Structure and stress-related expression of two cDNAs encoding proteinase inhibitor II of Nicotiana glutinosa L.

Doil Choi, Jong A. Park, Young Sam Seo, Yoon Joo Chun, Woo Taek Kim

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Abstract

Two cDNAs, pNGPI-1 and pNGPI-2, encoding Nicotiana glutinosa proteinase inhibitor II (PI-II) have been cloned, sequenced and identified. The deduced amino acid sequences are 54-82% identical to those of other plant PI-II. The NGPI-1 protein is composed of eight repeated domains, while NGPI-2 contains six repeated regions, each with a putative reactive site. The expression of NGPI-1 is highly regulated in a developmental- and tissue-specific manner, with the transcript being detected in young leaves and floral organs of N. glutinosa plants. In mature leaves, the NGPI-1 gene is rapidly activated by distinct temporal induction patterns in response to pathogen-related (biotic) and wound-related (abiotic) stresses. Copyright (C) 2000 Elsevier Science B.V.

Original languageEnglish
Pages (from-to)211-215
Number of pages5
JournalBiochimica et Biophysica Acta - Gene Structure and Expression
Volume1492
Issue number1
DOIs
Publication statusPublished - 2000 Jun 21

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All Science Journal Classification (ASJC) codes

  • Structural Biology
  • Biophysics
  • Biochemistry
  • Genetics

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