A family of adenosine triphosphate–binding cassette (ABC) transmembrane proteins that use energy to transport various molecules across extracellular... ABC transporters belong to a large, diverse superfamily of adenosine triphosphate–binding cassette (ABC) transporter transmembrane proteins. The... Any of the classes of conjugated proteins consisting of a protein combined with a lipid. The normal functioning of higher organisms requires movement... The metabolism of cholesterol, an essential component of many biochemical pathways, is tightly regulated at the cellular level. Insufficient or... Following the introduction of antibiotics into clinical usage in the 1940s, it soon became apparent that some bacteria were able to resist the... When viewed by astronauts, Earth is the blue planet. When imaged by Earth observation satellites, the planet is green. This reflects the fact that... |
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