View in Gene3D

CATH Superfamily 3.40.50.1100

The name of this superfamily has been modified since the most recent official CATH+ release (v4_2_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.
« Back to all FunFams

FunFam 24716: D-cysteine desulfhydrase

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
D-cysteine desulfhydrase. [EC: 4.4.1.15]
D-cysteine + H(2)O = H(2)S + NH(3) + pyruvate.
    		 100 A0A010RQ82 A0A031FWB0 A0A031J5D4 A0A059L081 A0A085US35 A0A099SR83 A0A0A1I3Q9 A0A0B7D519 A0A0D0SNT2 A0A0E2UGV8
    (90 more...)
    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.
    		 1 F6M7Y1