Results 21 to 30 of about 810,832 (336)

Error thresholds for self- and cross-specific enzymatic replication [PDF]

open access: yes, 2010
The information content of a non-enzymatic self-replicator is limited by Eigen's error threshold. Presumably, enzymatic replication can maintain higher complexity, but in a competitive environment such a replicator is faced with two problems related to ...
Acevedo   +56 more
core   +5 more sources

Substrate specificity of human MCPIP1 endoribonuclease

open access: yesScientific Reports, 2018
MCPIP1, also known as Regnase-1, is a ribonuclease crucial for regulation of stability of transcripts related to inflammatory processes. Here, we report that MCPIP1 acts as an endonuclease by degrading several stem-loop RNA structures and single-stranded
Mateusz Wilamowski   +3 more
doaj   +1 more source

Crystal Structure and Substrate Specificity of PTPN12

open access: yesCell Reports, 2016
PTPN12 is an important tumor suppressor that plays critical roles in various physiological processes. However, the molecular basis underlying the substrate specificity of PTPN12 remains uncertain.
Hui Li   +18 more
doaj   +1 more source

Phosphotyrosine Substrate Sequence Motifs for Dual Specificity Phosphatases. [PDF]

open access: yesPLoS ONE, 2015
Protein tyrosine phosphatases dephosphorylate tyrosine residues of proteins, whereas, dual specificity phosphatases (DUSPs) are a subgroup of protein tyrosine phosphatases that dephosphorylate not only Tyr(P) residue, but also the Ser(P) and Thr(P ...
Bryan M Zhao   +8 more
doaj   +1 more source

Substrate specificity in the biomimetic catalytic aerobic oxidation of styrene and cyclohexanone by metalloporphyrins: kinetics and mechanistic study

open access: yesGreen Chemical Engineering, 2021
Substrate specificity is a hallmark of enzymatic catalysis. In this work, the biomimetic catalytic oxidation of styrene and cyclohexanone by iron (III) porphyrins and molecular oxygen was carried out, and remarkable differences in efficiency were ...
Xian-Tai Zhou, Hong-Bing Ji
doaj   +1 more source

On the substrate specificity of human CYP27A1

open access: yesJournal of Lipid Research, 2003
The mitochondrial sterol 27-hydroxylase (CYP27A1) is required for degradation of the C27-sterol side chain in bile acid biosynthesis. CYP27A1 seems, however, to have roles beyond this, as illustrated by patients with a deficient sterol 27-hydroxylase due
Maria Norlin   +3 more
doaj   +1 more source

Insights into a Cancer-Target Demethylase: Substrate Prediction through Systematic Specificity Analysis for KDM3A

open access: yesBiomolecules, 2022
Jumonji C (JmjC) lysine demethylases (KDMs) catalyze the removal of methyl (-CH3) groups from modified lysyl residues. Several JmjC KDMs promote cancerous properties and these findings have primarily been in relation to histone demethylation.
Anand Chopra   +2 more
doaj   +1 more source

Repurposing designed mutants: a valuable strategy for computer-aided laccase engineering – the case of POXA1b [PDF]

open access: yes, 2017
The broad specificity of laccases, a direct consequence of their shallow binding site, makes this class of enzymes a suitable template to build specificity toward putative substrates.
Giacobelli, Valerio G.   +6 more
core   +2 more sources

Substrate Specificity of Chlorophyllase [PDF]

open access: yesPlant Physiology, 1975
Apparent Km and V(max) values were obtained for hydrolysis of methyl and ethyl chlorophyllides a, methyl and ethyl pheophorbide a, and 9-hydroxymethyl pheophorbide a by chlorophyllase from Ailanthus altissima. Analysis of substrate specificity data for chlorophyllase indicates that the presence of a 9-keto group and a methyl alcohol group esterified at
openaire   +2 more sources

Elucidation of substrate specificity in Aspergillus nidulans UDP-galactose-4-epimerase. [PDF]

open access: yesPLoS ONE, 2013
The frequency of invasive fungal infections has rapidly increased in recent years. Current clinical treatments are experiencing decreased potency due to severe host toxicity and the emergence of fungal drug resistance.
Sean A Dalrymple   +4 more
doaj   +1 more source

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