You may type 1 digit into the first field (the enzyme class), 1 or 2 digits into the second and third fields (subclass and sub-subclass), and up to 3 digits into the fourth field. For example, you may type 1.2.1.26 to get the corresponding ENZYME entry.
You may also enter a partial EC number in order to get a list of all ENZYME entries whose EC numbers begin with the given pattern. For example, you may just type 1.2. . .
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Back to the ExPASy molecular biology server home page