AI Article Synopsis
- The family Cystobacteraceae includes over 20 species in 6 genera, classified mainly by their chitin-degrading abilities.
- Recent research focuses on the complete genome of Archangium gephyra, revealing its phylogenetic closeness to partial chitin degraders like Angiococcus disciformis.
- Comparative studies show that A. gephyra has a unique set of proteins and a single chitinase gene, highlighting evolutionary links to non-degrading bacteria.
Article Abstract
Family Cystobacteraceae is a group of eubacteria within order Myxococcales and class Deltaproteobacteria that includes more than 20 species belonging to 6 genera, that is, Angiococcus, Archangium, Cystobacter, Hyalangium, Melittangium, and Stigmatella. Earlier these members have been classified based on chitin degrading efficiency such as Cystobacter fuscus and Stigmatella aurantiaca, which are efficient chitin degraders, C. violaceus a partial chitin degrader and Archangium gephyra a chitin nondegrader. Here we report the 12.5 Mbp complete genome of A. gephyra DSM 2261T and compare it with four available genomes within the family Cystobacteraceae. Phylogeny and DNA-DNA hybridization studies reveal that A. gephyra is closest to Angiococcus disciformis, C. violaceus and C. ferrugineus, which are partial chitin degraders of the family Cystobacteraceae. Homology studies reveal the conservation of approximately half of the proteins in these genomes, with about 15% unique proteins in each genome. The total carbohydrate-active enzymes (CAZome) analysis reveals the presence of one GH18 chitinase in the A. gephyra genome whereas eight copies are present in C. fuscus and S. aurantiaca. Evolutionary studies of myxobacterial GH18 chitinases reveal that most of them are likely related to Terrabacteria and Proteobacteria whereas the Archangium GH18 homolog shares maximum similarity with those of chitin nondegrading Acidobacteria.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5441343 | PMC |
| http://dx.doi.org/10.1093/gbe/evx066 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Distinction between Borrelia and Borreliella is more robustly supported by molecular and phenotypic characteristics than all other neighbouring prokaryotic genera: Response to Margos' et al. "The genus Borrelia reloaded" (PLoS ONE 13(12): e0208432).
PLoS One
February 2020
Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada.
In a recent publication in PLOS ONE, Gabriele Margos and colleagues have questioned the division of the genus Borrelia into two genera on the basis that the differences in percentage of conserved proteins (POCP) between these two groups is >50%, which an earlier study has suggested as the threshold for differentiating prokaryotic genera. However, the POCP threshold is a poorly characterized and rarely used criterion for establishing distinction among prokaryotic genera. Detailed evaluation of the intergeneric POCP values for 37 genera from 3 different families (viz.
View Article and Find Full Text PDFComparative Genomics of Myxobacterial Chemosensory Systems.
J Bacteriol
February 2018
CSIR-Institute of Microbial Technology, Sector-39A, Chandigarh, India
Chemosensory systems (CSS) are among the most complex organizations of proteins functioning cooperatively to regulate bacterial motility and other cellular activities. These systems have been studied extensively in bacteria, and usually, they are present as a single system. Eight CSS, the highest number in bacteria, have been reported in DK1622 and are involved in coordinating diverse functions.
View Article and Find Full Text PDFUnravelling the Complete Genome of Archangium gephyra DSM 2261T and Evolutionary Insights into Myxobacterial Chitinases.
Genome Biol Evol
May 2017
Protein Science and Engineering, CSIR-Institute of Microbial Technology, Sector-39A, Chandigarh, India.
Article Synopsis
- The family Cystobacteraceae includes over 20 species in 6 genera, classified mainly by their chitin-degrading abilities.
- Recent research focuses on the complete genome of Archangium gephyra, revealing its phylogenetic closeness to partial chitin degraders like Angiococcus disciformis.
- Comparative studies show that A. gephyra has a unique set of proteins and a single chitinase gene, highlighting evolutionary links to non-degrading bacteria.
Vitiosangium cumulatum gen. nov., sp. nov. and Vitiosangium subalbum sp. nov., soil myxobacteria, and emended descriptions of the genera Archangium and Angiococcus, and of the family Cystobacteraceae.
Int J Syst Evol Microbiol
May 2017
German Center for Infection Research (DZIF), Partner site Hannover-Braunschweig, D-38124 Braunschweig, Germany.
Bacterial strains MCy10943T and MCy10944T were isolated in 2014 from dried Nepalese soil samples collected in 2013 from Phukot, Kalikot, Western Nepal, and Godawari, Lalitpur, Central Nepal. The novel organisms showed typical myxobacterial growth characteristics, which include swarming colony and fruiting body formation on solid surfaces, and a predatory ability to lyse micro-organisms. The strains were aerobic, mesophilic, chemoheterotrophic and showed resistance to various antibiotics.
View Article and Find Full Text PDFReclassification of Angiococcus disciformis, Cystobacter minus and Cystobacter violaceus as Archangium disciforme comb. nov., Archangium minus comb. nov. and Archangium violaceum comb. nov., unification of the families Archangiaceae and Cystobacteraceae, and emended descriptions of the families Myxococcaceae and Archangiaceae.
Int J Syst Evol Microbiol
November 2015
Leibniz Institute DSMZ - German Collection of Microorganisms and Cell Cultures, Inhoffenstrasse 7B, 38124 Braunschweig, Germany.
The species Archangium gephyra, Angiococcus disciformis, Cystobacter minus and Cystobacter violaceus are currently classified in three different genera of the order Myxococcales. The 16S rRNA gene sequences of the respective type strains show a similarity higher than 98.4 % and form a tight phylogenetic group.
View Article and Find Full Text PDFWant 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!