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Zoological Research
Kunming Institute of Zoology, Chinese Academy of Sciences
ISSN: 2095-8137
Vol. 32, No. 4, 2011, pp. 371-378
Bioline Code: zr11053
Full paper language: Chinese
Document type: Research Article
Document available free of charge

Zoological Research, Vol. 32, No. 4, 2011, pp. 371-378

 en Cloning and expression analysis of a long type peptidoglycan recognition protein (PGRP-L) from Xenopus tropicalis check for this species in other resources
Qi, Zhi-Tao; Zhang, Qi-Huan; Wang, Zi-Sheng; Wang, Ai-Min; Huang, Bei; Chang, Ming-Xian & Nie, Pin


Peptidoglycan recognition proteins (PGRPs) are a family of pattern recognition receptors (PRRs) of the immune system, which bind and hydrolyze bacterial peptidoglycan. Here, a long type PGRP (PGRP-L) was first cloned in the lower vertebrate species Xenopus tropicalis check for this species in other resources (Xt). The XtPGRP-L possessed a conserved genomic structure with five exons and four introns. The alignment and phylogenetic analysis indicated that XtPGRP-L might be a type of amidase-like PGRP. The 3-D model showed that XtPGRP-L possessed a conserved structure compared with the Drosophila PGRP-Lb. During embryonic development, XtPGRP-L was not expressed until the 72 h tadpole stage. In adult tissues, it was strongly expressed in the liver, lung, intestine, and stomach. Furthermore, after LPS stimulation, the expression of XtPGRP-L was up-regulated significantly in the liver, intestine and spleen, indicating that XtPGRP-L may play an important role in the innate immunity of Xenopus tropicalis.

Peptidoglycan recognition protein; Gene clone; Expression analysis; Xenopus tropicalis

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