Qhov tsis muaj kev sib khi heme hauv myoglobin thiab hemoglobin tuaj yeem sib txawv yooj yim los ntawm cov pab pawg sib tw heme prosthetic txuas nrog cytochrome c los ntawm kev siv kev sib tsoo induced dissociation hauv thaj tsam dawb dav hlau nthuav dav ntawm qhov loj spectrometer nrog rau hauv kev sib tsoo quadrupole nrog premass xaiv.
YHim ua li cas khi rau hemoglobin?
Heme Group
Nyob rau hauv hemoglobin, txhua lub subunit muaj ib pawg heme, uas yog tso tawm kom pom siv lub pob-thiab-loj sawv cev hauv daim duab 2. Txhua pawg heme muaj cov hlau atom uas yog muaj peev xwm khi rau ib qho pa oxygen (O2) molecule Yog li, txhua hemoglobin protein tuaj yeem khi plaub lub molecules oxygen.
Puas yog heme covalently khi rau globin?
Ib pawg heme muaj cov hlau (Fe) ion tuav hauv lub nplhaib heterocyclic, hu ua porphyrin. … Lub hlau yog khi ruaj khov (covalently) rau cov protein globular ntawm N atoms ntawm lub nplhaib imidazole ntawm F8 histidine residue (tseem hu ua proximal histidine) hauv qab lub nplhaib porphyrin.
Him yog dabtsi?
Txhua pawg heme muaj cov hlau atom uas tuaj yeem khi rau ib qho oxygen (O2) molecule. Vim tias hemoglobin muaj plaub pawg heme, txhua hemoglobin protein tuaj yeem khi plaub lub molecules oxygen.
Puas yog ntshav?
Hemes feem ntau pom tau tias yog cov khoom ntawm hemoglobin, cov xim liab hauv cov ntshav, tab sis kuj pom muaj nyob hauv ntau lwm yam tseem ceeb hemoproteins xws li myoglobin, cytochromes, catalases., heme peroxidase, thiab endothelial nitric oxide synthase.
