title: [Plutella xylostella granulovirus PP31 interacts with two host proteins].
abstract: Protein-protein interactions between viruses and hosts are common during viral infection and replication. In this study, a cDNA library from larvae of Plutella xylostella was constructed and used for screening of genes encoding proteins interacting with Plutella xylostella granulovirus (PlxyGV) proteins. Two cDNA clones containing genes encoding proteins interacting with PlxyGV PP31 were identified by yeast two-hybrid assays. Sequence analysis showed that the genes encoded homologues of receptor for activated protein C kinase (RACK) and methionine aminopeptidase 2 (MetAP2), respectively. The P. xylostella rack gene and the PlxyGV pp31 was expressed in an E. coli strain to produce proteins fused with a 6-His or a GST tag. It was shown that the rack was expressed as a 38kD peptide as prospected. The 38kD His-tagged peptide was co-purified with GST-PP31 by GST-bind resin in GST-pulldown assays, confirming interaction between the PlxyGV PP31 and the RACK protein of P. xylostella.
authors.affiliation: Hubei Key Laboratory of Genetic Regulation and Integrative Biology, College of Life Sciences, Central China Normal University, Wuhan 430079, China.
authors.forename: Pan-Feng
authors.initials: PF
authors.lastname: Liu
authors.forename: Si-Min
authors.initials: SM
authors.lastname: Wang
authors.forename: Yin
authors.initials: Y
authors.lastname: Liu
authors.forename: Lu-Lin
authors.initials: LL
authors.lastname: Li
mesh_terms: D000626:Aminopeptidases / Q000235:genetics* / Q000502:physiology; D000818:Animals; D015723:Gene Library; D025722:Granulovirus / Q000502:physiology*; D008666:Metalloendopeptidases / Q000235:genetics* / Q000502:physiology; D009036:Moths / Q000821:virology*; D000075370:Receptors for Activated C Kinase; D011956:Receptors, Cell Surface / Q000235:genetics* / Q000502:physiology
chemical_list: D000075370:Receptors for Activated C Kinase; D011956:Receptors, Cell Surface; D000626:Aminopeptidases; C106541:methionine aminopeptidase 2; D008666:Metalloendopeptidases