Abstract:
:C-type lectins play important roles in innate immunity of invertebrates. In the present study, we report a novel C-type lectin, named FcLec4, from the Chinese white shrimp Fenneropenaeus chinensis. FcLec4 contains a single carbohydrate recognition domain (CRD) with a putative signal peptide. Phylogenetic analysis indicated that FcLec4 was distant from most reported C-type lectins from shrimps. The expression of FcLec4 increased at both mRNA and protein level after stimulation of Vibrio anguillarum. Recombinant FcLec4 could agglutinate both Gram-positive and -negative bacteria in the presence of calcium. The recombinant protein could bind to peptidoglycan and selectively bind to microorganisms. Interestingly, the tight binding of recombinant FcLec4 to V. anguillarum might facilitate the subsequent clearance of the bacteria in vivo. To the best of our knowledge, this might be the first report that a C-type lectin was found to be directly involved in the anti-V. anguillarum response in shrimps.
journal_name
Dev Comp Immunoljournal_title
Developmental and comparative immunologyauthors
Wang XW,Zhang XW,Xu WT,Zhao XF,Wang JXdoi
10.1016/j.dci.2009.05.004subject
Has Abstractpub_date
2009-09-01 00:00:00pages
1039-47issue
9eissn
0145-305Xissn
1879-0089pii
S0145-305X(09)00093-7journal_volume
33pub_type
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