PMID:12997228

Citation	LESTER, G (1952) The beta-galactosidase of lactose mutants of Escherichia coli, K-12.Arch. Biochem. Biophys. 40:390-401
Abstract	No abstract in PubMed
Links	PubMed
Keywords	Escherichia coli; Glycoside Hydrolases
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Main Points of the Paper

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Materials and Methods Used

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Phenotype Annotations

Species	Taxon ID	Strain	Gene (if known)	OMP	Phenotype	Details	Evidence	Notes
Escherichia coli	NCBI:562	Y-53		Abolished utilization of carbon source (lactose) Growth phenotype on EMB (grows on EMB, but has negative result on indicator for lactose) Abolished lactose catabolic process	Growth	cannot utilize lactose deficient in lactose metabolism	Plating Assay	plated on eosin-methylene blue agar
Escherichia coli	NCBI:562	Y-53		Utilization of carbon source (melibiose) Growth on EMB (positive result on indicator) Melibiose catabolic process Increased rate of?	Growth	The authors compared the ability of different strains to ferment different sugars ferment melibiose rapidly compared to control	Plating Assay	plated on eosin-methylene blue agar with 1% melibiose
Escherichia coli	NCBI:562	Y-53		Utilization of carbon source (xylose) Xylose catabolic process Reduced rate of? Growth on EMB (positive result for indicator)	Growth	The authors compared the ability of different strains to ferment different sugars ferment xylose slowly compared to control	Plating Assay	plated on eosin-methylene blue agar with 1% xylose
Escherichia coli	NCBI:562	W-45		Abolished carbon source utilization (lactose) Abolished lactose catabolic process Growth on EMB (negative result on indicator)	Growth	cannot utilize lactose deficient in lactose metabolism	Plating Assay	plated on eosin-methylene blue agar
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