1E9Z

Crystal structure of Helicobacter pylori urease

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	UREASE SUBUNIT ALPHA	polymer	238	26571.7	1	UniProt (P14916) Pfam (PF00547) Pfam (PF00699) In PDB	HELICOBACTER PYLORI	UREA AMIDOHYDROLASE SUBUNIT ALPHA
2	B	UREASE SUBUNIT BETA	polymer	569	61745.4	1	UniProt (P69996) Pfam (PF00449) Pfam (PF01979) In PDB	HELICOBACTER PYLORI	UREA AMIDOHYDROLASE SUBUNIT BETA
3	B	NICKEL (II) ION	non-polymer		58.7	2	Chemie (NI)
4		water	water		18.0	78	Chemie (HOH)

Sequence modifications

A: 1 - 238 (UniProt: P14916)

PDB	External Database	Details
Ala 170	Ser 170	conflict

B: 1 - 569 (UniProt: P69996)

PDB	External Database	Details
Kcx 219	Lys 219	modified residue
Ala 355	Ile 355	conflict
Val 522	Ile 522	conflict
Asn 531	Asp 531	conflict

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	88317.1
Non-Polymers*	Number of molecules	2
	Total formula weight	117.4
All*	Total formula weight	88434.5

*Water molecules are not included.