Structure The molecular structure of alpha-keratin. Disulfide bonds between two alpha-helix keratin. Î±-keratin is a polypeptide chain , typically high in alanine , leucine , arginine , and cysteine , that forms a right-ha
About city. Bangui is the capital of the Central African Republic. Covering an area of 67 sq km and with an approximate population of 750,000 recorded in 2012, it is also the largest city in the country.bout city. Bangui is the capital of the Central African Republic. Covering an area of 67 sq km and with an approximate population of 750,000 recorded in 2012, it is also the largest city in the country.
Bangued is accessible through the Abra-Ilocos Sur National Road from the west, Abra-Kalinga Road from the north-east, and Abra-Ilocos Norte Road from the North. It is 408 kilometres (254 mi) from Manila, 197 kilometres (122 mi) from Baguio and 60 kilometres (37 mi) from Vigan.