Nikaido I, Asamizu E, Nakajima M, Nakamura Y, Saga N, Tabata S
Generation of 10,154 Expressed Sequence Tags from a Leafy Gametophyte of a Marine Red Alga, Porphyra yezoensis
DNA Research, 7, 223-227 (2000)

Figures and Tables

Table 1 Classification of 5'-end ESTs by similarity search against the non-redundant protein database.
Similarity Number of groups Number of clones
Genes of known functiona) 934 3799
Hypothetical genesb) 146 915
No similarityc) 2187 5440
Total 3267 10154
a) showed similarity to genes of known function,
b) showed similarity to hypothetical genes that have no definition of function,
c) showed no similarity

Table 2 Classification of the non-redundant EST groups with similarity to known protein genes by their functional categories.
Functional categories Number of non-
redundant groups
Energy metabolism 130
Protein synthesis 112
Protein fate 104
Cellular structure, organization and biogenesis 77
Transport and binding proteins 72
Regulatory functions 55
Signal transduction 37
Cellular processes 36
Amino-acid biosynthesis 32
DNA metabolism 21
Fatty acid and phospholipid metabolism 21
Purines, pyrimidines, nucleosides, and nucleotides 16
Central intermediary metabolism 14
General transcription 13
Biosynthesis of cofactors, prosthetic groups, and carriers 7
Growth and development 7
Pathogen responses 7
Secondary metabolism 5
Environmental response 4
Other categories 2
Unclassified 162
Total 934

Porphyra yezoensis
Kazusa DNA Research Institute
Department of Plant Gene Research