6Y2Z

NG domain of human SRP54

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	Signal recognition particle 54 kDa protein	polymer	303	33373.6	2	UniProt (P61011) Pfam (PF02881) Pfam (PF00448)	Homo sapiens (Human)	SRP54
2	C, E (A, B)	PHOSPHATE ION	non-polymer		95.0	2	Chemie (PO4)
3	D, F (A, B)	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
4	G, H (A, B)	water	water		18.0	227	Chemie (HOH)

Sequence modifications

A, B: 1 - 296 (UniProt: P61011)

PDB	External Database	Details
Met -6	-	initiating methionine
Gly -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
His -1	-	expression tag
His 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	66747.1
Non-Polymers*	Number of molecules	4
	Total formula weight	238.6
All*	Total formula weight	66985.7

*Water molecules are not included.