Results 31 to 40 of about 208,937 (301)

Bacterial pH-optima for growth track soil pH, but are higher than expected at low pH

open access: yes, 2011
One of the most influential factors determining the growth and composition of soil bacterial communities is pH. However, soil pH is often correlated with many other factors, including nutrient availability and plant community, and causality among factors
Baath, E.   +11 more
core   +1 more source

In silico modeling of pH‐optimum of protein–protein binding [PDF]

open access: yesProteins: Structure, Function, and Bioinformatics, 2010
AbstractProtein–protein association is a pH‐dependent process and thus the binding affinity depends on the local pH. In vivo the association occurs in a particular cellular compartment, where the individual monomers are supposed to meet and form a complex. Since the monomers and the complex exist in the same micro environment, it is plausible that they
Mitra, Rooplekha C   +2 more
openaire   +2 more sources

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

Physiological adaptation of two unicellular green algae to pH stress. [PDF]

open access: yes, 1998
Two marine algae, Dunaliella parva and Chlorococcum submarinum were selected to study the effect of pH stress on single celled algae. D. parva has been well characterised physiologically, but not with regards to pH stress.
Howat, Judy I
core  

The effect of dietary calcium inclusion on broiler gastrointestinal pH: quantification and method optimization

open access: yes, 2014
There is little consensus as to the most appropriate methodology for the measurement of gastrointestinal pH in chickens. An experiment was conducted to establish the optimum sampling method for the determination of broiler digesta pH in birds fed ...
Walk, CL   +3 more
core   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Optimum pH Control Mechanism for Porcine Pancreaticα-Amylase [PDF]

open access: yesBioscience, Biotechnology, and Biochemistry, 1995
We studied the substrate-dependence of pH activity of porcine pancreatic alpha-amylase by using a series of p-nitrophenyl maltooligosaccharides. The mechanism controlling the optimum pH of mammalian alpha-amylase involved the reception and recognition of a substrate component at some other substrate binding sites, in addition to those at subsite 5 that
Ishikawa, Kazuhiko   +2 more
openaire   +2 more sources

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

open access: yesFEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

Determination Optimum pH Adsorption of Chromium Using Duck Feathers as Adsorbent Modification CH3OH and HCl

open access: yes, 2018
Telah dilakukan penelitian tentang “Penentuan pH Optimum Adsorpsi Kromium Menggunakan Adsorben Bulu Itik Termodifikasi CH3OH dan HCl”. Penelitian ini bertujuan untuk mengetahui konsentrasi CH3OH optimum pada proses modifikasi dan pH optimum adsorpsi ion ...
Dwi Nurwijayanti   +2 more
core   +1 more source

THE USE OF LOW QUALITY SWEET POTATOES ROOTS (Ipomoea batatas) FOR ALPHA·AMYLASE PRODUCTION BY Aspergillus oryzae [PDF]

open access: yesJournal of Soil Sciences and Agricultural Engineering, 2002
Low quality sweet potatoes roots were used as a carbon source to produce extracellular alpha-amylase by Asperigiffus arrzae in shake flask cultures. Peak alpha - amylase production was obtained by local strain of Aspergillus oryzae on sweet potatoes ...
A.E.I. Salim
doaj   +1 more source

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