trans configuration


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trans configuration

[-kənfig′yərā′shən]
Etymology: L, trans + configurare, to form from
1 an arrangement in which the dominant allele of one pair of genes and the recessive allele of another pair are on the same chromosome.
2 an arrangement in which at least one mutant gene and one wild-type gene of a pair of pseudoalleles are present on each chromosome of a homologous pair. Also called trans arrangement, trans position. Compare cis configuration.
3 in chemistry, a form of geometric isomerism in which two substituent groups occur on opposite sides of a structure such as a ring or a double bond. Also referred to as E (entgegen) configuration. Compare cis configuration.
References in periodicals archive ?
In this synthesis, isomerization was driven toward the trans configuration, resulting in a 58% trans 1,4-CHDA.
Under the conditions used for polymerization, it was found that the trans configuration was favored for both 1,3- and 1,4-CHDA, resulting in 70% and 58% percent trans moieties, respectively.
So epoxide 10 synthesised from acetate 6 indicated that acetate 6 has trans configuration (Scheme-3).
The monomers are randomly distributed in the polymer structure, while the butadiene fraction is found in its major part in the trans configuration with a smaller fraction in the cis and vinyl configurations, according to the literature.
Property Effect on Effect on Melting Point "Health" Increased Chain Length Increase Negative Increased Saturation Increase Negative Increased Trans Configuration Increase Negative
These unsaturated fatty acids isomerise into more stable trans configurations during extraction process [1], hydrogenation [2], heating [3,4], deep frying [5], deodorization [4,6,7] and radical catalisation [8].
The cis and trans configurations of 3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane carboxylic acid (i.
In trans configurations, the chain bends in opposite directions on either side of the double bond--making a zigzag.
the snack manufacturing world that hasn't received enough attention is the use of fully hydrogenated oils that do not create trans configurations.

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