ISSN:
1573-5028
Keywords:
bean chitinase cDNA
;
cysteine-rich domain
;
plant defence
;
chemical stress
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract The amino acid sequences of peptides generated by trypsin and chymotrypsin digestions of the acidic PR4 chitinase from bean were determined. Oligonucleotide primers derived from this sequence were used to synthesize a PR4 chitinase-specific probe by PCR-amplification. This probe allowed the isolation of cDNA clones encoding PR4 chitinase that have been sequenced. This acidic and extracellular chitinase shows some homology to the basic isoform from the same plant, and differs from other known acidic chitinases by the presence of an amino-terminal cysteine-rich domain. Southern blot analysis of bean genomic DNA revealed that PR4 chitinase is encoded by a single gene.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00039499
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