8FCX

Cryo-EM structure of TnsC oligomer in type I-B CAST system

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D, E (R, S, T, U, V)	TnsC	polymer	383	43521.9	5	UniProt (A0A235IFM2) Pfam (PF13401)	Nostoc sp. 'Peltigera membranacea cyanobiont' 210A
2	F, H, J, L, N (R, S, T, U, V)	ADENOSINE-5'-TRIPHOSPHATE	non-polymer		507.2	5	Chemie (ATP)
3	G, I, K, M, O (R, S, T, U, V)	MAGNESIUM ION	non-polymer		24.3	5	Chemie (MG)

Contents of the asymmetric unit

Polymers	Number of chains	5
	Total formula weight	217609.7
Non-Polymers*	Number of molecules	10
	Total formula weight	2657.4
All*	Total formula weight	220267.1

*Water molecules are not included.