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		About Pec
		The Profiling of Escherichia coli chromosome (PEC) database has been constructed to compile any relevant information that could help to characterize the E. coli genome, especially with respect to discovering the function of each gene.

Essential Genes

Genes Statistical Table

Classification	Whole	Minimal
essential	302	302
nonessential	4,432	3,136
unknown	5	5
Total	4,739	3,443

What's New !

August 12, 2011

• Gene data were updated. ( U00096.2 25-OCT-2010 ) .

September 22, 2010

• Transposon inserted positions were updated.

May 7, 2010

• Transposon inserted positions were added to linear view.