Molecular and Functional Characterization of a Short-Type Peptidoglycan Recognition Protein, Ct-PGRP-S1 in the Giant Triton Snail .

Int J Mol Sci

CAS Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China.

Published: September 2022

AI Article Synopsis

  • Peptidoglycan recognition proteins (PGRPs) play a role in antibacterial responses in various animals, but their function in the giant triton snail is not well-studied.
  • A new PGRP gene, Ct-PGRP-S1, was identified in the snail, showing key structural features and high expression levels mainly in the liver.
  • Ct-PGRP-S1 demonstrated the ability to degrade peptidoglycan and exhibited antibacterial activity, indicating its significance in the snail's immune response against bacterial infections.

Article Abstract

Peptidoglycan recognition proteins (PGRPs) are a family of pattern recognition receptors (PRRs) involved in host antibacterial responses, and their functions have been characterized in most invertebrate and vertebrate animals. However, little information is available regarding the potential function of PGRPs in the giant triton snail . In this study, a short-type PGRP gene (termed ) was identified in . Ct-PGRP-S1 was predicted to contain several structural features known in PGRPs, including a typical PGRP domain (Amidase_2) and Src homology-3 (SH3) domain. The gene was constitutively expressed in all tissues examined except in proboscis, with the highest expression level observed in the liver. As a typical PRR, Ct-PGRP-S1 has an ability to degrade peptidoglycan (PGN) and was proven to have non-Zn-dependent amidase activity and antibacterial activity against and . It is the first report to reveal the peptidoglycan recognition protein in , and these results suggest that peptidoglycan recognition protein Ct-PGRP-S1 is an important effector of that modulates bacterial infection resistance of and , and this study may provide crucial basic data for the understanding of an innate immunity system of .

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9570181PMC
http://dx.doi.org/10.3390/ijms231911062DOI Listing

Publication Analysis

Top Keywords

peptidoglycan recognition
16
recognition protein
12
protein ct-pgrp-s1
8
giant triton
8
triton snail
8
peptidoglycan
5
recognition
5
molecular functional
4
functional characterization
4
characterization short-type
4

Similar Publications

Insights into the catalytic mechanism of archaeal peptidoglycan endoisopeptidases from methanogenic phages.

Int J Biol Macromol

January 2025

Center of Infectious Diseases, Division of Infectious Diseases in State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China. Electronic address:

Archaeal peptidoglycan, a crucial component of the cell walls of Methanobacteria and Methanopyri, enhances the tightness of methanogenic cells and their resistance to known lytic enzymes and antibiotics. Although archaeal peptidoglycan endoisopeptidases (Pei) can reportedly degrade archaeal peptidoglycan, their biochemistry is still largely unknown. In this study, we investigated the activity and catalytic properties of the endoisopeptidases PeiW and PeiP using synthesized isopeptides identical to natural substrates.

View Article and Find Full Text PDF

Hydrodynamic characterization of the FtsZ protein from Escherichia coli demonstrates the presence of linear and lateral trimers.

Anal Biochem

January 2025

Laboratorio de Biología Estructural y Molecular BEM, Facultad de Ciencias, Universidad de Chile, Las Palmeras 3425 Ñuñoa, Santiago, 7800003, Chile; Laboratorio de Biotecnología Vegetal y Ambiental Aplicada, Universidad Tecnológica Metropolitana, Santiago, Chile.

FtsZ is a bacterial protein that plays a crucial role in cytokinesis by forming the Z-ring. This ring acts as a scaffold to recruit other division proteins and guide the synthesis of septal peptidoglycan, which leads to cell constriction. In its native state, the FtsZ protein from Escherichia coli (EcFtsZ) is a multi-oligomer comprising dimers, trimers, tetramers, and hexamers in a dynamic self-association equilibrium depending on its concentration.

View Article and Find Full Text PDF

The acidophilic and heat-resistant characteristics of Alicyclobacillus acidoterrestris (A. acidoterrestris) pose significant challenges to fruit juice production. Traditional thermal removal methods are often ineffective against this resilient bacterium.

View Article and Find Full Text PDF

Cell wall components of gut commensal bacteria stimulate peritrophic matrix formation in malaria vector mosquitoes through activation of the IMD pathway.

PLoS Biol

January 2025

State Key Laboratory of Genetic Engineering, School of Life Sciences, Department of Infectious Diseases, Zhongshan Hospital, Fudan University, Shanghai, China.

The peritrophic matrix (PM) acts as a physical barrier that influences the vector competence of mosquitoes. We have previously shown that gut microbiota promotes PM formation in Anopheles stephensi, although the underlying mechanisms remain unclear. In this study, we identify that the cell wall components of gut commensal bacteria contribute to PM formation.

View Article and Find Full Text PDF

Functional characterization and regulatory pattern of Neoseiulus barkeri peptidoglycan recognition protein (PGRP).

Int J Biol Macromol

January 2025

Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River, Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400716, China; Yibin Academy of Southwest University, Yibin 644000, China. Electronic address:

Compared with traditional biological control, the co-use of entomopathogenic fungi and multiple enemies has made great progress in biocontrol technology. However, the risk posed by entomopathogenic fungi to their host has not been fully evaluated. Further, the interaction between them has not described adequately.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!