If you're driving down San Pedro Avenue or stuck in rush hour traffic in San Antonio, you've probably noticed a pyramid-shaped structure towering above Loop 410. Maybe you're like me, and you've ...

Add Yahoo as a preferred source to see more of our stories on Google. The Pyramid, located at 601 NW Loop 410, San Antonio, TX 78216, is one of the city's most recognizable buildings. (Courtesy of ...

If you're driving down San Pedro Avenue or stuck in rush hour traffic in San Antonio, you've probably noticed a pyramid-shaped structure towering above Loop 410. Maybe you're like me, and you've ...

To characterize the contributions of individual amino acids to the structure or function of a protein, researchers have adopted directed evolution approaches, which use iterated cycles of mutagenesis ...