The high industrial demand for thermostable chitinase with new and desirable characteristics has led to the exploration of chitinolytic bacteria from extreme environments. Therefore, this study aimed isolate, screen, identify chitinase–producing Ijen hot spring, Indonesia. highest activity bacterium was identified by 16S rRNA gene sequencing its were confirmed morphological physiological analys...

Table of Contents 1 Introduction 1 1.1 Structure and function of chitinases 1 1.2 Filarial chitinases are potential targets for interventions 4 1.3 A. viteae as a model to investigate parasitological parameters of filarial diseases 6 1.4 Aims and objectives of the study 7 2 Results 9 2.1 Characterisation of A. viteae chitinase genes 9 2.1.1 Determination of the gene structure of A. viteae chiti...

Sequence data for genes encoding 16S rRNA indicated that the marine strain previously named Pseudomonas sp. strain S9 would be better identified as a Pseudoalteromonas sp. By use of transposon mutagenesis, a chitinase-negative mutant of S9 with a lacZ reporter gene insertion was isolated. Part of the interrupted gene was cloned and sequenced. The deduced amino acid sequence had homology to sequ...

Cotton cultivar Coker has been already transformed with recombinant pBI121-chi via Agrobacterium tumefaciens. The T-DNA region of pBI121-chi carries the chitinase (chi ) gene from bean and is under the control of the CaMV35S promoter. T1 and T2 progenies of transgenic cotton containing the chi gene were used in this study.  Polymerase chain reaction (PCR), Southern and Western blotting data con...

Leishmaniasis, an infectious disease that affects humans, domestic dogs, and wild animals, is caused by 20 of the 53 Leishmania genus species transmitted sandflies. Despite its significant impact, often neglected. genus, belong to Trypanosomatide Family Kinetoplastida Order, are grouped in five subgroups according biogeographic evolution history parasites hosts. The GH18 chitinase encoded a spe...

Analysis of clones isolated from a cosmid DNA library indicates that the Serratia marcescens chromosome contains at least two genes, chiA and chiB, which encode distinct secreted forms of the enzyme chitinase. These genes have been characterized by inspection of chitinase activity and secreted proteins in Escherichia coli strains containing subclones of these cosmids. The two chitinase genes sh...

Chitinase A of Streptomyces cyaneus SP-27 or chitinase I of Bacillus circulans KA-304 showed the protoplast-forming activity when combined with alpha-1,3-glucanase of B. circulans KA-304. The gene of chitinase A was cloned. It consisted of 903 nucleotides encoding 301 amino acid residues, including a putative signal peptide (35 amino acid residues). The deduced N-terminal moiety of chitinase A ...

Plants synthesize a number of antimicrobial proteins in response to pathogen invasion and environmental stresses. These proteins include two classes of chitinases that have either basic or acidic isoelectric points and that are capable of degrading fungal cell wall chitin. We have cloned and determined the nucleotide sequence of the genes encoding the acidic and basic chitinases from Arabidopsi...

Chitinases are the hydrolytic enzymes which belong to the pathogenesis-related (PR) protein family and play an important role not only in plant defense but also in various abiotic stresses. However, only a limited number of chitinase genes have been characterised in B. juncea. In this study, we have characterised B. juncea class IV chitinase gene (accession no EF586206) in response to fungal in...

Expression of the Arabidopsis acidic chitinase promoter was investigated during plant development and in response to inoculation with fungal pathogens. A chimeric gene composed of 1129 bp of 5[prime] upstream sequence from the acidic chitinase gene was fused to the [beta]-glucuronidase (GUS) coding region and used to transform Arabidopsis and tomato. Promoter activity was monitored by histochem...