8T1T

Structure of the alpha-N-methyltransferase (SonM) and RiPP precursor (SonA with QSY deletion) heteromeric complex (bound to SAM)

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C	Alpha-N-methyltransferase (SonM)	polymer	263	29068.3	2	UniProt (Q8EGW3) Pfam (PF00590) In PDB	Shewanella oneidensis	TP-methylase family protein
2	B, D	RiPP precursor (SonA)	polymer	75	8404.3	2	UniProt (Q8EGW2) Pfam (PF07746) In PDB	Shewanella oneidensis	Extradiol ring-cleavage dioxygenase LigAB LigA subunit domain-containing protein
3	A, C	S-ADENOSYLMETHIONINE	non-polymer		398.4	2	Chemie (SAM)
4	C	ZINC ION	non-polymer		65.4	1	Chemie (ZN)
5		water	water		18.0	488	Chemie (HOH)

Sequence modifications

B, D: 8 - 75 (UniProt: Q8EGW2)

PDB	External Database	Details
Met 1	-	initiating methionine
His 2	-	expression tag
His 3	-	expression tag
His 4	-	expression tag
His 5	-	expression tag
His 6	-	expression tag
His 7	-	expression tag
-	Gln 60	deletion
-	Ser 61	deletion
-	Tyr 62	deletion

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	74945.2
Non-Polymers*	Number of molecules	3
	Total formula weight	862.3
All*	Total formula weight	75807.5

*Water molecules are not included.