9CH7

Structure of the alpha-N-methyltransferase (SonM) and RiPP precursor (SonA-Y62A) heteromeric complex (bound to SAH - structure 1)

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C, E, G (A, C, E, G)	TP-methylase family protein	polymer	263	29068.3	4	UniProt (Q8EGW3) Pfam (PF00590)	Shewanella oneidensis
2	B, D, F, H (B, D, F, H)	Extradiol ring-cleavage dioxygenase LigAB LigA subunit domain-containing protein	polymer	78	8690.6	4	UniProt (Q8EGW2)	Shewanella oneidensis
3	I, J (C, E)	S-ADENOSYL-L-HOMOCYSTEINE	non-polymer		384.4	2	Chemie (SAH)	Shewanella oneidensis
4	K, L, M, N, O... (A, B, C, D, E...)	water	water		18.0	253	Chemie (HOH)

Sequence modifications

B, D, F, H: 1 - 71 (UniProt: Q8EGW2)

PDB	External Database	Details
Met -6	-	initiating methionine
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
His -1	-	expression tag
His 0	-	expression tag
Ala 62	Tyr 62	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	8
	Total formula weight	151035.6
Non-Polymers*	Number of molecules	2
	Total formula weight	768.8
All*	Total formula weight	151804.4

*Water molecules are not included.