Gavin states that he is a geneticist and says: "There are complex controls
over the expression of most genes,,,it is just that now we are getting some
idea of just how complex."
Working with the Army, we are getting heavily into Proteomics and bees, and
I think that this may be where some of this conversation may be going.
FYI, all of the genes in a cell (or organism) constitute the genome.
Similarly, the entire constellation of proteins in a cell make up the proteome.
Proteins are made up of building 20 amino acid building blocks.
Finally, some folks have adopted short cut terminology of calling genomics
and proteomics the Omics - bit cute for my taste. But in the field of
Informatics, you will see references made to omics.
Establishing the honey bee genome (mapping the blueprint) was step 1. Genes
get lots of press, but it’s the proteins (step 2) that perform most life
functions and even make up the majority of cellular structures.
There's not been much discussion on this list about Proteomics, but this is
where the big pharmaceutical companies are looking for new treatments. It is
still hard to replace or 'fix' a gene. Genes regulate the production of
proteins, and that's where many more opportunities exist, since proteins can
turn things on and off, etc. Studying proteomics (protein expression and
function) promises to help elucidate the molecular basis of health and disease.
With new advances in instrumentation, we can now screen for a huge array of
peptides/proteins in a single bee sample. Typically, we get hundreds, often
thousands of identifiable peptides per bee sample. Peptides are short
polymers of amino acids.. Proteins are polypeptide molecules (consisting of
multiple peptides). The distinction is that peptides are short and
polypeptides/proteins are long.
We can match the identified peptides in a given bee sample against databases
of over 64 million known peptides. Using only those peptides that pass the
criteria of strong correlation/multiple peptide, we have already discovered
the introduction of a new bee virus to N. America, learned a lot about a wide
array of diseases in U.S. bees, discovered much about other insect and plant
diseases in bee hives, and have found some leads that may help distinguish
sick from healthy bees.
The CA Beekeepers funded us and the Army to conduct a proteomics study of CA
bees to establish baselines and profiles.
Last week, we got a commitment from beekeepers in Canada to send us samples.
Working with the Army, we can now offer proteomics screening to beekeepers.
The price per test is a bit pricey at $250 sample, but the information
obtained is somewhat similar to going to your doctor for a checkup and having just
about every lab test known conducted at one time. We will be at the
National Bee meetings to present more about this subject and why it should be of
interest to you.
I assume by now, some of you are saying, if proteomics is so good, why are
we only now hearing about it. Well, there's a downside. We having only
scratched the surface in understanding this data - and worldwide, scientists are
struggling with the concept that as complex as genomics is, proteomics is even
more complex.
More than one article about proteomics quotes Sir Winston Churchill.
His words, spoken in 1942 after 3 years of war, capture well the
genome/proteomics era: "Now this is not the end. It is not even the beginning of the
end. But it is, perhaps, the end of the beginning."
Jerry
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