Structure-prediction and hydrophobic-cluster analysis of several starch hydrolases and related enzymes indicated the organization of eleven domain types. Most enzymes possess a catalytic (beta/alpha)8-barrel and a smaller C-terminal domain as seen in crystal structures of alpha-amylase and cyclodextrin glucanotransferase. Some also have a starch-granule-binding domain. Enzymes breaking or forming endo-alpha-1,6 linkages contain domains N-terminal to the (beta/alpha)8-barrel.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1130598 | PMC |
| http://dx.doi.org/10.1042/bj2800051 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Preparation and Adsorption Properties of Sodium Trimetaphosphate Crosslinked Porous Corn Starch.
Biopolymers
March 2025
Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials, Nanning Normal University, Nanning, People's Republic of China.
The crosslinked porous corn starch was prepared by two steps: the native corn starch was hydrolyzed by α-amylase and glucoamylase, then the porous corn was crosslinked by sodium trimetaphosphate (STMP). The morphology and size of granules, spherulites, crystal type, molecular structure, swelling properties, thermal stability and adsorption properties of the crosslinked porous starch were investigated. The results indicated that a lot of holes formed in the porous starch, and the particle size of starch granules decreased.
View Article and Find Full Text PDFThe in-vitro digestibility of instant noodles: Interplay of texture, microstructure and starch structure.
Food Res Int
February 2025
Tianjin Key Laboratory of Food Science and Health, School of Medicine, NanKai University, Tianjin 300071, China. Electronic address:
Instant noodles are a worldwide food staple. However, the correlation between its production methods and nutritional characteristics remains unclear. This study aims to elucidate the effects of hydrothermal (steaming and boiling) and cooling techniques on instant noodles in-vitro digestibility.
View Article and Find Full Text PDFImpact of polysaccharide addition on the technological aspects of low lactose milk powders.
Food Res Int
February 2025
Dairy Technology Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India.
The research aimed to assess the effect of polysaccharides (maltodextrin and β-cyclodextrin) on technological properties of low-lactose milk powder obtained by spray drying of β-galactosidase hydrolysed milk. Low-lactose milk powders i.e.
View Article and Find Full Text PDFComparative study between fractional laser assisted drug delivery of botulinum toxin versus botulinum toxin injection in primary palmar and axillary hyperhidrosis.
Arch Dermatol Res
January 2025
Department of Dermatology, Medical Research and Clinical Studies Institute, National Research Centre, Giza, Egypt.
Palmar hyperhidrosis is common condition that is challenging to treat. Nonsurgical treatments include topical antiperspirants, iontophoresis, anticholinergic drugs and botulinum toxin injections. To evaluate the safety and efficacy of ablative fractional laser therapy, combined with topically applied botulinum toxin versus its injection for the treatment of hyperhidrosis.
View Article and Find Full Text PDFHeterologous expression of calcium-independent mesophilic α-amylase from Priestia megaterium: Immobilization on genipin-modified multi-walled carbon nanotubes and silica supports to enhance thermostability and catalytic activity.
Bioorg Chem
February 2025
Department of Bioengineering, Gebze Technical University, 41400, Gebze, Kocaeli, Türkiye; BAUZYME Biotechnology Co., Gebze Technical University Technopark, 41400, Gebze, Kocaeli, Türkiye. Electronic address:
α-Amylases, constituting a significant share of the enzyme market, are mainly synthesized by the genus Bacillus. Enzymes tailored for specific industrial applications are needed to meet the growing demand across a range of industries, and thus finding new amylases and optimizing the ones that already exist are extremely important. This study reports the successful expression, characterization and immobilization of P.
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!