Product News: Materials & Material Processing

Fluorescent Protein is offered for research/commercial use.

Press Release Summary:

Oct 10, 2006 - DsRed-Monomer has red-shifted emission spectra that makes it suited for use as reporter for multi-color labeling applications. Also useful as fusion tag or to avoid green auto-fluorescence, this engineered monomeric form of normally tetrameric Discosoma sp. red fluorescent protein is useful for monitoring signal transduction pathways; observing gene expression; tracking subcellular organelles and proteins; and cell population labeling/identification.

Original Press Release

Clontech Laboratories, Inc. Makes the DsRed-Monomer Fluorescent Protein Available to For-Profit Entities

Press release date: Sep 18, 2006

MOUNTAIN VIEW, Calif., Sept. 18 -- Clontech, a wholly owned subsidiary of Takara Bio Inc., announced today that it is now making the DsRed-Monomer fluorescent protein available to for-profit entities for both research and commercial use. Previously, the DsRed-Monomer was only available to not-for-profit organizations.

The DsRed-Monomer fluorescent protein is a highly engineered monomeric form of the normally tetrameric Discosoma sp. red fluorescent protein. It is the latest addition to Clontech's extensive Living Colors(R) line of fluorescent proteins. The red-shifted emission spectra of the Living Colors red fluorescent proteins makes them ideal reporters for multi-color labeling applications or to avoid green auto-fluorescence. The new DsRed-Monomer retains these valuable red-shifted spectral properties and is also monomeric, making it especially useful as a fusion tag. The new variant's monomeric structure has been confirmed by several independent methods, including gel filtration and native polyacrylamide gel electrophoresis. Additionally, its functionality has been validated by fusion to a wide variety of proteins with diverse functions and subcellular locations.

"As the premier supplier of fluorescent protein technologies to researchers since 1994, Clontech is proud of its extensive collection of fluorescent protein tools, which now includes the DsRed-Monomer. The Living Colors line provides the broadest spectral array of monomeric and multimeric fluorescent proteins available -- from blues, like our AmCyan, through far red-shifted proteins, such as HcRed," said Carol Lou, General Manager of Clontech Laboratories, Inc.

Clontech's Living Colors fluorescent proteins have broad applications in basic research and drug development. Proven uses include monitoring signal transduction pathways; observing gene expression in live or fixed cells; tracking subcellular organelles and proteins; and labeling to identify and isolate specific populations of cells. Clontech's Living Colors fluorescent proteins have been used successfully in both animals and plants. Significantly, due to the wide spectral separation of the Clontech Living Colors fluorescent proteins, it is possible to visualize multiple events simultaneously by both microscopy and flow-cytometry.

Clontech Laboratories, Inc. develops, produces, and markets leading-edge biological products to the life science market worldwide. Clontech has over 2,000 products that enable life science researchers to study genes, their products, and their cellular function through the use of innovative and powerful tools for gene cloning, labeling, and expression; as well as for elucidating protein:protein interactions; isolating and purifying DNA and proteins; and conducting a wide variety of PCR experiments. Clontech is a wholly owned subsidiary of Takara Bio Inc. For more information visit

Takara Bio Inc. is an innovative biotechnology company based in Shiga, Japan. As a world leader in biotechnology research and development, Takara Bio was the first company to market PCR technology in Japan and is also the developer of the RetroNectin(R) reagent, which is a world-standard in gene therapy protocols. In addition to providing research reagents and equipment to the life science research market, Takara Bio has active research and product development activities in the fields of gene and cell-based therapy, and agricultural biotechnology; and is committed to preventing disease and improving the quality of life for all people through the use of biotechnology. Through strategic alliances with other industry leaders, the Company aims to extend its reach around the world. More information is available at .

CONTACT: Andrew Farmer, Ph.D., Director, Business Development of Clontech Laboratories, Inc., +1-650-919-7347, or fax, +1-650-493-5569, or