ID   3.5.99.7
DE   1-aminocyclopropane-1-carboxylate deaminase.
AN   1-aminocyclopropane-1-carboxylate endolyase (deaminating).
AN   1-aminocyclopropane carboxylic acid deaminase.
AN   ACC deaminase.
CA   1-aminocyclopropane-1-carboxylate + H2O = 2-oxobutanoate + NH4(+).
CC   -!- The enzyme, found in certain soil bacteria and fungi, catalyzes the
CC       ring opening of 1-aminocyclopropane-1-carboxylate, the immediate
CC       precursor to ethylene, an important plant hormone that regulates
CC       fruit ripening and other processes.
CC   -!- The enzyme releases an unstable enamine product that tautomerizes to
CC       an imine form, which undergoes spontaneous hydrolytic deamination.
CC   -!- The enzyme has been used to make fruit ripening dependent on
CC       externally added ethylene, as it removes the substrate for endogenous
CC       ethylene formation.
CC   -!- Formerly EC 4.1.99.4.
DR   B9MGI8, 1A1D_ACIET ;  B9JJB7, 1A1D_AGRRK ;  B9K206, 1A1D_ALLAM ;
DR   Q89XR6, 1A1D_BRADU ;  A5EJ46, 1A1D_BRASB ;  A4YUJ5, 1A1D_BRASO ;
DR   B1YYR8, 1A1D_BURA4 ;  A0AXI7, 1A1D_BURCH ;  B4EJA6, 1A1D_BURCJ ;
DR   Q0B569, 1A1D_BURCM ;  Q390Z5, 1A1D_BURL3 ;  A9AQJ3, 1A1D_BURM1 ;
DR   A3ME84, 1A1D_BURM7 ;  A2RWH4, 1A1D_BURM9 ;  Q62CE3, 1A1D_BURMA ;
DR   A1UVN3, 1A1D_BURMS ;  B1K774, 1A1D_BURO0 ;  Q1BL32, 1A1D_BURO1 ;
DR   A3P669, 1A1D_BURP0 ;  Q3JLQ0, 1A1D_BURP1 ;  A3NKK4, 1A1D_BURP6 ;
DR   Q63KN7, 1A1D_BURPS ;  Q2T6A1, 1A1D_BURTA ;  A4JKV8, 1A1D_BURVG ;
DR   Q5KMX3, 1A1D_CRYNJ ;  Q0K1H0, 1A1D_CUPNH ;  Q7M523, 1A1D_CYBSA ;
DR   Q9ZHW3, 1A1D_ENTCL ;  B8IP05, 1A1D_METNO ;  A2SLW2, 1A1D_METPP ;
DR   B0UGM0, 1A1D_METS4 ;  A1TVP2, 1A1D_PARC0 ;  B2TBV3, 1A1D_PARPJ ;
DR   Q13ME5, 1A1D_PARXL ;  Q48KS9, 1A1D_PSE14 ;  Q51813, 1A1D_PSEFL ;
DR   Q5PWZ8, 1A1D_PSEPU ;  P30297, 1A1D_PSES0 ;  Q87YW7, 1A1D_PSESM ;
DR   Q4ZVH4, 1A1D_PSEU2 ;  Q00740, 1A1D_PSEUD ;  Q9V2L2, 1A1D_PYRAB ;
DR   Q8U4R3, 1A1D_PYRFU ;  O57809, 1A1D_PYRHO ;  Q8XS35, 1A1D_RALN1 ;
DR   B2UGM5, 1A1D_RALPJ ;  Q98AM7, 1A1D_RHILO ;  Q93AG0, 1A1D_RHILV ;
DR   Q9AHF0, 1A1D_RHIRD ;  Q9URX3, 1A1D_SCHPO ;  Q9WY68, 1A1D_THEMA ;
DR   Q6J256, 1A1D_VARPD ;  C5CQC9, 1A1D_VARPS ;  F4HYF3, DCYD1_ARATH;
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