Tag: ARGININE
-
Staphylokinase (SAK) aka staphylococcal fibrinolysin or Müller’s factor
Staphylokinase (SAK; also known as staphylococcal fibrinolysin or Müller’s factor) is a protein produced by Staphylococcus aureus. It contains 136 amino acid residues and has a molecular mass of 15kDa. Synthesis of staphylokinase occurs in late exponential phase. It is similar to streptokinase. Fibrinolysin is an enzyme derived from plasma of bovine origin (plasmin) or extracted from cultures of certain bacteria. (more below) Staphylokinase is positively…
-
Protein phosphorylation was first reported in 1906
Protein phosphorylation is a reversible post-translational modification of proteins in which an amino acid residue is phosphorylated by a protein kinase by the addition of a covalently bound phosphate group. Phosphorylation alters the structural conformation of a protein, causing it to become activated, deactivated, or otherwise modifying its function. Approximately 13,000 human proteins have sites that are phosphorylated. The reverse reaction of phosphorylation is called dephosphorylation, and is catalyzed by…
-
Arginine
Arginine is the amino acid with the formula (H2N)(HN)CN(H)(CH2)3CH(NH2)CO2H. The molecule features a guanidino group appended to a standard amino acid framework. At physiological pH, the carboxylic acid is deprotonated (−CO2−) and both the amino and guanidino groups are protonated, resulting in a cation. Only the l-arginine (symbol Arg or R) enantiomer is found naturally. Arg residues are common components of proteins. It is encoded by the codons CGU, CGC,…
-
What Is Metalloproteinase?
Metalloproteinase – the name alone screams “I’m here to ruin everything” – is a feral pack of enzymes armed with metal claws (zinc, mostly, because it’s the shiniest weapon in the elemental arsenal) that shred proteins like they’re auditioning for a slasher flick. These molecular psychopaths don’t just cut – they obliterate, turning the extracellular…
-
Histones
In biology, histones are highly basic proteins abundant in lysine and arginine residues that are found in eukaryotic cell nuclei. They act as spools around which DNA winds to create structural units called nucleosomes.[1][2] Nucleosomes in turn are wrapped into 30-nanometer fibers that form tightly packed chromatin. Histones prevent DNA from becoming tangled and protect it from DNA damage. In addition, histones play important roles in gene regulation and DNA replication. Without histones, unwound DNA in chromosomes would be…
Recent Posts
- 🧬 Disease Table with Low Sodium Connection
- 🧂 Sodium Reduction and Sodium Replacement: A History of Reformulation and Exploding Diseases, Including Many Diseases Unheard of Before Deadly Sodium Policies
- 🧂 The DEADLY 1500 mg Sodium Recommendation predates the WHO’s formal global sodium reduction push by nearly a decade (and it’s even worse than that)
- 🧬 What Is Beta-Glucuronidase?
- When Sugar Was Salt: Crystalline Confusion and the Covenant of Sweetness
Tags
ADAM ASPARTAME Birds Blood Bones Brain Bugs Cancer Columba Cows crystallography Death Death cults Eggs Etymology Gastrin Gold Growth hormone History Hormones Insulin Liver Mere Perplexity Metal Monkey Business Mythology Paracetamol Plants Poison Pregnancy Protein Religion Reproduction Rocks Salt Slavery Snakes Sodium the birds and the bees Thiocyanate Tobacco Tylenol Underworld Venom zinc