Sorry to be unclear..yes, they make great beers. But I was referring to the heritage of1450.
While Maribeth Raines and Jeff Mellem are the only people who know for certain, there is a lot of evidence that points to BrewTek CL-50 being North Coast's yeast strain. First, let's look at the culture's original description.
CL-50 California Pub Brewery Ale
For that classic U.S. small brewery flavor. CL-50 produces terrific
American red & pale ale styles. While attenuation is normal, this
yeast produces a big, soft, well rounded malt flavor that really lets
caramel malt flavors shine.
Temperature Range: 60--70 F
North Coast started as a pub brewery. Their first hit was Red Seal Ale (red ale was very popular in the 90s). The culture is definitely not a BRY-96 derivative. It behaves nothing like BRY-96 and has a different sensory profile. North Coast was founded by Mark Ruedrich, Tom Allen and Doug Moody. In my dealings with U.C. Davis while collecting cultures from their collection, it was made clear to me that Mark Ruedrich acquired North Coast's culture from their collection. However, they would never give me the accession number.