Cov txheej txheem:
- coiled-coils pom nyob qhov twg?
- coil-coils tuav ua ke li cas?
- Cov qauv coiled yog dab tsi?
- Puas muaj qhov sib txawv ntawm Helix thiab kauj?
Video: Thaum twg coils tsim?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
3.2. Coiled coils yog tsim thaum ob lossis ntau dua α-helices nws tus kheej sib sau ua ke los ntawm kev sib txuas ua ke los tsim ib sab laug-tes supercoil (Fig. 3.1C). Txawm hais tias dimers, trimers, thiab tetramers yog cov qauv siv ntau tshaj plaws, cov coiled-coils loj dua txog li xya helices tam sim no tuaj yeem raug tsim los [8].
coiled-coils pom nyob qhov twg?
Coiled-coils muaj nyob hauv proteins thoob plaws peb lub nceeg vaj ntawm lub neej. Coiled-coil domains ntawm qee cov proteins yuav luag tsis sib xws hauv ntu thiab ntev, ntxeev siab rau cov qauv thiab kev ua haujlwm rau cov amino acids raws li tag nrho ntev ntawm coiled-coil.
coil-coils tuav ua ke li cas?
Ib coiled-coil lossis superhelix yog tsim los ntawm coiling ob, peb lossis plaub α-helices ua ke. Cov helical strands tau tuav ua ke los ntawm lub zog hydrophobic tsim ntawm cov saw hlau tsis muaj polar los ntawm cov peptide sib txawv.
Cov qauv coiled yog dab tsi?
Coiled coils yog α-helical cov qauv uas cov helices raug mob ib ncig ntawm ib leeg los tsim cov pob khoom superhelical. Lawv feem ntau muaj ob lossis peb lub helices nyob rau hauv parallel lossis antiparallel orientation, tab sis cov qauv nrog xya thiab ntau dua helices tau txiav txim siab.
Puas muaj qhov sib txawv ntawm Helix thiab kauj?
Helix yog cov qauv thib ob thiab coiled coil yog cov qauv supersecondary tab sis ob qho tib si yog qhov tshwm sim ntawm sib cuam tshuam rogntawm cov amino acid uas nyob ib sab nyob ib ncig ntawm daim ntawv cog lus peptide.
Pom zoo:
Thaum twg tus neeg tsim khoom tsim tawm?
Raws li lwm qhov chaw, tus onager tau tsim nyob rau hauv tim Nkij teb chaws xyoo 385 BCE los ntawm tus kws kho tsheb Ammianus Marcellinus (Robert M. Jurga). Lub zog jerk thiab lub tshuab nqa ntawm txhua qhov kev txhaj tshuaj, Loos hu ua "
Thaum ignition coils phem?
Cov kauj tsis raug yuav ua rau lub tsheb muaj kev paub misfires, tsis muaj zog, poob ntawm lub zog thiab nrawm, thiab txo qis roj mileage. Qee zaum cov teeb meem kev ua haujlwm tseem tuaj yeem ua rau lub tsheb nres . Dab tsi yog qhov cim ntawm qhov hluav taws kub tsis zoo?
Qhov twg thiab thaum twg yog qhov chaw ua haujlwm ntawm thawj kws kho mob kws kho mob tau tsim?
Nyob rau hauv 44 BC, ntawm thawj qhov keeb kwm ntawm kev tshuaj ntsuam xyuas kab mob tshwm sim tam sim ntawd tom qab lub sleighing ntawm Julius Caesar los ntawm nws cov neeg koom tes. Tus kws tshuaj xyuas lub sijhawm ntawd xaus lus tias ntawm 23 qhov txhab pom ntawm lub cev tsuas yog ib tus neeg tuag xwb .
Thaum twg tsim khoom tsim?
Thawj qhov kev hloov pauv loj hauv kev tsim khoom lag luam tau los thaum lub sijhawm peb tam sim no hu ua Industrial Revolution. Qhov no yog kev hloov pauv uas tshwm sim hauv 18th caug xyoo qhov twg, tsis yog cov khoom tsim los ntawm tes, cov txheej txheem tau tsim tawm uas tso cai rau cov khoom tsim los ntawm cov tshuab .
Puas hloov dua tshiab ignition coils puas tsim nyog?
Lub kauj txoj haujlwm yog rub lub zog los ntawm lub roj teeb thiab txhawb nws rau qhov hluav taws kub. Txawm hais tias ua haujlwm nrog cov pob coil los yog cov kaus poom style coils, qhov zoo ntawm cov kauj hloov kho ua rau rau qhov kub kub Ua kom kub kub ua kom yooj yim rau hlawv roj thiab cua sib tov.
