The MTHFR gene provides instructions for making an enzyme called methylenetetrahydrofolate reductase. This enzyme plays a role in processing amino acids, the building blocks of proteins.omocystinuria-caused by mutations in the MTHFR gene. At least 40 mutations in the MTHFR gene have been identified in people with homocystinuria, a disorder in which the body is unable to process certain amino acids properly.
What city has the largest population? Coming in at 8.1 million people, New York is the largest US city. When we looked into further into the results, we were surprised at which cities made the list. In fact, we searched beyond the 10 largest US cities by population as defined by 2010 U.S. Census, and also looked at the 10 largest metro areas.
Denver is ranked as a Beta- world city by the Globalization and World Cities Research Network. With a 2015 estimated population of 682,545, Denver ranks as the 19th-most populous U.S. city, and with a 2.8% increase in 2015, the city is also the fastest-growing major city in the United States.