Molecular characterization of a new 1-deoxy-D-xylulose-5-phosphate reductoisomerase (DXR) transcript from Vanda Mimi Palmer.

A 1-deoxy-d-xylulose 5-phosphate reductoisomerase (DXR) transcript was successfully isolated from the floral cDNA library of Vanda Mimi Palmer (VMPDXR). The full-length cDNA of clone VMPDXR was predicted to encode a polypeptide of 473 amino acid residues with 15 bp of 5′ UTR and 230 bp of 3′ UTR inc...

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Main Authors: Wai, Sun Chan, Abdullah, Janna Ong, Namasivayam, Parameswari, Mahmood, Maziah
Format: Article
Language:English
English
Published: Elsevier 2009
Online Access:http://psasir.upm.edu.my/id/eprint/15695/
http://psasir.upm.edu.my/id/eprint/15695/1/Molecular%20characterization%20of%20a%20new%201.pdf
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author Wai, Sun Chan
Abdullah, Janna Ong
Namasivayam, Parameswari
Mahmood, Maziah
author_facet Wai, Sun Chan
Abdullah, Janna Ong
Namasivayam, Parameswari
Mahmood, Maziah
author_sort Wai, Sun Chan
building UPM Institutional Repository
collection Online Access
description A 1-deoxy-d-xylulose 5-phosphate reductoisomerase (DXR) transcript was successfully isolated from the floral cDNA library of Vanda Mimi Palmer (VMPDXR). The full-length cDNA of clone VMPDXR was predicted to encode a polypeptide of 473 amino acid residues with 15 bp of 5′ UTR and 230 bp of 3′ UTR including a poly-A tail. VMPDXR was predicted to have a molecular mass of 51.4 kD and a pI value of 6.04. It has two conserved domains, an N-terminal NADPH binding site (GSTGSIG) and an N-terminal proline-rich region(PPPPAWPGR). It also contains two highly homologous regions, a 78–207 amino acids stretch at the N-terminal and a 221–304 amino acids stretch at the C-terminal domain. The putative plastid transit peptide is not found in VMPDXR and it is clustered into the plant DXRs in the phylogenetic tree. VMPDXR was differentially expressed in roots, leaves, sepals, petals and column. The VMPDXR transcript levels were preferentially high in blooming and fully bloomed flowers compared to the bud. The expression of VMPDXR at different times did not appear in a rhythmic manner and no drastic fluctuation was observed at night except at 2 pm during the day.
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spelling upm-156952015-10-22T00:24:25Z http://psasir.upm.edu.my/id/eprint/15695/ Molecular characterization of a new 1-deoxy-D-xylulose-5-phosphate reductoisomerase (DXR) transcript from Vanda Mimi Palmer. Wai, Sun Chan Abdullah, Janna Ong Namasivayam, Parameswari Mahmood, Maziah A 1-deoxy-d-xylulose 5-phosphate reductoisomerase (DXR) transcript was successfully isolated from the floral cDNA library of Vanda Mimi Palmer (VMPDXR). The full-length cDNA of clone VMPDXR was predicted to encode a polypeptide of 473 amino acid residues with 15 bp of 5′ UTR and 230 bp of 3′ UTR including a poly-A tail. VMPDXR was predicted to have a molecular mass of 51.4 kD and a pI value of 6.04. It has two conserved domains, an N-terminal NADPH binding site (GSTGSIG) and an N-terminal proline-rich region(PPPPAWPGR). It also contains two highly homologous regions, a 78–207 amino acids stretch at the N-terminal and a 221–304 amino acids stretch at the C-terminal domain. The putative plastid transit peptide is not found in VMPDXR and it is clustered into the plant DXRs in the phylogenetic tree. VMPDXR was differentially expressed in roots, leaves, sepals, petals and column. The VMPDXR transcript levels were preferentially high in blooming and fully bloomed flowers compared to the bud. The expression of VMPDXR at different times did not appear in a rhythmic manner and no drastic fluctuation was observed at night except at 2 pm during the day. Elsevier 2009-02 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/15695/1/Molecular%20characterization%20of%20a%20new%201.pdf Wai, Sun Chan and Abdullah, Janna Ong and Namasivayam, Parameswari and Mahmood, Maziah (2009) Molecular characterization of a new 1-deoxy-D-xylulose-5-phosphate reductoisomerase (DXR) transcript from Vanda Mimi Palmer. Scientia Horticulturae, 121. pp. 378-382. ISSN 0304-4238 English
spellingShingle Wai, Sun Chan
Abdullah, Janna Ong
Namasivayam, Parameswari
Mahmood, Maziah
Molecular characterization of a new 1-deoxy-D-xylulose-5-phosphate reductoisomerase (DXR) transcript from Vanda Mimi Palmer.
title Molecular characterization of a new 1-deoxy-D-xylulose-5-phosphate reductoisomerase (DXR) transcript from Vanda Mimi Palmer.
title_full Molecular characterization of a new 1-deoxy-D-xylulose-5-phosphate reductoisomerase (DXR) transcript from Vanda Mimi Palmer.
title_fullStr Molecular characterization of a new 1-deoxy-D-xylulose-5-phosphate reductoisomerase (DXR) transcript from Vanda Mimi Palmer.
title_full_unstemmed Molecular characterization of a new 1-deoxy-D-xylulose-5-phosphate reductoisomerase (DXR) transcript from Vanda Mimi Palmer.
title_short Molecular characterization of a new 1-deoxy-D-xylulose-5-phosphate reductoisomerase (DXR) transcript from Vanda Mimi Palmer.
title_sort molecular characterization of a new 1-deoxy-d-xylulose-5-phosphate reductoisomerase (dxr) transcript from vanda mimi palmer.
url http://psasir.upm.edu.my/id/eprint/15695/
http://psasir.upm.edu.my/id/eprint/15695/1/Molecular%20characterization%20of%20a%20new%201.pdf