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12:01 AM
@M.A.R.ಠ_ಠ Gah, this Loong guy beat me in halpful flagz! How is he doing that?
 
 
17 hours later…
5:30 PM
Dihydrofolate reductase, or DHFR, is an enzyme that reduces dihydrofolic acid to tetrahydrofolic acid, using NADPH as electron donor, which can be converted to the kinds of tetrahydrofolate cofactors used in 1-carbon transfer chemistry. In humans, the DHFR enzyme is encoded by the DHFR gene. It is found in the q11→q22 region of chromosome 5. Bacterial species possess distinct DHFR enzymes (based on their pattern of binding diaminoheterocyclic molecules), but mammalian DHFRs are highly similar. == Structure == A central eight-stranded beta-pleated sheet makes up the main feature of the polypeptide...
Is there only one additional Hydrogen on tetrahydrofolate vs. dihydrofolate?
Why so - the names seem to imply "two" versus "four"?
 
And I thought the new answer on Is “amount of substance” the same thing as “number of moles”? is going some places... but then the linked comment by Loong is still the best answer so far. ( ; _____ ; )
 
I think this was the first time I saw this question.
 
5:52 PM
Same here. I'd really appreciate - if you have the time and patience - to write something like you did for May I treat units (e.g. joules, grams, etc.) in equations as variables?
 
Word of the day: Texas carbon
 
these are two words ಠ_ಠ
 
@Martin-マーチン I have to read that again; it's so long ago :-o
 
@Loong It's really good, I can recommend it :P
 
:-D
 

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