#05 Biochemistry Protein Tertiary/Quaternary Structure Lecture for Kevin Ahern’s BB 450/550

#05 Biochemistry Protein Tertiary/Quaternary Structure Lecture for Kevin Ahern’s BB 450/550

Kevin Kevin Ahern: Maybe not. Hold on. Ah, now let’s get started. How’s that? Too many cords. I vote for cordless. How’s everybody doing today? “Good, professor, that’s very good.” Male Student: Well caffeinated. Kevin Ahern: Well caffeinated! Then learning shall happen, right? Okay, so, today I’m going to finish talking about protein structure. I’ve […]

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Human Physiology : What Is Protein Synthesis?

Human Physiology : What Is Protein Synthesis?

You may have heard that if you want to build muscle mass, it’s helpful to eat more protein. But how does the protein in the food that you eat actually turn into more muscles? I’m Janice Creneti and this is what is protein synthesis? Protein synthesis is one of the many complicated processes in your […]

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Protein Folding and Particle Accelerators: A New Solution

Protein Folding and Particle Accelerators: A New Solution

Water is fundamental to all life. Digestion, brain chemistry, drug metabolism… Almost all biology, even if you can’t see it, has to take place in water. It’s the most important liquid of life. So most of the time when people think about water they think about it as this magical substance where biology happens. It […]

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Proteins and Nucleic Acids

Proteins and Nucleic Acids

Hey folks, this is going to be our second screencast on the big four molecules, and this time we’re going to talk about proteins and nucleic acids. So when we talked about carbohydrates and lipids, we mostly used carbon hydrogen oxygen and nitrogen, but today we’re going to add phosphorus and sulfur into the mix […]

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Eukaryotic Translation (Protein Synthesis), Animation.

Eukaryotic Translation (Protein Synthesis), Animation.

Steps of the translation process: Initiation : The small ribosomal subunit binds to the initiator tRNA carrying the initiator amino acid methionine. This complex then attaches to the cap structure at the 5’ end of an mRNA and scans for the start codon AUG. The process is mediated by several initiation factors. At the start […]

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16. Protein Interaction Networks

16. Protein Interaction Networks

The following content is provided under a Creative Commons license. Your support will help MIT OpenCourseWare continue to offer high quality educational resources for free. To make a donation or view additional materials from hundreds of MIT courses, visit MIT OpenCourseWare at ocw.mit.edu. PROFESSOR: Going to finish up a little bit from last time on […]

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Animation of Protein Synthesis (Translation) in Prokaryotes.

Animation of Protein Synthesis (Translation) in Prokaryotes.

Initiation of translation in prokaryotes: The small ribosomal subunit is separated from the large subunit with the help of two initiation factors: IF1 and IF3. This complex then binds a to purine-rich region — the Shine-Dalgarno sequence — upstream of the AUG start codon on the mRNA. The Shine-Dalgarno sequence is base-paired to a complementary […]

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Proteins and Nucleic Acids : Key Biomolecules II

Proteins and Nucleic Acids : Key Biomolecules II

Hi, everyone! Welcome back to BOGObiology! This tutorial is going to cover proteins and nucleic acids. We will discuss their structure their function and where they can be found. Different groups of atoms combine to form biomolecules. When we talked about carbohydrates and lipids, we used carbon hydrogen oxygen and sometimes nitrogen. Now that we’re […]

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