Nor-

In chemical nomenclature, nor- is a prefix to name a structural analog that can be derived from a parent compound by the removal of one carbon atom along with the accompanying hydrogen atoms. The nor-compound can be derived by removal of a CH
3, CH
2, or CH group, or of a C atom. The "nor-" prefix also includes the elimination of a methylene bridge in a cyclic parent compound, followed by ring contraction. (The prefix "homo-" which indicates the next higher member in a homologous series, is usually limited to noncyclic carbons).

"Nor" is an abbreviation of normal. Originally, the term was used to denote the completely demethylated form of the parent compound. Later, the meaning was restricted to the removal of one group. Nor is written directly in front of the stem name, without a hyphen between, unless there is another prefix after nor (for example α-). If multiple groups are eliminated the prefix dinor, trinor, tetranor, etcetera is used. The prefix is preceded by the position number (locant) of the carbon atoms that disappear. For example 2,3-dinor. The original numbering of the parent compound is retained. According to IUPAC nomenclature, this prefix is not written with italic letters and unlike nor, when it is a di or higher nor, at the end of the numbers separated by commas, a hyphen is used. As for example 2,3-dinor-6-keto Prostaglandin F1α is produced by beta oxidation of the parent compound 6-keto Prostaglandin F1α. Here, though actually carbon 1 & 2 are lost by oxidation. The new Carbon 1 has now become a CCOH similar to the parent compound, looking as if just carbon 2 & 3 have been removed from the parent compound. "Dinor" does not have to be reduction in adjacent carbons e.g. 5-Acetyl-4,18-dinor-retinoic acid, where 4 referred to a ring carbon and 18 referred to a methyl group on the 5th carbon on the ring.

Nor

Nor may refer to:

Nør may refer to:

NOR may stand for:

 Norway, official country code

List of Wicked characters

This is a list of characters that appear in Gregory Maguire’s Wicked Series

Protagonists

Elphaba "Elphie" Thropp

6.5×55mm

The 6.5×55mm (designated as the 6.5×55 Swedish by the SAAMI and 6,5 × 55 SE by the C.I.P.) is a rimless bottlenecked rifle cartridge. Other, less common names are 6.5×55mm Swedish Mauser, 6.5×55mm Mauser and 6.5×55mm Krag. It was developed in 1891 for use in the new service rifles then under consideration by the United Kingdoms of Sweden and Norway. The two nations had independent armies and consequently the normal procedure at the time was for their respective governments to use the same ammunition and then purchase small arms of their choice. Norway adopted the Krag–Jørgensen rifle, while Sweden adopted a Mauser rifle design.

The 6.5×55mm cartridge has a smaller bullet diameter and lower recoil than other full-power service rifle cartridges like the .30-06 Springfield and 7.92×57mm Mauser, but thanks in part to its relatively roomy case with an uncommon 12.2 mm (0.480 in) diameter bolt face which was designed for loading long, heavy 6.5 mm bullets, has proven more successful than other first-generation smokeless-powder military cartridges of similar caliber such as the 6×60mm US Navy, 6.5×54mm Mannlicher–Schönauer, 6.5×53mmR Dutch Mannlicher, 6.5×52mm Carcano and 6.5×50mm Arisaka.

Neuron-derived orphan receptor 1

The neuron-derived orphan receptor 1 (NOR1) also known as NR4A3 (nuclear receptor subfamily 4, group A, member 3) is a protein that in humans is encoded by the NR4A3 gene. NOR1 is a member of the nuclear receptor family of intracellular transcription factors.

NOR1 plays a central regulatory role in cell proliferation, differentiation, metabolism and apoptosis

Interactions

Neuron-derived orphan receptor 1 has been shown to interact with SIX3.

See also

References

Further reading

External links