Results 41 to 50 of about 448,367 (195)

Activation and substrate specificity of the human P4-ATPase ATP8B1

open access: yesNature Communications, 2023
Asymmetric distribution of phospholipids in eukaryotic membranes is essential for cell integrity, signaling pathways, and vesicular trafficking. P4-ATPases, also known as flippases, participate in creating and maintaining this asymmetry through active ...
Thibaud Dieudonné   +9 more
doaj   +1 more source

Substrate specificity of prostate-specific antigen (PSA)

open access: yesChemistry & Biology, 1998
The serine protease prostate-specific antigen (PSA) is a useful clinical marker for prostatic malignancy. PSA is a member of the kallikrein subgroup of the (chymo)trypsin serine protease family, but differs from the prototypical member of this subgroup, tissue kallikrein, in possessing a specificity more similar to that of chymotrypsin than trypsin. We
Coombs, Gary   +8 more
openaire   +3 more sources

Substrate specificity of ceramide trihexosidase

open access: yesFEBS Letters, 1972
Artificial substrates such as 4-methylumbelliferyl glycosides and p-nitrophenyl glycosides have been employed commonly to determine the levels of glycosyl hydrolase activities in plasma, urine and tissues [l-7]. They have provided a simple and rapid method for the diagnosis of some lysosomal storage diseases, whereas in other instances inconsistencies ...
Carol A. Mapes, Charles C. Sweeley
openaire   +3 more sources

Exploring Class I polyhydroxyalkanoate synthases with broad substrate specificity for polymerization of structurally diverse monomer units

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
Polyhydroxyalkanoate (PHA) synthases (PhaCs) are key enzymes in PHA polymerization. PhaCs with broad substrate specificity are attractive for synthesizing structurally diverse PHAs.
Ramamoorthi M Sivashankari   +7 more
doaj   +1 more source

Combining structure and sequence information allows automated prediction of substrate specificities within enzyme families. [PDF]

open access: yesPLoS Computational Biology, 2010
An important aspect of the functional annotation of enzymes is not only the type of reaction catalysed by an enzyme, but also the substrate specificity, which can vary widely within the same family. In many cases, prediction of family membership and even
Marc Röttig   +2 more
doaj   +1 more source

Substrate specificity of branched chain amino acid aminotransferases: The substitution of glycine to serine in the active site determines the substrate specificity for α-ketoglutarate

open access: yesFrontiers in Catalysis, 2022
A branched chain aminotransferase from Thermoproteus tenax has been identified, cloned, over-expressed and biochemically characterised. A molecular modelling approach has been used to predict the 3D structure allowing its comparison with other related ...
Jan-Moritz Sutter   +5 more
doaj   +1 more source

Fine-tuning of substrate preferences of the Src-family kinase Lck revealed through a high-throughput specificity screen

open access: yeseLife, 2018
The specificity of tyrosine kinases is attributed predominantly to localization effects dictated by non-catalytic domains. We developed a method to profile the specificities of tyrosine kinases by combining bacterial surface-display of peptide libraries ...
Neel H Shah   +3 more
doaj   +1 more source

Investigation on substrate specificity and catalytic activity of serine protease neuropsin

open access: yesBiophysics and Physicobiology, 2022
Neuropsin is one of serine proteases mainly found at the hippocampus and the amygdala, where it contributes to the long-term potentiation and memory acquisition by rebuilding of synaptic connections.
Masami Lintuluoto   +5 more
doaj   +1 more source

Probing Steroidal Substrate Specificity of Cytochrome P450 BM3 Variants

open access: yesMolecules, 2016
M01A82W, M11A82W and M01A82WS72I are three cytochrome P450 BM3 (CYP102A1) variants. They can catalyze the hydroxylation of testosterone (TES) and norethisterone at different positions, thereby making them promising biocatalysts for steroid hydroxylation.
Xing Liu   +3 more
doaj   +1 more source

Rational engineering of an elevator-type metal transporter ZIP8 reveals a conditional selectivity filter critically involved in determining substrate specificity

open access: yesCommunications Biology, 2023
Engineering of transporters to alter substrate specificity as desired holds great potential for applications, including metabolic engineering. However, the lack of knowledge on molecular mechanisms of substrate specificity hinders designing effective ...
Yuhan Jiang   +8 more
doaj   +1 more source

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