3IVK

Crystal Structure of the Catalytic Core of an RNA Polymerase Ribozyme Complexed with an Antigen Binding Antibody Fragment

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C (L, B)	Fab light chain	polymer	213	23162.6	2		Mus musculus
2	B, D (H, A)	Fab heavy chain	polymer	224	23749.5	2		Mus musculus
3	E, F (M, C)	class I ligase product	polymer	128	41299.7	2
4	G, J (L, B)	CADMIUM ION	non-polymer		112.4	2	Chemie (CD)
5	AA, BA, CA, DA, EA... (M, C, L)	MAGNESIUM ION	non-polymer		24.3	33	Chemie (MG)
6	I, K (L, B)	CHLORIDE ION	non-polymer		35.5	2	Chemie (CL)
7	RA, SA, TA, UA (H, A, M, C)	water	water		18.0	104	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	176423.7
Non-Polymers*	Number of molecules	37
	Total formula weight	1097.8
All*	Total formula weight	177521.5

*Water molecules are not included.