Sequence characterization of four putative membrane-associated proteins from sweet potato little leaf strain V4 phytoplasma

Kate E Mounsey; C Streten; K S Gibb

doi:10.1111/j.1365-3059.2005.01291.x

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Sequence characterization of four putative membrane-associated proteins from sweet potato little leaf strain V4 phytoplasma

Journal article

Peer reviewed

Sequence characterization of four putative membrane-associated proteins from sweet potato little leaf strain V4 phytoplasma

Kate E Mounsey, C Streten and K S Gibb

Plant Pathology, Vol.55(1), pp.29-35

2006

DOI: https://doi.org/10.1111/j.1365-3059.2005.01291.x

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Abstract

Microbiology

Plant Biology

Crop and Pasture Production

ABC transporter

phytoplasma membrane proteins

pot gene

To increase understanding of the genetic architecture of phytoplasmas, a random clone (pH80) of the sweet potato little leaf strain-V4 (SPLL-V4) phytoplasma and the glucose-inhibited division protein A (gidA) gene were analysed. Clone pH80 and the gidA gene are located in a 100-kb region near the putative origin of replication. Three ORFs were identified within the pH80 random clone, encoding the proteins PotB, PotC and PotD, which form part of an ABC transport system for polyamine import. Sequence data were supported by structural analysis which indicated that SPLL-V4 PotB and PotC were integral membrane proteins, and PotD was a substrate-binding, surface-exposed membrane protein. The gidA gene in the SPLL-V4 phytoplasma was also putatively identified as a membrane protein. The complete gidA gene sequences were characterized for the tomato big bud and SPLL-V4 phytoplasmas. The proteins identified here were found to share high similarity with those recently identified in the onion yellows phytoplasma genome. Both the gidA and polyamine transport operons are believed to be associated with DNA replication.

Details

Title: Sequence characterization of four putative membrane-associated proteins from sweet potato little leaf strain V4 phytoplasma
Authors: Kate E Mounsey (Author) - Charles Darwin University
C Streten (Author) - Charles Darwin University
K S Gibb (Author) - Charles Darwin University
Publication details: Plant Pathology, Vol.55(1), pp.29-35
Publisher: Wiley-Blackwell Publishing Ltd.
Date published: 2006
DOI: 10.1111/j.1365-3059.2005.01291.x
ISSN: 0032-0862
Organisation Unit: School of Health - Biomedicine; University of the Sunshine Coast, Queensland; School of Health and Sport Sciences - Legacy; School of Health and Behavioural Sciences - Legacy
Language: English
Record Identifier: 99450146402621
Output Type: Journal article

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