Affymetrix last week introduced its GeneChip Barley Genome Array, a microarray that contains 22,700 probe sets representing high-quality gene sequences with 11 probe pairs per set, created at an 18-micron feature size.
The company said it would host annotation information for the array after June 28, as well as on PlantGDB (http://www.zmdb.iastate.edu /PlantGDB/hordeum_vulgare.html) and BarleyBase (http://barleypop.vrac. iastate.edu/BarleyBase/guide.php?page=home). The company said the array will be sold in lots of five and will be available for shipment after June 28. The array was designed and funded by the US Department of Agriculture’s Initiative for Future Agriculture and Food Systems Triticeae Improvement Group.
Biacore International has launched two sensor chips and upgraded software for its Biacore S51 system. Sensor chip SA enables the immobilization of biotin-labeled proteins, while sensor chip L1 allows users to immobilize lipids and liposomes. The new software, version 1.2, is free of charge for current users of Biacore S51 and will be the standard for all new systems.
Ciphergen Biosystems has launched an Interaction Discovery Mapping platform, which uses purified and identified protein biomarkers as “bait” on Ciphergen’s coated chips or affinity beads. These Trap-eZe beads are pre-activated and covalently bind bait molecules or antibodies.
Ciphergen also launched a new biochip line for SELDI–TOF-mass spectrometry, with the energy absorbing molecule or “matrix” incorporated in the surface chemistry of the array.