2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Peptide daim ntawv cog lus muaj cov phiaj xwm, hloov pauv, teeb tsa thiab nkag mus kev sib hloov me melossis twisting ib ncig ntawm amide daim ntawv cog lus uas txuas cov α-amino nitrogen ntawm ib qho amino acid rau carbonyl carbon. ntawm cov tom ntej (Daim duab 4-1).
Vim li cas kev sib hloov ntawm peptide daim ntawv cog lus txwv tsis pub?
Vim li cas kev sib hloov ntawm peptide daim ntawv cog lus txwv tsis pub, thiab dab tsi yog qhov tshwm sim ntawm qhov tsis muaj kev sib hloov? Daim ntawv cog lus peptide muaj ib feem ob daim ntawv cog lus, uas tiv thaiv kev sib hloov. Qhov tsis muaj kev sib hloov no txwv qhov kev hloov pauv ntawm peptide qaum qaum thiab txwv cov qauv tsim tau.
Peptide bonds Khoov?
Txij li lub pob txha ntawm polypeptide, tuav ua ke los ntawm peptide daim ntawv cog lus, yog yoog raws (vim "kev sib hloov ntawm txhua daim ntawv cog lus"), cov saw tuaj yeem khoov, ntswj, thiab flex mus rau hauv ntau yam loj ntawm peb seem duab.
Peptide daim ntawv cog lus puas thim rov qab?
Txawm hais tias peptide daim ntawv cog lus kev tsim tuaj yeem thim rov qab los ntawm kev ntxiv dej (hydrolysis), amide bonds ruaj khov hauv dej ntawm nruab nrab pH, thiab hydrolysis ntawm peptide bonds hauv hlwb kuj tseem tswj tau enzymatically.
Peptide daim ntawv cog lus puas muaj kev taw qhia?
Txawm hais tias lub geometry ntawm pab pawg peptide yog tsau, cov ntawv cog lus ntawm ob sab ntawm alpha carbons tuaj yeem tig. Qhov no tso cai rau kev hloov pauv hauv peptide qaum. … Cov kab ke ntawm cov amino acids hauv cov protein muaj kev taw qhia lossiskev taw qhia uas txhais los ntawm cov pab pawg ua haujlwm ntawm qhov kawg ntawm cov saw hlau.
Pom zoo:
Nyob rau hauv daim ntawv cog lus cog lus cov pawnee hloov?
Kev cog lus Hauv kev cog lus, tus neeg txais nyiaj hloov pauv / tso nws cov khoom rau Pawnee raws li kev ruaj ntseg tiv thaiv tus nqi uas nws tau txais los ntawm Pawnee. Tus neeg txais nyiaj muaj lub luag haujlwm them tus nqi rov qab rau tus Pawnee thiab tus Pawnee muaj lub luag haujlwm rov qab cov khoom tom qab tus neeg txais nyiaj them tus nqi.
Puas yog daim ntawv cog lus tsis muaj tseeb ib yam li cov ntawv cog lus tsis muaj lawm?
Daim ntawv cog lus tsis muaj nuj nqis yog qhov kev pom zoo uas tsis muaj kev cai lij choj txhua yam vim muaj qee yam tsis xws luag. Nws suav tias tsis muaj thiab tsis muaj nyob txij thaum pib thiab tsis tuaj yeem pom zoo los ntawm txoj cai. Daim ntawv cog lus tsis zoo no yog qhov 'kev cog lus tsis muaj tseeb' vim tias 'kev cog lus' yuav tsum muaj txoj cai lij choj.
Puas yog daim ntawv cog lus yog daim ntawv cog lus siv tau?
Vim a daim ntawv cog lus tsis yog daim ntawv cog lus tseeb, kev lees paub ntawm kev sib nrig tsis tsim nyog, thiab lub tsev hais plaub yuav txiav txim siab yam tsis xav txog lub hom phiaj ntawm ob tog. Thaum ib tog foob rau kev puas tsuaj raws li daim ntawv cog lus, kev kho mob feem ntau yog rov qab los yog rov qab los raws li kev xav ntawm quantum meruit.
Puas yog daim ntawv cog lus tom qab kev cog lus hauv California?
Tsuav koj qhov kev pom zoo ua tiav California txoj cai lij choj, cov tsev hais plaub yuav txiav txim siab tias nws siv tau txawm tias koj tau sib yuav ntev npaum li cas. Qhov tseeb, kev cog lus tom qab yug me nyuam yog feem ntau ntawm cov niam txiv uas tau sib yuav tau ntau xyoo, raws li lawv nkag siab zoo dua qhov ntau npaum li cas txhua tog tau nce lossis poob.
Lub sijhawm saw elongation peptide daim ntawv cog lus yog tsim?
Thaum lub sijhawm txhais lus, elongation ntawm polypeptide tshwm sim los ntawm kev sib ntxiv ntawm cov amino acids sib txawv. Tsim ntawm thawj thiab tom qab peptide daim ntawv cog lus tshwm sim ntawm dawb-COOH pawg ntawm peptidyl tRNA ntawm P site thiab dawb NH2 pawg aminoacyl tRNA ntawm ib qhov chaw nrog kev pab ntawm peptidyl transferase enzyme.
