4NV4

1.8 Angstrom Crystal Structure of Signal Peptidase I from Bacillus anthracis.

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 peptidase I	polymer	176	20254.8	2	UniProt (Q81TW3) Pfam (PF10502) UniProt (by SIFTS) (A0A6L7HM74)	Bacillus anthracis (anthrax anthrax bacterium)
2	C, F, G (A, B)	TETRAETHYLENE GLYCOL	non-polymer		194.2	3	Chemie (PG4)
3	D, H (A, B)	DI(HYDROXYETHYL)ETHER	non-polymer		106.1	2	Chemie (PEG)
4	E, I (A, B)	1,2-ETHANEDIOL	non-polymer		62.1	2	Chemie (EDO)
5	J, K (A, B)	water	water		18.0	206	Chemie (HOH)

Sequence modifications

A, B: 36 - 187 (UniProt: Q81TW3)

PDB	External Database	Details
Met -23	-	expression tag
His -22	-	expression tag
His -21	-	expression tag
His -20	-	expression tag
His -19	-	expression tag
His -18	-	expression tag
His -17	-	expression tag
Ser -16	-	expression tag
Ser -15	-	expression tag
Gly -14	-	expression tag
Val -13	-	expression tag
Asp -12	-	expression tag
Leu -11	-	expression tag
Gly -10	-	expression tag
Thr -9	-	expression tag
Glu -8	-	expression tag
Asn -7	-	expression tag
Leu -6	-	expression tag
Tyr -5	-	expression tag
Phe -4	-	expression tag
Gln -3	-	expression tag
Ser -2	-	expression tag
Asn -1	-	expression tag
Ala 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	40509.6
Non-Polymers*	Number of molecules	7
	Total formula weight	919.1
All*	Total formula weight	41428.6

*Water molecules are not included.