The alpha helix (α-helix) is a common motif in the secondary structure of proteins and is a right hand-helix conformation in which every backbone N−H group hydrogen bonds to the backbone C=O group of the amino acid located four residues earlier along the protein sequence. The alpha helix is also called a classic Pauling–Corey–Branson α-helix. The name 3.613-helix is also used for this type of helix, denoting the average number of residues per helical turn, with 13 atoms being involved in the ring formed by the hydrogen bond. Among types of local structure in proteins, the α-helix is the most extreme and the most predictable from sequence, as well as the most prevalent. (Wikipedia).
To start using Tab for a Cause, go to: http://tabforacause.org/minuteearth2 You might already know that proteins are a fundamental part of your diet, but they're much more than that. LEARN MORE ************** To learn more about this topic, start your googling with these keywords: - Amino
From playlist Biology
AlphaFold Protein Structure Database
With EMBL-EBI, we're proud to launch the AlphaFold Protein Structure Database, which offers the most complete and accurate picture of the human proteome, doubling humanity’s accumulated knowledge of high-accuracy human protein structures - for free. Try it today: dpmd.ai/alphafolddb
From playlist The story of AlphaFold
We've been hearing about DNA since the third grade, and we all know that it's a double helix with little ladder rungs. But now we are ready to understand this molecule on a more fundamental level, which will enable to us to understand how this molecule can serve as the genetic code. Let's
From playlist Biochemistry
A Level Biology Revision "Protein Structure 1"
In this video we start looking at the first two levels of protein structure. These are called the primary structure and the secondary structure. We start by looking at how the primary structure and how this is critical for the function of a protein. We then explore what is meant by seconda
From playlist A Level Biology Biological Molecules
IB Chemistry HL Option B Biochemistry B.8 Nucleic acids
IB Chemistry HL Option B Biochemistry B.8 Nucleic acids More resources: http://www.mrwengibchemistry.com/ • Nucleotides are the condensation products of a pentose sugar, phosphoric acid and a nitrogenous base—adenine (A), guanine (G), cytosine (C), thymine (T) or uracil (U). • Polynucleo
From playlist Option B Biochemistry SL HL
What is DNA Structure? How to Make a Double Helix with a 3D Pen | Biology | Biochemistry
DNA is a double-helix - it looks like a twisted ladder. Its backbone is made of sugars (deoxyribose) and phosphate groups, and the rungs of the ladder are made from 4 nitrogenous bases: Guanine, Adenine, Thymine, and Cytosine. The order of the “rungs,” or bases, is what determines what t
From playlist Biology
ALPHA: A new era of precision for antimatter research
In June 2018, the ALPHA collaboration has reported the most precise direct measurement of antimatter ever made, revealing the spectral structure of the antihydrogen atom in unprecedented colour. In this video, Jeffrey Hangst, ALPHA spokesperson, talks about this latest result, which open
From playlist Antimatter
Help us caption & translate this video! http://amara.org/v/GAv5/
From playlist LambdaConf 2015
Arthur Mallay Lesk, The architecture of proteins - 8 maggio 2019
https://www.sns.it/it/evento/the-architecture-of-proteins Colloquio della Classe di Scienze Arthur Mallay Lesk (Penn State University) The architecture of proteins Abstract Proteins present us with a great variety of three-dimensional structures, selected to adopt unique folding patter
From playlist Colloqui della Classe di Scienze
Lec 3 | MIT 7.014 Introductory Biology, Spring 2005
Biochemistry II (Prof. Graham Walker) View the complete course: http://ocw.mit.edu/7-014S05 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 7.014 Introductory Biology, Spring 2005
Proteins, levels of Structure, Non-covalent Forces, excerpt 2 | MIT 7.01SC Fundamentals of Biology
Instructor: Graham Walker View the complete course: http://ocw.mit.edu/7-01SCF11 Professor Walker explains the categories of amino acids, the levels of protein structure, the bonds and forces in each level, and how they can influence protein structure. License: Creative Commons BY-NC-SA
From playlist MIT 7.01SC Fundamentals of Biology
Lec 4 | MIT 7.014 Introductory Biology, Spring 2005
Biochemistry III (Prof. Graham Walker) View the complete course: http://ocw.mit.edu/7-014S05 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 7.014 Introductory Biology, Spring 2005
Introduction to Chemical Biology 128. Lecture 10. Proteins and Amino Acid Conformations.
UCI Chem 128 Introduction to Chemical Biology (Winter 2013) Lec 10. Introduction to Chemical Biology -- Proteins and Amino Acid Conformations -- Part 1 View the complete course: http://ocw.uci.edu/courses/chem_128_introduction_to_chemical_biology.html Instructor: Gregory Weiss, Ph.D. Lice
From playlist Chem 128: Intro to Chem Biology
Lec 4 | MIT 7.012 Introduction to Biology, Fall 2004
Biochemistry 3 (Prof. Robert A. Weinberg) View the complete course: http://ocw.mit.edu/7-012F04 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 7.012 Introduction to Biology, Fall 2004
Complete Sampling Methods for Predicting Structures of... (GPCRS) by William A Goddard III
PROGRAM STATISTICAL BIOLOGICAL PHYSICS: FROM SINGLE MOLECULE TO CELL ORGANIZERS: Debashish Chowdhury (IIT-Kanpur, India), Ambarish Kunwar (IIT-Bombay, India) and Prabal K Maiti (IISc, India) DATE: 11 October 2022 to 22 October 2022 VENUE: Ramanujan Lecture Hall 'Fluctuation-and-noise' a
From playlist STATISTICAL BIOLOGICAL PHYSICS: FROM SINGLE MOLECULE TO CELL (2022)
The ALPHA experiment observes light spectrum of antimatter for the first time
ALPHA is an antimatter experiment set up in late 2005. ALPHA makes, captures and studies atoms of antihydrogen and compares these with hydrogen atoms. In a paper published today in the journal Nature, the ALPHA collaboration reports the first ever measurement on the optical spectrum of an
From playlist Antimatter
3. Structures of Amino Acids, Peptides, and Proteins
MIT 7.016 Introductory Biology, Fall 2018 Instructor: Barbara Imperiali View the complete course: https://ocw.mit.edu/7-016F18 YouTube Playlist: https://www.youtube.com/playlist?list=PLUl4u3cNGP63LmSVIVzy584-ZbjbJ-Y63 After wrapping up the lecture on lipids, Professor Imperiali moves on t
From playlist MIT 7.016 Introductory Biology, Fall 2018
This biochemistry video tutorial provides a basic introduction into amino acids. It discusses what to look for when describing the side chain groups as polar, nonpolar, acidic, basic, or aromatic. My Website: https://www.video-tutor.net Patreon Donations: https://www.patreon.com/MathSc
From playlist Biochemistry
Protein Structure - Primary, Secondary, Tertiary, & Quarternary - Biology
This biology video tutorial provides a basic introduction into the four levels of protein structure - primary, secondary, tertiary and quarternary structure. The primary structure of a protein is based on the sequence of amino acids. The secondary structure is based on localized shapes s
From playlist Biochemistry