ArticleApplied and environmental microbiology2005
Roles of four chitinases (chia, chib, chic, and chid) in the chitin degradation system of marine bacterium Alteromonas sp. strain O-7.
Article in Applied and environmental microbiology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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Who cites it
22 citing papers in PubMed, 59 citations in OpenAlex.
- The core microbiome of the AMF hyphosphere: mineralization mechanisms of key soil mineral elements.Mycorrhiza · 2026Review
- Genomic analysis and chitinase characterization ofFrontiers in microbiology · 2023Article
- Differential Modulation of the European Sea Bass Gut Microbiota by Distinct Insect Meals.Frontiers in microbiology · 2022Article
- Diversity of culturable bacteria endowed with antifungal metabolites biosynthetic characteristics associated with tea rhizosphere soil of Assam, India.BMC microbiology · 2021Article
- Enzymatic Modification of Native Chitin and Conversion to Specialty Chemical Products.Marine drugs · 2020Review
- Comparative genomic analysis reveals the evolution and environmental adaptation strategies of vibrios.BMC genomics · 2018Article
- Genomic, Physiologic, and Symbiotic Characterization ofFrontiers in microbiology · 2017Article
- Biological Potential of Chitinolytic Marine Bacteria.Marine drugs · 2016Article
- Microbial Surface Colonization and Biofilm Development in Marine Environments.Microbiology and molecular biology reviews : MMBR · 2016Review
- Characterization of a cold-adapted and salt-tolerant exo-chitinase (ChiC) from Pseudoalteromonas sp. DL-6.Extremophiles : life under extreme conditions · 2016Article
- The Vibrio cholerae extracellular chitinase ChiA2 is important for survival and pathogenesis in the host intestine.PloS one · 2014Article
- Synthesis of long-chain chitooligosaccharides by a hypertransglycosylating processive endochitinase of Serratia proteamaculans 568.Journal of bacteriology · 2012Article
- Mining of unexplored habitats for novel chitinases--chiA as a helper gene proxy in metagenomics.Applied microbiology and biotechnology · 2012Article
- Chitin binding proteins act synergistically with chitinases in Serratia proteamaculans 568.PloS one · 2012Article
- The importance of chitin in the marine environment.Marine biotechnology (New York, N.Y.) · 2011Article
- The chitinolytic activity of Listeria monocytogenes EGD is regulated by carbohydrates but also by the virulence regulator PrfA.Applied and environmental microbiology · 2010Article
- Aeromonas caviae CB101 contains four chitinases encoded by a single gene chi1.Molecular biotechnology · 2010Article
- The genome sequence of the fish pathogen Aliivibrio salmonicida strain LFI1238 shows extensive evidence of gene decay.BMC genomics · 2008Article
- Chitin hydrolysis by Listeria spp., including L. monocytogenes.Applied and environmental microbiology · 2008Article
- Conservation of the chitin utilization pathway in the Vibrionaceae.Applied and environmental microbiology · 2008Article
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Alteromonas sp. strain O-7 secretes four chitinases (ChiA, ChiB, ChiC, and ChiD) in the presence of chitin. To elucidate why the strain produces multiple chitinases, we studied the expression levels of the four genes and proteins, their enzymatic properties, and their synergistic effects on chitin degradation. Among the four chitinases, ChiA was produced in the largest quantities, followed by ChiD, and the production of ChiB and ChiC changed at lower levels than those of ChiA and ChiD. The expression of the chiA, chiB, chiC, and chiD genes was investigated at the transcriptional level. The RNA transcript of chiA was most strongly induced in the presence of chitin, the expression of chiD followed, and the RNA transcripts of chiB and chiC changed at low levels. The hydrolyzing activities of the four chitinases against various substrates were examined. ChiA was the most active enzyme against powdered chitin, whereas ChiC was the most active against soluble chitin among the four chitinases. ChiD had activities closer to those of ChiA than to those of ChiB and ChiC. ChiB showed no distinctive feature against the chitinous substrates tested. When powdered chitin was treated with the proper combination of four chitinases, an approximately 2.0-fold increase in the hydrolytic activity was observed. These results, together with the results described above, indicate that ChiA plays a central role in chitin degradation for this strain.
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