Branched Fatty Acids

Sodium 3-methyl-2-oxobutanoate is a precursor of pantothenic acid in Escherichia coli.

3-Aminoisobutyric acid (β-Aminoisobutyric acid) has anti-inflammatory and antioxidant effects. 3-Aminoisobutyric acid increases the expression of brown adipocyte-specific genes in white adipose tissue and fatty acid β-oxidation in hepatocytes. 3-Aminoisobutyric acid attenuates insulin resistance and inflammation induced by palmitate or a high fat diet via an AMPK-PPARδ-dependent pathway in mice. 3-Aminoisobutyric acid is a catabolic metabolite of thymine and valine in skeletal muscle.

D-Panthenol is the biologically-active alcohol of pantothenic acid, which leads to an elevation in the amount of coenzyme A in the cell. D-panthenol exhibits nephroprotective effect in AKI, promotes tissue repair and regeneration.

2-Hydroxy-3-methylbutanoic acid (α-Hydroxyisovaleric acid) is an α-hydroxy analogue of valine and a valine precursor that reduces urea excretion. 2-Hydroxy-3-methylbutanoic acid can promote the growth of chickens and rats, and is converted into valine in the body, participating in protein synthesis and maintaining nitrogen balance, thereby supporting animal growth and development. 2-Hydroxy-3-methylbutanoic acid has a more significant effect on the valine-deficient dietary model. 2-Hydroxy-3-methylbutanoic acid is mainly used in animal nutrition research to evaluate its potential application as a nitrogen source substitute in feed.

Leucic acid (α-Hydroxyisocaproic acid) is an orally active end-product of the microbial metabolism of leucine. Leucic acid can bind to HCAR2, alters AMPK and ERK1/2 phosphorylation status, suppresses lipid synthesis, promotes catabolism, reduces adiposity, enhances lean mass and exercise capacity. Leucic acid suppresses pro-inflammatory cytokine secretion, inflammation-related gene mRNA expression. Leucic acid decreases basal protein synthesis, attenuates myotube atrophy. Leucic acid can be used for the research of obesity.

NSC 16590 inhibits the production of endogenous ethylene in the cotyledonary segments of cocklebur.

(S)-Leucic acid ((S)-2-Hydroxy-4-methylpentanoic acid) is an α-hydroxy acid found in the fermentation products of Bacillus granulobacter pectinovorum. (S)-Leucic acid is an isomer of Leucic acid (HY-30216A) and a leucine metabolite. (S)-Leucic acid acts as a D-unit subunit precursor in the biosynthesis of cryptophycins in the Nostoc cyanobacterial symbiont. (S)-Leucic acid is used in metabolism-related studies.

Acetoacetyl CoA sodium hydrate is the precursor of HMG-CoA in the mevalonate pathway. Acetoacetyl-CoA thiolase catalyzes the reaction to form acetoacetyl-CoA sodium hydrate from two acetyl-CoA molecules. Acetoacetyl CoA sodium hydrate is essential for cholesterol biosynthesis. Acetoacetyl-CoA sodium hydrate is also a intermediate in the biological breakdown and synthesis of fatty acids.

Sterculic acid is a stearoyl-CoA desaturase-1 (SCD1) inhibitor. Sterculic acid specifically inhibits the delta-9 desaturase (Δ9D) activity with an IC₅₀ value of 0.9 μM.

2-Hydroxy-2-methylbutanoic acid is a branched-chain fatty acid. 2-Hydroxy-2-methylbutanoic acid accumulates at high levels in the culture supernatants of colorectal cancer-associated bacteria. 2-Hydroxy-2-methylbutanoic acid is also present in the urine of patients with 2-hydroxyglutaric aciduria and maple syrup urine disease.

Glutaryl coenzyme A lithium is an endogenous metabolite. Glutaryl coenzyme A lithium acts on the E2k subunit to inhibit KGDHc. It serves as a substrate for the reverse reaction of E2k and does not affect the E1k or E3 subunits of KGDHc. Glutaryl coenzyme A lithium exhibits weak inhibitory activity against citrate synthase. It can be used in research on glutaryl-CoA dehydrogenase deficiency (type I glutaric acidemia).

Angelic acid is a ferroptosis inducer, targeting NRF2 degradation. Angelic acid binds to NRF2 protein and promotes NRF2 degradation via ubiquitination-proteasome pathway, relieves the inhibitory effect of NRF2 on oxidative stress and lipid peroxidation. Then, Angelic acid induces ferroptosis in tumor cells. Angelic acid can enhance the accumulation of intracellular reactive oxygen species (ROS), upregulate ferroptosis-related markers CHAC1 and PTGS2, and synergize with ferroptosis inducers to enhance anti-tumor effects. Angelic acid also has the activity of scavenging UVA-induced ROS in vitro, inhibiting skin fibroblast senescence and extracellular matrix degradation. Angelic Acid helps wound healing with sedative activity.

Acetyl-coenzyme A (Acetyl-CoA) lithium is a membrane-impermeant central metabolic intermediate, participates in the TCA cycle and oxidative phosphorylation metabolism. Acetyl-coenzyme A lithium, regulates various cellular mechanisms by providing (sole donor) acetyl groups to target amino acid residues for post-translational acetylation reactions of proteins. Acetyl Coenzyme A lithium is also a key precursor of lipid synthesis.

Pivalic acid (Trimethylmethanecarboxylic acid) is a carboxylic acid. Pivalic acid induces Carnitine deficiency. Pivalic acid conjugated with Antibiotics, such as Pivmecillinam (HY-B0810) and Pivampicillin (HY-119011), are used in urinary tract infection. Pivalic acid can be used in physical exercise research.

Myristoyl coenzyme A lithium is lithium-labeled myristoylated coenzyme A (CoA). Myristoylation is an essential process in viruses and is generally controlled by N-myristoyltransferase (NMT). And NMT is more active in colon epithelial tumors than in normal cells. Reduced Ccoenzyme A (CoA) is known to be a key regulator of NMT activity, whereas oxidized CoA does not allow NMT to promote myristoylation. Myristoyl coenzyme A blocks the demyristoylation process and has potential anticancer and antiviral mechanisms.

Mesaconic acid (Citronic acid; Methylfumaric acid) is an orally active anti-inflammatory and antioxidant agent. Mesaconic acid reduces the level of NF-κB in colon tissues, downregulates the expression of Keap1 and Bax, upregulates the expression of Nrf2 and Bcl2, and decreases the expression of Caspase-1. Mesaconic acid reduces the levels of NLRP3, ASC and Casp-1 in colon, liver and kidney tissues. Mesaconic acid reduces pro-inflammatory cytokine levels, increases the level of the anti-inflammatory cytokine IL-10, elevates NAD⁺ levels, regulates oxidative stress markers and antioxidant enzyme levels, and upregulates intestinal barrier proteins in colon, liver and kidney tissues. Mesaconic acid increases the abundance of beneficial gut bacteria and reduces the abundance of harmful gut bacteria in rapidly aging mice, and exhibits anti-aging properties. Mesaconic acid acts as a flame retardant and serves as a competitive inhibitor of fumarate reduction. Mesaconic acid can be used in the research of aging-related inflammation.

γ-Sanshool can be isolated from Zanthoxylum piperitum. γ-Sanshool inhibits human ACAT-1 and ACAT-2 activities with IC₅₀s of 12.0 and 82.6 μM.

2-Methylsuccinic acid is a normal metabolite in human fluids and the main biochemical measurable features in ethylmalonic encephalopathy.

CMPF can be found in trace constituent of urine and blood. CMPF is a biomarker of type 2 diabetes. CMPF can act on the β cell and induces impaired mitochondrial function. CMPF decreases glucose-induced ATP accumulation, and induces oxidative stress. CMPF reverses hepatic lipid accumulation and improves insulin sensitivity in obese mice.

Octanoyl coenzyme A lithium is an enoyl-CoA hydratase binder. Octanoyl coenzyme A lithium binds to the active site of enoyl-CoA hydratase, occupies the binding pocket for the fatty acid tail of the enzyme's substrate, and induces a conformational shift in a flexible protein loop via its longer octanoyl chain, forming an open channel leading to the inter-trimer gap.