fis is the E. coli gene encoding FIS protein. The regulation of this gene is more complex than most other genes in the E. coli genome, as FIS is an important protein which regulates expression of other genes. It is supposed that fis is regulated by H-NS, IHF (protein) and CRP. It also regulates its own expression ( autoregulation). Fis is one of the most abundant DNA binding proteins in Escherichia coli under nutrient-rich growth conditions.
FIS is an international provider of financial services technology and outsourcing services. Headquartered in Jacksonville, Florida, FIS employs more than 55,000 people worldwide. FIS provides payment processing and banking software, services and outsourcing of the associated technology. FIS has over 20,000 clients in more than 130 countries. FIS is 392 on the Fortune 500 and is a member of Standard & Poor’s 500 Index. Although the company retains the word "National" in its name, its stock is now traded under the ticker FIS, and this is also the preferred abbreviation. FIS was ranked the #1 Financial Technology company on the FinTech100 in 2013 and 2014.