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protamines

См. также в других словарях:

  • protamines — protaminai statusas T sritis chemija apibrėžtis Baziniai baltymai, su DNR sudarantys kompleksus. atitikmenys: angl. protamines rus. протамины …   Chemijos terminų aiškinamasis žodynas

  • protein — proteinaceous /proh tee nay sheuhs, tee i nay /, proteinic, proteinous, adj. /proh teen, tee in/, n. 1. Biochem. any of numerous, highly varied organic molecules constituting a large portion of the mass of every life form and necessary in the… …   Universalium

  • Protamine — protein Name=protamine 1 caption= width= HGNCid=9447 Symbol=PRM1 AltSymbols= EntrezGene=5619 OMIM=182880 RefSeq=NM 002761 UniProt=P04553 PDB= ECnumber= Chromosome=16 Arm=p Band=13.13 LocusSupplementaryData=protein Name=protamine 2 caption= width …   Wikipedia

  • Protamine — Les protamines sont des petites protéines nucléaires riches en arginine, qui remplacent des protéines de transition qui avaient remplacé les histones des futurs gamètes mâles pendant la phase précoce de la spermiogenèse. On pense que ce… …   Wikipédia en Français

  • Spermiogenese — Spermiogenèse La spermiogénèse, étape finale de la spermatogenèse, est le processus de différenciation progressive des spermatides en spermatozoïdes. Elles est caractérisée par des transformations morphologiques radicales. On peut les subdiviser… …   Wikipédia en Français

  • Protein — A large molecule composed of one or more chains of amino acids in a specific order determined by the base sequence of nucleotides in the DNA coding for the protein. Proteins are required for the structure, function, and regulation of the body s… …   Medical dictionary

  • protéine — [ prɔtein ] n. f. • 1838; gr. prôtos « premier » et ine ♦ Macromolécule organique azotée, de poids moléculaire élevé, qui donne par hydrolyse des acides aminés et entre pour une forte proportion dans la constitution des êtres vivants. Protéines… …   Encyclopédie Universelle

  • Chromatin — The major structures in DNA compaction; DNA, the nucleosome, the 10nm beads on a string fibre, the 30nm fibre and the metaphase chromosome Chromatin is the combination of DNA and proteins that make up the contents of the nucleus of a cell. The… …   Wikipedia

  • Nucleosome — Nucleosomes are the basic unit of DNA packaging in eukaryotes, consisting of a segment of DNA wound around a histone protein core.[1] This structure is often compared to thread wrapped around a spool.[2] Nucleosomes form the fundamental repeating …   Wikipedia

  • Disulfide bond — In chemistry, a disulfide bond (Br.E. disulphide bond) is a covalent bond, usually derived by the coupling of two thiol groups. The linkage is also called an SS bond or disulfide bridge. The overall connectivity is therefore R S S R. The… …   Wikipedia

  • Spermatid — Infobox Anatomy Name = Spermatid Latin = GraySubject = 258 GrayPage = 1243 Caption = Germinal epithelium of the testicle. 1: basal lamina 2: spermatogonia 3: spermatocyte 1st order 4: spermatocyte 2nd order 5: spermatid 6: mature spermatid 7:… …   Wikipedia

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