Rau feem ntau cov amino acids, L daim ntawv sib raug mus rau ib qho S meej stereochemistry, tab sis yog R hloov rau qee yam sab-chains.
Puas yog S thiab L teeb tsa tib yam?
Qhov sib txawv tseem ceeb ntawm L, D configuration thiab S, R configuration yog thawj tus yog txheeb ze configurationhos qhov thib ob yog qhov tseeb configuration.
YPuas yog L amino acids?
Txhua qhov tshwm sim ntawm cov amino acids hu ua L vim tias lawv muaj cov tshuaj stereochemistry uas muaj keeb kwm cuam tshuam nrog ib qho stereoisomer ntawm glyceraldehyde, qhia hauv qab no. L-Glyceraldehyde thiab cov amino acids ntuj tag nrho muaj qhov kev teeb tsa tsis tiavOb qhov kev zam yog glycine thiab cysteine.
Puas yog d thiab kuv ib yam li R thiab S?
(D-L system sau tag nrho cov molecule, thaum R / S system sau cov kev teeb tsa ntawm txhua qhov chaw chirality.) luv luv, D-L system tsis muaj kev sib txuas ncaj qha rau (+)/(-) notation. Nws tsuas yog hais txog stereochemistry ntawm qhov sib xyaw nrog glyceraldehyde, tab sis tsis hais dab tsi txog nws qhov kev ua haujlwm kho qhov muag.
Koj paub li cas yog S lossis R teeb tsa?
Kos ib xub pib los ntawm qhov tseem ceeb ntawm ib qho thiab mus rau qhov tseem ceeb thib ob thiab tom qab ntawd mus rau qhov tseem ceeb 3: Yog tias tus xub mus rau lub moos, zoo li hauv qhov no, qhov kev teeb tsa tiag tiag yog R. As opposed to this, yog tus xub mus counterclockwise. ces qhov tseeb configuration yog S.
