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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

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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

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Porphyra yezoensis
Kazusa DNA Research Institute
Department of Plant Gene Research