STANDS4 LLC, 2020. Definition of tetr-in English Dictionary; Prefix PRE tetr-+-Of or relating to the quantity four. characterized by cleverness or originality of invention or construction. 'Hepatomegaly' and 'hydronephrosis' are among the most frequently looked-up words in September. "tetr-." Updated April 2020. Dictionary.com Unabridged tetr-: , tetr- [Gr. What Is The Difference Between “It’s” And “Its”? tettar- , four] Prefixes meaning four . a combining form meaning “four,” used in the formation of compound words: tetrabranchiate. What does TETR stand for? See also. wordow /wɝdoʊ/ A Clear Window of Words. Amaze your friends with your new-found knowledge! What does tetr- mean? All the latest wordy news, linguistic insights, offers and competitions every month. Form of tetra- used before a vowel. Updated April 2020. From moonshoot to balconing: discover the latest words added to the Collins Dictionary. Web. As a result, TetA and TetR are expressed. Tc normally kills bacteria by binding to the bacterial ribosome and halting protein synthesis. In the absence of tc or analogs like aTc, basal expression of TetR-regulated promoters is low, but expression rises sharply in the presence of even a minute quantity of tc. TetR represses the expression of TetA, a membrane protein that pumps out substances toxic to the bacteria like tc, by binding the tetA operator. Containing four of a specified kind of atom, radical, or group: tetrachloride. There is a binding cavity for tetracycline in the outer helices of the regulatory domain. TetR protein family members are mostly transcriptional repressors, meaning that they prevent the expression of certain genes at the DNA level. anxiety caused by a dread of environmental perils, … Why Do “Left” And “Right” Mean Liberal And Conservative? Meaning; TETR: Tetracycline Repressor (protein) TETR: Telephone Excise Tax Refund (US IRS) TETR: Touchdown Enzyme Time Release (sexually transmitted disease detection) TetR: Three Engineered Tet Repressor (biophysics) 10 Types Of Nouns Used In The English Language. American Heritage® Dictionary of the English Language, Fifth Edition. List of 9 TETR definitions. Other … Prefixes. Our new online dictionaries for schools provide a safe and appropriate environment for children. an anxiety disorder in which patients are driven to repeat the same act, such as washing their hands, over and over again, usually for many hours. The online version of the Collins Dictionary has just been updated again, with another batch of new words and meanings inspired by the events of the summer. https://www.definitions.net/definition/tetr-. Also especially before a vowel, tetr-. There are some words that seem to be of perennial interest, so if you compare the list of words that were looked up most often in March with the words that were looked up most often in September, you will find a lot of words appearing on both lists. [1] (Transcriptional regulators control gene expression.) These proteins contain a helix-turn-helix (HTH) motif that is the DNA-binding domain. Download our English Dictionary apps - available for both iOS and Android. The numerical value of tetr- in Chaldean Numerology is: 6, The numerical value of tetr- in Pythagorean Numerology is: 9. Today, 9 October, is the penultimate day of this year’s World Space Week, a UN event launched in 1999. [2], TetR is used in artificially engineered gene regulatory networks because of its capacity for fine regulation of promoters. Top TETR abbreviation meaning: Tetracycline Repressor 2. Grammatically, this word "tetr-" is a morpheme, more specifically, a prefixe. Tetracycline (tc) is a broad family of antibiotics to which bacteria have evolved resistance. [1][5] These domains mainly consist of a helix-turn-helix (HTH) motif that is common in TetR protein family members (see below). 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All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. https://acronyms.thefreedictionary.com/TETR, This operon is negatively regulated by a transcriptional autoregulatory protein belonging to the, This program is known as the Telephone Excise Tax Refund (. any of several small, brightly colored characin fishes, of tropical American waters. The second helix is considered to be most important for DNA sequence specificity and often recognizes nucleic acids within the major groove of the double helix. [Greek; see k w etwer- in Indo-European roots .] [1] Binding of TetR to its target DNA sequence causes changes in both the DNA and TetR. [6] Although these residues do not directly contact the DNA, they pack against the HTH and this packing is essential for binding. “Epidemic” vs. “Pandemic” vs. “Endemic”: What Do These Terms Mean? These proteins contain a helix-turn-helix (HTH) motif that is the DNA-binding domain. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. We're doing our best to make sure our content is useful, accurate and safe.If by any chance you spot an inappropriate image within your search results please use this form to let us know, and we'll take care of it shortly. dictionary. As of June 2005, this family of proteins had about 2,353 members that are transcriptional regulators. 1. Get instant definitions for any word that hits you anywhere on the web! Grammatically, this word "tetr-" is a morpheme, more specifically, a prefixe. The tetA gene is also present in the widely used E. coli cloning vector pBR322, where it is often referred to by the name of its tetracycline-resistance phenotype, TetR, not to be confused with TetR. The overall structure of TetR can be broken down into two DNA-binding domains (one per monomer) and a regulatory core, which is responsible for tetracycline recognition and dimerization. Learn more. The HTH motifs have mostly hydrophobic interactions with major grooves of the target DNA. Absentee Ballot vs. Mail-In Ballot: Is There A Difference? The differences observed in these other regulatory domains are likely due to differences in the molecules that each family member senses. Information and translations of tetr- in the most comprehensive dictionary definitions … Tetr- definition: four | Meaning, pronunciation, translations and examples [1] Each monomer consists of ten alpha helices connected by loops and turns. Tet Repressor proteins (otherwise known as TetR) are proteins playing an important role in conferring antibiotic resistance to large categories of bacterial species. Tetracycline controlled transcriptional activation, "The TetR family of transcriptional repressors", "The role of the N terminus in Tet repressor for tet operator binding determined by a mutational analysis", https://en.wikipedia.org/w/index.php?title=TetR&oldid=971428619, Creative Commons Attribution-ShareAlike License, This page was last edited on 6 August 2020, at 02:55. Meaning of tetr- for the defined word. carried on abroad, or with other countries. tetr- meaning EN. Dictionary Thesaurus Scrabble Examples Quiz. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. A padlock is a lock which is used for fastening two things together . TetR is one of many proteins in the TetR protein family, which is so named because TetR is the most well characterized member. And best of all it's ad free, so sign up now and start using at home or in the classroom. “Affect” vs. “Effect”: Use The Correct Word Every Time. TETR is listed in the World's largest and most authoritative dictionary database of abbreviations and acronyms TETR is listed in the World's largest and most authoritative dictionary database of abbreviations and acronyms [7] In the majority of the family members, this motif is on the N-terminal end of the protein and is highly conserved. [4] (TetR typically binds tetracycline-Mg2+ complexes inside bacteria, but TetR binding to tetracycline alone has been observed in vitro.). Thanks for your vote! We have almost 200 lists of words from topics as varied as types of butterflies, jackets, currencies, vegetables and knots! Describe 2020 In Just One Word? We truly appreciate your support. [1] The high conservation of the HTH motif is not observed for the other domains of the protein. Space Week falls at this calendar juncture because this first October week is bookended by two key dates. Dictionary, Encyclopedia and Thesaurus - The Free Dictionary, the webmaster's page for free fun content. There is still some debate in the field whether tetracycline derivatives alone can cause this conformational change or whether tetracycline must be in complex with magnesium to bind TetR. (Transcriptional regulators control gene expression.) List of 9 TETR definitions. Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020. The definition of tetr- in Dictionary is as: Of or relating to the quantity four. something representing, represented by, or consisting of four units, such as a playing. Four: tetrode. [3], TetR functions as a homodimer. We know you’ll tackle this quiz totis viribus! Part-of-Speech Hierarchy . 2 : containing four atoms or groups (of a specified kind) tetrachloride. 19 Oct. 2020.