Lecture - 2 Amino Acids II

[2fatloss]

I dont need to go the the univ this women is my biochemistry angel

[carebianmd]

life saver ...love it love it love it love it love it love it ..

[FaerieDust]

This lady is amazingly pedagogical. An angel!

[mrinalbarua]

CAN I HAVE YOUR EMAIL ID

[mrinalbarua]

medical schools miss you!!

[anainesleib]

You saved me!!



[faridaik]

I love this teacher. What a big heart!

[Sneery69]

Thanks for making this almost easy!



[sandrathekiller]

thanks for the detailed illustration

[Surfsailwaves]

Many thanks for making this so simple! 

[bozez1]

2 people are going to fail the heck out of Biochemistry.

[b3d1983]

good explain

[COGIE2000]

INDIANS ARE VERY INTELLIGENT ..........

THANK YOU VERY MUCH, AND NOW I UNDERSTAND WHAT IS BIOCHEM.....

I AM A FILIPINO.............

[MrUrocker]

Thank you very much Maa`m.....these lectures are very helpful for me...

Thanks again...

[shafahta]

u zavez mah liefz , kthxbai

[mrenee21]

You absolutely saved me, Prof.S.Dasgupta. I thank you for explaining this in a LOGICAL way! Love from New York!!

[chy47]

chyoung@pavo.seed.net.tw

[cjbl84]

Fantastic lecture series - many thanks.

[deefromott]

it was clearer when she wasnt shouting

[vimalgene]

Thank you madam it was really worth for me thanks a lot

[TheViolinguy92]

Thank-you so much! You allow biochemistry to be very understandable! I'm a senior in high school and I can completely understand you and the course! You are a very generous person for allowing us to see your very thorough lectures on Youtube!

[hrfepo1]

This is an excellent job! I enjoyed the two first lessons.

[SlyMcdoogal]

will you marry me?

[ruluhur]

thank you so much..

[MrRDX410]

Thaking you-tube and IIT Kharagpur

[timemuch]

i love how she teaches .. holy if i had a prof like her in my school i dont think anyone would have wanted to compete me in biochemistry .. lol

[jdrokkala]

I dont understand how an amino group in Hydroxyproline bare 4 bonds

[goapldan]

Prof S.dasgupta make a good impression on me ilike her teaching way.she is treasure of knowledge

[aoifewest]

Best lecture ever! Better than my french biocemistry teacher , better than my arrogant german "Profesor" and better than my confused Irish teacher.

I realy had all those teachers and only this online lecture makes sens.

We can realy feel she dominates her matter.And not other wie LOL.

[goapldan]

Ya i also like this Lecture.good job

[anleboy]

great job madam...

[nosorog91]

i fell asleep listening to this lecture

[cutey0011]

@nosorog91

then dont listen

[JGamdi]

@nosorog91 LOL .. IT IS REALLY MAKES ME SLEEP .. IT HAS SOME HYPNOTIC EFFECTS :P

[amritkaur8]

Hi Mam,I have a question/doubt..about cysteine amino acid.If cysteine is non polar,how can it form the disulfide linkage which is a covalent bond.Some classifications place Cysteine as an Uncharged polar group.Which do you(or anyone who "knows" biochem) find more appropriate?

[ballsoffury4]

@amritkaur8

All the primary structure are covalent. The Cysteine structure forms in an instance where the Cysteine groups are along side each other from different chains. I hope this helps and just in case, just because something is covalently bound does not mean it will always be polar. For example nitrogen or oxygen gas, although there are two same atom sharing electron they are nonpolar because there is no pull toward one specific atom. They are shared equally

[aljaesson]

great teaching style

[pilotmeyy]

Hi Professor, your lectures are great!

When you repeat the same concepts again and again, it helps me memorize them immediately. Thanks again for helping us.

[djdesh7]

i feeel sleepy listening to this, but really good lecture. i like your explanation. its just a lil too slow for me tho. but alot of information.

thanks alot for posting this up!

[angelmdj23]

are we in the middle of the video lecture era?

[eddynorm]

Good job!

[lilleboff]

The explaination for histidine's action as either an acid or base catalyst is not 100% correct. The physiological pH does not vary more than 0.1 in healthy individuals. A pH of the bodily fluids under ca. 7.35 is referred to as acidosis. A pH under 6.8 is not consistent with life. The pK of imidiazole of histidine is far from this value, not close as told here. The only way histidine functions as a catalyst is because of the presence of adjacent charged groups in the protein, raising its pK.

[TruthExposed123]

Yooo dude rather then complaining y dont u pur forward a video of ur own n then post it around !! This lady did a pretty neat job explaining all these tough shitty stuffs !! So Quit complaining n get to work or atleast be bit more respectful !!!

[mirabeaubapi]

xcellent i wonder what you are doing in india come to america

[sedicirich]

excellent, huge thanks, really supplemented my lectures and lab perfect

[quefnot]

Good video, but I think the coloring of atoms in models has changed

[cnordheim]

clear, concise, and informative. easy to understand even for a neophyte like me.

[sheerpink88]

She is amazing :)

[WomenPR]

She is wonderful and these videos are great. I have learned so much.

Thank you for posting this wonderful material.

[srinivassiddarth]

a bit of tattooing with matching skin color will cover all the white patches on this wonderful teacher's face. i hope she considers that. just a suggestion.from medical point of view as well as cosmetic.thanks.

[johnbharris]

From a medial point you have no idea unless you've examined her in person.

From a cosmetic point of view is from where you argue.

She looks perfectly fine and needs nothing. Who says we all have to look the same?

[quefnot]

fuck off she is a godess

[myosotiss02]

i think you have forgoten the aromatic groups with Phe, Tyr and Try!!

[princeofautumn]

Those were in the last video...

[jamesfitness]

lol true. I think you forgot video 1 of this series:)

[WomenPR]

Thank you for this and all the other videos. They are very helpful. Please post more.

[dreamonlittleman]

okay so in my book the 20 amino acids are put in 4 groups which is different than what is shown in the video. this is confusing me!

neutral nonpolar amino acids

-glycine, alanine, valine, leucine, isoeucine, phenylalane, tryptophan, methionine, cycteine, proline

neutral polar amino acids

-serine, threonine, tyrosine, asparagine, glutamine

acidic amino acid

-asparate, glutamante

basic amino acids

-lysine, arginine, histidine

[mara0383]

My book is slightly different too but you have to understand that they are all different author and A.A have different properties that make them easy to group in different ways.

most important you have to understand the characteristics of all of them and understand the structure, if you do so you wont be confuse.

[mara0383]

I will give u an ex. she group the gly and pro in a unique group, but the gly and the pro are also non polar because of the structure they have and also make them hidrofobic.

in the video HIS is in the polar group but in ur book is in the basic, both are correct because the HIS is a weak base and can participate in polar reactions.

[mara0383]

you will also find books that classify some of them as charged this are what she call acids and bases because of the charge of the carboxilic group and the amina group.

i hope this may help u and other with the same Q.

[privatekept]

In this lecture the pKa for the R-group of Glutamate is shown on the titration curve as 4.25. In the previous lecture you labeled the value as 4.1. On the internet I found tables listing 4.07, 4.25, and 4.3. Why the discrepancy?

[Assmara]

tnx very much this is truly helpful to understand the basics of biology at a molecular level, you have made interesting and easier, now i start understanding pre-much everything.. tnx again.

[BodeHaryanto]

I cannot search lecture -3 ? Maybe Protein structure 1? Thanks.

[alaaraki70]

realy is anice and an excellent explanations,God bless you.

[shafqatnazir]

This video can not be played. It gets stopped after few minutes. Any guidance please.

Dr. Shafqat Nazir Senior Lecturer Biochemistry Deptt. Quaid-e-Azam Medical College Bahawal Pur Pakistan +923146860798 (cell)

[CooeeEcho]

I know how they fold into the same structure every time .... it's the 'cluster' .... naturally ... see my channel to bring yourselves into the twenty first century

Regards

Coo

[harreaza]

Thanks for using Youtube for such a great cause: Sharing knowledge.

[AnatomaniaK]

In anfinsen's experiments we reduce using BME and unfold using urea! cool!