3BQA

Crystal Structure of an E.coli PhoQ Sensor Domain Mutant

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Sensor protein phoQ	polymer	148	17121.4	2	UniProt (P23837) Pfam (PF08918) In PDB	Escherichia coli
2	A	SULFATE ION	non-polymer		96.1	1	Chemie (SO4)
3		water	water		18.0	336	Chemie (HOH)

Sequence modifications

A, B: 43 - 190 (UniProt: P23837)

PDB	External Database	Details
Gln 148	Glu 148	engineered mutation
Asn 149	Asp 149	engineered mutation
Asn 150	Asp 150	engineered mutation
Asn 151	Asp 151	engineered mutation
Asn 152	Asp 152	engineered mutation
Gln 154	Glu 154	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	34242.7
Non-Polymers*	Number of molecules	1
	Total formula weight	96.1
All*	Total formula weight	34338.8

*Water molecules are not included.