colicinogenic factor

biology

Also known as: Col factor

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Last updated

June 24, 2026

Quick Summary

The term "colicinogenic factor" refers to a type of plasmid, which is an extrachromosomal genetic element found in many bacteria. These plasmids are not essential for the bacterium's survival but can provide a selective advantage.1

Colicinogenic (or Col) factors specifically determine the production of colicins, which are proteins with antibiotic activity that can kill other bacteria. Some of these factors can transfer between bacterial cells, allowing them to spread rapidly within a population. Plasmids, including colicinogenic factors, are also crucial tools in genetic engineering for processes like gene cloning and recombinant protein production.21

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plasmid
One class of plasmids, colicinogenic (or Col ) factors, determines the production of proteins called colicins, which have antibiotic activity and can kill other bacteria. Another class of plasmids, R factors, confers upon bacteria resistance to antibiotics. Some Col factors and R factors can transfer themselves from one cell…
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One class of plasmids, colicinogenic (or Col ) factors, determines the production of proteins called colicins, which have antibiotic activity and can kill other bacteria. Another class of plasmids, R factors, confers upon bacteria resistance to antibiotics. Some Col factors and R factors can transfer themselves from one cell…
Read More