glutathione is a tripeptide (a chain of three amino acids) of glutamic acid, cysteine, and glycine. what are the possible base sequence for the DNA strand from which the messenger (mRNA0 for glutathione was transcribed
glutamic acid-cyteine-glycine
2007-12-19 09:05:27 · 3 answers · asked by Mitch K 1 in Science & Mathematics ➔ Biology
Glutathione is synthesized by two enzymes, not synthesized by ribosomes on mRNA.
2007-12-19 09:12:16 · answer #1 · answered by OKIM IM 7 · 0⤊ 0⤋
The two codons for Glutamic Acid are GAA and GAG
Cysteine are UGU and UGC
four codons for Glycine are GGU, GGC, GGA, GGG
This means that there are 16 (2*2*4) possible mRNA strands. After you have concatenated these, remember to answer with the complimentary strands, as they are what the question requests. Enjoy yourself.
2007-12-19 17:18:59 · answer #2 · answered by Hermoderus 4 · 0⤊ 0⤋
Glutamic Acid- Cysteine- Glycine
GAA- UGU GGU
GAG- UGC GGC
----------------------------------------GGA
-----------------------------------------GGG
so possible sequences are
GA1UG2GG3 in position 1 you can plug in A or G, in position two U or C, and in position 3, UCAG
so there are a total of 16 different combinations possible
2007-12-19 17:56:45 · answer #3 · answered by MIKE 2 · 1⤊ 0⤋