Results 111 to 120 of about 261,647 (345)

Rab Family of GTPases [PDF]

open access: yes, 2015
Rab proteins represent the largest branch of the Ras-like small GTPase superfamily and there are 66 Rab genes in the human genome. They alternate between GTP- and GDP-bound states, which are facilitated by guanine nucleotide exchange factors (GEFs) and GTPase-activating proteins (GAPs), and function as molecular switches in regulation of intracellular ...
M. Caleb Marlin, Guangpu Li
openaire   +3 more sources

A CMTM6 Nanobody Overcomes EGFR‐TKI Resistance in Non‐Small Cell Lung Cancer

open access: yesAdvanced Science, EarlyView.
Overcoming EGFR‐TKI resistance remains a critical challenge in NSCLC treatment. This study identifies CMTM6 as a key regulator of EGFR stability and demonstrates that a novel anti‐CMTM6 nanobody disrupts the CMTM6‐EGFR interaction. Targeting CMTM6 restores EGFR degradation, suppresses tumor growth, and confers therapeutic benefit in both CDX and PDX ...
Lu Xia   +18 more
wiley   +1 more source

Monitoring of dynamin during the Toxoplasma gondii cell cycle [PDF]

open access: yes, 2016
The obligate intracellular protozoan parasite Toxoplasma gondii actively invades virtually all warm-blooded nucleated cells. This process results in a non-fusogenic vacuole, inside which the parasites replicate continuously until egress signaling is ...
Attias, Marcia   +4 more
core   +1 more source

H3K36me3‐Guided m6A Modification of Oncogenic L1CAM‐AS1 Drives Macrophage Polarization and Immunotherapy Resistance in Hepatocellular Carcinoma

open access: yesAdvanced Science, EarlyView.
L1CAM‐AS1 is identified as a novel H3K36me3‐guided, m6A‐modified long noncoding RNA (lncRNA) in hepatocellular carcinoma (HCC) cells. L1CAM‐AS1 stabilizes RAN protein, enhances M2 macrophages‐released CCL5‐induced nuclear import of RELA, activates the NF‐κB signaling, up‐regulates CCL2 expression and secretion from HCC cells, and enhances M2 ...
Teng Wang   +6 more
wiley   +1 more source

The Iron-Type Nitrile Hydratase Activator Protein Is A GTPase [PDF]

open access: yes, 2017
The Fe-type nitrile hydratase activator protein from Rhodococcus equi TG328-2 (ReNHase TG328-2) was successfully expressed and purified. Sequence analysis and homology modeling suggest that it is a G3E P-loop guanosine triphosphatase (GTPase) within the ...
Bennett, Brian   +3 more
core   +1 more source

Regulation of intracellular cyclic GMP concentration by light and calcium in electropermeabilized rod photoreceptors. [PDF]

open access: yes, 1994
This study examines the regulation of cGMP by illumination and by calcium during signal transduction in vertebrate retinal photoreceptor cells. We employed an electropermeabilized rod outer segment (EP-ROS) preparation which permits perfusion of low ...
Coccia, V J, Cote, Rick H.
core   +2 more sources

Rab1 GTPases as oncogenes

open access: yesAging, 2015
Rab1 is the founding member of the Rab small GTPase family, which is well known to mediate membrane trafficking between the endoplasmic reticulum (ER) and Golgi apparatus [1]. It is a highly conserved protein with two different isoforms, Rab1A and Rab1B in mammals, and predominantly localized on the membrane of endoplasmic reticulum (ER) and Golgi ...
Hui Yun Wang   +3 more
openaire   +3 more sources

Nanoscale Curvature Regulates YAP/TAZ Nuclear Localization Through Nuclear Deformation and Rupture

open access: yesAdvanced Science, EarlyView.
This study uses experiments and biophysical modeling to examine the response and adaptation of cells to nanoscale topography of surfaces. It is shown that cytoskeletal assembly and nuclear localization of transcription regulatory factors such as yes‐associated protein (YAP) and transcriptional coactivator with PDZ‐binding motif (TAZ) can be tuned by ...
Emmet A. Francis   +7 more
wiley   +1 more source

Divergent Evolution of Legionella RCC1 Repeat Effectors Defines the Range of Ran GTPase Cycle Targets

open access: yesmBio, 2020
Legionella pneumophila governs its interactions with host cells by secreting >300 different “effector” proteins. Some of these effectors contain eukaryotic domains such as the RCC1 (regulator of chromosome condensation 1) repeats promoting the activation
A. Leoni Swart   +11 more
doaj   +1 more source

The gateway to chloroplast: re-defining the function of chloroplast receptor proteins [PDF]

open access: yes, 2012
Chloroplast biogenesis often requires a tight orchestration between gene expression (both plastidial and nuclear) and translocation of similar to 3000 nuclear-encoded proteins into the organelle.
Bölter, Bettina   +2 more
core   +1 more source

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