Abstract:
:cDNAs of Anopheles gambiae Defensin 2 (AgDef2), Defensin 3 (AgDef3) and Defensin 4 (AgDef4), identified in the genome sequence, have been characterized and their expression profiles investigated. In contrast to both typical defensins and insect antimicrobial peptides generally, the newly identified defensins were not upregulated with acute-phase kinetics following immune challenge in insects or cell culture. However, mRNA abundance of AgDef2, AgDef3 and AgDef4 increased significantly during the larval stages. Promoter analysis of all three genes failed to identify putative immune response elements previously identified in other mosquito defensin genes. As previous studies failed to identify these larval-specific defensins, it seems likely that further antimicrobial peptide genes with nontypical expression profiles will be identified as more genome sequences become available.
journal_name
Insect Mol Bioljournal_title
Insect molecular biologyauthors
Meredith JM,Hurd H,Lehane MJ,Eggleston Pdoi
10.1111/j.1365-2583.2008.00786.xsubject
Has Abstractpub_date
2008-04-01 00:00:00pages
103-12issue
2eissn
0962-1075issn
1365-2583pii
IMB786journal_volume
17pub_type
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