Cis

[L.] in organic chemistry, having certain atoms or radicals on the same side; in genetics, having the two mutant genes of a pseudoallele on the same chromosome. Compare trans. See also cis-trans test.

• c. acting — in molecular biology, a sequence or regulatory protein that is part of the same DNA molecule as the gene of interest. See also trans acting.
• c.-acting mutation — in the lactose operon a mutation in the attenuator region that disrupts base pairing in the double-stranded portion of the termination hair pin and permits the RNA polymerase to ‘read through’ the termination signal.
• c.-dominant mutation — occurs in regulatory sequences that are recognized by DNA binding proteins that affect only adjacent genes on the same DNA molecule.

For acronyms, see CIS (disambiguation).

Look up cis or cis- in Wiktionary, the free dictionary.

Cis may have the following meanings:

• "Cis-" as a prefix of Latin origin, meaning "on the same side [as]" or "on this side [of]", with several derived usages:
  • In chemistry, cis- refers to cis-trans isomerism
  • In molecular biology, cis- refers to cis-acting
  • In gender studies, cis- refers to cisgender
• In music, cis is another name for C-sharp
• In the mathematics of complex numbers, cis  θ is an abbreviation for cos θ + i·sin θ
• Cis, Italy, a commune in the province of Trento
• Cis, Świętokrzyskie Voivodeship (south-central Poland)
• Cis, Warmian-Masurian Voivodeship (north Poland)
• Cis, a character in the short film Program from the Animatrix series
• Cis (beetle), a genus of minute tree-fungus beetles
• Computer, cis is a shorting of Comodo Internet Security

See also

• All pages beginning with "Cis"
• Cisleithania

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