Results 111 to 120 of about 1,338,778 (300)

Cell aging preserves cellular immortality in the presence of lethal levels of damage. [PDF]

, 2019
Cellular aging, a progressive functional decline driven by damage accumulation, often culminates in the mortality of a cell lineage. Certain lineages, however, are able to sustain long-lasting immortality, as prominently exemplified by stem cells.
Chao, Lin, Proenca, Audrey Menegaz, Qiu, Andrew, Rang, Camilla Ulla, Shi, Chao   +4 more
core   +3 more sources

Identification of functional murine mitochondrial formyl peptides and their effects on myeloid‐derived suppressor cell generation

FEBS Open Bio, EarlyView.
We first identified functional murine mitochondrial N‐formyl peptides (MT‐FPs) and investigated their effects on the in vitro myeloid‐derived suppressor cell (MDSC) generation from bone marrow cells. We demonstrated that MT‐FPs acted directly on bone marrow cells to promote MDSC generation and modulated the polymorphonuclear (PMN)‐MDSC/monocyte (M ...
Miyako Ozawa, Saori Kagoshima, Akira Yamada   +2 more
wiley   +1 more source

Hijacking Complement Regulatory Proteins for Bacterial Immune Evasion

Frontiers in Microbiology, 2016
The human complement system plays an important role in the defense against invading pathogens, inflammation and homeostasis. Invading microbes, such as bacteria, directly activate the complement system resulting in the formation of chemoattractants and ...
Elise Sofie Hovingh, Elise Sofie Hovingh, Bryan van den Broek, Ilse Jongerius, Ilse Jongerius   +4 more
doaj   +1 more source

Bacterial Heat Shock Protein Activity

JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH, 2016
Bacteria are exposed to different types of stress in their growth conditions. They have developed appropriate responses, modulated by the re-modeling of protein complexes and by phosphorylation dependent signal transduction systems, to adapt and to survive in a variety range of nature.
Maleki, F., Khosravi, A., Nasser, A., Taghinejad, H., Azizian, M.   +4 more
openaire   +3 more sources

Microtubules in Bacteria: Ancient Tubulins Build a Five-Protofilament Homolog of the Eukaryotic Cytoskeleton [PDF]

, 2011
Microtubules play crucial roles in cytokinesis, transport, and motility, and are therefore superb targets for anti-cancer drugs. All tubulins evolved from a common ancestor they share with the distantly related bacterial cell division protein FtsZ, but ...
A Briegel, A Marchler-Bauer, A. J Koster, A. J Martin-Galiano, Alasdair W. McDowall, B Miroux, C Jenkins, C Suloway, C. A Sontag, C. A Sontag, C. H Aylett, C. V Iancu, D Bermudes, D Nicastro, D Schlieper, D. N Mastronarde, D. N Mastronarde, D. P Devos, E Nogales, E Nogales, E Nogales, E Nogales, E. F Pettersen, E. G Reynaud, E. I Tocheva, F Amat, Giulio Petroni, Grant J. Jensen, H Erickson, H Sui, H. P Erickson, J Cope, J Lowe, J. B Heymann, J. D Thompson, J. D Wisotzkey, J. O McInerney, J. R McIntosh, K. C Lee, K. S Makarova, K. T Tokuyasu, K. T Tokuyasu, L Gan, L Ni, L. A Amos, L. A Amos, Linda Amos, M Pilhofer, M Pilhofer, M Pilhofer, M Takeda, M Wagner, M. S Ladinsky, M. S Ladinsky, Mark S. Ladinsky, Martin Pilhofer, P Forterre, P. J Keeling, R. I Koning, S Vaughan, S. K Dutcher, S. Q Zheng, T Muller, T. K Attwood, W Ludwig, W. F Tivol, Z Li   +66 more
core   +5 more sources

Chameleon sequences reveal structural effects in proteins representing micelle‐like distribution of hydrophobicity

FEBS Open Bio, EarlyView.
Amino acids sequence of two different proteins with the same sequence (chameleon sequence—black boxes) represent in 3D structure of the proteins different secondary structures: HHHH—helical and BBB—Beta‐structural. The chains folded in water environment adopt different III‐order structures in which the chameleon fragments appear to adopt similar status
Irena Roterman, Katarzyna Stapor, Leszek Konieczny, Krzysztof Gądek, Piotr Nowakowski   +4 more
wiley   +1 more source

Automatic selection of representative proteins for bacterial phylogeny

BMC Evolutionary Biology, 2005
Background Although there are now about 200 complete bacterial genomes in GenBank, deep bacterial phylogeny remains a difficult problem, due to confounding horizontal gene transfers and other phylogenetic "noise".
Goldberg David, Bern Marshall
doaj   +1 more source

Screening and epitope characterization of Nidogen‐2‐specific nanobodies

FEBS Open Bio, EarlyView.
Camel immunization and phage display were employed to generate high‐affinity VHH nanobodies against Nidogen‐2. After library construction, biopanning, ELISA screening, sequencing, and recombinant expression, selected nanobodies were purified and characterized, leading to the preliminary exploration of a nanobody‐based sandwich ELISA for specific ...
Jianchuan Wen, Qianqian Cui, Zhongyun Lan, Yingjun Wang, Shuaiying Zhao, Wenxuan Feng, Yunfeng Liu, Qiting Huang, Dongna Zhang, Jianfeng Xu   +9 more
wiley   +1 more source

Proteasomal degradation of intracellularly expressed Amblyomin‐X limits suicide gene therapy potential in melanoma cells

FEBS Open Bio, EarlyView.
This study explores the feasibility of expressing the antitumoral protein Amblyomin‐X through a suicide gene therapy approach and investigates its intracellular fate after gene delivery. Although the gene is efficiently expressed, melanoma cells rapidly degrade the Amblyomin‐X protein via proteasome activity.
Victor Dal Posolo Cinel, Carlos DeOcesano Pereira, Aline Ramos Maia Lobba, Melissa Regina Fessel, Ana Marisa Chudzinski‐Tavassi   +4 more
wiley   +1 more source

Bacterial-based membrane protein production

Biochimica et Biophysica Acta (BBA) - Molecular Cell Research, 2014
Escherichia coli is by far the most widely used bacterial host for the production of membrane proteins. Usually, different strains, culture conditions and production regimes are screened for to design the optimal production process. However, these E. coli-based screening approaches often do not result in satisfactory membrane protein production yields.
Schlegel, Susan, Hjelm, Anna, Baumgarten, Thomas, Vikström, David, de Gier, Jan-Willem   +4 more
openaire   +2 more sources