Экзонуклеазы

Экзонуклеазы — белки из группы нуклеаз, отщепляющие концевые мононуклеотиды от полинуклеотидной цепи путём гидролиза фосфодиэфирных связей между нуклеотидами.

В зависимости от способности гидролизовать связи на 3'- и 5'-концах полинуклеотидной цепи различают 3'- и 5'-экзонуклеазы. Экзонуклеазы встречаются в клетках как обособленно, так и в составе ферментативных комплексов. Например, ДНК-полимераза I содержит 5'-экзонуклеазу, которая отщепляет РНК-праймер, прикреплённый непосредственно к тому месту, на котором происходит синтез ДНК. После этого ДНК-полимераза I начинает присоединять нуклеотиды на место отсоединённого праймера. У архебактерий и эукариот один из основных путей деградации РНК осуществляется белковым комплексом, состоящим, по большей части из 3'- и 5'-экзорибонуклеаз.

Литература

См. также

Read other articles:

Leonore van Oranje-Nassau van Amsberg 3 juni 2006 Leonore van Oranje-Nassau van Amsberg in Lech, 2019 Gravin van Oranje-Nassau, jonkvrouw van Amsberg Periode 2006– Geboren Den Haag Vader Constantijn der Nederlanden Moeder Laurentien Brinkhorst Dynastie Van Oranje-Nassau van Amsberg Broers/zussen Eloise (2002) Claus-Casmir (2004) Leonore Marie Irene Enrica gravin van Oranje-Nassau, jonkvrouw van Amsberg (Den Haag, 3 juni 2006), is het derde kind uit het huwelijk van prins Constantijn der Ned...

 

إس إس جريت برتن   الخدمة الجنسية المملكة المتحدة لبريطانيا العظمى وأيرلندا  المصمم إسامبارد كينجدم برونيل  الطول 98.15 متر  العرض 15.4 متر  الموقع الرسمي الموقع الرسمي،  والموقع الرسمي[1]  تعديل مصدري - تعديل   51°26′57″N 2°36′30″W / 51.4492°N 2.6084°W / 5...

 

Pour les articles homonymes, voir 111e régiment. 111e régiment d'artillerie lourde coloniale Création 1er janvier 1924 Dissolution mai 1940 Pays France Branche Armée de terre Type régiment d'artillerie lourde hippomobile Ancienne dénomination 1er régiment d'artillerie coloniale Inscriptionssur l’emblème Aucune Guerres Seconde Guerre mondiale modifier  Le 111e régiment d'artillerie lourde coloniale (111e RALC) est un régiment d'artillerie des troupes c...

Detachment of the US Air Force ROTC Air Force ROTC Detachment 800UT Air Force ROTC cadets receive Joint Task Force – Civil Support mission brief, Fort Eustis, Virginia, in 2014Founded25 September 1946(77 years, 2 months)(as UT Army Air Corps ROTC)[1][2]Country United StatesBranch United States Air ForceTypeReserve Officer Training CorpsRoleMilitary education and trainingPart ofAir Education and Training CommandAir UniversityAir Force ROTCHostUniversi...

 

French comics artist (born 1956) LoustalLoustal in 2015.BornJacques de Loustal (1956-04-10) 10 April 1956 (age 67)Neuilly-Sur-Seine, FranceNationalityFrenchArea(s)artist, writer, colouristNotable worksNew York Miami Clichés d'Amour Barney and the Blue Note The Boys of Sheriff Street (Les Frères Adamov) Jacques de Loustal (born 10 April 1956) is a French comics artist who uses a painterly style reminiscent of David Hockney. Biography In combination with a career as an illustrator, Loust...

 

  لمعانٍ أخرى، طالع معركة أعزاز (توضيح). معركة أعزاز جزء من حروب الصليبية   معلومات عامة التاريخ 11 يونيو 1125 الموقع مدينة أعزاز36°10′44″N 36°43′10″E / 36.178934°N 36.719484°E / 36.178934; 36.719484  النتيجة انتصار الصليبيين المتحاربون السلاجقة إمارة أنطاكية وكونتية الرها ومم...

30e Europees kampioenschap Bandstoten 1981-1982 EMMELOORD Toernooigegevens Gespeeld in Emmeloord NEDERLAND Speeldata 14 t/m 17 januari 1982 Aantal deelnemers 10 Partijlengte 200 caramboles Aantal wedstrijden 24 Toernooimoyenne 8,25 Records Algemeen moyenne Partijlengte 150: 5,15 - 1954 Walter Lütgehetmann Partijlengte 200: 16,44 - 1981 Raymond Ceulemans Hoogste serie Partijlengte 150: 66 - 1954 Joaquin Domingo Partijlengte 200: 146 - 1976 Raymond Ceulemans Partij moyenne Partijlengte 150: 9,...

 

Latvian football club Football clubSpartaks JūrmalaFull nameJūrmalas Futbola un Peldēšanas skola/Spartaks (Jūrmala Swimming and Football School/Spartaks)Nickname(s)Sarkanbaltie (Red-whites)Founded2007GroundSloka StadiumCapacity2,500ChairmanSpartaks MelkumjansManagerOskars KļavaLeagueVirslīga20228thWebsiteClub website Home colours Away colours Current season FK Spartaks is a Latvian football club that is based in Sloka, Jūrmala. In 2012, they finished 3rd in the Latvian First League ch...

 

American-Iranian actor (born 1974) This biography of a living person needs additional citations for verification. Please help by adding reliable sources. Contentious material about living persons that is unsourced or poorly sourced must be removed immediately from the article and its talk page, especially if potentially libelous.Find sources: Philip Shahbaz – news · newspapers · books · scholar · JSTOR (May 2016) (Learn how and when to remove this temp...

This article does not cite any sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: Inshore powerboat racing – news · newspapers · books · scholar · JSTOR (January 2016) (Learn how and when to remove this template message) A ChampBoat at the 2006 Minneapolis race. Inshore powerboat racing is a form of water-based motorsport using powerboats in sheltered or inla...

 

Ethanol produced from cellulose Cellulosic ethanol is ethanol (ethyl alcohol) produced from cellulose (the stringy fiber of a plant) rather than from the plant's seeds or fruit. It can be produced from grasses, wood, algae, or other plants. It is generally discussed for use as a biofuel. The carbon dioxide that plants absorb as they grow offsets some of the carbon dioxide emitted when ethanol made from them is burned, so cellulosic ethanol fuel has the potential to have a lower carbon footpri...

 

This is a list of current stations of the Oslo Tramway, Norway:[1][2][3][4][5][6][7][8][9][10][11][12] List Schematic diagram A map of the tram network in orange; metro in red Tram meets metro at Forskningsparken The following table lists the name of each station; the line the station is located on; the services (11 through 13 and 17 through 19); the date the station opened. Further details are ava...

Regional viceroy in Qing Empire Jurisdiction of the Viceroy of Yun-Gui in 1911 Viceroy of Yun-GuiChinese nameTraditional Chinese雲貴總督Simplified Chinese云贵总督TranscriptionsStandard MandarinHanyu PinyinYún Guì ZǒngdūGovernor-General of Yun-Gui Provinces and Other Local Areas, in Charge of Military Affairs, Food and Wages and Governor Affairs(full title)Traditional Chinese總督雲貴等處地方提督軍務、糧饟兼巡撫事Simplified Chinese总督云贵等处地...

 

Pay television channel This article may require cleanup to meet Wikipedia's quality standards. The specific problem is: Citations. Please help improve this article if you can. (November 2023) (Learn how and when to remove this template message) Television channel FoxCountryRussiaSpainBroadcast areaArmeniaAzerbaijanEstonia (local version)GeorgiaKazakhstanKyrgyzstanLatvia (local version)LithuaniaMoldovaUkraineProgrammingLanguage(s)EnglishLithuanian (subtitles)Latvian (subtitles)Estonian (subtit...

 

Personnel of the American professional wrestling and entertainment company WWE WWE is an American professional wrestling promotion based in Stamford, Connecticut.[1] It is owned and operated by TKO Group Holdings, a majority owned subsidiary of Endeavor Group Holdings. WWE personnel consists of professional wrestlers, managers, play-by-play and color commentators, ring announcers, interviewers, referees, trainers, producers, script writers, and various other positions. Executives and ...

Indian scientist This article uses bare URLs, which are uninformative and vulnerable to link rot. Please consider converting them to full citations to ensure the article remains verifiable and maintains a consistent citation style. Several templates and tools are available to assist in formatting, such as reFill (documentation) and Citation bot (documentation). (August 2022) (Learn how and when to remove this template message) Purushottam Kashinath KelkarBorn(1909-06-01)1 June 1909Dharwar, Br...

 

ユニバーサル・パークス&リゾーツ > ユニバーサル・スタジオ・ジャパン > ユニバーサル・スタジオ・ジャパンのアトラクション > シュレック4-Dアドベンチャー シュレックシリーズ > シュレック4-Dアドベンチャー シュレック 4-D アドベンチャー ユニバーサル・スタジオ・シンガポールの「Shrek’s 4-D Adventure」 ユニバーサル・スタジオ・フロリ...

 

Come leggere il tassoboxParanyctimene tenax Stato di conservazione Rischio minimo[1] Classificazione scientifica Dominio Eukaryota Regno Animalia Phylum Chordata Classe Mammalia Superordine Laurasiatheria Ordine Chiroptera Sottordine Megachiroptera Famiglia Pteropodidae Sottofamiglia Nyctimeninae Genere Paranyctimene Specie P. tenax Nomenclatura binomiale Paranyctimene tenaxBergmans, 2001 Sottospecie P.t.tenax P.t.marculus Paranyctimene tenax (Bergmans, 2001) è un pipistrello appart...

2017 miniseries directed by Andreas Prochaska MaximilianThe film was partly filmed at Burg Kreuzenstein, which was rebuilt in the nineteenth century as a fictive residence for Maximilian by his great admirer, the Arctic explorer Count Johann Nepomuk Wilczek.[1]Also known asMaximilian – Das Spiel von Macht und LiebeGenreHistorical dramaDirected byAndreas ProchaskaStarringChrista ThéretJannis NiewöhnerJean-Hugues AngladeStefan PohlRaphaël LengletJohannes KrischTobias MorettiSylvie ...

 

Запрос «Харзы» перенаправляется сюда. На эту тему нужно создать отдельную статью. Харза Харза индокитайского подвида (M. f. indochinensis) в национальном парке Кэнгкрачан Научная классификация Домен:ЭукариотыЦарство:ЖивотныеПодцарство:ЭуметазоиБез ранга:Двусторонне-симметри...

 

Strategi Solo vs Squad di Free Fire: Cara Menang Mudah!