Results 51 to 60 of about 10,846,120 (403)

The chloroplast import receptor Toc34 functions as preprotein-regulated GTPase [PDF]

open access: yes, 2002
Toc34 is a protein of the chloroplast outer envelope membrane that acts as receptor for preproteins containing a transit sequence. The recognition of preproteins by Toc34 is regulated by GTP binding and phosphorylation.
Hörth, P.   +5 more
core   +1 more source

Chemical Attachment of 5-Nitrosalicylaldimine Motif to Silatrane Resulting in an Organic–Inorganic Structure with High Medicinal Significance

open access: yesPharmaceutics, 2022
Two chemical motifs of interest for medicinal chemistry, silatrane as 1-(3-aminopropyl) silatrane (SIL M), and nitro group attached in position 5 to salicylaldehyde, are coupled in a new structure, 1-(3-{[(2-hydroxy-5-nitrophenyl)methylidene]amino}propyl)
Mirela-Fernanda Zaltariov   +10 more
doaj   +1 more source

Structural Mechanism for the Specific Assembly and Activation of the Extracellular Signal Regulated Kinase 5 (ERK5) Module [PDF]

open access: yes, 2013
Mitogen-activated protein kinase (MAPK) activation depends on a linear binding motif found in all MAPK kinases (MKK). In addition, the PB1 (Phox and Bem1) domain of MKK5 is required for extracellular signal regulated kinase 5 (ERK5) activation.
Aberg   +57 more
core   +1 more source

The Cell Density Factor CMF Regulates the Chemoattractant Receptor cAR1 in Dictyostelium [PDF]

open access: yes, 1996
Starving Dictyostelium cells aggregate by chemotaxis to cAMP when a secreted protein called conditioned medium factor (CMF) reaches a threshold concentration.
Bishop, John D.,   +2 more
core   +11 more sources

Unraveling Hepcidin Plasma Protein Binding: Evidence from Peritoneal Equilibration Testing

open access: yesPharmaceuticals, 2019
Peptide hormone hepcidin regulates systemic iron metabolism and has been described to be partially bound to α2-macroglobulin and albumin in blood. However, the reported degree of hepcidin protein binding varies between <3% and ≈89%.
Laura E. Diepeveen   +8 more
doaj   +1 more source

A Kinetic Transition Network Model Reveals the Diversity of Protein Dimer Formation Mechanisms

open access: yesBiomolecules, 2023
Protein homodimers have been classified as three-state or two-state dimers depending on whether a folded monomer forms before association, but the details of the folding–binding mechanisms are poorly understood.
Dániel Györffy   +2 more
doaj   +1 more source

The major transcriptional regulatory protein of herpes simplex virus type 1 includes a protease resistant DNA binding domain [PDF]

open access: yes, 1990
Herpes simplex virus type 1 expresses five immediateearly (IE) polypeptides. In the absence of functional Vmw175 (the product of IE gene 3) activation of transcription of later classes of viral genes and repression of IE gene expression does not occur ...
Elliott, M., Everett, R.D., Paterson, T.
core   +2 more sources

Computational prediction of protein–protein binding affinities

open access: yesWIREs Computational Molecular Science, 2019
Protein–protein interactions form central elements of almost all cellular processes. Knowledge of the structure of protein–protein complexes but also of the binding affinity is of major importance to understand the biological function of protein–protein ...
Till Siebenmorgen, M. Zacharias
semanticscholar   +1 more source

Photoaffinity Labeling of Plasma Proteins

open access: yesMolecules, 2013
Photoaffinity labeling is a powerful technique for identifying a target protein. A high degree of labeling specificity can be achieved with this method in comparison to chemical labeling.
Masaki Otagiri, Victor Tuan Giam Chuang
doaj   +1 more source

Molecular mechanism of Gαi activation by non-GPCR proteins with a Gα-Binding and Activating motif [PDF]

open access: yes, 2017
Heterotrimeric G proteins are quintessential signalling switches activated by nucleotide exchange on Gα. Although activation is predominantly carried out by G-protein-coupled receptors (GPCRs), non-receptor guanine-nucleotide exchange factors (GEFs) have
Baillie, George S.   +14 more
core   +1 more source

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