5. Enzymes and Catalysis

MIT 5.07SC Biological Chemistry, Fall 2013
View the complete course: ocw.mit.edu/5-0...
Instructor: JoAnne Stubbe
In this classroom lecture, Professor Stubbe focuses on enzymes as catalysts. She describes the theory and mechanics of catalysis and explains why enzymes are so important.
License: Creative Commons BY-NC-SA
More information at ocw.mit.edu/terms
More courses at ocw.mit.edu

[@Thesciencevortex362]

She’s wonderful, I love her enthusiasm. I wish my teacher was like this.

[@arrybababecool]

Yes true great Enthusiam

[@shabanyounas2004]

even though i want to leave the lecture but i feel i am disrespecting her in real. great lecturer and very detailed

[@philsmith7398]

What a great lecturer! I could have done with this enthusiasm from my biochemistry professors.

[@ornous]

Yes! She's brilliant.

[@philsmith7398]

@@ezequielxander9317 Just trust her instead

[@arrybababecool]

True

[@reinerwilhelms-tricarico344]

Great teacher - She has so much enthusiasm and passion for this stuff. That's why it doesn't seem to get boring. I liked in particular how at 45:50 she dances like an enzyme ;-)

[@pamelaanyango4567]

I conquer with the rest, my understanding has been tripled .You are truly passionate and such a super smart lecturer

[@vicente5942]

:( MIT, what abput the other videos, like Enzyme Kinetics and Enzyme Inhibition, or Biochemical Transformations II, they are not

[@stevemorrison8422]

Thank you for mentioning Harry Noller (8:25) I helped rebuild his deck, and just meeting him and knowing what he had done gave me a needed reminder of how fascinating cellular biology is. I read a book called "Life Itself" in college , and loved what it explained; but it felt too late to pursue as a career. Having videos like this one to browse through when i want to feel awe is so nice. Thank you for your enthusiasm in teaching; and thank you KZbin.

[@achrafmazouz3925]

What a great lecturer! I wish this was my class

[@samaoakuta5393]

Your enthusiasm prof. is what amazes me. Great lecture delivery

[@claudenzabandora311]

If all the Professors are like this, I will completely enroll remotely.

[@claudenzabandora311]

She's completely amazing

[@syedmohdfasihnaqvi155]

Its way difficult to get into MIT. Its not your choice😂

[@claudejunior6681]

Fasih Naqvi I’m not MIT student

[@kundhan829]

To be Straight forward, JoAnne Stubbe is Sooo Personal To My Entire SCIENTIFIC CAREER 🙂❣️

[@inaaam2641]

great Proffesor, passionate and funny! love her

[@mya5683]

this professor is awesome!

[@loladecunto1083]

Is this what professors who love their jobs and are passionate about sharing their knowledge look like?

[@rafaelterra1687]

Amazing lecture and amazing professor!

[@the_ease_of_biology]

We try to ameliorate our scientific english

[@krodinibaloch5077]

WHICH CLASS LECTURE WAS GOING ONAND WHERE . THAT WAS AWESOME.

[@emmabanks8736]

The board going up and down sounds like a sitcom laugh track

[@renanferrari6301]

What an amazing class! Thanks a lot.

[@brainstormingsharing1309]

Absolutely well done and definitely keep it up!!! 👍👍👍👍👍

[@donboscongwina1479]

An excellent communicator....

[@pierpaolocasamassima8652]

Invaluable class

[@lastchance8142]

How did biochemical pathways proceed before all these catalysts were present in cells?

[@peybak]

That's a good question. There is a hypothesis called "The RNA-world hypothesis." RNA can convey information AND be a catalyst. It's one of the things that Prof. Stubbe mentioned in an earlier lecture that, for example, a ribosome can function as a catalyst without any protein. Anyway, it's obvious that not all of the pathways came together at once.

[@Bigbentwoten]

@@peybak 😯 thnk u 🙂❤️🍬🍬🍬🍬🍬

[@arrybababecool]

Amazing Mam. what a dedication

[@luismiguelariass]

This is amazing!!! She is my hero.!

[@rikamarantika7699]

That was great lecturer. She is so awesome

[@arrybababecool]

Stay blessed Mam salute your dedication

[@priyamehra907]

Simply amazing ❤️

[@stephenkatete9410]

Great lesson. Good teacher

[@mochipickles]

She's amazing wow!

[@matthewshammami6433]

45:42 :D

[@zainulabidinzai397]

hahah very awesome

[@nz1229]

She was an expert break dancer back in her day.

[@peybak]

She did the "Dance of the Enzymes"

[@robertcece6972]

This was great but I wish she talked about peptides. I thought enzymes help turn proteins into peptides. I'm trying to learn if it's possible to make peptides at home by combining specific enzymes with amino acids. Does anyone know if this is possible?

[@ayyycortana7196]

Peptides are amino acid residues peptide bonded together that form a chain of peptides called polypeptides, which are what proteins are composed of when of sufficient length. Enzymes are proteins with catalytic activity. They are a subclass. You cannot create a specific peptide sequence at your house from amino acids. The lab procedure is far too complex.

[@saidlouzi2747]

thanks professor for this great lesson

[@rehabmostafa-o7u]

Thank to you from Egypt

[@bioclass7763]

Please suggest any good book for enzymology in english. Thanks

[@koningsbruggen]

Great lecture, thanks.

[@laurieedeburn2449]

thanks teach...

[@justarandomdude.9285]

Bless you professor!

[@ssierux]

Amazing!!!!!thank you!

[@syedmohdfasihnaqvi155]

Only if I could get into MIT

[@nicoleclarencemagtagnob1239]

really great lecturer! thanks

[@kohlrabenschwanz]

A real biochemistry professor. Chalk all over her cloth. Reminds me on my days in university.

[@Alexander-bd2hk]

the moment she wiped the blackboard gave me goose bumps :§

[@surendr3645]

Learnt a few things about enzymes which are promiscous and are thirty per cent metals!

[@larissamarinho9791]

thank you very much! 🤎

[@songthanh896]

Awesome!

[@kseke25]

@9:59 Haha, I love her! Now, I really make a connection of how fast and important enzymes are to a reaction!😀🥰

[@chintusct5258]

only one thing that concers me - I won't talk about this at all!"

[@hanle9657]

Where can I get her lecture note?

[@mitocw]

Free course materials are available at MIT OpenCourseWare at: ocw.mit.edu/5-07SCF13. Best wishes on your studies!

[@classic_shorts01]

Make it short

[@farhannur8223]

as my professor said "there's enzymes for that" 😁

[@abdibasit2344]

That chalk got my all teeath 🥴💀