Track topics on Twitter Track topics that are important to you
Voltage-dependent anion channel (VDAC) is the major pathway for the transport of ions and metabolites across the mitochondrial outer membrane. Among the three known mammalian VDAC isoforms, VDAC3 is the least characterized, but unique functional roles have been proposed in cellular and animal models. Yet, a high-sequence similarity between VDAC1 and VDAC3 is indicative of a similar pore-forming structure. Here, we conclusively show that VDAC3 forms stable, highly conductive voltage-gated channels that, much like VDAC1, are weakly anion selective and facilitate metabolite exchange, but exhibit unique properties when interacting with the cytosolic proteins α-synuclein and tubulin. These two proteins are known to be potent regulators of VDAC1 and induce similar characteristic blockages (on the millisecond time scale) of VDAC3, but with 10- to 100-fold reduced on-rates and altered α-synuclein blocking times, indicative of an isoform-specific function. Through cysteine scanning mutagenesis, we found that VDAC3's cysteine residues regulate its interaction with α-synuclein, demonstrating VDAC3-unique functional properties and further highlighting a general molecular mechanism for VDAC isoform-specific regulation of mitochondrial bioenergetics.
This article was published in the following journal.
Name: The Journal of general physiology
This work addresses the question of how the Ca sensor protein calmodulin shapes cellular responses to Ca signals. Proteins interacting with affinity tagged calmodulin were captured by rapid (t~7s) pho...
CD59 is a glycosylphosphatidylinositol (GPI)-anchored cell surface inhibitor of the complement membrane attack complex (MAC). We showed previously that CD59 is highly expressed in pancreatic islets bu...
Affinity-based protein profiling has proven to be a powerful method in target identification of bioactive molecules. Here this technology was applied in two photoreactive anticancer inhibitors, arenob...
Cytosolic protein delivery is the premise of developing protein therapeutics acting on intracellular targets. Proteins are generally membrane-impermeable and thus need a carrier such as polymer to fac...
Many biotechnological applications require the simultaneous binding of affinity reagents to non-overlapping target epitopes, the most prominent example being sandwich immunoassays. Typically, affinity...
The main purpose of this trial is to investigate the safety and tolerability of NY-ESO-1（TCR Affinity Enhancing Specific T cell Therapy）in the first-line treatment failed advanced bone ...
This study was designed to evaluate the long term effectiveness of a product used in knee surgery called Affinity™ Membrane.
The main purpose of this trial is to investigate the safety and tolerability of TAEST16001（TCR Affinity Enhancing Specific T cell Therapy）in the multi-line treatment failed advanced so...
To study the effect of Rozerem, a high affinity MT1 and MT2, low affinity 5-HT2B receptor agonist used for insomnia, as a migraine prophylactic agent.
This is a clinical trial for patients with a solid tumor which has come back or may come back or has not gone away after treatment, including the standard treatment we know for these disea...
Abnormal isoform of prion proteins (PRIONS) resulting from a posttranslational modification of the cellular prion protein (PRPC PROTEINS). PrPSc are disease-specific proteins seen in certain human and animal neurodegenerative diseases (PRION DISEASES).
Small proteinaceous infectious particles which resist inactivation by procedures that modify NUCLEIC ACIDS and contain an abnormal isoform of a cellular protein which is a major and necessary component. The abnormal (scrapie) isoform is PrPSc (PRPSC PROTEINS) and the cellular isoform PrPC (PRPC PROTEINS). The primary amino acid sequence of the two isoforms is identical. Human diseases caused by prions include CREUTZFELDT-JAKOB SYNDROME; GERSTMANN-STRAUSSLER SYNDROME; and INSOMNIA, FATAL FAMILIAL.
A specific complex of WNT SIGNALING PATHWAY proteins that mediates the phosphorylation-dependent destruction of cytosolic BETA-CATENIN. The complex is disrupted by cell surface binding of WNT PROTEINS, which allows beta-catenin levels to rise to the point where they migrate to the CELL NUCLEUS and activate transcription.
An indole derivative effective in schizophrenia and other psychoses and possibly useful in the treatment of the aggressive type of undersocialized conduct disorder. Molindone has much lower affinity for D2 receptors than most antipsychotic agents and has a relatively low affinity for D1 receptors. It has only low to moderate affinity for cholinergic and alpha-adrenergic receptors. Some electrophysiologic data from animals indicate that molindone has certain characteristics that resemble those of CLOZAPINE. (From AMA Drug Evaluations Annual, 1994, p283)
A family of endogenous regulatory proteins that associate with RETINOBLASTOMA PROTEIN via a specific high-affinity binding domain. Members of this family of proteins are often found associated with histone-modifying enzymes and protein complexes that regulate gene expression.