1 They have one of two tertiary structures 2  : helix bundle proteins, which are present in all types of biological membranes; 3  beta barrel proteins, which are found only in outer membranes of Gram-negative bacteria, lipid-rich cell walls of a few Gram-positive bacteria, and outer membranes of mitochondria and chloroplasts.
Quick Answer. As of April 2015, the phone number for the south region of TRICARE is 800-444-5445, states TRICARE. The contractor that provides benefits in the region is Humana. Customer service representatives are available at that number between 8 a.m. and 6 p.m. Monday through Friday, according to Humana. Continue Reading.
Monday-Friday. 1-800-238-2227. Provider Call Center (for inquiries about small group and individual Plans sold off the Health Insurance Exchange that are supported by the BlueCare and Century Preferred provider networks. Plan names include one of these identifiers: Premium, Preferred, Essential or Core.).