7XS0

Trimer structure of HtrA from Helicobacter pylori bound with a tripeptide

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Periplasmic serine endoprotease DegP-like	polymer	441	47854.1	1	UniProt (O25663) Pfam (PF13365) Pfam (PF13180) In PDB	Helicobacter pylori 26695
2	B	UNK-UNK-UNK	polymer	3	273.3	1		Escherichia coli BL21(DE3)
3		water	water		18.0	65	Chemie (HOH)

Sequence modifications

A: 43 - 475 (UniProt: O25663)

PDB	External Database	Details
Met -8	-	initiating methionine
Gly -7	-	expression tag
His -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
His -1	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	48127.4
All*	Total formula weight	48127.4

*Water molecules are not included.