9DSM

Cryo-EM structure of SSNA-1(R18E/R20E/Q98E) filaments

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, AA, B, BA, C... (A, B, C, D, E...)	Sjogren's Syndrome Nuclear Autoantigen	polymer	124	14666.3	32	UniProt (Q5F4U5)	Caenorhabditis elegans

Sequence modifications

A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z, a, b, c, d, e, f: 1 - 105 (UniProt: Q5F4U5)

PDB	External Database	Details
Met -18	-	initiating methionine
Gly -17	-	expression tag
Lys -16	-	expression tag
His -15	-	expression tag
His -14	-	expression tag
His -13	-	expression tag
His -12	-	expression tag
His -11	-	expression tag
His -10	-	expression tag
Gly -9	-	expression tag
Ser -8	-	expression tag
Leu -7	-	expression tag
Glu -6	-	expression tag
Val -5	-	expression tag
Leu -4	-	expression tag
Phe -3	-	expression tag
Gln -2	-	expression tag
Gly -1	-	expression tag
Pro 0	-	expression tag
Glu 18	Arg 18	engineered mutation
Glu 20	Arg 20	engineered mutation
Glu 98	Gln 98	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	32
	Total formula weight	469320.9
All*	Total formula weight	469320.9

*Water molecules are not included.