3KTW

Crystal structure of the SRP19/S-domain SRP RNA complex of Sulfolobus solfataricus

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)	SRP RNA	polymer	96	31165.6	2	GenBank (X17239.1)	Sulfolobus solfataricus
2	C, D (A, B)	Signal recognition particle 19 kDa protein	polymer	109	12939.1	2	UniProt (Q980W2) Pfam (PF01922)	Sulfolobus solfataricus	SRP19
3	E, F, J, K (C, D)	POTASSIUM ION	non-polymer		39.1	4	Chemie (K)
4	G, H, I, L, M... (C, D, A, B)	MAGNESIUM ION	non-polymer		24.3	6	Chemie (MG)

Sequence modifications

A, B: 2 - 102 (UniProt: Q980W2)

PDB	External Database	Details
Met -6	-	insertion
Gly -5	-	insertion
His -4	-	insertion
His -3	-	insertion
His -2	-	insertion
His -1	-	insertion
His 0	-	insertion
His 1	-	insertion

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	88209.4
Non-Polymers*	Number of molecules	10
	Total formula weight	302.2
All*	Total formula weight	88511.6

*Water molecules are not included.