Enzyme Commission Number

Other names: EC Number

In its report in 1961, the first Enzyme Commission devised a system for enzyme classification that also serves as a basis for assigning code numbers. These code numbers, prefixed by EC, contain four elements separated by points / full stops and are now widely in use. The first number shows to which of the six main divisions (classes) the enzyme belongs and therefore identifies the class of reaction catalysed. The second number indicates the subclass, and generally contains information about the type of compound or group involved. The third figure gives the sub-subclass, which further specifies the type of reaction involved. The fourth figure is the serial number of the enzyme in its sub-subclass.

Webpage:
https://www.qmul.ac.uk/sbcs/iubmb/enzyme/rules.html

Tags:

centrally registered identifier classification enzyme enzyme commission number

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