- published: 16 Apr 2014
- views: 1468631
Proteins (/ˈproʊˌtiːnz/ or /ˈproʊti.ᵻnz/) are large biomolecules, or macromolecules, consisting of one or more long chains of amino acid residues. Proteins perform a vast array of functions within living organisms, including catalyzing metabolic reactions, DNA replication, responding to stimuli, and transporting molecules from one location to another. Proteins differ from one another primarily in their sequence of amino acids, which is dictated by the nucleotide sequence of their genes, and which usually results in protein folding into a specific three-dimensional structure that determines its activity.
A linear chain of amino acid residues is called a polypeptide. A protein contains at least one long polypeptide. Short polypeptides, containing less than 20-30 residues, are rarely considered to be proteins and are commonly called peptides, or sometimes oligopeptides. The individual amino acid residues are bonded together by peptide bonds and adjacent amino acid residues. The sequence of amino acid residues in a protein is defined by the sequence of a gene, which is encoded in the genetic code. In general, the genetic code specifies 20 standard amino acids; however, in certain organisms the genetic code can include selenocysteine and—in certain archaea—pyrrolysine. Shortly after or even during synthesis, the residues in a protein are often chemically modified by posttranslational modification, which alters the physical and chemical properties, folding, stability, activity, and ultimately, the function of the proteins. Sometimes proteins have non-peptide groups attached, which can be called prosthetic groups or cofactors. Proteins can also work together to achieve a particular function, and they often associate to form stable protein complexes.
People like to say all kinds of things about protein – like, you need to eat lots of it to build muscle and lose weight. The truth is, the science of protein and how your body uses it is much more complicated than that. Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters -- we couldn't make SciShow without them! Shout out to Patrick Merrithew, Will and Sonja Marple, Thomas J., Kevin Bealer, Chris Peters, charles george, Kathy & Tim Philip, Tim Curwick, Bader AlGhamdi, Justin Lentz, Patrick D. Ashmore, Mark Terrio-Cameron, Benny, Fatima Iqbal, Accalia Elementia, Kyle Anderson, and Philippe von Bergen. ---------- Like SciShow? Want to help support us, and also get...
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http://draxe.com/ In today’s video, I’m going to go over how much protein you should consume in a day. Protein is essential for building muscle, burning fat, supporting organs, supporting thyroid and adrenal glands, and helping your overall health. If you’re trying to heal and regenerate your body, then I would recommend consuming 50% of your body weight in grams of protein a day. If you weigh 160 pounds then I would recommend 80 grams of protein a day in your diet. If you’re trying to burn fat, then I would recommend 75% of your body weight in protein in grams a day because you’re going to replace extra carbohydrates in your diet and consume more protein to burn more fat. If you weigh 160 pounds, then you would consume 100-120 grams of protein a day. If you’re trying to build muscle, ...
Paul Andersen explains the structure and importance of proteins. He describes how proteins are created from amino acids connected by dehydration synthesis. He shows the importance of chemical properties in the R-groups of individual amino acids in the polypeptide. He explains the four levels of protein folding and gives you an opportunity to fold proteins of your own using the game Foldit: Download the video game foldit here: http://fold.it/portal/ Intro Music Atribution Title: I4dsong_loop_main.wav Artist: CosmicD Link to sound: http://www.freesound.org/people/CosmicD/sounds/72556/ Creative Commons Atribution License
CHECK PRICES or BUY ON AMAZON - ON 100% Natural Whey: http://amzn.to/1PpC1FA - Isopure: http://amzn.to/1PpBUdd - BSN Syntha-6: http://amzn.to/1PpC3gN - ISO-100: http://amzn.to/1PpCeZA - Quest Nutrition: http://amzn.to/1Pz418T Top 5 Best Protein Powders. If you're looking for the top protein powders, I'd say stick to this list, though I'm not a physician or dietician so please do consult your doctor before changing your diet, habits, and taking new supplements. I do a lot of reviews and would be happy to do individual protein powder reviews if you'd like. For now though, I think you'll get some good intel from this list. PERSU Collection Bags: http://goo.gl/VXdmvu → CONNECT ← Subscribe: http://goo.gl/aTyGpN Instagram: http://goo.gl/4RV3qk Twitter: http://goo.gl/CnSKvV Facebook...
Subscribe! http://bit.ly/ACSReactions For those striving to build muscle, protein is essential. While this is obvious to many athletes and gym-goers, the biological and chemical processes between drinking a protein shake and getting “swole” may not be so clear--but we got you covered! Find us on all these places: Subscribe! http://bit.ly/ACSReactions Facebook! http://facebook.com/ACSReactions Twitter! http://twitter.com/ACSReactions Tumblr! http://tumblr.com/ACSReactions ιittιε dΔrk oηε - Gypsy Swing Ting Producer: Elaine Seward Writer: Elaine Seward Executive Producer: Adam Dylewski Scientific consultants: Roger Vaughan Sophia Cai Kyle Nackers Sources: https://www.unm.edu/~lkravitz/Article%20folder/musclesgrowLK.html http://jissn.biomedcentral.com/articles/10.1186/1550-2783-9-4...
Proteins play countless roles throughout the biological world, from catalyzing chemical reactions to building the structures of all living things. Despite this wide range of functions all proteins are made out of the same twenty amino acids, but combined in different ways. The way these twenty amino acids are arranged dictates the folding of the protein into its unique final shape. Since protein function is based on the ability to recognize and bind to specific molecules, having the correct shape is critical for proteins to do their jobs correctly. A PDF flyer accompanies this video at PDB-101 at http://bit.ly/RK7OmG Animation by Maria Voigt, narration by Monica Sekharan
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Scitec Nutrition is a trustworthy brand with an affordable price attached to it. Considering the 22g protein content and the amazing flavors available, i'm going to be honest, this is a win!
Questo video riguarda Il mio filmato
“It’s like cereal for evil children."
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My Article: https://content.tigerfitness.com/protein-source-important-amount/ Not all proteins are created equal. They have different amino acid compositions and have different effects on your body according to this. Knowing the amino acid composition of a protein source can be a very useful tool in planning your meals so that you can ensure that you are stimulating muscle protein synthesis with each meal. In this video I talk about a recent article I wrote, where I teach you how to use each meal to trigger muscle growth. After all, we dedicate so much effort in the gym, we might as well have a diet that compliments it and helps us maximize muscle building! [Coaching] blacuttfitness@gmail.com Please subscribe, comment, like and share Instagram: MBlacutt https://www.instagram.com/mblacut...
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♥ Help Support This Channel @ http://www.patreon.com/psychetruth 130+ Exclusive Videos @ http://www.psychetruthpatrons.com Top 10 Protein Sources, Healthy Vegetarian & Meat Foods, Weight Loss Nutrition Tips | Health Coach Corrina discusses the top 10 sources of healthy protein for vegetarians and meat eaters. Certified Holistic Health Coach shares these natural diet tips to make it EASY to be healthy!! Avoid the Processed food and Junk food in favor of these natural health foods for healthy meals, so you know what to EAT and what NOT to eat!! Featuring Corrina Rachel http://www.corrinarachel.com http://www.youtube.com/corrinalovesjazz http://www.Facebook.com/CorrinaRachel Related Videos: What to EAT! Basic Nutrition, Weight Loss, Healthy Diet, Best Foods Tips | Virtual Health Co...
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Confused about how much protein you should eat while on a ketogenic diet? Recent studies have shown that even if you do eat high-protein diet while you’re in ketosis, you can maintain high levels of beta-hydroxybutyrate (BHB), the main ketone body. This research suggests (and self-experimentation confirms) that gluconeogenesis happens--both ketones and glucogenic amino acids make glucose--but that doesn't mean you're going to get fat as a result or that it'll affect your blood sugar. (In my opinion, the ability to utilize different substrates is a sign of metabolic flexibility, which is overall a good thing.) Lastly, elevated levels of beta-hydroxybutyrate (BHB) while eating a low-carb, high-fat, high-protein diet maybe linked with the increased satiety, decreased appetite and dec...
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This book will show you how to build muscle, lose fat, and get strong: http://goo.gl/lKNKWK In this podcast I talk about all things protein powder: which types I like and recommend, which I don't, how to avoid "amino spiked" powders, and more. ARTICLES RELATED TO THIS VIDEO: The Top 4 Scientifically Proven Benefits of a High-Protein Diet: http://www.muscleforlife.com/high-protein-diet/ How to Make Meal Plans That Work For Any Diet: https://legionathletics.com/diet-meal-plans/ How Many Calories You Should Eat (with a Calculator): https://legionathletics.com/how-many-calories-should-i-eat/ How Much Protein Do I Need? The Definitive (and Science-Based) Answer: https://legionathletics.com/how-much-protein-do-i-need/ How to Find the Best Protein Powder For You: https://legionathletics.co...
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Arastirmalar: 1. Irwin, M. I. & Feeley, R. M. (1967) Frequency and size of meals and serum lipids, nitrogen and mineral retention, fat digestibility, and urinary thiamine and riboflavin in young women. Am. J. Clin. Nutr. 20, 816- 824. 2. Swindells YE, Holmes SA, Robinson MF The metabolic response of young women to changes in the frequency of meals.. Br J Nutr. 1968 Dec;22(4):667-80. 3. Young CM Frequency of feeding, weight reduction, and nutrient utilization J Am Diet Assoc. ( 1971 ) 59 ( 5 ) : 473-80 4. Hansen, Øyvind The effect of meal frequency on body composition during 12-weeks of strength training. 12thAnnual Congress of the ECSS, 11–14 July 2007, Jyväskylä, Finland
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Ohhhhh
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There's something deep inside my heart
Burns with a thousands flies
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Your tears will fall
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