Table III.

Splice variants (SVs) of selected Arabidopsis (At), rice (Os), and maize (Zm) Atg genes

GeneAtSVs without the Essential CodonaOsSVs without the Essential CodonaZmSVs without the Essential Codona
Atg3(a)b13SV2, SV32SV2
Atg3bb2SV1, SV2
Atg4a2None2SV22None
Atg4b3None16None
Atg512None2None
Atg715SV2, SV3, SV4, SV51
Atg8a2None2SV22SV2
Atg8b2None4SV44SV3, SV4
Atg8c13SV2, SV33SV2, SV3
Atg8d13SV2, SV34SV2?, SV3, SV4
Atg8e2None13None
Atg8f2None
Atg8g1
Atg8h1
Atg8i1
Atg10(a)b2None16SV3, SV4, SV5, SV6
Atg10bb2SV1
Atg12a12SV25SV2, SV3, SV4, SV5
Atg12b1
  • a Criteria for SVs without the essential codon solely depend on amino acid sequences deduced from SVs and vary for different Atg genes. For Atg3, Atg7, and Atg10, the essential codon means one that encodes a conserved active-site Cys in the corresponding protein. For Atg8 and Atg12, a codon for the C-terminal Gly residue is important, while the essential codon for Atg4 genes encodes an N-terminal active-site Cys. For Atg5, the codon for a Lys acceptor is essential. See Figure 1 for the positions of these codons within the predicted full-length gene.

  • b These genes are single copy in Arabidopsis and maize but duplicated in rice.