Definition of epimer in English:

epimer

noun ˈɛpɪməˈepəmər

Chemistry

Each of two isomers with different configurations of atoms about one of several asymmetric carbon atoms present.
〔化〕差向（立体）异构体，差位（立体）异构体
Example sentencesExamples
- Glucose and galactose are structurally similar, being epimers, while the lactose permease transports a wide variety of galactosides.
- To our knowledge, this is the first example of two highly homologous enzymes belonging to the same gene family, and catalyzing the formation of two distinct epimers from a same substrate.
- This study was not able to show any difference in the effect of KP - 23S and KP - 23R epimers on the bilayer.
- However, it has not been unraveled why so many different BChI homologs and epimers exist in chlorosomes and how they arrange themselves to form light-harvesting antennas.
- Yet, fungi could probably utilize the glucuronic acid residue in glucuronides as a carbon source because they can metabolize galacturonic acid, an epimer of glucuronic acid.

Derivatives

epimeric

adjectiveɛpɪˈmɛrɪk

Chemistry

The spectral properties of the Soret band were basically unchanged among the epimers or epimeric / homologous mixtures.
Example sentencesExamples
- X-ray crystallographic studies revealed that the KP - 23 molecule crystallizes in epimeric form in the triclinic P1 space group and possesses four chiral centers.
- Gonyautoxin 2,3 and Gonyautoxin 1,4 are epimeric mixtures of C - 11 sulfated derivatives of saxitoxin and neosaxitoxin, respectively.
- Abstract Epicholesterol is an epimeric form of cholesterol (Chol).
- Despite having the same secondary 3 1 hydroxyl group as 2R, the epimeric 3 1 isomer 2S shows a less-red-shifted absorption band than 2R.

epimerism

nounɛˈpɪmərismɪˈpɪmərism

Chemistry

Both epimerism and degree of oligomerization are important determinants of the antioxidant activity of flavan-3-ols and procyanidins.
Example sentencesExamples
- As shown in the above Table, epimerism did not occur in the present invention.

Definition of epimer in US English:

epimer

nounˈepəmər

Chemistry

Each of two isomers with different configurations of atoms around one of several asymmetric carbon atoms present.
〔化〕差向（立体）异构体，差位（立体）异构体
Example sentencesExamples
- Yet, fungi could probably utilize the glucuronic acid residue in glucuronides as a carbon source because they can metabolize galacturonic acid, an epimer of glucuronic acid.
- This study was not able to show any difference in the effect of KP - 23S and KP - 23R epimers on the bilayer.
- Glucose and galactose are structurally similar, being epimers, while the lactose permease transports a wide variety of galactosides.
- To our knowledge, this is the first example of two highly homologous enzymes belonging to the same gene family, and catalyzing the formation of two distinct epimers from a same substrate.
- However, it has not been unraveled why so many different BChI homologs and epimers exist in chlorosomes and how they arrange themselves to form light-harvesting antennas.

单词	epimer
释义	Definition of epimer in English: epimer noun ˈɛpɪməˈepəmər Chemistry Each of two isomers with different configurations of atoms about one of several asymmetric carbon atoms present. 〔化〕差向（立体）异构体，差位（立体）异构体 Example sentencesExamples Glucose and galactose are structurally similar, being epimers, while the lactose permease transports a wide variety of galactosides. To our knowledge, this is the first example of two highly homologous enzymes belonging to the same gene family, and catalyzing the formation of two distinct epimers from a same substrate. This study was not able to show any difference in the effect of KP - 23S and KP - 23R epimers on the bilayer. However, it has not been unraveled why so many different BChI homologs and epimers exist in chlorosomes and how they arrange themselves to form light-harvesting antennas. Yet, fungi could probably utilize the glucuronic acid residue in glucuronides as a carbon source because they can metabolize galacturonic acid, an epimer of glucuronic acid. Derivatives epimeric adjectiveɛpɪˈmɛrɪk Chemistry The spectral properties of the Soret band were basically unchanged among the epimers or epimeric / homologous mixtures. Example sentencesExamples X-ray crystallographic studies revealed that the KP - 23 molecule crystallizes in epimeric form in the triclinic P1 space group and possesses four chiral centers. Gonyautoxin 2,3 and Gonyautoxin 1,4 are epimeric mixtures of C - 11 sulfated derivatives of saxitoxin and neosaxitoxin, respectively. Abstract Epicholesterol is an epimeric form of cholesterol (Chol). Despite having the same secondary 3 1 hydroxyl group as 2R, the epimeric 3 1 isomer 2S shows a less-red-shifted absorption band than 2R. epimerism nounɛˈpɪmərismɪˈpɪmərism Chemistry Both epimerism and degree of oligomerization are important determinants of the antioxidant activity of flavan-3-ols and procyanidins. Example sentencesExamples As shown in the above Table, epimerism did not occur in the present invention. Definition of epimer in US English: epimer nounˈepəmər Chemistry Each of two isomers with different configurations of atoms around one of several asymmetric carbon atoms present. 〔化〕差向（立体）异构体，差位（立体）异构体 Example sentencesExamples Yet, fungi could probably utilize the glucuronic acid residue in glucuronides as a carbon source because they can metabolize galacturonic acid, an epimer of glucuronic acid. This study was not able to show any difference in the effect of KP - 23S and KP - 23R epimers on the bilayer. Glucose and galactose are structurally similar, being epimers, while the lactose permease transports a wide variety of galactosides. To our knowledge, this is the first example of two highly homologous enzymes belonging to the same gene family, and catalyzing the formation of two distinct epimers from a same substrate. However, it has not been unraveled why so many different BChI homologs and epimers exist in chlorosomes and how they arrange themselves to form light-harvesting antennas.
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