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Table 2 Genes in Cycas rumphii with potential roles in signaling, development and biosynthesis of BMAA

From: Expressed sequence tag analysis in Cycas, the most primitive living seed plant

  GenBank accession number Subject description E-value % ID Score
Development CB092871 Argonaute-like protein 1 (AGO1) Arabidopsis thaliana 8.00e-10 0.85 34
  CB090033 YABBY2 A. thaliana 2.00e-36 0.58 151
  CB089539 Multisubunit regulator protein COP9 - spinach COP9 Spinacia oleracea 2.00e-31 0.62 98
  CB092157 CONSTANS B-box zinc finger family protein A. thaliana 1.00e-47 0.48 221
  CB092462 CRHB3 homeoprotein Ceratopteris richardii 3.00e-44 0.70 131
  CB089344 Homeodomain protein HB2 Picea abies 3.00e-29 0.62 117
Signaling CB089945 Photolyase/blue-light receptor PHR2 8.00e-76 0.69 197
  CB091652 Putative glutamate receptor protein GLR3.4b 2.00e-45 0.54 161
  CB093220 Calmodulin-like protein; protein ids At5g44460.1 A. thaliana 3.00e-07 0.58 45
  CB089469 14-3-3 protein Fritillaria cirrhosa 8.00e-38 0.80 94
  CB091066 Ser/Thr protein kinase isolog; protein ids, supported by cDNAs Arabidopsis 1.00e-10 0.28 185
  CB090652 Ser/Thr specific protein phosphatase 2A B regulatory subunit beta Medicago 4.00e-86 0.94 162
  CB093099 Auxin regulated protein (IAA13) A. thaliana 1.00e-34 0.63 125
  CB089385 Auxin-induced protein IAA9 A. thaliana 8.00e-29 0.55 111
Biosynthetic enzymes of cycad specific phytochemicals (BMAA)      
Cysteine synthase CB089577 Cysteine synthase (O-acetylserine sulfhydrylase) 3.00e-50 0.75 128
  CB092214 Plastid cysteine synthase 2 Solanum tuberosum 5.00e-27 0.64 83
Methyl transferases CB091906 Caffeic acid O-methyltransferase II Nicotiana tabacum 3.00e-35 0.56 122
  CB090738 Caffeoyl-CoA 3-O-methyltransferase Oryza sativa 1.00e-37 0.47 188
SAdM metabolism      
Adenosylhomocysteinase (S-adenosyl-L-homocysteine hydrolase) CB091477 Adenosylhomocysteinase Phalaenopsis 1.00e-87 0.84 185
  CB091821 Adenosylhomocysteinase Triticum aestivum 3.00e-78 0.90 156
  CB090818 Adenosylhomocysteinase Medicago sativa 2.00e-18 0.68 66
S-adenosylmethionine synthase CB091682 S-adenosylmethionine synthetase Brassica juncea 4.00e-90 0.94 167
  CB090997 S-adenosylmethionine synthetase (methionine adenosyltransferase) Petunia 1.00e-69 0.94 133
  CB090407 S-adenosyl-L-methionine synthetase Elaeagnus umbellata 1.00e-93 0.88 191
Homocysteine methyltransferase CB092344 Methionine synthase protein Sorghum bicolor 4.00e-94 0.90 190
  CB091647 5-methyltetrahydropteroyltriglutamate - homocysteine S-methyltransferase 3.00e-79 0.76 205
  1. C. rumphii ESTs were compared to GenBank with a BLASTP score < e-5. The top match produced from the BLAST search to the cycad EST is listed under subject description.