| 单词 | deamination |
| 释义 | deamination noun[U] chemistryspecializeduk/ˌdi.æm.ɪˈneɪ.ʃən/us/ˌdi.æm.əˈneɪ.ʃən/theprocessby which one or more of thegroupsofatomscontainingnitrogenareremovedfrom amolecule 脱去（化合物的）氨基（的过程）Physical & chemical processes
deamination| American Dictionarydeamination noun[U] us/ˌdi·æm·əˈneɪ·ʃən/biology,chemistry theprocessby which one or more of thegroupsofatomscontainingnitrogen(= agasthat is achemicalelement)areremovedfrom amolecule(=smallestunitof asubstance) Examplesofdeaminationdeamination Transamination and oxidativedeaminationare the two major enzymatic pathways involved in the removal of the a-amino group of amino acids. From theCambridge English Corpus They catalyse the oxidativedeaminationof primary amines by dioxygen to form aldehydes, ammonia, and hydrogen peroxide. From theCambridge English Corpus Spontaneousdeaminationof 5-methylcytosine to thymine causes a 12-fold increased mutation frequency relative to unmodified cytosine. From theCambridge English Corpus However, over time methylated cytosines tend to turn into thymines because of spontaneousdeamination. From Wikipedia  This example is from Wikipedia and may be reused under a CC BY-SA license.Several of these keto acids are intermediates in the citric acid cycle, for example thedeaminationof glutamate forms -ketoglutarate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Hypoxanthine is also a spontaneousdeaminationproduct of adenine. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Deaminationcan be induced in solid or aqueous alanine by radiation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Transitions can be caused by oxidativedeaminationand tautomerization. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.More specifically, the catalytic domain is a zinc dependent cytidine deaminase domain and is essential for cytidinedeamination. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The small subunit contains one active site for the binding anddeaminationof glutamine to make ammonia and glutamate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The encoded enzyme catalyzes the reversible oxidativedeaminationof glutamate to alpha-ketoglutarate. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.It is formed by thedeaminationof adenosine monophosphate, and is hydrolysed from inosine. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Monoamine oxidases catalyze the oxidativedeaminationof monoamines and thereby form flavoproteins and inactivate neurotransmitters. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Deaminationconverts nitrogen from the amino acid into ammonia, which is converted by the liver into urea in the urea cycle. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The most common mutation is thedeaminationof cytosine to uracil. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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