2I91

60kDa Ro autoantigen in complex with a fragment of misfolded RNA

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C (C, E)	5'-R(*GP*CP*CP*UP*AP*CP*CP*C)-3'	polymer	8	2461.5	2
2	B, D (D, F)	5'-R(*C*GP*GP*UP*AP*GP*GP*CP*UP*UP*UP*UP*CP*AP*A)-3'	polymer	15	4769.9	2
3	E, F (A, B)	60 kDa SS-A/Ro ribonucleoprotein	polymer	538	60772.4	2	UniProt (P42700) Pfam (PF05731)	Xenopus laevis (African clawed frog)	60 kDa Ro protein, 60 kDa ribonucleoprotein Ro, RoRNP, TROVE domain family member 2
4	G, I (A, B)	ACETATE ION	non-polymer		59.0	2	Chemie (ACT)
5	H, J (A, B)	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
6	K, L, M, N, O... (C, D, E, F, A...)	water	water		18.0	561	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	136007.5
Non-Polymers*	Number of molecules	4
	Total formula weight	166.7
All*	Total formula weight	136174.2

*Water molecules are not included.