13.4. Cov qauv alpha helix ua kom zoo dua ntawm hydrogen daim ntawv cog lus ntawm CO thiab NH pawg ntawm cov saw tseem ceeb kom ruaj khovCov pab pawg CO ntawm txhua cov amino acid tsim ib daim ntawv cog lus hydrogen nrog NH pawg amino acid plaub. residues ua ntej ntawm qhov sib lawv liag. … Yog li, tag nrho cov alpha helices hauv cov proteins yog sab xis.
Puas alpha helices yog txoj cai lossis sab laug?
Proteins feem ntau muaj sab tes xis alpha helices, whereas sab laug-tes alpha helices tsis tshua muaj nyob rau hauv qhov xwm txheej. Peptides ntawm 20 amino acids los yog tsawg dua cov protein helices tsis tsim thermodynamically ruaj khov alpha helices nyob rau hauv dej deb ntawm cov protein ib puag ncig.
Vim li cas alpha helices tsawg tsawg?
Ib qhov muaj peev xwm ntawm cov ntaub ntawv yog txheej me me, sib txuas sab laug-tes tig thiab helices hauv cov protein. Cov no tsis tshua muaj vim rau qhov kev sib cuam tshuam tsis zoo uas yuav tsum tau tso L-amino acids hauv αL conformation.
Vim li cas helix sab xis?
Biopolymer chirality yog qhov tseeb txiav txim los ntawm monomer chirality: l-amino acids tuaj yeem tsim tsuas yog sab tes xis α-helices hauv cov qauv protein thib ob, thiab DNA ib txwm coils mus rau sab xis es tsis yog sab laug-tes B-daim ntawv ob lub helix vim nws yog ua los ntawm d-sugars Vim li cas?
Vim li cas cov proteins sab xis?
Txawm tias tib neeg feem coob yog sab xis, peb cov proteins yog tsim los ntawm sab laug molecules. … Tab sis ib txoj kev tshawb fawb tshiab qhia tias qhov no yuav yog vim lub hnub qub tsim huab uas tsim thawj zaug uas muaj roj ntsha molecule, ua ntej peb lub hnub yug, ua rau sab laug.
