Qhov sib txawv tseem ceeb ntawm calmodulin thiab troponin C yog tias calmodulin tuaj yeem khi nrog cov calcium ions nkaus xwb thaum troponin C tuaj yeem khi nrog ob qho tib si calcium thiab magnesium ions.
Calmodulin thiab troponin C yog cov proteins hauv eukaryotes. Ob leeg ua raws li calcium-binding messenger proteins. Qhov tseem ceeb tshaj, calmodulin tuaj yeem khi nrog cov calcium nkaus xwb thaum troponin C tuaj yeem khi nrog ob qho tib si calcium thiab magnesium.
Calmodulin yog dab tsi?
Calmodulin yog hais txog calcium modulated protein. Nws tuaj yeem pom hauv txhua lub hlwb eukaryotic. Nws tuaj yeem ua tau raws li kev ua haujlwm ntau yam nruab nrab calcium-binding protein. Cov protein no ua raws li lub hom phiaj intercellular rau cov tub txib theem nrab calcium ions. Tsis tas li ntawd, rau kev ua kom cov protein ntau calmodulin, kev khi ntawm cov tub txib thib ob calcium ions yog qhov tsim nyog. Thaum nws tau qhib, nws tuaj yeem ua ib feem ntawm calcium teeb liab transduction txoj kev.
Daim duab 01: Calmodulin
Thaum xav txog cov qauv ntawm cov protein no, nws yog cov protein me me uas muaj txog 148 amino acids. Nws muaj kwv yees li ob thaj tsam globular. Txhua cheeb tsam no muaj ob lub EF-tes motifs uas tuaj yeem khi nrog cov calcium ions. Muaj ib cheeb tsam txuas yooj yim ntawm cov cheeb tsam globular no. Yog li ntawd, lub calmodulin molecule muaj plaub qhov chaw rau calcium ion binding.
Ntxiv mus, cov protein calmodulin tuaj yeem khi nrog ntau hom phiaj molecules. Yog li ntawd, nws yog ib qho tseem ceeb heev kom muaj kev hloov pauv hauv cov protein no. Lub generic zoo ntawm cov tsis-polar grooves nyob rau hauv cov chaw khi cia nws khi nrog ntau hom phiaj.
Troponin C yog dab tsi?
Troponin C yog cov protein uas muaj nyob hauv ib feem ntawm troponin complex. Muaj plaub EF motifs hauv troponin C molecule rau kev sib txuas ntawm calcium ions. Tsis tas li ntawd, cov protein no muaj nyob rau hauv cov khoom hauv nyias nyias ua ke nrog actin thiab tropomyosin.
A troponin C molecule muaj ob lub lobes: N lobe thiab C lobe. C lobe yog ib qho tseem ceeb raws li cov qauv tsim thiab pab khi rau N domain ntawm troponin I. Tsis tas li ntawd, C lobe tuaj yeem khi nrog cov calcium ions lossis magnesium ions. Txawm li cas los xij, N lobe khi tsuas yog nrog calcium ions. Nws yog txoj cai lobe ntawm cov protein no thiab tom qab sib tw nrog calcium ion, nws tuaj yeem khi nrog C tus thawj ntawm troponin I.
Daim duab 02: Cov qauv thiab khi ntawm Troponin C
Muaj ob hom troponin C ua qeeb troponin thiab ceev troponin. Ntxiv mus, muaj ntau qhov kev hloov pauv rau cov protein no thiab. Cov kev hloov pauv no tuaj yeem ua rau muaj kev hloov pauv ntawm troponin C thiab hauv kev sib txuas ntawm calcium thiab magnesium ions ib yam nkaus. Cov kev hloov pauv no tuaj yeem ua rau muaj qhov txawv txav ntawm cov leeg nqaij.
Qhov txawv ntawm Calmodulin thiab Troponin C yog dab tsi?
Calmodulin thiab troponin C yog cov proteins hauv eukaryotes. Ob leeg cov proteins no muaj plaub EF-tes motifs uas tuaj yeem khi nrog calcium (thiab/lossis magnesium) ions. Txawm li cas los xij, qhov sib txawv tseem ceeb ntawm calmodulin thiab troponin C yog tias calmodulin tuaj yeem khi nrog cov calcium ions nkaus xwb thaum troponin C tuaj yeem khi nrog ob qho tib si calcium thiab magnesium ions.
Hauv qab infographic qhia txog qhov sib txawv ntawm calmodulin thiab troponin C.
Summary – Calmodulin vs Troponin C
Calmodulin thiab troponin C yog cov proteins hauv eukaryotes. Qhov sib txawv tseem ceeb ntawm calmodulin thiab troponin C yog tias calmodulin tuaj yeem khi nrog cov calcium ions nkaus xwb thaum troponin C tuaj yeem khi nrog ob qho tib si calcium thiab magnesium ions.
