Primary, Secondary, Tertiary and Quaternary Structures of Proteins
Protein structure depends on its amino acid sequence and local, low-energy chemical bonds between atoms in both the polypeptide backbone and in amino acid side chains.
Protein structure plays a key role in its function; if a protein loses its shape at any structural level, it may no longer be functional.
Primary structure is the amino acid sequence.
Secondary structure is local interactions between stretches of a polypeptide chain and includes α-helix and β-pleated sheet structures.
Tertiary structure is the overall the three-dimension folding driven largely by interactions between R groups.
Quaternary structures is the orientation and arrangement of subunits in a multi-subunit protein.
Problem:
Which of the following best describes the quaternary structure of a protein?
A) How the polypeptide chains fit together
B) The layout of alpha-helices and beta-sheets
C) The four parts of a protein’s amino acid sequence
D) The sequence of nucleic acids
E) The polypeptide chain’s complete 3-D structure
#protein #proteinStructure #proteinSequence #polypeptide #NikolaysGeneticsLessons #aminoAcid #peptide #disulfideBridges #covalentBounding #ionicBounding #hydrophobicInteraction #proteinFolding #aminoAcids #proteins #Polypeptides #ImidazolRing #Histidine #polypeptideChain #oligopeptide #hydrolysesSynthesis #condensationReaction #condensationSynthesis #peptides #globularProteins #fibrousProteins #Genetics
1 view
74
22
1 month ago 00:01:18 1
ORIVISION New Launch - 4 Channels HEVC HDMI Encoder EH1304
2 months ago 00:03:26 11
ABASI CONCEPTS // MICRO-AGGRESSOR
2 months ago 00:03:26 1
AGGRSSR
2 months ago 00:28:10 1
Best Beach Spot, Family style beach resort on Koh Chang Island เกาะชาง
2 months ago 00:14:08 1
How To Use The NEW FAB Unreal Engine Plugin! (Tutorial)
2 months ago 00:40:25 1
Underground “CITY“?? Venturing Deeper into the #abandoned Black Mountain Facility!
2 months ago 00:02:07 3
Schools in the UK. Schools in Britain. A1-A2 ESL Video | English Portal
2 months ago 00:54:51 4
ASMR - 20 Triggers for Maximum Tingles!
2 months ago 01:15:23 1
Holy Hope and the Spirit of God
2 months ago 00:02:18 1
Tarantella (Giderek hızlanan hali:)
2 months ago 00:25:43 1
ASMR - Fast & Aggressive Triggers for Deep Sleep!
2 months ago 00:00:00 1
Piano Calm – Relax with Nature’s Birds and Gentle Music
2 months ago 00:19:03 1
ASMR - Plucking and Brushing Away Your Stress!
2 months ago 00:06:58 1
COLOR THEORY BASICS: Use the Color Wheel & Color Harmonies to Choose Colors that Work Well Together
2 months ago 00:00:49 1
Brisk Premium Multi-Spark vs Standard spark plug video 3D demonstration
2 months ago 00:22:56 1
ASMR for Men | Beard Shaving, Close Whispering & Tingles!
2 months ago 00:57:32 1
Don’t Settle for less than Peace and Happiness | Francis Lucille Retreat
2 months ago 00:10:47 1
Camo So Good They Didn’t Stand A Chance (Airsoft Ghillie Sniper)
2 months ago 00:38:29 1
Anticipatory ASMR To Send You To Sleep! (Delayed Triggers)
3 months ago 01:45:54 1
Whitney Webb Part 1: How Government Steals From Us, Bombshell Epstein Book & Bitcoin For Sovereignty
3 months ago 00:38:14 1
Echoed ASMR!
3 months ago 00:00:00 1
Piano Reverie – Find Inner Calm Among Nature and Blooming Flowers
3 months ago 00:30:16 1
We should all be feminists | Chimamanda Ngozi Adichie | TEDxEuston
3 months ago 00:20:14 1
HOW TO MAKE RED WINE - OUR HOMESTEAD LIFE CENTRAL PORTUGAL