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M\\u00F6dinger+Elektro-Gro\\u00DFhandelshaus
Supplier:
Enzo Life Sciences
Description:
The proteasome is widely recognised as the central enzyme of non-lysosomal protein degradation. It is responsible for intracellular protein turnover and it is also critically involved in many regulatory processes and, in higher eukaryotes, in antigen processing. The 26S proteasome is the key enzyme of the ubiquitin/ATP-dependent pathway of protein degradation. The catalytic core of this unusually large (2000kDa, 450Ã… in length) complex is formed by the 20S proteasome, a barrel shaped structure shown by electron microscopy to comprise of four rings each containing seven subunits.
Based on sequence similarity, all fourteen 20S proteasomal subunit sequences may be classified into two groups, α and β, each group having distinct structural and functional roles. The α-subunits comprise the outer rings and the β-subunits the inner rings of the 20S proteasome. Observations of the eukaryotic proteasome and analysis of subunit sequences indicate that each ring contains seven different subunits (α7β7β7α7) with a member of each sub-family represented in each particle. Each subunit is located in a unique position within the α- or β-rings. 120S Proteasomes degrade only unfolded proteins in an energy-independent manner, whereas 26S proteasomes degrade native and ubiquitinylated proteins in an ATP-dependent manner. The native protein substrates are recognised by subunits, some with ATP binding sites, of the outer 19S caps of the 26S proteasome. 
Catalog Number:
(10251-130)
Supplier:
Bioss
Description:
The ProSAP family of proteins contain many protein-protein interaction domains and serve as scaffolding mediators within the post-synaptic density (PSD) of excitatory brain synapses. The PSD is an electron-dense structure underneath the post-synaptic plasma membrane of excitatory synapses that anchors and clusters glutamate receptors opposite to the pre-synaptic neurotransmitter release site. Shank proteins contain PDZ modular domains that coordinate the synaptic localization of ion channels, receptors, signaling enzymes, and cell adhesion molecules. The PDZ domain mediates protein-protein interactions via the recognition of a conserved sequence motif at the C-terminus of their target protein(s). ProSAPiP1 (proline rich synapse associated protein interacting protein 1) is a 673 amino acid protein that interacts with the PDZ domain of Shank 3. ProSAPiP1 expression is brain-specific with highest expression within the cerebellum, hippocampus and cerebral cortex.
Catalog Number:
(10251-110)
Supplier:
Bioss
Description:
The ProSAP family of proteins contain many protein-protein interaction domains and serve as scaffolding mediators within the post-synaptic density (PSD) of excitatory brain synapses. The PSD is an electron-dense structure underneath the post-synaptic plasma membrane of excitatory synapses that anchors and clusters glutamate receptors opposite to the pre-synaptic neurotransmitter release site. Shank proteins contain PDZ modular domains that coordinate the synaptic localization of ion channels, receptors, signaling enzymes, and cell adhesion molecules. The PDZ domain mediates protein-protein interactions via the recognition of a conserved sequence motif at the C-terminus of their target protein(s). ProSAPiP1 (proline rich synapse associated protein interacting protein 1) is a 673 amino acid protein that interacts with the PDZ domain of Shank 3. ProSAPiP1 expression is brain-specific with highest expression within the cerebellum, hippocampus and cerebral cortex.
Supplier:
Electron Microscopy Sciences
Description:
Bone Rongeur. Available either straight or slightly curved. Made from stainless steel with a polished finish.
Catalog Number:
(102091-012)
Supplier:
Electron Microscopy Sciences
Description:
Cuts to four micron thickness without crumbling and cracking .
Supplier:
Electron Microscopy Sciences
Supplier:
Electron Microscopy Sciences
Catalog Number:
(100493-278)
Supplier:
Electron Microscopy Sciences
Description:
A wide tipped pen, designed for use with paraffin sections
Catalog Number:
(101410-910)
Supplier:
Electron Microscopy Sciences
Description:
Hematoxylin solution is a prepared, ready-to-use, high quality staining solutions for standard staining procedures used by the biological staining commission and the armed forces institute of pathology.
Supplier:
Electron Microscopy Sciences
Description:
These organizers offer a protected center work area with stylist appearance.
Catalog Number:
(10797-176)
Supplier:
Prosci
Description:
CD155 is a Type I transmembrane glycoprotein in the immunoglobulin superfamily. Commonly known as Poliovirus Receptor (PVR) due to its involvement in the cellular poliovirus infection in primates, CD155's normal cellular function is in the establishment of intercellular adherens junctions between epithelial cells.
CD155/PVR was originally isolated based on its ability to mediate polio virus attachment to host cells. The fulllength (or CD155 alpha isoform) is synthesized as a 417 amino acid (aa) precursor that contains a 20 aa signal sequence, a 323 aa extracellular region, a 24 aa TM segment and a 50 aa cytoplasmic tail. The extracellular region contains one N terminal V type and two C2 type Ig like domains. CD155 is a transmembrane protein with 3 extracellular immunoglobulin-like domains, D1-D3, where D1 is recognized by the virus. Low resolution structures of CD155 complexed with poliovirus have been obtained using electron microscopy while a high resolution structures of theectodomain D1 and D2 of CD155 were solved by x-ray crystallography.
Supplier:
Electron Microscopy Sciences
Description:
Millonig’s phosphate buffered formalin as modified by Carson, Martin and Lynn, by using 4% formalin in 0.1M sodium phosphate monobasic with sodium hydroxide to pH 7.2
Catalog Number:
(10461-730)
Supplier:
Bioss
Description:
RNA-binding protein implicated in numerous RNA metabolic processes. Catalyzes the phosphorolysis of single-stranded polyribonucleotides processively in the 3'-to-5' direction. Mitochondrial intermembrane factor with RNA-processing exoribonulease activity. Component of the mitochondrial degradosome (mtEXO) complex, that degrades 3' overhang double-stranded RNA with a 3'-to-5' directionality in an ATP-dependent manner. Required for correct processing and polyadenylation of mitochondrial mRNAs. Plays a role as a cytoplasmic RNA import factor that mediates the translocation of small RNA components, like the 5S RNA, the RNA subunit of ribonuclease P and the mitochondrial RNA-processing (MRP) RNA, into the mitochondrial matrix. Plays a role in mitochondrial morphogenesis and respiration; regulates the expression of the electron transport chain (ETC) components at the mRNA and protein levels. In the cytoplasm, shows a 3'-to-5' exoribonuclease mediating mRNA degradation activity; degrades c-myc mRNA upon treatment with IFNB1/IFN-beta, resulting in a growth arrest in melanoma cells. Regulates the stability of specific mature miRNAs in melanoma cells; specifically and selectively degrades miR-221, preferentially. Plays also a role in RNA cell surveillance by cleaning up oxidized RNAs. Binds to the RNA subunit of ribonuclease P, MRP RNA and miR-221 microRNA.
Catalog Number:
(103301-826)
Supplier:
Electron Microscopy Sciences
Description:
The one glue we all know and have used.
Catalog Number:
(RL010-0302)
Supplier:
Rockland Immunochemical
Description:
Produced through a multi-stage process that includes delipidation, salt fractionation, ion-exchange chromatography, gel filtration, and affinity chromatography. No contaminating proteins are observed when assayed at a protein concentration of 20mg/mL against anti-whole serum or anti-fragment specific antisera. All immunoglobulin fragments are prepared from highly purified, whole molecules subject to enzymatic digestion.
Supplier:
Beckman Coulter
Description:
If you need an approachable instrument for sorting multiple populations to generate high quality material for downstream assays, the CytoFLEX SRT benchtop cell sorter is quick to learn and easy to operate. This extension of the CytoFLEX platform is built on the same optical features as the flow cytometer, but equally important, it continues to adhere to the principles that made multicolor applications accessible to many biomedical research, Core research, Pharma and Biotechs.
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 is still displayed and you need assistance, please call us at 1-800-932-5000.
Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the
is still displayed and you need assistance, please call us at 1-800-932-5000.
This product is marked as restricted and can only be purchased by approved Shipping Accounts. If you need further assistance, email VWR Regulatory Department at Regulatory_Affairs@vwr.com
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