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CATH Superfamily 3.40.50.1100

The name of this superfamily has been modified since the most recent official CATH+ release (v4_4_0). At the point of the last release, this superfamily was: waiting to be named.

Functional Families

Overview of the Structural Clusters (SC) and Functional Families within this CATH Superfamily. Clusters with a representative structure are represented by a filled circle.
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FunFam 42: Bifunctional D-cysteine desulfhydrase/1-aminocyclo...

There are 2 EC terms in this cluster

Please note: EC annotations are assigned to the full protein sequence rather than individual protein domains. Since a given protein can contain multiple domains, it is possible that some of the annotations below come from additional domains that occur in the same protein, but have been classified elsewhere in CATH.

Note: The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.

EC Term Annotations Evidence
1-aminocyclopropane-1-carboxylate deaminase. [EC: 3.5.99.7]
1-aminocyclopropane-1-carboxylate + H(2)O = 2-oxobutanoate + NH(3).
  • The enzyme, found in certain soil bacteria and fungi, catalyzes the ring opening of 1-aminocyclopropane-1-carboxylate, the immediate precursor to ethylene, an important plant hormone that regulates fruit ripening and other processes.
  • The enzyme releases an unstable enamine product that tautomerizes to an imine form, which undergoes spontaneous hydrolytic deamination.
  • The enzyme has been used to make fruit ripening dependent on externally added ethylene, as it removes the substrate for endogenous ethylene formation.
  • Formerly EC 4.1.99.4.
 5 F4HYF3 G4FHD9 G4FHD9 Q9WY68 Q9WY68
D-cysteine desulfhydrase. [EC: 4.4.1.15]
D-cysteine + H(2)O = H(2)S + NH(3) + pyruvate.
    		 2 F4HYF3 Q6ZHE5
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