Results 61 to 70 of about 723,818 (342)

Subunit Stoichiometry of a Heteromultimeric G protein-coupled Inward-rectifier K^+ Channel [PDF]

open access: yes, 1996
We investigated the stoichiometry of the heteromultimeric G protein-coupled inward-recitfier K^+ channel (GIRK) formed from GIRK1 and GIRK4 subunits. Multimeric GIRK constructs with several concatenated channel subunits were expressed in Xenopus oocytes.
Dougherty, Dennis A.   +2 more
core  

Decoding the dual role of autophagy in cancer through transcriptional and epigenetic regulation

open access: yesFEBS Letters, EarlyView.
Transcriptional and epigenetic regulation controls autophagy, which exerts context‐dependent effects on cancer: Autophagy suppresses tumorigenesis by maintaining cellular homeostasis or promotes tumor progression by supporting survival under stress. In this “In a Nutshell” article, we explore the intricate mechanisms of the dual function of autophagy ...
Young Suk Yu, Ik Soo Kim, Sung Hee Baek
wiley   +1 more source

A Mammalian Homolog of Drosophila melanogaster Transcriptional Coactivator Intersex Is a Subunit of the Mammalian Mediator Complex [PDF]

open access: yes, 2003
The multiprotein Mediator complex is a coactivator required for transcriptional activation of RNA polymerase II transcribed genes by DNA binding transcription factors.
Banks, Charles A. S.   +7 more
core   +1 more source

Autophagy in cancer and protein conformational disorders

open access: yesFEBS Letters, EarlyView.
Autophagy plays a crucial role in numerous biological processes, including protein and organelle quality control, development, immunity, and metabolism. Hence, dysregulation or mutations in autophagy‐related genes have been implicated in a wide range of human diseases.
Sergio Attanasio
wiley   +1 more source

Subunit interactions within the Saccharomyces cerevisiae DNA polymerase ε (pol ε) complex - Demonstration of a dimeric pol ε [PDF]

open access: yes, 2000
Saccharomyces cerevisiae DNA polymerase epsilon (pol ε) is essential for chromosomal replication. A major form of pol ε purified from yeast consists of at least four subunits: Pol2p, Dpb2p, Dpb3p, and Dpb4p.
Campbell, Judith L.   +3 more
core  

Subunit counting in membrane-bound proteins [PDF]

open access: yesNature Methods, 2007
The subunit number and stoichiometry of membrane-bound proteins are difficult to determine without disrupting their membrane environment. Here we describe a single-molecule technique for counting subunits of proteins in live cell membranes by observing bleaching steps of GFP fused to a protein of interest.
Maximilian H. Ulbrich, Ehud Y. Isacoff
openaire   +2 more sources

Modifications in FLAP's second cytosolic loop influence 5‐LOX interaction, inhibitor binding, and leukotriene formation

open access: yesFEBS Letters, EarlyView.
The enzyme 5‐lipoxygenase (5‐LOX) catalyzes the first step in the biosynthesis of leukotrienes (LTs) involved in inflammatory pathophysiology. After cellular stimulation, 5‐LOX translocates to the nucleus, interacting with the 5‐LOX‐activating protein (FLAP) to form LTA4 from arachidonic acid (AA).
Erik Romp   +5 more
wiley   +1 more source

Brucella NyxA and NyxB dimerization enhances effector function during infection

open access: yesFEBS Letters, EarlyView.
Brucella abortus thrives inside cells thanks to the translocation of effector proteins that fine‐tune cellular functions. NyxA and NyxB are two effectors that destabilize the nucleolar localization of their host target, SENP3. We show that the Nyx proteins directly interact with each other and that their dimerization is essential for their function ...
Lison Cancade‐Veyre   +4 more
wiley   +1 more source

Lab-on-a-Chip method uncertanties in determination of high-molecular-weight glutenin subunits [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2013
Polymeric wheat endosperm proteins, especially the high-molecular-weight glutenin subunits (HMW-GS), are probably the most interesting protein fraction giving the essential information about bread-making quality of wheat flour.
Živančev Dragan R.   +4 more
doaj   +1 more source

Architecture of coatomer: Molecular characterization of delta-COP and protein interactions within the complex [PDF]

open access: yes, 1996
Copyright © 2011 by The Rockefeller University Press.Coatomer is a cytosolic protein complex that forms the coat of COP I-coated transport vesicles.
Auerbach, S   +9 more
core   +1 more source

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