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Two homologous parasitism-specific proteins encoded in Cotesia plutellae bracovirus and their expression profiles in parasitized Plutella xylostella.
Arch Insect Biochem Physiol. 2008 Apr; 67(4):157-71.AI

Abstract

A wasp, Cotesia plutellae, parasitizes the diamondback moth, Plutella xylostella, and interrupts host physiology for wasp survival and development. Identification of parasitism-specific factors would be helpful to understand the host-parasitoid interaction. This study focused on identification of a 15-kDa protein found only in plasma of the parasitized P. xylostella. Degenerate primers were designed after N-terminal amino acid sequencing of the parasitism-specific protein and used to clone the corresponding gene from the parasitized P. xylostella by a nested reverse transcriptase-polymerase chain reaction (RT-PCR). Two homologous genes were cloned and identified as "CpBV15alpha" and "CpBV15beta," respectively, due to the identical size (158 amino acid residues) of the predicted open reading frames, in which they shared amino acid sequences in both terminal regions, but varied in internal sequences. Southern hybridization analysis indicated that both genes were located on C. plutellae bracovirus genome. Real-time quantitative RT-PCR revealed that both genes were mostly expressed at the late parasitization period, which was further confirmed by an immunoblotting assay using CpBV15 antibody. A recombinant CpBV15 protein was produced from Sf9 cells via a baculovirus expression system. The purified CpBV15 protein could enter hemocytes of P. xylostella and were localized in the cytosol. Along with the sequence similarities of CpBV15s with eukaryotic initiation factors, their putative biological role has been discussed in terms of the host translation inhibitory factor.

Authors+Show Affiliations

Department of Bioresource Sciences, Andong National University, Andong, Korea.No affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18348211

Citation

Lee, Sunyoung, and Yonggyun Kim. "Two Homologous Parasitism-specific Proteins Encoded in Cotesia Plutellae Bracovirus and Their Expression Profiles in Parasitized Plutella Xylostella." Archives of Insect Biochemistry and Physiology, vol. 67, no. 4, 2008, pp. 157-71.
Lee S, Kim Y. Two homologous parasitism-specific proteins encoded in Cotesia plutellae bracovirus and their expression profiles in parasitized Plutella xylostella. Arch Insect Biochem Physiol. 2008;67(4):157-71.
Lee, S., & Kim, Y. (2008). Two homologous parasitism-specific proteins encoded in Cotesia plutellae bracovirus and their expression profiles in parasitized Plutella xylostella. Archives of Insect Biochemistry and Physiology, 67(4), 157-71. https://doi.org/10.1002/arch.20218
Lee S, Kim Y. Two Homologous Parasitism-specific Proteins Encoded in Cotesia Plutellae Bracovirus and Their Expression Profiles in Parasitized Plutella Xylostella. Arch Insect Biochem Physiol. 2008;67(4):157-71. PubMed PMID: 18348211.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Two homologous parasitism-specific proteins encoded in Cotesia plutellae bracovirus and their expression profiles in parasitized Plutella xylostella. AU - Lee,Sunyoung, AU - Kim,Yonggyun, PY - 2008/3/19/pubmed PY - 2008/6/18/medline PY - 2008/3/19/entrez SP - 157 EP - 71 JF - Archives of insect biochemistry and physiology JO - Arch Insect Biochem Physiol VL - 67 IS - 4 N2 - A wasp, Cotesia plutellae, parasitizes the diamondback moth, Plutella xylostella, and interrupts host physiology for wasp survival and development. Identification of parasitism-specific factors would be helpful to understand the host-parasitoid interaction. This study focused on identification of a 15-kDa protein found only in plasma of the parasitized P. xylostella. Degenerate primers were designed after N-terminal amino acid sequencing of the parasitism-specific protein and used to clone the corresponding gene from the parasitized P. xylostella by a nested reverse transcriptase-polymerase chain reaction (RT-PCR). Two homologous genes were cloned and identified as "CpBV15alpha" and "CpBV15beta," respectively, due to the identical size (158 amino acid residues) of the predicted open reading frames, in which they shared amino acid sequences in both terminal regions, but varied in internal sequences. Southern hybridization analysis indicated that both genes were located on C. plutellae bracovirus genome. Real-time quantitative RT-PCR revealed that both genes were mostly expressed at the late parasitization period, which was further confirmed by an immunoblotting assay using CpBV15 antibody. A recombinant CpBV15 protein was produced from Sf9 cells via a baculovirus expression system. The purified CpBV15 protein could enter hemocytes of P. xylostella and were localized in the cytosol. Along with the sequence similarities of CpBV15s with eukaryotic initiation factors, their putative biological role has been discussed in terms of the host translation inhibitory factor. SN - 0739-4462 UR - https://www.unboundmedicine.com/medline/citation/18348211/Two_homologous_parasitism_specific_proteins_encoded_in_Cotesia_plutellae_bracovirus_and_their_expression_profiles_in_parasitized_Plutella_xylostella_ DB - PRIME DP - Unbound Medicine ER -