100 Replies to “Proteins”

  1. Does every single protein exist in all four levels? Or do different proteins exist in specific forms? Do all proteins exist in quaternary form with the other levels just being ways to depict them?

  2. I don't know why I nearly cried when he started explaining the structures. Watching this video made me feel so enlightened I actually finally understand proteins! You, sir, are a pure scientist and insanely good teacher. Thank you so much.

  3. This was an absolutely incredibly well done and well explained video. Being in AP Bio, the class moves so fast and we don't have a lot of time to review key concepts like this so a lot of things go over my head. So, thank you so much. You didn't stutter once or mix up names and it was just genuinely very well done!

  4. [email protected] Alexander Kushelev Online service PROTEIN PICOTECHNOLOGY http://nanoworld.org.ru/topic/1699/
    The Picotech program can not completely replace X-ray structural analysis. However, it greatly strengthens the weakest points of the X-ray diffraction, namely, it shows reliably the secondary structure and the short-range order of the arrangement of the atoms of the tertiary structure at the time of assembly of the protein molecule by the ribosome.
    The sensitivity of X-ray structural analysis is such that it does not notice not only individual atoms, but also individual amino acid residues. Moreover, the "tails" of protein molecules that do not crystallize, the PCA generally "does not see", and these "tails" can consist of up to 50 amino acid residues.
    A special class is formed by 97% of protein molecules that do not crystallize. About them, the PCA simply does not know anything, and the Picotech program also reliably shows their secondary structure and short-range order of the arrangement of atoms in the tertiary structure.
    Your application must contain only the code of the protein of interest to you from the PDB database, or mRNA for it
    We will model your protein complex with ligands of any nature
    The lead time for the order is 1-7 days, depending on the complexity of the project.
    Digest https://picosoft.nethouse.ru/

  5. So if proteins have different hydrophobic/hydrophilic parts… does this ultimately determine whether or not it may pass through a selectively permeable membrane? Or do proteins not leave the cell at all?

  6. There is a tiny thing that I don't understand, why the shape of the protein does determine it's function even though it has the same chemical structure "same AAs" ??


  8. Excellent lecture except for the use of the word 'cool' twice. Very very unscientific vernacular. Used 'neat' once which is fine. Drop the use of the word 'cool' from your lectures please. 95 % of the people whom I have heard use the word cool have been dumb dumb's. You, of course, being in the 5% who are not. Could you imagine a heart surgeon saying 'cool' several times while performing open heart surgery on a loved one.
    Use of that word is for dope smoking kids….'coooooool man……coooool'. Thanks. Again, great lecture.

  9. Thank you for doing these videos! You’re not just a chemist. You are a good teacher! Very clear explanations. I wish all campuses just had Mr. Anderson’s videos for their lectures on chemistry.

  10. Wake Up & Smell The Amino Acids

    One way to classify “special” smells is to smell the twenty

    basic twenty amino acids, remember them, and classify any

    “special” smell under the category of one of the twenty amino acids.

    I did that over forty years ago, and I have tables of correspondence

    tables that have the twenty basic amino acids corresponding

    to analogous things:

    > 1. itza, don, decider, alanine, dice: 4&2

    > 2. imix, drun, distributor, glycine, 6&1
    > 3. ik, ceph, memory, aspartic acid, 3&3
    > 4. akbal, graph, encoder, tryptophan, 3&5
    > 5. kun, un, extruder, hydroxyproline, 1&1
    > 6. chachuen, fam, EPR, methionine, 6&5
    > 7. cimi, orth, supporter, tyrosine, 6&2
    > 8.*oc, tal, producer, threonine, 4&4
    > 9. lamat, vau, internal trn., valine, 5&5
    > 10. muluc, gon, output trn., glutamine, 4&5
    > 11.*manic, pe, ingestor, lycine, 4&6
    > 12. chuen, ged, storage, phenylalanine, 2&5
    > 13. eb, med, channel&net, asparagine, 3&6
    > 14. ben, gizga, EPA, cysteine, 1&3
    > 15. ix, ur, reproducer, proline, 2&3
    > 16. menn, mals, decoder, serine, 6&6
    > 17. kib, veh, motor, histidine, 1&2
    > 18. caban, pal, boundary, glutamic acid,1&5
    > 19. eznab, nahath, input trn., leucine, 2&2
    > 20. cuac, ger, associator, isoleucine, 4&1
    > 21. ahau, gal, converter, arginine, 4&3
    > *: These have been exchanged in modern times. EPR is
    > Entropy Prodction Rate. EPA is Entropy Production
    > Acceleration. And, trn. is transducer.

    These words have meanings in different languages. For example, let’s take the last one here,

    #21, ahau means flower, and is one of the twenty Mayan calendrical symbols.
    It was amazing; Dr. John Dee, in the Sixteenth Century, presented the Enochian alphabet,

    whose names don’t sound like the letters they represent, but, the names of these twenty-one

    letters mean the same as Dr. James Miller’s subsystems in his book

    “Living Systems”, the primary text book of living systems dynmaics.
    For example in #21 the word “gal” is the pre-Aryan word for the living systems subsystem the

    “converter”. One of the twenty amino acids produced from the DNA code, in this case “arginine”,

    is represented here. The extra amino acid in this system is hydroxyproline,

    which is produced from a code in the “junk” DNA, the most

    important product of the “junk” DNA.
    The DNA code is composed of combinations of four nucleic acids, giving 64 different

    combinations, like the Yi Jing. But, most of the basic 20 amino acids are produced from more

    than one of these combinations. These 20 amino acids compose proteins which build the body and

    assemble other compounds together to compose our complete body.
    There are seven levels of living systems: cells, organs, entities (like us, animals, and plants),

    groups (like families, gangs, teams, etc.), organizations, societies, and suprasocietal living

    systems. All of these depend upon their 21 subsystems. If any subsystem is missing, a higher living

    system must provide a substitute, or, that living system with the missing subsystem will die.
    The number combinations at the end of each line of correspondences represent the combinations

    of dice symbols, which have symbols to represent them: 1, . ; 2, U ; 3, / ; 4, O ; 5, X ; and 6, = .

    You will notice that these symbols span the usual dice symbols.
    Now we combine these six into 21 symbols. The way I’ve seen the 4&3 drawn is a circle with a

    vertical diameter, which also represents the lette D. So, each one of these also represents a

    letter. Also, of coincidence for English speaking people, the compination for B is 4&6, which

    is a cicle with a horizontal parallel in it that makes this symbol look like a bumble bee (B).
    Since we use these subsystems all the time it is organizing to notice them. For example, when

    we go grocery shopping for our family, we become the ingestor by getting the groceries, extruder

    by extruding the money to pay for the groceries, distributor by bringing the groceries to our

    family, and then we use the storage subsystem of our family (group) by storing the groceries

    where they are stored. And, if we decided what to buy, we were

    also the decider for our family.
    But, every group, organization, society, and suprasocietal living system, has a decider that has

    been called a group mind. The Greek for “group spirit” is “demon”, which comes from the Greek

    root “dem” from which we get the word “democracy”. So, we have the group mind to

    help us. Then, that’s literally “demonic”.
    The group entity is a magnetic flux circulating through all the medullas in the brains of all

    the group’s members. But, us Christians are only supposed to have Jesus Christ as our group mind,

    “having the mind of Christ”, and, being members of the “Body of Christ”.
    In the Middle Ages the ranks of these fallen “angels” were defined. The demon of a group was

    called an angel; for an organization, an archangel; for a society, a principality;

    and for a suprasocietal living system, a power.
    Now you can see what was meant, “We fight not flesh and blood; we fight principalities and powers”.

    Smelling licorice is like, but easier than, transcendental meditation. Licorice is synesthetically

    onomatopoeic to a hollow cylinder, and it stirs closed circuitry in the brain that

    goes confluent with the circuit that is the entity so that near nonexistence, nirvana,

    is experienced. Everything is actually striving for nonexistence.

    Nonexistence is the ultimate essence of pleasure. The corresponding sound, the sound of a hollow

    cylinder, pronounced “eyennn”, like the German word for one, “ein”, means “nothingness”,

    “aleph yod nun”, in Hebrew, and is onomatopoeic by meaning a well, but, it also means an eye and a ring.

    The movie “The Ring” plays upon this, the “lost word”.

  11. Can anyone please tell me what the two lines leading to the Oxygen from the secondary carbon are? Why do all the other molecules have just one line leading to them as opposed to this oxygen??

    Awesome vid, btw!!

  12. I always wonder: what happens if you run out of the one particular amino acid you need, but still have plenty of the other 19 floating around?

  13. Thank you for sharing your understanding of biological functions. I have found your presentations incredibly helpful in my college biology class.

  14. kindly help me with this question?a 120 KDa muscle protein is a two stranded coiled coil. estimate the length of the protein molecule?

  15. Doing an online biology class and your 10 minute videos teach me everything better than the 70 minute videos my professors post. Thank you!!! You are a gift to science students everywhere.

  16. have been watching all videos about protein there is in youtube and this guy's the best

  17. Protein is very essential for the growth of the body, to repair damaged tissue, maintaining body functions and also mainly for the immunity system to protect you. Proteins are antibodies that kill bacteria, viruses, and fungi that enter the body. They need to produce hormones that need to the function of the body. Almost all the enzymes used to digest foods are produced from them. They also help to transport various substances and compounds through the blood. As an example, Hemoglobin is a protein that transports oxygen from the lungs to other cells. Therefore it is very important to take a necessary amount of protein from foods daily.

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