2PXU

Variant 16 of Ribonucleoprotein Core of the E. Coli Signal Recognition Particle

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	B	4.5 S RNA	polymer	49	15884.5	1
2	A	Signal recognition particle protein	polymer	102	12336.6	1	UniProt (P0AGD7) Pfam (PF02978) In PDB	Escherichia coli	Fifty-four homolog, p48
3	B	COBALT HEXAMMINE(III)	non-polymer		161.1	7	Chemie (NCO)

Sequence modifications

A: 1 - 82 (UniProt: P0AGD7)

PDB	External Database	Details
Mse 9	Met 344	modified residue
Mse 9	Met 347	modified residue
Mse 9	Met 351	modified residue
Mse 9	Met 357	modified residue
Mse 10	Met 368	modified residue
Mse 28	Met 376	modified residue
Mse 35	Met 383	modified residue
Mse 37	Met 385	modified residue
Ser 58	Cys 406	engineered mutation
Mse 60	Met 408	modified residue
Mse 75	Met 423	modified residue
Mse 78	Met 426	modified residue
Mse 79	Met 427	modified residue
Mse 82	Met 430	modified residue

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	28221.2
Non-Polymers*	Number of molecules	7
	Total formula weight	1127.8
All*	Total formula weight	29349.0

*Water molecules are not included.