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Representing a potential medical quantum leap similar to, but even more important than the commercialization of X-ray imaging, Pacific BioSciences has taken a whopping $100 million to make it possible to affordably map out an individual’s entire genome in a matter of minutes, and for under $1,000 dollars.

While several startups, including 23andMe and deCODEme, are already offering cheap genetic testing for individuals, the technology Pacific Bio is looking at is about as different from those as looking at a satellite image of a town is to walking through it. The company is working on a system to “read” each DNA letter in a person’s genetic makeup, providing an in-depth view of every factor affecting a given person’s health.

The idea sounds fairly simple: Individial DNA molecules are captured in tiny holes on a chip, where they are pulled apart and rebuilt with enzymes identical to those present in the body, but with the addition of chemical markers. A type of digital camera takes a picture of the process, identifying the specific fragment being looked at. We covered the technology in more depth when it was first revealed, and have mentioned various competitors, most notably Complete Genomics and BioNanomatrix, who want to do sequencing for under $100.

In practice, of course, operating at such tiny scales is difficult, and accurately sequencing thousands of genes at once seems nearly impossible. But the company says it will be ready to commercialize by 2010, a Herculean feat if it can pull it off. The new funding indicates that it is at least gaining the confidence of venture capitalists.

If and when that happens, it will be time for early investors including Alloy Ventures, Kleiner Perkins Caufield & Byers, and Mohr Davidow Ventures — who collectively plowed more than $70 million into Pacific Bio over four previous rounds — to rake in the money.

However, it will just be the beginning for a whole new field of medical technology centered around finding uses for all the new information in individuals that becomes available. Preventative medicine is the obvious use, but others, like data mining for new cures and information on diseases, are also possible. Laws regulating the use (and misuse) of such information by insurers, employers and others will also have to be formulated.

A passel of new investors joined the funding, starting with co-leads Deerfield Management and Intel Capital. Also in were Morgan Stanley, Redmile Group, T. Rowe Price, and an unnamed “large financial institution.” Other previous investors Maverick Capital, AllianceBernstein, DAG Ventures and Teachers’ Private Capital also participated.

ConSentry, a Silicon Valley startup that says its Internet network switches are more efficient than those of giant incumbent Cisco, has raised a $21 million round of funding.

Switches are components that route traffic from through the wider Internet network.

However, large corporations that buy switches to route their traffic often demand security feature to control access (sometimes called Network Access Control). As networks have become faster, security has become more of a challenge, Consentry said.

ConSentry’s switches are designed from the ground up to include NAC that can continuously control the access levels of users on a network, even at hard-wired LAN speeds. Contractors using a company’s network, for example, would have their privileges set when first logging on, but the network would continously monitor their behavior — not allowing suspicious behavior during the session.

NAC is a growing market, with more customers demanding high-level security for their networks. ConSentry made news earlier this year, when two schools each replaced several dozen Cisco switches with ConSentry products.

Smaller competitors also focusing on NAC include Rainier.

The $21 million funding is Consentry’s fourth round. It was led by new investor Teachers’ Private Capital. Other funds participated, including previous backers Sequoia Capital, Accel Partners, INVESCO Private Capital and DAG Ventures, and new investors Translink Capital and NCD Investors.

Consentry, based in Milpitas, Calif., has almost 100 employees, and has taken about $72 million in funding to date.

Portola Pharmaceuticals, a South San Francisco, Calif., biotech aiming to develop treatments for blood clots and other heart-related problems, raised $70 million in a third round of financing dominated by late-stage and public-market investors.

Among new investors in the round were Brookside Capital; AllianceBernstein; Teachers’ Private Capital, the private investment arm of Ontario Teachers’ Pension Plan; Goldman Sachs, T. Rowe Price, IBTM and CIDC. They were joined by existing investors Abingworth, Alta Partners, Advanced Technology Ventures, Frazier
Healthcare Ventures, MPM Capital, Prospect Ventures and Sutter Hill Ventures.

Portola plans to use the funding for additional clinical trials of its two leading drug candidates, both experimental blood thinners targeting different blood proteins that promote coagulation. PRT054021, an oral molecule that inhibits Factor Xa, showed promising signs in a recent mid-stage human test, and will advance into further clinical trials. Meanwhile, PRT060128, which prevents blood platelets from aggregating, has completed early trials and should move into mid-stage testing by the second half of 2007. Should they receive regulatory approval, both compounds would compete with blood thinners already on the market.

Portola aims to go public and may do so as early as next year, the company’s chief financial officer, Mardi Dier, told VentureWire (subscription required).