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Protein translation 2

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Опубликовано:

27 авг 2024

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Комментарии : 50

@nathanielscreativecollecti6392 6 лет назад

It is great but I think that there is an error. Shouldn't the new amino acid attach to the first amino acid not the last?

@13413mario1 4 года назад

That makes sense since that agrees with the way the nucleophillic attack mechanism occurs

@karokarolinalina 9 лет назад

Isn't the peptide bond formed between the amino acid that was just attached to tRNA in the P site and the amino acid that is in the A site- meaning the amino acid in A site and the 'newest' (the last one to be released from tRNA) amino acid from P site NOT the amino acid at the end of the polypeptide chain, which your graphic indicates ?

@kimian5071 8 лет назад

+Karolina Lewczuk yeah she drew it wrong

@IrakliKandelaki 7 лет назад

I am too dumb for this.

@11ravz 7 лет назад

EXACTTTTLYYYYYY!!!! I had to watch another video, to clarify the doubt. Gave a thumbs down to the video because of that gross error which was made. The Amino acid in A site would attach to the one at the P site (Peptide bond site), and not the one at the far end of the polypeptide chain. There was an error in this video. KhanAcademy, please correct it ASAP!

@rakeshrockyrocks2007 7 лет назад

Nope the video description is right I checked in harpers Biochemistry

@SultanKhan-ng6ng 9 лет назад

you people are realy incredible and genius

@oliviaarchambault2565 6 лет назад

So thankful for these videos

@lorenzoseegrow7584 6 лет назад

Thank You Khanacademy......for an unseen world of wonder.

@jalalalhbani 9 лет назад

amazing vedio that make any thing easy right now

@jngf100 7 лет назад

Fantastically informative. Thank you very kindly for answering a question I had which was how does the correct tRNA get added to the next codon along the mRNA chain by explaining that it's trial and error with many tRNA molecules randomly arriving at the next codon, and the first one from this random collection to have the correct anticodon gets added.

@MohammadAhmad-fi3pt 7 месяцев назад

E exit P peptidyl tRNA A aminoacyl tRNA

@sciencenerd7639 2 года назад

Nice, but you should have counted the start codon, which makes for eleven amino acids, including the first one which is methionine

@gordonledwidge2557 7 лет назад

excellent thank you, starting to get this complex process karen

@11ravz 7 лет назад

Gave a thumbs down to the video because of that gross error which was made. The Amino acid in A site would attach to the one at the P site (Peptide bond site), and not the one at the far end of the polypeptide chain. There was an error in this video. KhanAcademy, please correct it ASAP!

@JongensJavaanse 6 лет назад

Such an obvious mistake, I don't get how someone that understands the process can get this detail so wrong twice. Thanks for pointing it out! Someone should urgently correct it, please!

@studentdoctorjoanna1345 6 лет назад

Thanks for pointing this out, I was also taken aback by this error!

@alyaaalmery7939 6 лет назад

Amazing great video thank you alot

@yumnamukhtar366 6 месяцев назад

in tRNA, the amino acid coded by the anti-codon is not used, but rather the codon of the mRNA. So, the complementary chain does not determine the amino acid sequence. Does the same rule apply to mRNA complementary sequence of DNA or are the amino acids determined by the mRNA code?

@niralipatel6435 4 года назад

Very clear very helpful vedio

@alikawa8894 6 лет назад

wow you are amazing

@NdAhPa 8 лет назад

Shouldn't the methionine be the last amino acid hanging out since it is the first codon. The incoming amino acids should form peptide bonds with the closest amino acid, not the one at the far end right?

@visheshkunchum 8 лет назад

U got me sleepy

@christianguidone7000 8 лет назад

u said this mRNA codes for 10 amino acids but what about the start codon? doesn't that also code for an amino acid (fmet)?

@topshelftrent 8 лет назад

yes it does

@topshelftrent 8 лет назад

she said it in the video

@jatin1995 6 лет назад

graphics tools are cool!

@markoberberi8198 9 лет назад

Dankeee!

@adrianaminxie1413 9 лет назад

I think the first codon which is the AUG enters the aminoacyl and not the peptidyl t-RNA site.............

@kimian5071 8 лет назад

+Adriana Minxie the amino acid is attached to a special tRNA called initiator tRNA and is the only tRNA that can attach directly to the P site. all other tRNA (including the Met for elongation) can only attach to the A site

@tonylewistravel 8 лет назад

No, it enters the P site.

@urfijahan1379 6 лет назад

At 1:52 you said 10 aa..i wanna know as AUG also codes for 1 aa..why you didn't include this AUG coded aa?

@omarleyva931 8 лет назад

Can a formyl-Met be used for an internal Met codon?

@nourhanbaddour5076 4 года назад

It was a great video but there is a step before translation which is post transcription in which non coding regions are sliced ..or do i have wrong information ??

@musicaliy1686 Год назад

Bro it is translation

@umyozawlatt4535 Год назад

😊😅😊

@misskekwat6777 9 лет назад

thank youuuuuuuuuuuuuuuu i understand now^^

@mustavogaia2655 6 лет назад

I will try this with girls: "I am a AAA codon, so I can only bind with you, you, you".

@johnston336 8 лет назад

I really like khan academy but this video is one of the worst they have on their site. There were several errors that are fairly crucial, especially if someone is relying on this knowledge for the MCAT.

@claudiagay7293 6 лет назад

But you shouldn't rely on a video for any big test....

@lorenzoseegrow7584 6 лет назад

johnston336,point them out,what are the mistakes?

@JongensJavaanse 6 лет назад

how the peptidebonds are formed in between the aminoacids is explained wrong

@coolmatrix15 6 лет назад

how they break and connect to the chain is wrong

@drrajendrasheregarrajendra3463 5 лет назад

Protien metabolism/consumption in Cardiostatic state Upgrades fatigueless function Heart stamina recombitant details at institute of medicos open Google doc Rajendra sheregar