Korean Journal of Breeding Science (한국육종학회지)

The Korean Society of Breeding Science (한국육종학회)
권호 표지

Prediction of Rice Embryo Proteins using EST-Databases

  • Woo, Sun-Hee (Dept. of Crop Science, College of Agriculture, Life & Environment Sciences, Chungbuk National University) ;
  • Cho, Seung-Woo (Dept. of Crop Science, College of Agriculture, Life & Environment Sciences, Chungbuk National University) ;
  • Kim, Tae-Seon (Dept. of Crop Science, College of Agriculture, Life & Environment Sciences, Chungbuk National University) ;
  • Chung, Keun-Yook (Department of Agricultural Chemistry, College of Agriculture, Life & Environment Sciences, Chungbuk National University) ;
  • Cho, Yong-Gu (Dept. of Crop Science, College of Agriculture, Life & Environment Sciences, Chungbuk National University) ;
  • Kim, Hong-Sig (Dept. of Crop Science, College of Agriculture, Life & Environment Sciences, Chungbuk National University) ;
  • Song, Beom-Heon (Dept. of Crop Science, College of Agriculture, Life & Environment Sciences, Chungbuk National University) ;
  • Lee, Chul-Won (Dept. of Crop Science, College of Agriculture, Life & Environment Sciences, Chungbuk National University) ;
  • Jong, Seung-Keun (Dept. of Crop Science, College of Agriculture, Life & Environment Sciences, Chungbuk National University)
  • Received : 2006.04.21
  • Published : 2008.03.10
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Abstract

An attempt was made to link rice embryo proteins to DNA sequences and to understand their functions. One hundred of the 700 spots detected on the embryo 2-DE gels were microsequenced. Of these, 28% of the embryo proteins were matched to DNA sequences with known functions, but 72% of the proteins were unknown in functions as previously reported (Woo et al. 2002). In addition, twenty-four protein spots with 100% of homology and nine with over 80% were matched to ESTs (expressed sequence tags) after expanding the amino acid sequences of the protein spots by Database searches using the available rice EST databases at the NCBI (http://www/ncbi.nlm.nih.gov/) and DDBJ (http://www.ddbj.nig.ac.jp/). The chromosomal location of some proteins were also obtained from the rice genetic map provided by Japanese Rice Genome Research Program (http://rgp.dna.affrc.go.jp). The DNA sequence databases including EST have been reported for rice (Oryza sativa L.) now provides whole or partial gene sequence, and recent advances in protein characterization allow the linking proteins to DNA sequences in the functional analysis. This work shows that proteome analysis could be a useful tool strategy to link sequence information and to functional genomics.

Keywords

Acknowledgement

Supported by : Chungbuk National University

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