1ETM

STRUCTURAL CHARACTERISTICS FOR BIOLOGICAL ACTIVITY OF HEAT-STABLE ENTEROTOXIN PRODUCED BY ENTEROTOXIGENIC ESCHERICHIA COLI: X-RAY CRYSTALLOGRAPHY OF WEAKLY TOXIC AND NONTOXIC ANALOGS

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	5-BETA-MERCAPTOPROPIONATE HEAT-STABLE ENTEROTOXIN	polymer	13	1300.6	1	UniProt (P01559) In PDB	Escherichia coli	(MPR==5==,LEU==13==)STP(5-17)
2		water	water		18.0	10	Chemie (HOH)

Sequence modifications

A: 6 - 17 (UniProt: P01559)

PDB	External Database	Details
Leu 13	Ala 67	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	1300.6
All*	Total formula weight	1300.6

*Water molecules are not included.