MON89034 x NK603 (YieldGard VT PRO/RR2) is one of 8 applications for Monsanto's YieldGard VT PRO (MON89034) hybrids as food/feed or for cultivation, even though MON89034 itself has not even been approved as food/feed in the EU.
MON89034 produces two Bt toxins (Cry1A.105 and Cry2Ab2) against a number of lepidopteran pest, but little is know about these Bt toxins. Cry1A.105 is not really one Bt toxin, but a protein comprised of naturally occurring Cry1Ab, Cry1F, and Cry1Ac proteins. The gene cry1A.105 is a chimeric gene comprising of 4 domains from other cry genes previously used in transgenic plants.
Cry2Ab2 belongs to the class of Cry2Ab toxins that are currently mainly used in Bt cotton plants.
NK603 is one of Monsanto's Roundup Ready maize events that contains two transgenic cp4-epsps genes under the control of two different promotors.
Regulatory status and information, October 2009:
This hybrid is currently (14.10.2009) not listed in the Biosafety Clearing House. agbios lists approvals as food and/or feed only from four Asian countries (Japan, Korea, Philippines and Taiwan), but states that hybrids of two GMOs do not need regulatory approval in the US, so it is safe to assume that this hybrid can be cultivated and consumed in the US.
The application explicitly covers not only food and feed produced from this maize (e.g. flour or oil) but also "products containing or consisting of GM MON89034 x NK603 (e.g. maize grains)". In June 2009, Monsanto also filed a application for the cultivation of MON890434xNK603, which was accepted in October 2009 and is now (October 2009) in progress.
The opinion of the GMO Panel is based on the premise that the 'stacked genes' in a hybrid of two GM events can in general be assessed on the basis of the individual GMOs. In this case it meant for example that no feeding studies were conducted with MON89034xNK603:
As the composition of maize MON89034 x NK603 is comparable with that of non-GM maize varieties and the single events and also no indication for interaction between the single events was found, the GMO Panel is of the opinion that no additional safety studies on animals are required.