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Bio-Rad Laboratories, Wyatt Technology, Invitrogen, Thermo Fisher Scientific, AnaSpec

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Bio-Rad Laboratories launched three new ProteinChip SELDI system qualification and calibration kits.
 
The ProteinChip OQ kit includes tests for the evaluation of nine operational specifications for sensitivity, resolution, and mass accuracy. It also includes a detector calibration test to automatically adjust and stabilize the detectors’ output over time.
 
The ProteinChip System Check kit verifies compliance to four operations specifications for sensitivity and resolution. It also includes tests for detector calibration. The ProteinChip Detector Calibration kit performs detector calibration “to automatically adjust detector voltage … optimizing reproducibility over time,” the company said in a statement.
 

 
Wyatt Technology this week introduced its Calypso automated protein association and aggregation system for the rapid, quantitative non-destructive characterization of protein-protein interactions in native solution using composition-gradient multi-angle light scattering.
 
According to the company, CG-MALS does not require proteins to be altered from their natural state and is a “sensitive and precise method for the measurement of complexes and aggregates through the absolute determination of molar mass.”
 
Calypso consists of hardware and dedicated software for automating CG-MALS measurements, Zimm plots, and dn/dc determinations, Wyatt said in a statement. Sample mixing, dilution, and delivery are automated by computer-controlled syringe pumps, and data acquisition and analysis is controlled by intuitive software.
 

 
Invitrogen this week introduced the TC-Flash Analysis Detection kits for in-gel detection of protein expression. Gel staining and handling is not required after electrophoresis with the kits, which use the green fluorescent Flash-EDT2 reagent to directly label tetracysteine-tagged proteins.
 
According to Invitrogen, the kits’ “simple protocol permits the use of crude or purified cell lysate and requires only 13 minutes of preparation time to stain proteins prior to gel loading.”
 

 
Thermo Fisher Scientific launched this week the Atlas Chromatography Data System add-on instrument control software for the Accela High Speed Liquid Chromatography system.
 
Atlas CDS system provides integrated instrument control, digital data acquisition, chromatography data processing and reporting. The system provides a “highly scalable client/server environment for laboratory LAN and WAN networks in pharmaceutical drug development, discovery, QA/QC laboratories, academia, and the food and beverage safety industries,” Thermo Fisher said in a statement. It is designed as a multi-user, multi-instrument system and enables remote network access to any Accela.
 

 
AnaSpec last week launched nine new catalog antibodies including anti-caspase -8L; anti-MAP1-LC3 alpha (NT); and anti-human keratin-19 (IN). This week, it introduced nine new peptides for drug discovery research, including rat renin FRET substrate; peptide substrate for renin 520 assay kit; and (Glu1)-Fibrinopeptide B.

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Science Papers Examine Feedback Mechanism Affecting Xist, Continuous Health Monitoring for Precision Medicine

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