KAIA

Kaia or KAIA may refer to:

See also

KaiA

kaiA is a gene in the "kaiABC" gene cluster that plays a crucial role in the regulation of circadian rhythm in bacteria, such as the cyanobacterium Synechococcus elongatus. For these bacteria, regulation of kaiA expression is critical for circadian rhythm, which determines the twenty-four hour biological rhythm. In addition, KaiA functions with a negative feedback loop in relation with kaiB and KaiC. The kaiA gene makes KaiA protein that enhances phosphorylation of KaiC while KaiB inhibits activity of KaiA.

History

Discovery

Circadian rhythms have been discovered in a diversity of organisms. These rhythms control a variety of physiological activities and adapt to environmental conditions. Cyanobacteria are the most primitive organisms that demonstrate a circadian oscillation. Cyanobacteria clocks were first founded in Blue Green Algae with the oldest known fossils about 3.5 billion years old. Susan Golden, Carl Johnson and Takao Kondo were the individuals who found that the minimal cyanobacteria clock consists of 3 proteins: KaiA, KaiB, and KaiC. (Note: kai means cycle in Japanese.) The experiment performed by Kondo consisted of attaching the luciferase gene and performing mutagenesis. This was the first identification of possible genes that could reconstitute a biological clock within cyanobacteria, of which KaiA was included.

Air 1

Air1 is a contemporary hit radio (CHR) Christian radio network in the United States, playing Contemporary Christian music. It is operated by the non-profit Educational Media Foundation and is syndicated on dozens of stations across 42 states in cities including San Bernardino, San Diego, Houston, Dallas-Fort Worth, Seattle-Tacoma, Portland, Phoenix, Oklahoma City, Tulsa, Ventura, Thousand Oaks, Kansas City, Virginia Beach-Norfolk, Burlington, Jacksonville and portions of Los Angeles.

History

In 1986, KLRD began broadcasting Christian music from Yucaipa, California, and went by the on-air moniker K-LORD. In 1994, KXRD was started as a sister station to KLRD. In 1995, K-LORD changed their name to "Air 1" and began broadcasting via satellite from St. Helens, Oregon. In 1999, Air 1 joined with EMF Broadcasting (the former name of KLA1 Foundation), and finally in 2002, it moved its headquarters to Rocklin, California. Air 1 makes use of broadcast translators to spread the signal across much of the country. As of November 2011, the network lists 90 full powered radio stations and 125 translators of various power levels reaching 40 states.