asp 293	engineered mutation

B: 118 - 198 (UniProt: Q12476)

PDB	External Database	Details
Gly 116	-	expression tag
Ser 117	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	45859.2
Non-Polymers*	Number of molecules	2
	Total formula weight	130.8
All*	Total formula weight	45990.0

*Water molecules are not included.