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cDNA Synthesis Protocol by Reverse Transcription 

Henrik's Lab
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Hey Friends,
cDNA (complementary DNA) is synthesized from an RNA template. This is done by Reverse Transcription. In this example, the oligo d(T)-primers are used to prime the cDNA synthesis. An alternative would be to use random hexamers as primers. cDNA is synthesized before qPCR to check gene expression levels.
qPCR:
• qPCR (real-time PCR) p...
References:
Recommended: www.nature.com/articles/nmeth...
More:
geneticeducation.co.in/revers...
www.ncbi.nlm.nih.gov/pmc/arti...
Cheers
Henrik

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14 фев 2021

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Комментарии : 93   
@Whereverbv
@Whereverbv 2 года назад
I was so confused with these terms and you explained so clearly and so well. Thank you so much
@sXnjh
@sXnjh 2 года назад
Thank you soooo much for this. This thing was more like rocket science to me before watching this video. Cleared all the concepts in just one go. Thanks again. 😊 Have great day ahead
@tifenntrividic6822
@tifenntrividic6822 2 года назад
Merci pour la vidéo, elle est très claire et parfaite pour bien comprendre le mécanisme de la retrotransciption ! Thank you !
@debremarkosuniversityvine7741
@debremarkosuniversityvine7741 2 года назад
Thank u so much. before I watch this video I read some what notes but they were boring. ur video were so interesting with smooth sound and full information.
@daughteroftheking3220
@daughteroftheking3220 8 месяцев назад
Thank you we need more explanation in different Lab techniques. It is practical and we know need to know the sciences. Most of the time I find myself confused in class but thanks to you now I understand it better. Keep it up we need you. You deserve all the success.
@elvis3962
@elvis3962 3 года назад
Sehr verständlich, vielen Dank!
@itsmybio8645
@itsmybio8645 2 года назад
Thank You So much Sir.. I watched lot of Videos But No one explained about RNaseH Function and I was really confused. You Really Explained very nicely. Thanks for making this video..
@kiriakiria9685
@kiriakiria9685 2 года назад
Excellent explanation & graphics. Keep up the good work!
@TheinLin2023
@TheinLin2023 2 года назад
Thank you so much, Sir! the explanation is to be so clear and easy to understand for us.
@StepsHardcore
@StepsHardcore 3 года назад
This is great. Perfect rythm. Thank you.
@anias9
@anias9 6 месяцев назад
Very helpful! I finally understand what do we actually use reverse transcription for, thank you!
@baltizone3770
@baltizone3770 3 года назад
Sir I have lack of word to thanks you. Really you I m very excited after watched this . Stay bless forever God bless you More and more forever ❣️💝
@GlidyBun
@GlidyBun 2 года назад
Excellent video. You made this concept easy to understand, thank you.
@henrikslab
@henrikslab 2 года назад
Embrace tranquility. Thanks, Zen
@mariociencia12
@mariociencia12 3 года назад
Fantastic! Amazing! Incredible! Astounding! Mighty! Wonder! Super!
@henrikslab
@henrikslab 3 года назад
Wow
@johntindell9591
@johntindell9591 2 года назад
Thank you so much. The explanation is very intelligible.
@felipenavarromarchant7587
@felipenavarromarchant7587 Год назад
Very good explanation man. Thank you so much!
@kalpana7146
@kalpana7146 Год назад
Very well explained concepts are clear about cdna
@Joeythegoats
@Joeythegoats 2 года назад
i was confused for intron thingy and u made it easy
@Abhinav-kf4wd
@Abhinav-kf4wd 3 года назад
Thank you so much Henrik's Lab. You are doing a very noble job by providing us such useful concept clearing video. Through your videos we are able to understand the topic better than hours of classroom learning. ❤❤
@henrikslab
@henrikslab 3 года назад
Very pleased to read that! Thanks ❤
@rajmangalpandey3910
@rajmangalpandey3910 6 месяцев назад
At 2:02 , that mrna and dna combination could contain all 5 types of nucleotide, A,T,G,C,U?
@Abhinav-kf4wd
@Abhinav-kf4wd 6 месяцев назад
Yes ​@@rajmangalpandey3910 you are right. The mRNA-cDNA hybrid so produced contains all 5 bases. Please also note that only the template mRNA strand contains Uracil. The two enzymes used here are: (1) RNA dependent DNA polymerase (reverse transcriptase) and (2) DNA dependent DNA polymerase (DNA polymerase 1) These enzymes used here cannot add uracil during polymerization, therefore uracil will be absent in the newly synthesized DNA strands.
@rajmangalpandey3910
@rajmangalpandey3910 6 месяцев назад
@@Abhinav-kf4wd why Rnase didn't ate whole RNA? But made small fragments
@Abhinav-kf4wd
@Abhinav-kf4wd 6 месяцев назад
​@@rajmangalpandey3910 I do not know the reason. But If RNase H hydrolyzed the entire mRNA strand then there would be no primer left for DNA polymerase 1 to act.
@samirbrahimi5782
@samirbrahimi5782 Год назад
Thanks you so much finally got what i was looking for
@Joshuén
@Joshuén 2 года назад
This helped me with my genomics class 🔥🤙🏿
@RohitPant04
@RohitPant04 2 года назад
Excellent explanation!
@user-ln4qo5fu7i
@user-ln4qo5fu7i 4 месяца назад
it is very nice and please adding brief explanation about recombinant DNA
@fmarinhoufabc
@fmarinhoufabc 2 года назад
Muito bom o vídeo, parabéns 👏🏽👏🏽👏🏽💚
@MK282k
@MK282k Год назад
My doctor should watch this srsly
@juanamontoyavenegas4756
@juanamontoyavenegas4756 3 года назад
Muy buen video! Gracias!
@jellyfish_adventures9877
@jellyfish_adventures9877 2 года назад
Great explanation!
@applewhite9403
@applewhite9403 3 года назад
Keep up the good work
@petehwang2379
@petehwang2379 Год назад
amazing explanation. cheers mate
@rotivo99
@rotivo99 3 года назад
Amazing! Thanks!
@praveenm4319
@praveenm4319 2 года назад
Thank you so much sir❤
@user-vs1ic8iy4q
@user-vs1ic8iy4q 3 года назад
thank you very very much!
@sarahmahmoud1051
@sarahmahmoud1051 3 года назад
Thank you very much..
@Sorajjang
@Sorajjang 8 месяцев назад
Thank you ❤ God bless you ❤️
@elishamuhoni382
@elishamuhoni382 Год назад
Nice explanation ❤️
@dr9151
@dr9151 2 года назад
amazing , keep going
@johnlopez2028
@johnlopez2028 Год назад
How do you make cohesive ends on the cDNA so you can be able to ligate it with the chosen vector?(using restriction enzymes for the cDNA given would cut out some of the coding sequence right? so how do you add cohesive ends? thanks
@ayshaafsal5569
@ayshaafsal5569 2 года назад
Thank you 😊💕💕
@uneeedzuneeedz1683
@uneeedzuneeedz1683 Год назад
Hi, i hope someone will help you the way u helped me today, I wish u the best from France
@jennymacparry1855
@jennymacparry1855 2 года назад
Best video ever❤️❤️
@ahmetziyaaktas9179
@ahmetziyaaktas9179 11 месяцев назад
Thank you so much!
@suhashg8664
@suhashg8664 7 месяцев назад
Hey, one question after the synthesis of ds-cDNA. How it will multiply in numbers.................Without having the primer for coding another strand....?
@user-mm8cq9xg3m
@user-mm8cq9xg3m 3 года назад
Hello, i am facing problem in cdna synthesis. would you please help me to know your protocol?
@tomcruise9317
@tomcruise9317 7 месяцев назад
Mam 5'AGUCAGGUC3' this is mrna what is the C dna to this sequence
@apekshadandi7767
@apekshadandi7767 4 месяца назад
🙏thank you.
@a_9773
@a_9773 Год назад
Danke, brudi! Arbeiten grade an einer präsi über Gen Chips und das ist verdammt nützlich!!! Love you
@omaimah7366
@omaimah7366 2 года назад
Thank you
@dygestorPico
@dygestorPico 5 месяцев назад
At 3:20 the last exon shouldn't have blue "legs", because blue was polyA before. Poly A is not in DNA.
@gaby10omhc
@gaby10omhc 3 года назад
Thanks!!!!
@muneeb1050
@muneeb1050 3 года назад
Thanks :)
@warden2242
@warden2242 Год назад
Today, my Professor explained this topic to us, somehow she explained, that after the synthesis of the first cDNA-Strand the Double-Strand would be denaturated into Two seperate ones, later there are inhibitors to Stopp the accurance of Rnase. Later Taq-Polymerase is Synthesizing the other Strand from the cDNA-Strand that was reverse trnascripted before, not like in your video by Nicking from the Rnase and Polymerase 1 and later with Ligase. I asked her about this and she thought that you explained it as an example how it would happen in the body not like in Biotechnology. Im got super confused that she explained it different at some point. Weirdly enough she suggested us your video to learn the reverse transkription, thats why i confronted her today, in order to get clear what is correct for her exam XD Maybe the is some potential to make a different video out of it? Danke für das gute Video. Hab es dennoch gut verstehen können!
@henrikslab
@henrikslab Год назад
Hey, thanks for this message! I created this video based on the following nature paper: www.nature.com/articles/nmeth0205-151 Here, it also includes the nicks. But as alwayas: there is not only one protocol or kit. There are a few ways to generate cDNA. Hope it helps a little!
@TheJoshtheboss
@TheJoshtheboss Год назад
Is there no hairpin loop?
@user-mm8cq9xg3m
@user-mm8cq9xg3m 3 года назад
Thank you. How can we contact you if we get problem while doing qpcr wirk?
@henrikslab
@henrikslab 3 года назад
Either here or in the comment section of the qPCR video
@user-mm8cq9xg3m
@user-mm8cq9xg3m 3 года назад
Thank you for your quick response. Do you have some vedios for analyzing the data of qPCR?
@henrikslab
@henrikslab 3 года назад
@@user-mm8cq9xg3m not for data analysis yet.. but I indeed consider to do one (end of April)
@CryptoBountyHunt
@CryptoBountyHunt 2 года назад
Why cant we use mRNA directly in microarray or qPCR
@Joeythegoats
@Joeythegoats 2 года назад
it wont express completely to give information. we must use reverse transcriptase, bcos hybridization will only occur when we will use cDNA due to presence of oligo sequences on microarray.
@Hahahahahahahahasiu
@Hahahahahahahahasiu 3 года назад
in 2:57 may I ask how whole mrna are replaced by the DNA? thank you
@sanidhyapai7919
@sanidhyapai7919 3 года назад
I think, the same exonuclease activity will remove the rest of the RNA parts
@kevinjones1298
@kevinjones1298 3 года назад
Is there a way we could translate all the proteins in a human genome and create a lab created human since the entire genome has been sequenced?
@henrikslab
@henrikslab 3 года назад
Hope I got your point (create a completely synthetic human with proteins that we put in cells)? Very interesting idea. I know that something like this was done already with bacteria... but for mammals this would be way more difficult. Image, there are more things than protein.. regulatory RNAs, the DNA itself is required.. there is methylation (some genes are inactivated and some others activated). So there are more components than protein, but extremely interesting to follow up on this in a smaller way!
@user-gs7ut7gp6k
@user-gs7ut7gp6k 6 месяцев назад
Wow! what can I get you from the vending machine
@alirezaahmadi8546
@alirezaahmadi8546 Год назад
😃😃
@donovanvargasalcantar2534
@donovanvargasalcantar2534 Год назад
I have a question. What´s the meaning of the last product in this process? what is "ds"?
@henrikslab
@henrikslab Год назад
Thanks for asking! dsDNA = double stranded DNA
@donovanvargasalcantar2534
@donovanvargasalcantar2534 Год назад
@@henrikslab Thanks for supported me! Your video is all that i needed to understand this process. SUPER LIKE :)
@drfatima1696
@drfatima1696 Год назад
Can you Translation.. to Arabic
@flosto1898
@flosto1898 3 года назад
Bist du deutscher ? So hörst du dich an XD
@nniillss._2888
@nniillss._2888 2 года назад
deutsch wär echt cooler gewesen
@attilahorvath7823
@attilahorvath7823 3 года назад
Wait a second people...forgive my lack of understanding but i dont understand why start to syntettize anything about and HUMAN DNA??? Why want to know what GOD did once and why and how and how to REVERSE IT/////?????!! Please someone explain..Many thanks
@sissisophie3303
@sissisophie3303 Год назад
Only virus can do that
@critikasalihmeylani
@critikasalihmeylani 8 месяцев назад
We can do literally anything by manipulating our genes. Ofcourse, to do so, one needs to know how to speak the language of life; the language of proteins. Our genes controls our everything. You can be eternally healthy, have a perfect immune system, become a superpowered human, have 200 IQ, be able to photosynthesize, and literally become biologically equivalent of immortal. We reverse it to recreate it, and improve it.
@doctorposting
@doctorposting 6 месяцев назад
🤣🤣🤣🤣
@jonasweber4232
@jonasweber4232 Год назад
Bruder sprich doch deutsch
@JeffStokerCFM
@JeffStokerCFM 2 года назад
Man trying to play God not our place to mess with God's code that makes us human.
@laecatara1
@laecatara1 2 года назад
I've been reading about the cDna lately after the vakka vakka I can't quite decipher it yet ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-RAYZtXMEowo.html Just look for the explanation I come across this cDNA when someone takes the Weuka Woeka
@cheyennes654
@cheyennes654 2 года назад
As in the days of Noah !!! Praise the Lord !!!
@AA-gl1dr
@AA-gl1dr Год назад
Did you know that RNA isn’t just a human thing?
@Jesus_is_Good_God
@Jesus_is_Good_God 7 месяцев назад
We use this process for a very useful purpose at our citrus pathology lab. It helps us to see if our treatments against a particular pathogen are useful or not.
@anthonyhernandez3546
@anthonyhernandez3546 7 месяцев назад
Shut up you talk to the sky like a crazy person
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