6QE6

Structure of M. capricolum TrmK in complex with the natural cofactor product S-adenosyl-homocysteine (SAH)

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	tRNA (Adenine(22)-N(1))-methyltransferase	polymer	245	28510.6	2	UniProt (A0A0C3A3T0) Pfam (PF04816) In PDB	Mycoplasma capricolum subsp. capricolum
2	A, B	S-ADENOSYL-L-HOMOCYSTEINE	non-polymer		384.4	2	Chemie (SAH)
3		water	water		18.0	187	Chemie (HOH)

Sequence modifications

A, B: 1 - 225 (UniProt: A0A0C3A3T0)

PDB	External Database	Details
Met -19	-	initiating methionine
Gly -18	-	expression tag
Ser -17	-	expression tag
Ser -16	-	expression tag
His -15	-	expression tag
His -14	-	expression tag
His -13	-	expression tag
His -12	-	expression tag
His -11	-	expression tag
His -10	-	expression tag
Ser -9	-	expression tag
Ser -8	-	expression tag
Gly -7	-	expression tag
Leu -6	-	expression tag
Val -5	-	expression tag
Pro -4	-	expression tag
Arg -3	-	expression tag
Gly -2	-	expression tag
Ser -1	-	expression tag
His 0	-	expression tag
Ala 18	Thr 18	conflict

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	57021.1
Non-Polymers*	Number of molecules	2
	Total formula weight	768.8
All*	Total formula weight	57790.0

*Water molecules are not included.