3NFH

Crystal structure of tandem winged helix domain of RNA polymerase I subunit A49 (P4)

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	DNA-directed RNA polymerase I subunit RPA49	polymer	246	27717.2	2	UniProt (Q01080) Pfam (PF06870) In PDB	Saccharomyces cerevisiae (yeast)	A49, DNA-directed RNA polymerase I 49 kDa polypeptide
2		water	water		18.0	205	Chemie (HOH)

Sequence modifications

A, B: 154 - 399 (UniProt: Q01080)

PDB	External Database	Details
Met 154	Leu 154	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	55434.4
All*	Total formula weight	55434.4

*Water molecules are not included.