6216 Results for: "4-Methylbenzyl+isothiocyanate&pageNo=31&view=easy"

Supplier: LABCONCO

These portable systems provide user protection by keeping powders and particulates contained during weighing procedures. The built-in blower and HEPA filter are mounted in the upper plenum to save space, and the enclosures have low installation costs and require no outside ducting. Systems also provide quiet operation as low as 45 dBA, depending on face velocity.

Supplier: Bioss

Ubiquitin like proteins fall into two classes: the first class, ubiquitin-like modifiers (UBLs) function as modifiers in a manner analogous to that of ubiquitin. Examples of UBLs are SUMO, Rub1 (also called Nedd8), Apg12 and Hub1. Proteins of the second class include Parkin, RAD23 and DSK2, are designated ubiquitin domain proteins (UDPs). These proteins contain domains that are related to ubiquitin but are otherwise unrelated to each other. In contrast to UBLs, UDPs are not proteolytically processed or conjugated to other proteins. Rub1 and the corresponding human homolog NEDD8 are activated by the E1 ubiquitin activating enzyme UBA2, that forms isopeptide linkages between thio esters. NEDD8 shows 80% homology to ubiquitin. The best known targets of Rub1 modification are members of the cullin family. Cullins are subunits of an E3 ubiquitin ligase complex called the Skp1 /Cul1/Cdc53 F box (SCF). The SCF promotes transfer of ubiquitin from a ubiquitin conjugating enzyme (E2) to the target protein. Rub1 modification may regulate SCF function or localization.

Supplier: Brand

The Transferpette® S air displacement pipette allows you to work efficiently and ergonomically with both small and large volumes. Due to its perfect ergonomics, the Transferpette® S provides a comfortable grip in any hand position, whether you are right- or left-handed, or have big or small hands.

Supplier: FRISTADS KANSAS

These overalls with elasticated braces are made of different fabrics. The water-repellent fluorescent material in manufactured from 80% polyester and 20% cotton. The other parts are made of 65% polyester and 35% cotton which is slightly brushed on reverse. Reinforcements are made of 100% polyamide.

Supplier: ERLAB CAPTAIRE

The Captair® Smart filtering chemical storage cabinets are designed with a simple and innovative way of communication. Smart Technology uses simple light to show that the unit is operating safely so the user can focus his attention on what is most important: his work. Smart Technology enables visual light to indicate the hood status. A simple light pattern indicates if the air flow is compromised, if there is a fan failure, a filter breakthrough or if the doors are open.
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Supplier: Biosepar

ParasiTrap® enables detection of worm eggs, protozoa and larvae. The ParasiTrap® is a transport and testing system for the parasitological examination of stools in human and veterinary medicine. It is a completely closed system with 4 simple steps to make the diagnosis: 1. load tube with sample; 2. add solvent and stain; 3. filter and concentrate; 4. examine under microscope. It was developed to facilitate the unpleasant task of processing infectious stools in laboratory environments, reduce risk of infection and ensure the best possible yield of parasites. The closed system also allows macroscopic diagnostic procedures to be performed where necessary. This diagnostics concept fully complies with the modern quality management criteria of national and international guidelines (EU, CDC, WHO, BGA, DPG). All systems are free of merthiolate and ether. The ParasiTrap® AF-System contains a filled processing and transport tube I (with Medium AF) and the processing tube II with integrated stainless steel filter system. Accessories: separation medium B, staining solution medium C, Pasteur pipettes (disposable), spoons and cotton wool sticks. Additional screw caps for processing tube II.

Supplier: VACUUBRAND

Package for fine vacuum control with CVC 3000 and VACUUVIEW extended for KF DN 16, with in-line isolation valve VV-B 15C, T-piece, hose nozzle DN 10 and connecting parts, certification (NRTL): C/US 100-230 V/50-60 Hz, plug CEE/CH/UK/US/AUS 1 * 1 items

Supplier: VWR Collection

VWR® has expanded the VWR® carboy features and benefits by offering the Versatile Cap, Versatile Barb and state-of-the-art Spigot technology. These three components complement a wide array of applications supported by the VWR® Carboy. The leakproof cap insert with replaceable gasket enable users to quickly change the top connector of each carboy to match the application needs. Versatile Cap is stackable and is offered in both 83 mm (compatible with most industry carboys) and a 120 mm extra wide-mouth version that fits exclusively on VWR® 20 L and 40 L extra wide mouth carboys. To see homogenisation of solutions, closed adapter inserts with a clear window are available. Quick connect options are also a part of the many capabilities of this Versatile Cap technology. This includes quick-connect port combinations of two, three, and four. For bottom tubulation, Versatile Barb is used to replace the spigot and support flexibility in drainage, connection to a pump or automated equipment, or connection to a filling bell. Sanitary fitting connector is also available in order to enable the carboy to be used as a supply reservoir to a larger system.

Supplier: Thermo Scientific

TSX™ core series is engineered for reliability and designed for everyday use. When choosing a ULT freezer, protecting your valuable samples is the top priority.  The Thermo Scientific™ TSX™ core series ULT freezers are designed with this in mind, offering reliable sample protection even in the busiest laboratory environments.

Supplier: Bioss

The LIN-12/Notch family of transmembrane receptors plays a central role in development by regulating cell fate and establishing boundaries of gene expression. Notch Signalling activates the Hairy/Enhancer of split (HES) genes, which encode basic helix-loop-helix (bHLH) transcriptional repressors that are critical for directing embryonic patterning and development. The Hairy-related transcription factors (HRTs) comprise a subclass of bHLH proteins that exhibit structural similarity with the HES proteins and include HRT1, HRT2 and HRT3. The HRT family (also designated Hesr, Hey, CHF and Gridlock) contain a bHLH domain, an Orange domain and a novel YRPW domain, which is absent in HRT3. The Hairy-related genes map to human chromosomes 8q21, 6q21 and 1p34.3 for HRT1, HRT2 and HRT3, respectively, and are downstream targets for Notch Signalling. HRT1 is expressed in the somitic mesoderm, central nervous system, kidney, heart, nasal epithelium and limb buds in murine embryos as well as in adult tissues. It has altered expression in many breast, lung and kidney tumours. Like HRT1, HRT2 and HRT3 are also expressed in developing somites, heart and nervous system.

Supplier: Bioss

Composed of more than ten subunits, the anaphase-promoting complex (APC) acts in a cell-cycle dependent manner to promote the separation of sister chromatids during the transition between metaphase and anaphase in mitosis. APC, or cyclosome, accomplishes this progression through the ubiquitination of mitotic cyclins and other regulatory proteins that are targeted for destruction during cell division. APC is phosphorylated, and thus activated, by protein kinases Cdk1/cyclin B and polo-like kinase (Plk). APC is under tight control by a number of regulatory factors, including CDC20, CDH1 and MAD2. Specifically, CDC20 and CDH1 directly bind to and activate the cyclin-ubiquitination activity of APCs. In contrast, MAD2 inhibits APC by forming a ternary complex with CDC20 and APC, thus preventing APC activation. APC10 contains a Doc1 homology domain, which is a beta-sandwich structure common to many other putative E3 ubiquitin ligases. APC10 binds to core APC subunits throughout the cell cycle. Specifically, APC10 binds to the C-terminus of CDC27/APC3. During mitosis, APC10 is localised in centrosomes and mitotic spindles. APC10 also localizes to kinetochores from prophase to anaphase, and to the midbody in telophase and cytokinesis.

Supplier: 3M MEDICAL

The Zeta Plus™ EXT series media extends depth filtration capacity and protection of downstream membranes thereby extending filter life and lowering overall filtration costs.

Supplier: FRISTADS KANSAS

These overalls consist of different fabric combinations. The fluorescent material is water repellent and manufactured from 80% polyester and 20% cotton. The other parts are made of 65% polyester and 35% cotton with a soft nap on reverse. The reinforcement is made from 100 % polyamide.

Supplier: Brand

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Supplier: HAMILTON BONADUZ

The 700 series syringe is the original hand-fitted Hamilton syringe. This series of syringes is ideal for dispensing volumes from 0,5 to 500 µl. The stainless steel plunger is manufactured to fit the glass barrel with a tolerance smaller than 100 millionths of an inch, resulting in unsurpassed syringe life. Each syringe is manufactured to achieve the highest level of accuracy and precision possible.

Supplier: GRANT INSTRUMENTS

Grant low temperature circulators provide a source of precision cooling for most low temperature applications.

Supplier: PHOENIX BIOMEDICAL

Clear PS. Ideal for colony counting.

Supplier: Portwest

Portwest WX3 contemporary workwear is designed to the highest standards and offer a solution for everyday activity and working environments. Constructed with cutting edge fabrics giving superior abrasion resistance and exceptional all-day comfort. The WX3 work trousers are made from durable poly-cotton canvas fabric and includes triple stitched seams and stretch panelling providing excellent comfort and flexibility.

Supplier: CONSORT

Robust, dust- and splash-proof benchtop meters for several parameters.

Supplier: TOSOH BIOSCIENCE

SkillPak 1 and 5 ml columns are designed for fast method development, resin screening or sample concentration. Pre-packed with TOYOPEARL®, TSKgel® or Ca++Pure-HA™ process chromatography media, these columns offer superior separation of biomelocules, such as monoclonal antibodies, proteins and oligonucleotides. SkillPak 50 and 200 ml pre-packed columns are the best solution for seamless scale up of methods developed on SkillPak 1 and 5.

Supplier: Sartorius Balances

The Cubis® II laboratory balances are modular, providing choice between applications and configurations that best suit the users' needs. These balances can be configured at the level of display, draftshields, software applications and hardware functions. The Cubis® II range of high-capacity micro balances with a maximum load between 32 and 111 g and a readability between 0,001 mg and 0,002 mg provide the ideal choice for a broad range of applications.

Supplier: Bioss

This gene encodes coagulation factor XII which circulates in blood as a zymogen. This single chain zymogen is converted to a two-chain serine protease with an heavy chain (alpha-factor XIIa) and a light chain. The heavy chain contains two fibronectin-type domains, two epidermal growth factor (EGF)-like domains, a kringle domain and a proline-rich domain, whereas the light chain contains only a catalytic domain. On activation, further cleavages takes place in the heavy chain, resulting in the production of beta-factor XIIa light chain and the alpha-factor XIIa light chain becomes beta-factor XIIa heavy chain. Prekallikrein is cleaved by factor XII to form kallikrein, which then cleaves factor XII first to alpha-factor XIIa and then to beta-factor XIIa. The active factor XIIa participates in the initiation of blood coagulation, fibrinolysis, and the generation of bradykinin and angiotensin. It activates coagulation factors VII and XI. Defects in this gene do not cause any clinical symptoms and the sole effect is that whole-blood clotting time is prolonged.

Supplier: OHAUS

A range of four-place balances incorporate touch screen, advanced weighing and touch-free proximity sensor technologies. The easy to use control unit can be mounted on the base, above the base on an optional column, on a wall, or remotely (up to a distance of 3 metres with an optional cable). The touch screen display, with universal icons and informative prompts, simplifies set-up functions and basic operation. The operator has the added choice to assign the use of any of the four proximity sensors for hands-free operation of print, zero, tare, calibrate, automatic draft shield door (left or right) or draft shield light. The hands-free operation enables the user to minimise/eliminate any possible contamination of the control keypad - particularly important for weighing of sensitive materials. The balances have multiple application modes for basic weighing to SQC applications together with short stabilisation times and optimised performance specifications.

Supplier: Bioss

The LIN-12/Notch family of transmembrane receptors plays a central role in development by regulating cell fate and establishing boundaries of gene expression. Notch Signalling activates the Hairy/Enhancer of split (HES) genes, which encode basic helix-loop-helix (bHLH) transcriptional repressors that are critical for directing embryonic patterning and development. The Hairy-related transcription factors (HRTs) comprise a subclass of bHLH proteins that exhibit structural similarity with the HES proteins and include HRT1, HRT2 and HRT3. The HRT family (also designated Hesr, Hey, CHF and Gridlock) contain a bHLH domain, an Orange domain and a novel YRPW domain, which is absent in HRT3. The Hairy-related genes map to human chromosomes 8q21, 6q21 and 1p34.3 for HRT1, HRT2 and HRT3, respectively, and are downstream targets for Notch Signalling. HRT1 is expressed in the somitic mesoderm, central nervous system, kidney, heart, nasal epithelium and limb buds in murine embryos as well as in adult tissues. It has altered expression in many breast, lung and kidney tumours. Like HRT1, HRT2 and HRT3 are also expressed in developing somites, heart and nervous system.

Supplier: asecos

Fireproof safety cabinets, classified type 90 (fire resistant up to 90 minutes), safe, durable, robust and convenient with transport base and bicoloured cabinet design. The PEGASUS line is nearly identical to the CLASSIC line, but with integrated AGT (one handed operation for double door cabinets) and integrated TSA (door open arrest system and automatic door closing).

Supplier: Bioss

This gene encodes coagulation factor XII which circulates in blood as a zymogen. This single chain zymogen is converted to a two-chain serine protease with an heavy chain (alpha-factor XIIa) and a light chain. The heavy chain contains two fibronectin-type domains, two epidermal growth factor (EGF)-like domains, a kringle domain and a proline-rich domain, whereas the light chain contains only a catalytic domain. On activation, further cleavages takes place in the heavy chain, resulting in the production of beta-factor XIIa light chain and the alpha-factor XIIa light chain becomes beta-factor XIIa heavy chain. Prekallikrein is cleaved by factor XII to form kallikrein, which then cleaves factor XII first to alpha-factor XIIa and then to beta-factor XIIa. The active factor XIIa participates in the initiation of blood coagulation, fibrinolysis, and the generation of bradykinin and angiotensin. It activates coagulation factors VII and XI. Defects in this gene do not cause any clinical symptoms and the sole effect is that whole-blood clotting time is prolonged.

Supplier: Bioss

c-Jun NH2-terminal kinases (JNKs) are distant members of the MAP kinase family (1). JNK1 is activated by dual phosphorylation at a Thr-Pro-Tyr motif in response to ultraviolet (UV) light, and it functions to phosphorylate c-Jun at amino terminal serine regulatory sites, Ser-63 and Ser-73, resulting in transcriptional activation (2-5). Two additional JNK family members have been identified as JNK2 and JNK3 (3). JIP-1 (for JNK interacting protein-1) has been identified as a cytoplasmic inhibitor of JNK that retains JNK in the cytoplasm, thereby inhibiting JNK-regulated gene expression. Evidence suggests that JNK1 and JNK2 bind to JIP-1 with greater affinity than to ATF-2 and c-Jun, which are targets of the JNK signaling pathway. JIP-1 contains an amino terminal JNK binding domain and a carboxy terminal SH3 domain. ATF-2 and c-Jun also contain the JNK binding domain and are thought to compete with JIP-1 for JNK binding (6). Multiple splice variants if JIP-1, including JIP-1b, JIP-1c (also designated islet-brain 1 or IB-1), JIP-2a, JIP-2b and JIP-3, have been identified in brain (7).

Supplier: Bioss

c-Jun NH2-terminal kinases (JNKs) are distant members of the MAP kinase family (1). JNK1 is activated by dual phosphorylation at a Thr-Pro-Tyr motif in response to ultraviolet (UV) light, and it functions to phosphorylate c-Jun at amino terminal serine regulatory sites, Ser-63 and Ser-73, resulting in transcriptional activation (2-5). Two additional JNK family members have been identified as JNK2 and JNK3 (3). JIP-1 (for JNK interacting protein-1) has been identified as a cytoplasmic inhibitor of JNK that retains JNK in the cytoplasm, thereby inhibiting JNK-regulated gene expression. Evidence suggests that JNK1 and JNK2 bind to JIP-1 with greater affinity than to ATF-2 and c-Jun, which are targets of the JNK signaling pathway. JIP-1 contains an amino terminal JNK binding domain and a carboxy terminal SH3 domain. ATF-2 and c-Jun also contain the JNK binding domain and are thought to compete with JIP-1 for JNK binding (6). Multiple splice variants if JIP-1, including JIP-1b, JIP-1c (also designated islet-brain 1 or IB-1), JIP-2a, JIP-2b and JIP-3, have been identified in brain (7).

Supplier: Bioss

Composed of more than ten subunits, the anaphase-promoting complex (APC) acts in a cell-cycle dependent manner to promote the separation of sister chromatids during the transition between metaphase and anaphase in mitosis. APC, or cyclosome, accomplishes this progression through the ubiquitination of mitotic cyclins and other regulatory proteins that are targeted for destruction during cell division. APC is phosphorylated, and thus activated, by protein kinases Cdk1/cyclin B and polo-like kinase (Plk). APC is under tight control by a number of regulatory factors, including CDC20, CDH1 and MAD2. Specifically, CDC20 and CDH1 directly bind to and activate the cyclin-ubiquitination activity of APCs. In contrast, MAD2 inhibits APC by forming a ternary complex with CDC20 and APC, thus preventing APC activation. APC10 contains a Doc1 homology domain, which is a beta-sandwich structure common to many other putative E3 ubiquitin ligases. APC10 binds to core APC subunits throughout the cell cycle. Specifically, APC10 binds to the C-terminus of CDC27/APC3. During mitosis, APC10 is localised in centrosomes and mitotic spindles. APC10 also localizes to kinetochores from prophase to anaphase, and to the midbody in telophase and cytokinesis.

Supplier: MOTIC

Microscope for basic work in biology life science. Fixed Koehler set-up, rackless stage, nice plan achromatic optics. The Motic BA 210 is robust and ready to use with pre-installed set-up of optics and halogen illumination, interchangeable with a LED module (LED to be purchased separately).