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- Pyrimidine dimers, also known as thymine dimers, are molecular lesions that originate from thymine or cytosine bases within DNA. They are formed by a photochemical reaction when exposed to ultraviolet light, causing two consecutive bases on one strand to bind together and disrupting the normal base-pairing double-strand structure in that area. These cross-linking events can lead to DNA mutations and are associated with skin cancers12.
Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.The photon causes two consecutive bases on one strand to bind together, destroying the normal base-pairing double-strand structure in that area. Pyrimidine dimers represent molecular lesions originating from thymine or cytosine bases within DNA, resulting from photochemical reactions.en.wikipedia.org/wiki/Pyrimidine_dimerPyrimidine dimers Pyrimidine dimers (also known as thymine dimers) are formed by a photochemical reaction from pyrimidine DNA bases when exposed to ultraviolet light. This cross-linking causes DNA mutations, which can be carcinogenic, causing skin cancers.en.wikipedia.org/wiki/Dimerization_(chemistry) - People also ask
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See all on WikipediaPyrimidine dimer - Wikipedia
Pyrimidine dimers represent molecular lesions originating from thymine or cytosine bases within DNA, resulting from photochemical reactions. These lesions, commonly linked to direct DNA damage, are induced by ultraviolet light (UV), particularly UVC, result in the formation of covalent bonds … See more
Pyrimidine dimers encompass several types, each with distinct structures and implications for DNA integrity.
Cyclobutane … See moreMutagenesis, the process of mutation formation, is significantly influenced by translesion polymerases which often introduce mutations … See more
Direct DNA damage is reduced by sunscreen, which also reduces the risk of developing a sunburn. When the sunscreen is at the … See more
Pyrimidine dimers introduce local conformational changes in the DNA structure, which allow recognition of the lesion by repair enzymes. In most organisms (excluding See more
Wikipedia text under CC-BY-SA license Deoxyribonuclease (pyrimidine dimer) - Wikipedia
Deoxyribonuclease (pyrimidine dimer) (EC 3.1.25.1, endodeoxyribonuclease (pyrimidine dimer), bacteriophage T4 endodeoxyribonuclease V, T4 endonuclease V) is an enzyme. This enzyme catalyses the following chemical reaction:
Endonucleolytic cleavage near pyrimidine dimers to products with 5'-phosphate
This enzyme acts on a damaged strand, 5' from the damaged site.Wikipedia · Text under CC-BY-SA license- Estimated Reading Time: 1 min
Pyrimidine - Wikipedia
WEBPyrimidine (C 4 H 4 N 2; / p ɪ ˈ r ɪ. m ɪ ˌ d iː n, p aɪ ˈ r ɪ. m ɪ ˌ d iː n /) is an aromatic, heterocyclic, organic compound similar to pyridine (C 5 H 5 N). One of the three diazines …
Photolyase - Wikipedia
WEBPhotolyases bind complementary DNA strands and break certain types of pyrimidine dimers that arise when a pair of thymine or cytosine bases on the same strand of DNA …
Pyrimidine dimers - Wikipedia
WEBPyrimidine dimer From the plural form : This is a redirect from a plural noun to its singular form. This redirect link is used for convenience; it is often preferable to add the plural …
Deoxyribodipyrimidine endonucleosidase - Wikipedia
WEBDeoxyribodipyrimidine endonucleosidase (EC 3.2.2.17, pyrimidine dimer DNA-glycosylase, endonuclease V, deoxyribonucleate pyrimidine dimer glycosidase, pyrimidine dimer …
Pyrimidine Dimer - an overview | ScienceDirect Topics
WEBA pyrimidine dimer is an intrastrand DNA cross-link caused by exposure to ultraviolet light, which can block DNA replication and transcription. Various DNA repair …
Pyrimidine Dimer - an overview | ScienceDirect Topics
WEBPyrimidine dimers are structures that form between two of four nucleotide bases that make up DNA: the nucleotides cytosine and thymine, which are members of the chemical …
Pyrimidine dimer | chemical structure | Britannica
WEBchemical structure. Learn about this topic in these articles: genetic disease. In human genetic disease: Ultraviolet radiation. Such pyrimidine dimerization is mutagenic, but …
Pyrimidine - Simple English Wikipedia, the free encyclopedia
WEBPyrimidines include three of the bases in DNA and RNA. A pyrimidine is an aromatic heterocyclic organic compound, similar to purine. It has nitrogens at positions 1 and 3 …
Pyrimidine Dimer - an overview | ScienceDirect Topics
WEBPyrimidine Dimer CPDs are formed by the rearrangement of the normal double bond between the carbon atoms at position 5 and 6 in a pyrimidine into C5-C5 and C6 C6 …
Pyrimidine Dimer - Knowledge and References | Taylor & Francis
WEBA pyrimidine dimer is a type of DNA damage that occurs when adjacent pyrimidine bases on the same DNA strand are covalently linked by a cyclobutane type ring, typically as a …
Pyrimidine | C4H4N2 | CID 9260 - PubChem
WEBPyrimidine is the parent compound of the pyrimidines; a diazine having the two nitrogens at the 1- and 3-positions. It has a role as a Daphnia magna metabolite. It is a member of …
Pyrimidine Dimer - an overview | ScienceDirect Topics
WEBPyrimidine dimer (PD) is, perhaps, the best-known DNA lesion affecting a single DNA strand. It is an intrastrand cross-link, in which two adjacent pyrimidines are connected …
Pyrimidine dimer - Wikipedia - Al-Quds University
WEBOct 19, 2022 · Pyrimidine dimers are molecular lesions formed from thymine or cytosine bases in DNA via photochemical reactions, commonly associated with direct DNA damage.
9.3: DNA Repair - Biology LibreTexts
WEB2. Pyrimidine Dimerization. UV light exposure of DNA can cause adjacent pyrimidines (commonly thymines; less often, cytosines) on a DNA strand to dimerize. Pyrimidine …
DNA repair 2 (video) | DNA | Khan Academy
WEBIt explains how UV rays can cause pyrimidine dimers, leading to structural damage in DNA. The video also distinguishes between mutations and DNA damage, and explores …
嘧啶二聚体 - 维基百科，自由的百科全书
WEB嘧啶二聚体（pyrimidine dimer，简称PD），是DNA或RNA中的相邻碱基，如胞嘧啶及胸腺嘧啶，在紫外线的诱导下進行光化学合成，於碳-碳雙鍵生成共价键而形成的一种化 …
Pyrimidine Dimers — University of Illinois Urbana-Champaign
WEBPyrimidine dimer is an intrastrand DNA cross-link, induced by exposure to ultraviolet light (sunlight). Two types of dimers are formed, depending on whether DNA is single …
Talk:Pyrimidine dimer - Wikipedia
WEBThe contents of the Direct DNA damage page were merged into Pyrimidine dimer on 4 September 2022. For the contribution history and old versions of the redirected page, …
What happens after a pyrimidine dimer? : r/askscience - Reddit
WEBI asked her if this was normal and she didn't really know the answer (not the best teacher ever...) so I looked it up on Wikipedia (French version), which told me that a thymine …
pyrimidine dimers - Wikidata
WEBenwiki Pyrimidine dimer; frwiki Dimère de pyrimidine; glwiki Dímero de pirimidina; ptwiki Dímero de pirimidina; ruwiki Пиримидиновый димер; shwiki Pirimidinski dimer; srwiki …
ELI5: How exactly does UV light damage DNA? : …
WEBThymine (pyrimidine) dimers form in the DNA, which make it harder for the cell to faithfully make another full DNA genome copy when the cell divides. More mutations often result, …
Pirimidinski dimer – Wikipedija/Википедија
WEBPirimidinski dimeri su molekulska oštećenja formirana od timinskih ili citozinski baza DNK molekula putem fotohemijske reakcije. [1] [2] Ultraljubičasto svetlo indukuje formiranje …
Pirimidinski dimer — Википедија - sr.wikipedia.org
WEBLevo: fotoprodukt spore. desno: ciklobutanski dimer pirimidina. Ciklobutanski dimer pirimidina (engl. Cyclobutane pyrimidine dimer - CPD) sadrži četvoročlani prsten …
피리미딘 이합체 - 요다위키
WEB피리미딘 이합체 는 광화학 [1] [2] 반응 을 통해 DNA 의 티민 또는 시토신 염기로부터 형성되는 분자 병변 이다. 자외선 (UV)은 탄소-탄소 이중 [3] 결합 근처에서 뉴클레오티드 …
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