9CH2

Structure of the alpha-N-methyltransferase (SonM) and RiPP precursor (SonA-L63D) heteromeric complex

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	TP-methylase family protein	polymer	262	28955.2	1	UniProt (Q8EGW3) Pfam (PF00590)	Shewanella oneidensis
2	B, D (B, D)	Extradiol ring-cleavage dioxygenase LigAB LigA subunit domain-containing protein	polymer	78	8784.6	2	UniProt (Q8EGW2)	Shewanella oneidensis
3	C (C)	TP-methylase family protein	polymer	263	29068.3	1	UniProt (Q8EGW3) Pfam (PF00590)	Shewanella oneidensis
4	E (A)	S-ADENOSYL-L-HOMOCYSTEINE	non-polymer		384.4	1	Chemie (SAH)	Shewanella oneidensis
5	F (C)	ZINC ION	non-polymer		65.4	1	Chemie (ZN)
6	G, H, I, J (A, B, C, D)	water	water		18.0	127	Chemie (HOH)

Sequence modifications

A: 1 - 261 (UniProt: Q8EGW3)

PDB	External Database	Details
Gly 262	-	expression tag

B, D: 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
Asp 63	Leu 63	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	75592.7
Non-Polymers*	Number of molecules	2
	Total formula weight	449.8
All*	Total formula weight	76042.5

*Water molecules are not included.