There are 29 genetically distinct collagens present in animal tissues. Collagen types I, II, III, V and XI self-assemble into D-periodic cross-striated fibrils. Here the D is approximately 67 nm and there is characteristic axial periodicity of collagen.
Marble Hill is a fourth-class city in central Bollinger County in Southeast Missouri in the United States. Located at the intersection of State Highway 34 and State Highway 51, it is the largest city in Bollinger and serves as the county seat. The population was 1,477 at the 2010 census.
Cedar Hill is a city in Dallas and Ellis counties in the U.S. state of Texas.It is located approximately 16 miles (26 km) southwest of downtown Dallas and is situated along the eastern shore of Joe Pool Lake and Cedar Hill State Park.n the city the population at the 2000 census was spread out with 32.6% under the age of 18, 7.7% from 18 to 24, 35.8% from 25 to 44, 19.2% from 45 to 64, and 4.6% who were 65 years of age or older. The median age was 32 years.