Search results
Results from the WOW.Com Content Network
Several of the CPK colors refer mnemonically to colors of the pure elements or notable compound. For example, hydrogen is a colorless gas, carbon as charcoal, graphite or coke is black, sulfur powder is yellow, chlorine is a greenish gas, bromine is a dark red liquid, iodine in ether is violet, amorphous phosphorus is red, rust is dark orange-red, etc.
These early models also established the CPK coloring scheme that is still used today to differentiate the different types of atoms in molecular models (e.g. carbon = black, oxygen = red, nitrogen = blue, etc). This early model was improved upon in 1966 by W.L. Koltun and are now known as Corey-Pauling-Koltun (CPK) models. [5]
The areas with different color may be referred as 'points' or being 'pointed'. [3] Color can spread to the rest of the body, but is concentrated on the extremities. Colorpoint patterns occur due to acromelanism, which is a type of partial albinism where pigmentation is affected by temperature. [ 3 ]
A cat with black point coloration. Points are specific areas of an animal coat that are colored differently from the main body colorations. Point coloration may be represented by a pale body color and relatively darker extremities, such as face, ears, feet, tail, and external sex organs, as seen on Siamese cats. [1]
CPK coloring, a way to color atoms when visualizing molecular models; Creatine phosphokinase, an enzyme found in humans, or alternatively a blood test for it;
However, the dilution of colour is not visible in the phenotype - the dog has the same coat colour as a DD dog. dd: Sire and dam have inherited the allele for the dilute colour expression. The black areas of the coat are lightened to blue, dogs additionally lightened by the gene on the B locus take on the colour typical of the Weimaraner.
A Great Dane with the brindle color pattern. Brindle is a coat coloring pattern in animals, particularly dogs, cattle, guinea pigs, cats, and, rarely, horses. It is sometimes described as "tiger-striped", although the brindle pattern is more subtle than that of a tiger's coat. Brindle typically appears as black stripes on a red base.
The article currently fails to explain that "CPK colors" is a very loose term that is used by different softwares and kit makers to label very different color schemes. The Jmol webpage has a table showing the hex color values and the difference between its coloring and that of Rasmol (which itself has two versions).