Results 61 to 70 of about 708,409 (312)

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

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

Chemical 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., Nikolovski Branislava G., Torbica Aleksandra M., Mastilović Jasna S., Đukić Nevena H.   +4 more
doaj   +1 more source

Architecture of the chromatin remodeler RSC and insights into its nucleosome engagement. [PDF]

, 2019
Eukaryotic DNA is packaged into nucleosome arrays, which are repositioned by chromatin remodeling complexes to control DNA accessibility. The Saccharomyces cerevisiae RSC (Remodeling the Structure of Chromatin) complex, a member of the SWI/SNF chromatin ...
Afonine, Afonine, Allen, Angus-Hill, Ashkenazy, Ashkenazy, Asturias, Badis, Buchan, Buchan, Cairns, Cairns, Campsteijn, Chaban, Chambers, Chatterjee, Clapier, Clapier, Côté, Da, Dechassa, Duan, Dutta, Dürr, El-Gebali, Emsley, Erkina, Filippakopoulos, Goddard, Han, Jones, Jones, Kadoch, Kasten, Klein-Brill, Krietenstein, Kuryan, Leschziner, Leschziner, Li, Liu, Lopéz-Blanco, Mashtalir, Morin, Nagai, Nakane, Ng, Patel, Pettersen, Puig, Saha, Sammak, Schorb, Schubert, Sen, Shim, Sievers, Skiniotis, Smith, Suloway, Söding, Tan, Tsunaka, Ungar, Valencia, Wagner, Wang, Wilson, Xia, Yan, Yang, Ye, Yen, Zhang, Zhang, Zhang, Zheng, Zivanov, Zivanov, Zukin   +79 more
core   +3 more sources

Autoacylation of G Protein α Subunits [PDF]

Journal of Biological Chemistry, 1996
The palmitoylation or S-acylation of at least some G protein alpha subunits is a dynamic process that is regulated in vivo by the activation of associated receptors. Highly purified, myristoylated Gialpha1 and other G protein alpha subunits react spontaneously with palmitoyl-CoA in vitro to form thioesterified proteins.
J A, Duncan, A G, Gilman
openaire   +2 more sources

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

The Molecular Chaperone CCT/TRiC: An Essential Component of Proteostasis and a Potential Modulator of Protein Aggregation

Frontiers in Genetics, 2020
Chaperonin containing tailless complex polypeptide 1 (CCT) or tailless complex polypeptide 1 ring complex (TRiC) is an essential eukaryotic molecular chaperone. It is a multi-subunit oligomer of two rings of eight individual protein subunits.
Julie Grantham
doaj   +1 more source

Exocytosis from permeabilized bovine adrenal chromaffin cells is differently modulated by guanosine 5'-[gamma-thio]triphosphate and guanosine 5'-[beta gamma-imido]triphosphate [PDF]

, 1992
1. In bovine adrenal chromaffin cells made permeable either to molecules less than or equal to 3 kDa with alphatoxin or to proteins less than or equal to 150 kDa with streptolysin O, the GTP analogues guanosine 5'-[beta gamma-imido]triphosphate (p[NH]ppG)
Ahnert-Hilger, G., Gratzl, Manfred, Rosenthal, W., Spicher, K., Stecher, B., Wegenhorst, U.   +5 more
core  

Tissue-specific expression of calcium channels [PDF]

, 1993
The high-voltage-activated calcium channel is a multimeric protein complex containing 1, 2/δ, β, and γ subunits. The 1 subunit is the ion conduction channel and contains the binding sites for calcium channel blockers and toxins.
Biel, Biel, Bosse, Bosse, Catterall, Cavalié, Dascal, De Jongh, De Jongh, De Jongh, Diebold, Dubel, Ellis, Fleckenstein, Flockerzi, Glossmann, Guy, Hartzell, Heinemann, Hofmann, Hofmann, Hullin, Hymel, Jay, Jay, Kim, Kim, Klöckner, Lacerda, Mikami, Mintz, Mori, Mundiña-Weilenmann, Nakayama, Norman, Nunoki, Osterrieder, Perez-Reyes, Perez-Reyes, Pragnell, Regulla, Rotman, Ruth, Röhrkasten, Scino, Singer, Snutch, Striessnig, Striessnig, Tanabe, Tanabe, Tanabe, Tsien, Varadi, Wei, Welling, Welling, Williams, Williams, Yatani   +59 more
core   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source