Results 31 to 40 of about 604,484 (380)

Hanks-Type Serine/Threonine Protein Kinases and Phosphatases in Bacteria: Roles in Signaling and Adaptation to Various Environments [PDF]

open access: yes, 2018
Reversible phosphorylation is a key mechanism that regulates many cellular processes in prokaryotes and eukaryotes. In prokaryotes, signal transduction includes two-component signaling systems, which involve a membrane sensor histidine kinase and a ...
Janczarek, Monika   +3 more
core   +1 more source

Threonine Requirement and Threonine Imbalance in Broiler Chickens

open access: yesPoultry Science, 1994
Three experiments were conducted to determine the effect of excess dietary protein on threonine requirement of broiler chicks to 14 d of age (Experiments 1 and 2) and to determine the threonine requirement from 16 to 28 d of age (Experiment 3). Two dietary protein levels were used in Experiments 1 and 2:20% CP in a threonine-limiting basal diet ...
Richard E. Austic   +2 more
openaire   +3 more sources

Pro-inflammatory Cytokines and Environmental Stress Cause p38 Mitogen-activated Protein Kinase Activation by Dual Phosphorylation on Tyrosine and Threonine (*)

open access: yesJournal of Biological Chemistry, 1995
Protein kinases activated by dual phosphorylation on Tyr and Thr (MAP kinases) can be grouped into two major classes: ERK and JNK. The ERK group regulates multiple targets in response to growth factors via a Ras-dependent mechanism.
J. Raingeaud   +6 more
semanticscholar   +1 more source

Free Amino Acids Analysis in the Venom of the Social Wasp Polistes lanio Under Different Forms of Preservation

open access: yesOrbital: The Electronic Journal of Chemistry, 2018
Venoms of social wasps have in their composition proteins, peptides, among others and several of these compounds were evaluated for their function in the venom, however, there is still no study of the quantification of free amino acids of venom of social
Viviana de Oliveira Torres   +3 more
doaj   +1 more source

Intermolecular interactions in the chiral and racemic forms of 3-hydroxy-2-(1-oxoisoindolin-2-yl)butanoic acid derived from threonine [PDF]

open access: yes, 2000
The title compounds, C₁₂H₁₃NO₄, are derived from L-threonine and DL-threonine, respectively. Hydrogen bonding in the chiral derivative, (2S/3R)-3-hydroxy-2-(1-oxoisoindolin-2-yl)butanoic acid, consists of O-Hacid...Oalkyl-H...O=Cindole chains [O...O 2 ...
Brady, Fiona   +2 more
core   +1 more source

A Novel Peptide-Based SILAC Method to Identify the Posttranslational Modifications Provides Evidence for Unconventional Ubiquitination in the ER-Associated Degradation Pathway. [PDF]

open access: yes, 2013
The endoplasmic reticulum-associated degradation (ERAD) pathway is responsible for disposing misfolded proteins from the endoplasmic reticulum by inducing their ubiquitination and degradation.
Anania, Veronica   +4 more
core   +3 more sources

The Serine/Threonine Protein Kinase (Akt)/ Protein Kinase B (PkB) Signaling Pathway in Breast Cancer [PDF]

open access: yes, 2020
According to statistical data published in 2019, breast cancer is among the leading causes of death in women worldwide. The serine/threonine kinase (AKT) or protein kinase B (PkB) signaling pathway is activated by phosphorylation processes, which further
Bratu, Ovidiu Gabriel   +8 more
core   +3 more sources

An ABC transporter containing a forkhead-associated domain interacts with a serine-threonine protein kinase and is required for growth of Mycobacterium tuberculosis in mice [PDF]

open access: yes, 2005
Forkhead-associated (FHA) domains are modular phosphopeptide recognition motifs with a striking preference for phosphothreonine-containing epitopes. FHA domains have been best characterized in eukaryotic signaling pathways but have been identified in six
Buxton, RS   +8 more
core   +2 more sources

Glycine, serine and threonine metabolism confounds efficacy of complement-mediated killing

open access: yesNature Communications, 2019
Serum resistance is a poorly understood but common trait of some difficult-to-treat pathogenic strains of bacteria. Here, we report that glycine, serine and threonine catabolic pathway is down-regulated in serum-resistant Escherichia coli, whereas ...
Zhi-xue Cheng   +11 more
semanticscholar   +1 more source

Stereochemistry of the Conversions of l‐Threonine and d‐Threonine into 2‐Oxobutanoate by the l‐Threonine and d‐Threonine Dehydratases of Serratia marcescens [PDF]

open access: yesEuropean Journal of Biochemistry, 1980
dl[3‐2H]Threonine, l‐[3‐2H]threonine, (2RS,3S)‐2‐amino[3‐2H1] butanoic acid, (2RS,3S) 2‐amino[3‐3H1]butanoic acid and dl‐2‐amino[3‐14C]butanoic acid were synthesised. l‐[3‐2‐H]Threonine was converted into l‐[4‐2H1]isoleucine by Serratia marcescens strain IHr313.
Crout, David H. G.   +5 more
openaire   +4 more sources

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