Tsis zoo li cov proteins, nucleic acids tsis muaj leej faj… Txhawm rau cuam tshuam cov piam thaj txawv txawv, chromosomal nucleic acids hu ua deoxyribonucleic acids, abbreviated DNA. Analogous nucleic acids uas cov khoom qab zib yog ribose yog hu ua ribonucleic acids, abbreviated RNA.
Nucleic acid muaj dab tsi?
Nucleic acids muaj tib yam li cov proteins: carbon, hydrogen, oxygen, nitrogen; ntxiv rau phosphorous (C, H, O, N, thiab P) Nucleic acids yog cov macromolecules loj heev uas muaj cov rov ua dua ntawm tib lub tsev thaiv, nucleotides, zoo ib yam li pearl saw caj dab ua los ntawm ntau pearls.
Puas muaj Sulfur hauv DNA?
DNA phosphorothioate (PT) kev hloov pauv yog kev hloov pauv leej faj ntawm lub caj qaum ntawm DNA qhia los ntawm cov proteins DndA-E. Nws tau raug kuaj pom nyob rau hauv ntau cov kab mob cais tawm thiab cov ntaub ntawv metagenomic, suav nrog tib neeg cov kab mob, thiab suav tias tau muab faib ua ntau yam.
Puas DNA lossis RNA muaj leej faj?
kev hloov pauv sulfur muaj tau pom ntawm DNA thiab RNA. Sulfur hloov pauv ntawm cov pa atoms ntawm nucleobase los yog cov pob txha caj qaum nyob rau hauv lub nucleic acid moj khaum coj mus rau ntau yam sulfur-modified nucleosides thiab nucleotides.
Sulfur nyob qhov twg hauv DNA?
No dinucleotide, uas tshwm sim nyob rau hauv kab mob genomic DNA, muaj cov sulfur atom nyob rau hauv qhov chaw ntawm ib qho ntawm cov nonbridging oxygen atoms ntawm nws pawg phosphate. Kev hloov kho DNA uas yog tsim los rau cov cuab yeej ntawm biochemists thiab cov kws tshawb fawb txog kev kho noob tau tshwm sim hauv cov kab mob (Nature Chem.
