Kugonjera ndi gawo lofunikira kwambiri pa mawonekedwe atatu a mapuloteni ambiri. Zomangira zolumikizana izi zitha kupezeka pafupifupi ma toplellular ndi mamolekyulu.
Chomangira chochotseredwa chimapangidwa pomwe Cysteine atomu amapangira mgwirizano umodzi wa Coovale ndi theka lina la cystine sulfure atomu m'malo osinthira. Ma tend amathandizira kukhazikika mapuloteni, makamaka omwe amatulutsidwa pamaselo.
Mapangidwe abwino kwambiri a zomangirira pamavuto amafunikanso magawo angapo monga kasamalidwe ka amino, kuteteza amino admied, njira zotetezera, komanso njira zotetezera.
Peptides adalumikizidwa ndi zomangira zolumikizidwa
Gutuo chamoyo chimakhala ndi ukadaulo wokhwima. Ngati peputiyi imakhala ndi zikwangwani chimodzi zokha, mapangidwe owuma cholumikizira ndi osasunthika. Ma Peptides amaphatikizidwa mu magawo olimba kapena amadzimadzi,
Kenako anali oxididwe mu phi8-9 yankho. Synthesis ndi yovuta kwambiri pomwe awiriawiri kapena kuposerapo kwa zomangira zimayenera kupangidwa. Ngakhale kupangika kwamphamvu kumatsirizika nthawi zambiri kumamalizidwa mochedwa mu syreme, nthawi zina kumayambitsa zovuta zomwe zimasindikizidwa ndi kopindulitsa pakulumikiza kapena kukhala ndi maunyolo oyambira. Bzl ndi CYS yoteteza gulu, Meb, gulu, TBTR, TMTR, TMTR, Act, etc., amagwiritsidwa ntchito momveka bwino. Timakhala ndi chiyembekezo cha dialilphimbetsa izi:
1. Awiriawiri a zomangira zolumikizidwa zimapangidwa mkati mwa molekyulu ndi awiriawiri a zomangira zogwirizanitsa zimapangidwa pakati pa mamolekyulu
2. Awiriawiri a zomangira zolumikizidwa zimapangidwa mkati mwa molekyulu ndi awiriawiri a zomangira zolumikizidwa pakati pa mamolekyulu
3.
4. Kuphatikizika kwa magulu awiri ogwirizanitsa
Kodi ndichifukwa chiyani amino gulu la amino (CYY) apadera?
Chingwe cha Cys chimakhala ndi gulu logwira ntchito kwambiri. Maatomu a hydrojeni mu gululi amasinthidwa mosavuta ndi ma radicals aulere ndi magulu ena, ndipo motero amatha kupanga ma molekyulu ena.
Zogwirizana ndi zodetsa ndi gawo lofunikira pa kapangidwe ka 3D ya mapuloteni ambiri. Maulalo a Bridnightive Bridge imatha kuchepetsa peputiyi, onjezani kuuma, ndikuchepetsa kuchuluka kwa zithunzi. Kuthekera kwa chithunzichi ndikofunikira pazinthu zachilengedwe komanso kukhazikika mwapangidwe. Kusintha kwake kumatha kukhala kwakukulu kwa mapuloteni. Hydrophobic Amino Acids monga mame, ile, Val ndi chikhazikitso cha Helix. Chifukwa imalimbitsa disiridiside-bond α-herdine ya mapangidwe a chymine a cyymine ngakhale cysteine sakupanga zomangira. Ndiye kuti, ngati zotsalira zonse za Cybane zinali m'malo ochepetsedwa, (--sh, zonyamula magulu a sulfphydryl), zidutswa zambiri zochulukirapo zingatheke.
Ndalama zolipidwa zopangidwa ndi Cysteine zimakhala zolimba kukhazikika kwa mawonekedwe a kortiary. Nthawi zambiri, milatho ya S-S Pakati pa magwiridwe ndizofunikira pakupanga mitundu ya Quamartimary. Nthawi zina zotsalira za Cysteine zomwe zimapangitsa kuti zomangira zikhale zosatalikirana kwambiri. Pempholo la ndalama zolipirira ndi maziko owunikira mapuloteni apadera oyambira. Zotsalira za Cysteine za mapuloteni owada omwe amasungidwa kwambiri. Tryptophan yokhayo inali yokhazikika kuposa Cysteine.
Cysteine imapezeka pakatikati pa malo a catalytic a Thiolase. Cysteine imatha kupanga ma acyl acyl apakatikati ndi gawo lapansi. Fomu yochepetsedwa imachita ngati "sulfar bufffer" yomwe imasunga Cysteine mu mapuloteni m'malo ochepetsedwa. Pamene pH ili yotsika, yofanana yofanana ndi mawonekedwe ochepetsedwa - pomwe m'madera a alkaline - imakonda kukhala ozizira kuti apange -S, ndi atomu hydrogen.
Cysteine imathanso kuchitira ndi hydrogen peroxide ndi organic peroxides ngati detoxint.
Post Nthawi: 2025-07-02