4DF3

Crystal Structure of Aeropyrum pernix fibrillarin in complex with natively bound S-adenosyl-L-methionine at 1.7A

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)	Fibrillarin-like rRNA/tRNA 2'-O-methyltransferase	polymer	233	26698.8	2	UniProt (Q9Y9U3) Pfam (PF01269)	Aeropyrum pernix
2	C, D (A, B)	S-ADENOSYLMETHIONINE	non-polymer		398.4	2	Chemie (SAM)
3	E, F (A, B)	water	water		18.0	334	Chemie (HOH)

Sequence modifications

A, B: 1 - 233 (UniProt: Q9Y9U3)

PDB	External Database	Details
Ser 8	Arg 8	engineered mutation
Arg 9	Glu 9	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	53397.7
Non-Polymers*	Number of molecules	2
	Total formula weight	796.9
All*	Total formula weight	54194.5

*Water molecules are not included.