About collaborations
Q: How do I initiate a collaboration project?
A: You should download the Gene Expression Profiling proposal form
(Word Document). Please submit the proposal electronically
to
.
Q: When is the deadline for proposal submission?
A: The proposal will be evaluated and prioritized continuously,
so there is no deadline for the proposal submission.
Q: How long does it take to evaluate my proposal?
A: It usually takes 4-8 weeks to evaluate the proposal.
Q: How many chips I can request in my proposal?
A: It depends on your project. Since a chip experiment is very expensive,
we do use the chip number requested as one of the selection and prioritization
criteria. However, if your project will suffer due to the lack of the appropriate
controls and time points, please do not sacrifice the quality of the science
you are doing. For those big projects, we suggest you divide your full
proposal to several smaller projects and conduct a pilot study first.
About profiling experiments
Q: How much RNA do I need for each chip experiment?
A: For GeneChip® experiments, we need 40 micrograms for each sample. For
cDNA microarrays, we need 200 mg for each sample if duplicates are required. You
will need to provide more material if a universal control is used for a
cDNA microarray experiment.
Q: How much does it cost for each chip experiment?
A: For collaborative projects, we will pick up the cost of the sample
labelling, chip and hybridization reactions. So, it is free of charge.
We do not provide service and we do not retail our chips.
Q: Do you have a recommended protocol for RNA preparation?
A: Yes, we will send the recommended protocol to you once your proposal
is approved.
Q: How long would it take to complete my project?
A: It depends on how big is your project. For a project with less
than 20 chip experiments, it usually takes 2-4 weeks to complete the project
after we receive the samples.
Q: Do you run duplicates for my project?
A: We normally do not run technical duplicates for the GeneChip® experiments.
This is based on our reproducibility studies. We concluded the technical
variation is much smaller than biological variations in the experiments.
To minimize the biological variations, we suggest that you pool your biological
samples collected from different individual plants, or even the same treatment
collected from different repeated experiments. We run biological duplicates
for selected projects upon approval.
About sample submission and shipment
Q: My RNA samples are ready. How do I ship my samples?
A: You should ship your samples by express mail. You may use FedEX
or UPS for domestic shipment. For international shipment, we recommend
World Courier (see below). Please read the recommended shipment instructions
e-mailed to you previously.
For items being imported to the United States,
shipment delays can be avoided by supplying the appropriate information for review
by the USDA Inspector at the port of arrival. The relevant guidelines are detailed here.
You should also send the DETAILED sample information according to the following
template. We will not be able to conduct experiments until the DETAILED sample
information for ALL of your samples is in the database. You will need to enter
the sample information for each of your samples using the
template.
You should also send an
to us when you send in your samples, so we know to expect your samples.
Q: I have many samples, is there any easy way to enter the sample
information for each of the samples?
A: You can use the template function during your online sample information
submission process. After you submit the information for the first sample,
you can use that as your template for other samples. Be sure to modify
the previous sample information before you submit when you use this function.
Q: What is the project ID, sample ID, and Scan ID?
A: A project ID is an ID we issue after your proposal is approved.
You need a project ID to login to our sample submission page. A sample
ID is the code you obtain after each sample information submission. You
should label your samples with your sample ID. You should have a sample
ID for each of your samples. Scan ID is the ID we use to identify each
unique chip data set.
Q: What is the mailing address for the shipment?
A: The mailing address is
, Syngenta Biotechnology Inc., 3054 Cornwallis Road, Research Triangle
Park, NC 27709, USA. Tel: (919)
597-3075. The country code for the U.S.A. is
+1.
Q: Do you have a recommended international shipment courier?
A: We recommend World Courier, Inc. 55 New Montgomery St., Ste 812, San Francisco, CA 94105.
It has offices through out the world. Please check local listings for office
and contact information.
Q: How should I label my sample in the international shipment?
A: Please label your samples as "total RNA, non-viable plant
materials". Please allow 3-4 days for international delivery, so add
enough dry ice.
About data and data analysis
Q: What do I get after the collaborative project is completed?
A: Data may be downloaded from our website. Login as a collaborator
and then use the tools available there. You may also contact us for detailed
analyses.
Q: Can I get some advice from you on how to analyze my data?
A: Sure. In fact we encourage you to further collaborate with us
in data analysis and data mining. We use different algorithms developed
by commercial companies, academia, and our internal experts to analyze
the microarray data. We aim to identify and use the most stable expression
pattern for further knowledge-based discovery. We also have a large microarray
database for tracing gene responses under different conditions.
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