Cereal Research Communications
Volume/Issue:
Volume 42: Issue 1

Characterization of a Phytase (TaPAPhy_a1.1) Gene in an Indian Wheat Cultivar

Authors:
A. Verma Agrasain Marg Directorate of Wheat Research P.O. Box 158 Karnal 132 001 India

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S. Ram Agrasain Marg Directorate of Wheat Research P.O. Box 158 Karnal 132 001 India

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S. Dalal Kurukshetra University Department of Biotechnology Kurukshetra India

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Pages:
102–110
Online Publication Date:
19 Oct 2013
Publication Date:
01 Mar 2014
Article Category:
Research Article
DOI:
https://doi.org/10.1556/crc.2013.0046
Keywords:
nutritional quality; purple acid phosphatase; Triticum aestivum
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A full length phytase (TaPAPhy_a1.1) gene was cloned and sequenced from Indian wheat cultivar DBW17. The 2,060 bp sequence has four introns of 63, 90, 94, 103 bp and encodes a polypeptide of 548 amino acids. N-terminal residues 5 to 19 contain a signaling peptide (SP) targeted to the vacuole. The predicted molecular weight and isoelectric point were 60.53 kDa and 6.74, respectively. A phylogenetic tree analysis revealed that TaPAPhy_a1.1 clustered on a branch with PAPhy_a1 from Aegilops tauschii cultivar NGB 9855. A structural model of TaPAPhy_a1.1 protein showed a single chain dimer containing two metal ions (Fe and Zn) bound at its active site. It belongs to the metallophosphoesterase group containing a characteristic set of seven amino acid residues (Asp, Asp, Tyr, Asn, His, His, His) involved in metal ligation. The full length TaPAPhy_a1.1 gene sequence from this investigation can be used for allele mining studies to identify superior alleles for higher phytase levels for improving the nutritional quality of wheat.

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Cover Cereal Research Communications
Cereal Research Communications A Quarterly of the Cereal Research Non-Profit Ltd. Company
Print ISSN:
0133-3720
Online ISSN:
1788-9170

 

 

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Cereal Research Communications
Language English
Size A4
Year of
Foundation		 1973
Volumes
per Year		 1
Issues
per Year		 4
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0133-3720 (Print)
ISSN 1788-9170 (Online)

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