Cov txheej txheem:

Dab tsi yog 2 hom proteins pom nyob rau hauv cell membrane?
Dab tsi yog 2 hom proteins pom nyob rau hauv cell membrane?

Video: Dab tsi yog 2 hom proteins pom nyob rau hauv cell membrane?

Video: Dab tsi yog 2 hom proteins pom nyob rau hauv cell membrane?
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Kaum ib hlis
Anonim

2 yog cov ntaub ntawv uas muaj nyob rau hauv integral membrane proteins , xws li, transmembrane α-helix protein ntau , transmembrane α-helical protein ntau thiab transmembrane β-daim ntawv protein ntau . Ib qho monotopic cov proteins yog ib hom ntawm integral membrane proteins uas txuas nrog tsuas yog ib sab ntawm lub daim nyias nyias thiab tsis txhob hla tag nrho txoj kev hla.

Yog li ntawd, ob hom proteins nyob rau hauv lub cell membrane yog dab tsi?

Koj yuav kawm txog ob hom ntawm membrane proteins : peripheral cov proteins thiab integral cov proteins.

Tsis tas li ntawd, hom membrane proteins thiab lawv txoj haujlwm yog dab tsi? Lawv txoj haujlwm yog tsuas yog los tswj kev thauj ntawm cov molecules tshwj xeeb thoob plaws lub daim nyias nyias . Nyob ntawd yog ob qho yooj yim hom ntawm transmembrane cov proteins , alpha-helical thiab beta-barrels, uas tau tham hauv Organic Compounds: Cov protein (Advanced).

Yog li ntawd, 6 hom membrane proteins yog dab tsi?

6 Yam tseem ceeb ntawm Membrane Proteins (nrog daim duab)

  • Peripheral (Extrinsic) Proteins:
  • Integral (Intrinsic) Proteins:
  • Integral Proteins Uas Tshaj Tawm Membrane:
  • Asymmetric Distribution ntawm Membrane Proteins:
  • Mobility ntawm Membrane Proteins:
  • Enzymatic Properties ntawm Membrane Proteins:
  • Ectoenzymes thiab Endoenzymes:
  • Kev rho tawm thiab tus yam ntxwv ntawm Membrane Proteins:

Ob hom thauj proteins yog dab tsi?

Carrier proteins thiab channel proteins yog ob chav loj ntawm daim nyias nyias thauj cov protein. Carrier proteins (tseem hu ua carriers, permeases, los yog transporters) khi cov ntsiab lus uas yuav tsum tau thauj thiab undergo ib tug series ntawm conformational kev hloov pauv mus rau lub bound solute thoob plaws lub daim nyias nyias (Daim duab 11-3).

Pom zoo: