Papepalali, ma amino acid awiri ofunikira, glycine (Gly) ndi alanine (Ala), akufotokozedwa.Izi zili choncho makamaka chifukwa amatha kukhala ngati ma amino acid oyambira ndipo kuwonjezera magulu kwa iwo kumatha kupanga mitundu ina ya ma amino acid.
Glycine ali ndi kukoma kokoma kwapadera, kotero dzina lake la Chingerezi limachokera ku Greek glykys (lokoma).Kumasulira kwachi China kwa glycine sikuli ndi tanthauzo la "lokoma", komanso kuli ndi matchulidwe ofanana, omwe angatchedwe chitsanzo cha "kukhulupirika, kupindula ndi kukongola".Chifukwa cha kukoma kwake kokoma, glycine nthawi zambiri amagwiritsidwa ntchito ngati zokometsera muzakudya kuti achotse zowawa ndikuwonjezera kukoma.Unyolo wam'mbali wa glycine ndi wawung'ono wokhala ndi atomu imodzi yokha ya haidrojeni.Izo zimamupangitsa iye kukhala wosiyana.Ndi amino acid wofunikira popanda chirality.
Glycine mu mapuloteni amadziwika ndi kukula kwake kochepa komanso kusinthasintha.Mwachitsanzo, mawonekedwe atatu a helix a collagen ndi apadera kwambiri.Payenera kukhala glycine m'modzi pa zotsalira ziwiri zilizonse, apo ayi zitha kuyambitsa chotchinga chochuluka kwambiri.Momwemonso, kulumikizana pakati pa magawo awiri a mapuloteni nthawi zambiri kumafunikira glycine kuti apereke kusinthasintha kosinthika.Komabe, ngati glycine imasinthasintha mokwanira, kukhazikika kwake sikukwanira.
Glycine ndi imodzi mwazowononga panthawi yopanga α-helix.Chifukwa chake ndi chakuti maunyolo am'mbali ndi ochepa kwambiri kuti akhazikitse conformation nkomwe.Kuphatikiza apo, glycine nthawi zambiri imagwiritsidwa ntchito popanga njira zosungira.Inu omwe mumachita electrophoresis nthawi zambiri mumakumbukira izi.
Dzina lachingerezi la alanine limachokera ku German acetaldehyde, ndipo dzina lachi China ndilosavuta kumva chifukwa alanine ili ndi ma carbons atatu ndipo dzina lake la mankhwala ndi alanine.Ili ndi dzina losavuta, monga momwe alili amino acid.Unyolo wam'mbali wa alanine uli ndi gulu limodzi lokha la methyl ndipo ndi lokulirapo pang'ono kuposa la glycine.Nditajambula makonzedwe a ma amino acid ena 18, ndinawonjezera magulu ku alanine.M'mapuloteni, alanine ali ngati njerwa, zomangira zomwe sizimatsutsana ndi aliyense.
Unyolo wam'mbali wa alanine uli ndi cholepheretsa pang'ono ndipo uli mu α-helix, yomwe ndi conformation.Imakhalanso yokhazikika kwambiri ikapindidwa β.Muukadaulo wamapuloteni, ngati mukufuna kusintha amino acid popanda puloteni yomwe mukufuna, mutha kuyisintha kukhala alanine, zomwe sizosavuta kuwononga mawonekedwe onse a protein.
Nthawi yotumiza: May-29-2023