3BF0

Crystal structure of Escherichia coli Signal peptide peptidase (SppA), Native crystals

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 (A, B, C, D)	Protease 4	polymer	593	63919.7	4	UniProt (P08395) Pfam (PF01343)	Escherichia coli	Protease IV, Endopeptidase IV, Signal peptide peptidase
2	E, F, G, H (A, B, C, D)	water	water		18.0	488	Chemie (HOH)

Sequence modifications

A, B, C, D: 47 - 618 (UniProt: P08395)

PDB	External Database	Details
Met 26	-	expression tag
Gly 27	-	expression tag
Ser 28	-	expression tag
Ser 29	-	expression tag
His 30	-	expression tag
His 31	-	expression tag
His 32	-	expression tag
His 33	-	expression tag
His 34	-	expression tag
His 35	-	expression tag
Ser 36	-	expression tag
Ser 37	-	expression tag
Gly 38	-	expression tag
Leu 39	-	expression tag
Val 40	-	expression tag
Pro 41	-	expression tag
Arg 42	-	expression tag
Gly 43	-	expression tag
Ser 44	-	expression tag
His 45	-	expression tag
Met 46	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	255678.6
All*	Total formula weight	255678.6

*Water molecules are not included.