Suggested Viewing Order
Nitrogen Metabolism
Urea Cycle
- Part 1 of 5 - Overview
- Part 2 of 5 - Details
- Part 3 of 5 - Big Pictures with Enzymes, GLDH, Glutaminase, etc.
- Part 4 of 5 - Regulation: Long Term vs Short Term
- Part 5 of 5 - Disorders and Treatments
Protein / Amino Acid Metabolism
- Part 1 of 8 - Intro
- Part 2 of 8 - Dietary Protein Breakdown
- Part 3 of 8 - Transamination Reactions and Aminotransferases
- Part 4 of 8 - Glutamate Dehydrogenase (GLDH)
- Part 5 of 8 - Glutamine Synthetase (GS)
- Part 6 of 8 - Glutaminase
- Part 7 of 8 - Glucose-Alanine Cycle
- Part 8 of 8 - Summary of Amino Acid Metabolism in Liver
One Carbon Transfers
- Part 1 of 5 - Intro
- Part 2 of 5 - Biotin
- Part 3 of 5 - Tetrahydrofolate (THF): Intro
- Part 4 of 5 - Tetrahydrofolate (THF): Conversions
- Part 5 of 5 - S-Adenosylmethionine (SAM)
Amino Acid Oxidation Pathways
- Part 1 of 10 - Intro
- Part 2 of 10 - Glucogenic vs Ketogenic Amino Acids
- Part 3 of 10 - Amino Acids Degraded to Pyruvate
- Part 4 of 10 - Amino Acids Degraded to Acetyl-CoA
- Part 5 of 10 - Phenylketonuria (PKU)
- Part 6 of 10 - Amino Acids Degraded to α-Ketoglutarate (α-KG)
- Part 7 of 10 - Amino Acids Degraded to Succinyl-CoA
- Part 8 of 10 - Branched Chain Amino Acids (BCAAs)
- Part 9 of 10 - Amino Acids Degraded to Oxaloacetate (OAA)
- Part 10 of 10 - Summary
Nitrogenous Bases, Nucleotides, and Nucleosides
- Nucleotides vs Nucleosides
- The Nitrogenous Bases - Purines and Pyrimidines
- Naming Nucleotides and Nucleosides
- Purine and Pyrimidine Nucleotide Biosynthesis
- Deoxyribonucleotides and Deoxythymidylate Synthesis
- Cancer Chemotherapy - How it Works (Biochemically)
Cell Signaling and Hormone Cascades
- Cell Signaling (Part 1 of 2) - Introduction
- Cell Signaling (Part 2 of 2) - Signal Transduction - General Scheme
- G Protein Coupled Receptors (Part 1 of 2) - 2nd Messengers - General Scheme
- G Protein Coupled Receptors (Part 2 of 2) - Cyclic AMP - General Scheme
- Epinephrine Signaling Cascade - GPCR (G-Protein Coupled Receptor)
- Glucagon Signaling Cascade - GPCR (G-Protein Coupled Receptor)
- PIP2, IP3, DAG Signaling Cascade - GPCR - General Scheme
- Insulin Signaling Cascade - Receptor Tyrosine Kinase
- Diabetes Mellitus - Type I vs Type II
DNA and RNA
- DNA/RNA Structure - How to Draw Nucleic Acids
- DNA Structure - The DNA Double Helix
- DNA Structure - Base Pair Hydrogen Bonding and Melting Temperature
- DNA Packaging
- Types of RNA
DNA Replication
- The Central Dogma
- The Meselson-Stahl Experiment
- DNA Replication (Part 1 of 3) - Introduction
- DNA Replication (Part 2 of 3) - DNA Polymerases - Prokaryotes and Eukaryotes Comparison
- DNA Replication (Part 3 of 3) - The Enzymes and The Replication Fork
- Telomeres and Telomerase in Eukaryotes
- DNA Damage - Thymine Dimers and Xeroderma Pigmentosum
Transcription
- Part 1 of 6 - Introduction
- Part 2 of 6 - Prokaryotes vs Eukaryotes
- Part 3 of 6 - Initiation in Prokaryotes
- Part 4 of 6 - Initiation in Eukaryotes
- Part 5 of 6 - Termination in Prokaryotes
- Part 6 of 6 - Post-Transcriptional Modifications
Prokaryotic Transcription
- Part 1 of 5 - Transcriptional Regulation
- Part 2 of 5 - The lac Operon
- Part 3 of 5 - CAP Site and Catabolite Repression of lac Operon
- Part 4 of 5 - The trp Operon
- Part 5 of 5 - Control Mechanisms Summary
Eukaryotic Transcription
- Eukaryotic Regulation of Gene Expression
- Chromatin Remodeling in Eukaryotes
- Eukaryotic Transcription (Part 1 of 2) - General Scheme Involving Enhancers
- Eukaryotic Transcription (Part 2 of 2) - cAMP as Regulator of Gene Expression
- Alternative Splicing / Alternative Processing (Eukaryotes)