Cis-acting
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Definition of cis-trans :
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Cis-trans test
A genetic test to determine whether two mutations are in the same or in different genes.
Cis-dominance
A mutation that prevents the expression of downstream genes. Polar mutations in an operon are typically cis-dominant.
Cis Bond C=C double bond where the attached pieces of the carbon chain are on the same side of the double bond
(cis = on this side) ...
Cis-acting gene: A gene acting on or co-operating with another gene on the same chromosome (see trans-acting gene).
Cis
The term proposed by Haldane (1941), by analogy with chemical isomerism, to describe a double heterozygote in coupling phase, that is, with the two dominant factors derived from one parent and the two recessives from the other.
CIS - As used in molecular biology, an interaction between two sites which are located within the same molecule.
A cis-regulatory sequence that can elevate levels of transcription from an adjacent promoter. Many tissue specific enhancers can determine spatial patterns of gene expression in higher eukaryotes.
The cis face of a Golgi stack is the end of the organelle where substances enter from the endoplasmic reticulum for processing, while the trans face is where they exit in the form of smaller detached vesicles.
The transition vesicles move toward the cis Golgi on microtubules.
As they do so, their COPII coat is removed and they may fuse together forming larger vesicles.
These fuse with the cis Golgi ...
Unlike other amino acids which exist almost exclusively in the trans- form in polypeptides, proline can exist in the cis-configuration in peptides. The cis and trans forms are nearly isoenergetic.
Vesicles containing molecules from the endoplasmic reticulum arrive at the cis face of the golgi complex. Chemical reactions within the Golgi complex modify the molecules.
(5) Ribosome on the rough ER. (6) Proteins that are transported. (7) Transport vesicle. (8) Golgi apparatus. (9) Cis face of the Golgi apparatus. (10) Trans face of the Golgi apparatus. (11) Cisternae of the Golgi apparatus.
Chromophore A light-absorbing group, such as 11-cis-retinal in rhodopsin.
Chromosome walking A technique for analyzing long stretches of DNA by sequential subcloning and rescreening of overlapping segments.
Department of Genetics and 1Department of Computer and Information Science; University of Pennsylvania;
Philadelphia, PA 19104
Overton: 215/5733105, Fax: -3111, coverton@cbil.humgen.
upenn.edu
Davidson: 215/8983490, Fax: 0587, susan@cis.upenn.
3' UTR 5' UTR Mature transcript Primary transcript Splicing cis-splicing polyA trans-splicing
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It can be used to identify potential cis-regulatory sequences in a set of genes. The program compares the frequency of occurence of the 6-mers in a set of sequences against the frequency in all upstream regions of the genome.
The accidental joining of DNA of two genes, such as can occur in a translocation or inversion. Gene fusions can give rise to hybrid proteins or to the misregulation of the transcription of one gene by the cis regulatory elements (enhancers) of ...
 See also: Trans, Organ, Protein, Molecule, Cell
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