8H9D

Crystal structure of Cas12a protein

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (B)	Cas12A	polymer	1206	141200.6	1		Lachnospiraceae bacterium
2	B (A)	Cas12A	polymer	1207	141313.8	1		Lachnospiraceae bacterium
3	C (G)	RNA (5'-R(P*AP*AP*UP*UP*UP*CP*UP*AP*CP*UP*AP*AP*GP*UP*GP*UP*AP*GP*AP*UP*C)-3')	polymer	21	6660.0	1		Lachnospiraceae bacterium
4	D (A)	SULFATE ION	non-polymer		96.1	1	Chemie (SO4)
5	E, F (A, G)	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
6	G (G)	water	water		18.0	6	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	289174.3
Non-Polymers*	Number of molecules	3
	Total formula weight	144.7
All*	Total formula weight	289319.0

*Water molecules are not included.