Exploiting phytase variants from soils as a source of enzymes to improve animal feeds

Lead Research Organisation: Rothamsted Research
Department Name: Sustainable Soils and Grassland Systems

Abstract

Abstracts are not currently available in GtR for all funded research. This is normally because the abstract was not required at the time of proposal submission, but may be because it included sensitive information such as personal details.
 
Description Beta-propeller phytases are not of any significant industrial interest because of their limited pH range. However, other classes of phytase found in soil may be of more interest and these are being studied more closely now.

We have identified a second family of phosphohydrolases - multiple inositol-polyphosphate phosphatases (MINPP) - with soil phytase activity, and identified Acinetobacter spp. as harbouring this prevalent soil phytase activity. Previously, bacterial MINPP activity was described only in gut commensals.
Exploitation Route This report can be used by others to disqualify beta-propeller phytase variants as potential sources of biotechnological products. Other phytase variants such as Histidine Acid and Cysteine Phytases hold more potential
Sectors Agriculture

Food and Drink

Healthcare

Manufacturing

including Industrial Biotechology

 
Title pHMM models 
Description development of profile hidden Markov models for each of genes coding for acid and alkaline phosphatses and phytases - 9 in total 
Type Of Material Biological samples 
Year Produced 2017 
Provided To Others? Yes  
Impact improved detection of phosphatase and phytase genes in soil metagenomes will aid discovery of new environmental variants with potential industrial applications 
 
Description phytase activiety in soil isolates 
Organisation University of East Anglia
Department School of Biological Sciences UEA
Country United Kingdom 
Sector Academic/University 
PI Contribution I have contributed expertise with respect to metagenome-guided isolation of soil bacteria with potential phytase activity, intellectual input into future collaborative experimental work and training of a PhD student with respect to the isolation and culture of soil microbes
Collaborator Contribution Partners have contributed expertise in phytate chemistry and enzymmatic assays as well as HPLC detection of enzyme mechanisms
Impact No outcomes to date. Collaboration is multi-disciplinary, including microbiology, chemistry and enzymology
Start Year 2017