BioScience Dictionary

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Ot.

Found Isomer 27 times.

Displaying results 1 to 10.

1. Anomer (adj. anomeric)
Stereoisomer s of a sugar which differ only in how they are configured about their respective carbonyl (anomeric) carbon atom.

2. Camptothecin (CPT)
This alkaloid was originally isolated from a Chinese tree, Camptotheca acuminata but has also been found in the nothapodytes tree (Nothapodytes foetida). It is the first known naturally-produced DNA topoisomerase I inhibitor, and as such is being heavilly researched as a treatment for a wide variety of cancers.

3. Chain isomer (skeletal isomer)
One of two or more compounds having the same chemical composition but differing in the arrangement of the atoms (usually carbon atoms) forming the backbone of the structure of the compounds.

4. Configuration
The three-dimensional arrangement of an organic molecule that is caused by: * double bonds that prevent free rotation, or * chiral centers that have side groups arranged around them in a particular order. A configurational isomer can't be turned into another configuration without breaking covalent bonds.

5. Dextrorotatory isomer
A stereoisomer that does a clockwise rotation of plane-polarized light.

6. Dihydroxyacetone phosphate
This is an intermediate molecule involved in the fourth step of glycolysis . Dihydroxyacetone phosphate is created from fructose 1,6-bisphosphate. In step 5, it is converted into its positional isomer, glyceraldehyde 3-phosphate, with the aid of triose phosphate isomerase .

7. Enantiomers
A pair of chiral isomer s that are direct, nonsuperimposable mirror images of each other.

8. Epimer
A stereoisomer of a compound that has at least two asymmetric centers that differs from its alternate form at a single asymmetric center.

9. Fructose 6-phosphate
A phosphorylated six-carbon sugar formed in the second step of glycolysis by the action of phosphoglucose isomerase on glucose 6-phosphate . In the third step, fructose 6-phospate and ATP are used to create fructose 1,6-biphosphate, ADP and a free hydrogen with the aid of phosphofructokinase .

10. Galactose
A six-carbon sugar that is an optical isomer of glucose , but is less sweet and less soluble. Galactose is found in milk, sugar beets, seaweed, and in nerve and brain tissue.

View web definitions »

Learn more about Isomer »