חיפוש מתקדם
Gene
Koltai, H., Department of Nematology, A. R. O., Volcani Center, Bet-Dagan 50-250, Israel
Chejanovsky, N., Department of Entomology, A. R. O., Volcani Center, Bet-Dagan 50-250, Israel
Raccah, B., Department of Virology, A. R. O., Volcani Center, Bet-Dagan 50-250, Israel
Spiegel, Y., Department of Nematology, A. R. O., Volcani Center, Bet-Dagan 50-250, Israel
The nematode's surface comprises a multilayered cuticle, which consists mainly of collagen proteins. We identified, cloned and characterized the first cuticular collagen gene, Mjcol-3, of the plant-parasitic nematode Meloidogyne javanica. The gene putatively encodes a 32.4-kDa collagen protein, including a propeptide which possesses a subtilisin-like protease-cleavage site. Six introns were identified in the gene sequence, with three slightly different acceptor-splicing sites. The basic structure of the predicted MJCOL-3 protein sequence is highly similar to that of the Caenorhabditis elegans DPY-7, with 65.9% identity between the two amino acid sequences. Relative to DPY-7, the putative MJCOL-3 protein has a shorter carboxy-terminus. This non-conserved feature may indicate different contributions of DPY-7 and MJCOL-3 collagens to the structure of the cuticle. Mjcol-3 is developmentally regulated: transcripts were found mainly in preparasitic developing eggs, less in parasitic third- and fourth-stage juveniles and young females shortly after the fourth molt, and much less in females before egg-laying.
פותח על ידי קלירמאש פתרונות בע"מ -
הספר "אוצר וולקני"
אודות
תנאי שימוש
The first isolated collagen gene of the root-knot nematode Meloidogyne javanica is developmentally regulated
196
Koltai, H., Department of Nematology, A. R. O., Volcani Center, Bet-Dagan 50-250, Israel
Chejanovsky, N., Department of Entomology, A. R. O., Volcani Center, Bet-Dagan 50-250, Israel
Raccah, B., Department of Virology, A. R. O., Volcani Center, Bet-Dagan 50-250, Israel
Spiegel, Y., Department of Nematology, A. R. O., Volcani Center, Bet-Dagan 50-250, Israel
The first isolated collagen gene of the root-knot nematode Meloidogyne javanica is developmentally regulated
The nematode's surface comprises a multilayered cuticle, which consists mainly of collagen proteins. We identified, cloned and characterized the first cuticular collagen gene, Mjcol-3, of the plant-parasitic nematode Meloidogyne javanica. The gene putatively encodes a 32.4-kDa collagen protein, including a propeptide which possesses a subtilisin-like protease-cleavage site. Six introns were identified in the gene sequence, with three slightly different acceptor-splicing sites. The basic structure of the predicted MJCOL-3 protein sequence is highly similar to that of the Caenorhabditis elegans DPY-7, with 65.9% identity between the two amino acid sequences. Relative to DPY-7, the putative MJCOL-3 protein has a shorter carboxy-terminus. This non-conserved feature may indicate different contributions of DPY-7 and MJCOL-3 collagens to the structure of the cuticle. Mjcol-3 is developmentally regulated: transcripts were found mainly in preparasitic developing eggs, less in parasitic third- and fourth-stage juveniles and young females shortly after the fourth molt, and much less in females before egg-laying.
Scientific Publication
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