Txoj kev pentose phosphate tshwm sim hauv cytosol ntawm cell, tib qhov chaw raws li glycolysis. Ob yam khoom tseem ceeb tshaj plaws los ntawm cov txheej txheem no yog ribose-5-phosphate qab zib siv los ua DNA thiab RNA, thiab NADPH molecules uas pab tsim lwm cov molecules.
Puas yog txoj kev pentose phosphate tshwm sim hauv lub hlwb?
Txoj kev pentose phosphate (PPP) yog ib qho qhov tseem ceeb hauv txoj hauv kev hauv cov piam thaj metabolism hauv lub hlwb. Raws li ib txwm muaj, PPP plays ib feem me ntawm tag nrho cov qabzib noj.
Puas yog txoj hauv kev pentose phosphate tshwm sim hauv daim siab?
NADPH-siv txoj hauv kev, xws li fatty acid synthesis, tsim NADP+, uas txhawb nqa cov piam thaj-6-phosphate dehydrogenase los tsim NADPH ntau dua. Hauv cov tsiaj nyeg, PPP tshwm sim tshwj xeeb hauv cytoplasm; Nws tau pom tias ua haujlwm tshaj plaws hauv daim siab, qog mammary, thiab adrenal cortex.
Puas pentose phosphate txoj kev tshwm sim hauv cov leeg?
DIRECT oxidation ntawm qabzib-6-phosphate los ntawm txoj kev pentose phosphate paub tias tshwm sim hauv ntau yam tsiaj cov ntaub so ntswg. … Qhov kev ua ntawm cov enzymes no nyob rau hauv cov pob txha pob txha yog qhov tsawg heev piv nrog rau feem ntau ntawm lwm cov ntaub so ntswg mammalian kawm1.
Pentose phosphate txoj haujlwm yog dab tsi?
Txoj kev pentose phosphate ua tau raws li qhov xav tau ntawm txhua yam kab mob rau qhov chaw ntawm nicotinamide adenine dinucleotide phosphate (NADPH) los siv hauv kev txo qis biosynthesis, xws li fatty acid, cholesterol, neurotransmitter, thiab nucleotide biosynthesis, thiab synthesizes tsib-carbon suab thaj (Daim duab 1).
