6FSB

Influenza B/Memphis/13/03 endonuclease with I38T mutation

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Polymerase acidic protein	polymer	205	23506.6	2	UniProt (Q5V8Z9) In PDB	Influenza B virus (B/Memphis/13/2003)	RNA-directed RNA polymerase subunit P2
2	A	MANGANESE (II) ION	non-polymer		54.9	2	Chemie (MN)
3	B	MAGNESIUM ION	non-polymer		24.3	1	Chemie (MG)
4		water	water		18.0	125	Chemie (HOH)

Sequence modifications

A, B: 1 - 197 (UniProt: Q5V8Z9)

PDB	External Database	Details
Gly -7	-	expression tag
Ala -6	-	expression tag
Met -5	-	expression tag
Gly -4	-	expression tag
Ser -3	-	expression tag
Gly -2	-	expression tag
Met -1	-	expression tag
Ala 0	-	expression tag
Thr 38	Ile 38	engineered mutation
Ser 60	Ala 60	conflict

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	47013.2
Non-Polymers*	Number of molecules	3
	Total formula weight	134.2
All*	Total formula weight	47147.4

*Water molecules are not included.