Cov txheej txheem:

Yuav ua li cas cov protein tswj cov kev qhia gene?
Yuav ua li cas cov protein tswj cov kev qhia gene?

Video: Yuav ua li cas cov protein tswj cov kev qhia gene?

Video: Yuav ua li cas cov protein tswj cov kev qhia gene?
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Kaum ib hlis
Anonim

Eukaryotic gene qhia yog tswj thaum transcription thiab RNA ua, uas tshwm sim nyob rau hauv lub nucleus, thiab thaum lub sij hawm protein ntau txhais lus, uas tshwm sim nyob rau hauv lub cytoplasm. Ntxiv mus kev cai tuaj yeem tshwm sim los ntawm kev hloov kho tom qab kev txhais lus ntawm cov proteins.

Tsis tas li ntawd, cov proteins cuam tshuam li cas rau cov kev qhia gene?

Feem ntau noob muaj cov ntaub ntawv xav tau los ua cov molecules ua haujlwm hu ua cov proteins . (Ib ob peb noob tsim lwm cov molecules uas pab lub cell sib sau ua ke cov proteins .) Kev taug kev los ntawm noob rau protein ntau yog complex thiab nruj tswj nyob rau hauv txhua lub cell. Ua ke, transcription thiab translation yog hu ua gene qhia.

Koj tswj cov kev qhia gene li cas? Cov txheej txheem ntawm kev tswj cov noob muaj xws li:

  1. Regulating tus nqi ntawm transcription.
  2. Kev tswj hwm kev ua haujlwm ntawm RNA molecules, suav nrog lwm txoj kev sib txuas los tsim ntau dua ib qho khoom lag luam protein los ntawm ib lub noob.
  3. Regulating stability ntawm mRNA molecules.
  4. Tswj tus nqi txhais lus.

Yog li ntawd, dab tsi yam tseem ceeb tswj gene qhia?

Cov hauv qab no yog cov npe ntawm cov theem uas cov noob qhia tau tswj hwm, qhov feem ntau siv cov ntsiab lus yog Transcription Initiation:

  • Chromatin domains.
  • Kev sau ntawv.
  • Post-transcriptional hloov kho.
  • RNA thauj.
  • Kev txhais lus.
  • Kev degradation ntawm mRNA.

Cov proteins tswj tau li cas?

Ib txhia cov proteins yog tswj los ntawm cov tsis-covalent binding ntawm me me molecules, xws li amino acids los yog nucleotides, uas ua rau ib tug hloov nyob rau hauv lub conformation thiab yog li, cov kev ua ntawm lub protein ntau . Ib txhia cov proteins yog tswj los ntawm phosphorylation (qhov sib ntxiv ntawm phosphate pawg) ntawm cov amino acids tshwj xeeb ntawm cov protein ntau.

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