Page last updated: 2024-10-24

intracellular iron ion homeostasis

Definition

Target type: biologicalprocess

A homeostatic process involved in the maintenance of a steady state level of iron ions within a cell. [GOC:ai, GOC:mah]

Intracellular iron ion homeostasis is a tightly regulated process that ensures sufficient iron is available for essential metabolic functions while preventing harmful iron overload. This delicate balance involves intricate interactions between protein complexes that control iron uptake, storage, utilization, and export.

Iron uptake begins with the binding of transferrin, a serum protein carrying iron, to its receptor (TfR) on the cell surface. This complex is internalized via endocytosis, forming an endosome. Within the acidic environment of the endosome, iron dissociates from transferrin and is transported into the cytosol by the transmembrane protein, Nramp2 (also known as DMT1).

Once in the cytosol, iron can be utilized for various processes, including heme synthesis, DNA replication, and mitochondrial respiration. Excess iron is stored within ferritin, a protein complex that sequesters iron in a safe and bioavailable form.

To maintain iron homeostasis, cells employ a regulatory mechanism involving the iron regulatory protein (IRP) and its target mRNAs. IRPs bind to iron response elements (IREs) located within the 5' untranslated region (UTR) of certain mRNAs, including TfR and ferritin.

When iron levels are low, IRPs bind to IREs in the 5' UTR of TfR mRNA, preventing its degradation and promoting its translation, thereby increasing iron uptake. Conversely, when iron levels are high, IRPs are unable to bind to IREs in TfR mRNA due to iron-dependent conformational changes, leading to TfR mRNA degradation and reduced iron uptake.

Similarly, IRPs bind to IREs in the 5' UTR of ferritin mRNA, inhibiting its translation and decreasing iron storage when iron levels are low. When iron levels are high, IRPs release their hold on ferritin mRNA, allowing its translation and promoting iron storage.

Iron export from the cell is mediated by ferroportin, a transmembrane protein that facilitates iron efflux into the blood. Hepcidin, a hormone produced by the liver, regulates ferroportin activity by binding to it and inducing its internalization and degradation, effectively reducing iron export.

The dysregulation of intracellular iron homeostasis can lead to various pathologies, including iron deficiency anemia, iron overload disorders such as hemochromatosis, and neurodegenerative diseases. Therefore, understanding the intricate mechanisms of iron homeostasis is crucial for developing effective therapeutic strategies for these conditions.'
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Proteins (16)

ProteinDefinitionTaxonomy
DNA-directed RNA polymerase subunit betaA DNA-directed RNA polymerase subunit beta that is encoded in the genome of Escherichia coli K-12. [PRO:DNx, UniProtKB:P0A8V2]Escherichia coli K-12
DNA-directed RNA polymerase subunit beta'A DNA-directed RNA polymerase subunit beta that is encoded in the genome of Escherichia coli K-12. [PRO:DNx, UniProtKB:P0A8T7]Escherichia coli K-12
DNA-directed RNA polymerase subunit omegaA DNA-directed RNA polymerase subunit omega that is encoded in the genome of Escherichia coli K-12. [PRO:DNx, UniProtKB:P0A800]Escherichia coli K-12
DNA-directed RNA polymerase subunit alphaA DNA-directed RNA polymerase subunit alpha that is encoded in the genome of Escherichia coli K-12. [PRO:DNx, UniProtKB:P0A7Z4]Escherichia coli K-12
Myc proto-oncogene proteinA c-myc protein that is encoded in the genome of chicken. [OMA:P01109, PRO:DNx]Gallus gallus (chicken)
Proton-coupled folate transporterA proton-coupled folate transporter that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q96NT5]Homo sapiens (human)
Solute carrier family 40 member 1A solute carrier family 40 member 1 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q9NP59]Homo sapiens (human)
Egl nine homolog 1An egl nine homolog 1 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q9GZT9]Homo sapiens (human)
Proton-coupled folate transporterA proton-coupled folate transporter that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q96NT5]Homo sapiens (human)
Transmembrane protease serine 6A transmembrane protease serine 6 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q8IU80]Homo sapiens (human)
Hypoxia-inducible factor 1-alphaA hypoxia-inducible factor 1-alpha that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q16665]Homo sapiens (human)
V-type proton ATPase subunit S1A V-type proton ATPase subunit S1 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q15904]Homo sapiens (human)
Nuclear receptor coactivator 4A nuclear receptor coactivator 4 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q13772]Homo sapiens (human)
HepcidinA hepcidin that is encoded in the genome of human. [PRO:DNx, UniProtKB:P81172]Homo sapiens (human)
Myc proto-oncogene proteinA c-myc protein that is encoded in the genome of human. [PRO:CNA, UniProtKB:P01106]Homo sapiens (human)
Superoxide dismutase [Cu-Zn]A superoxide dismutase [Cu-Zn] that is encoded in the genome of human. [PRO:DNx, UniProtKB:P00441]Homo sapiens (human)

Compounds (88)

CompoundDefinitionClassesRoles
alpha-ketoglutaric acid2-oxoglutaric acid : An oxo dicarboxylic acid that consists of glutaric acid bearing an oxo substituent at position 2. It is an intermediate metabolite in Krebs cycle.oxo dicarboxylic acidfundamental metabolite
quinacrinequinacrine : A member of the class of acridines that is acridine substituted by a chloro group at position 6, a methoxy group at position 2 and a [5-(diethylamino)pentan-2-yl]nitrilo group at position 9.

Quinacrine: An acridine derivative formerly widely used as an antimalarial but superseded by chloroquine in recent years. It has also been used as an anthelmintic and in the treatment of giardiasis and malignant effusions. It is used in cell biological experiments as an inhibitor of phospholipase A2.
acridines;
aromatic ether;
organochlorine compound;
tertiary amino compound
antimalarial;
EC 1.8.1.12 (trypanothione-disulfide reductase) inhibitor
succinic acidsuccinic acid : An alpha,omega-dicarboxylic acid resulting from the formal oxidation of each of the terminal methyl groups of butane to the corresponding carboxy group. It is an intermediate metabolite in the citric acid cycle.

Succinic Acid: A water-soluble, colorless crystal with an acid taste that is used as a chemical intermediate, in medicine, the manufacture of lacquers, and to make perfume esters. It is also used in foods as a sequestrant, buffer, and a neutralizing agent. (Hawley's Condensed Chemical Dictionary, 12th ed, p1099; McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed, p1851)
alpha,omega-dicarboxylic acid;
C4-dicarboxylic acid
anti-ulcer drug;
fundamental metabolite;
micronutrient;
nutraceutical;
radiation protective agent
isocitric acidisocitric acid : A tricarboxylic acid that is propan-1-ol with a hydrogen at each of the 3 carbon positions replaced by a carboxy group.

isocitric acid: RN given refers to unlabeled parent cpd
secondary alcohol;
tricarboxylic acid
fundamental metabolite
aurintricarboxylic acidaurintricarboxylic acid : A member of the class of quinomethanes that is 3-methylidene-6-oxocyclohexa-1,4-diene-1-carboxylic acid in which the methylidene hydrogens are replaced by 4-carboxy-3-hydroxyphenyl groups. The trisodium salt is the biological stain 'chrome violet CG' while the triammonium salt is 'aluminon'.

Aurintricarboxylic Acid: A dye which inhibits protein biosynthesis at the initial stages. The ammonium salt (aluminon) is a reagent for the colorimetric estimation of aluminum in water, foods, and tissues.
monohydroxybenzoic acid;
quinomethanes;
tricarboxylic acid
fluorochrome;
histological dye;
insulin-like growth factor receptor 1 antagonist
camostatcamostat : A benzoate ester resulting from the formal condensation of the carboxy group of 4-guanidinobenzoic acid with the hydroxy group of 2-(dimethylamino)-2-oxoethyl (4-hydroxyphenyl)acetate. It is a potent inhibitor of the human transmembrane protease serine 2 (TMPRSS2) and its mesylate salt is currently under investigation for its effectiveness in COVID-19 patients.benzoate ester;
carboxylic ester;
diester;
guanidines;
tertiary carboxamide
anti-inflammatory agent;
anticoronaviral agent;
antifibrinolytic drug;
antihypertensive agent;
antineoplastic agent;
antiviral agent;
serine protease inhibitor
ciclopiroxcyclic hydroxamic acid;
hydroxypyridone antifungal drug;
pyridone
antibacterial agent;
antiseborrheic
deferoxamineDeferoxamine: Natural product isolated from Streptomyces pilosus. It forms iron complexes and is used as a chelating agent, particularly in the mesylate form.

desferrioxamine B : An acyclic desferrioxamine that is butanedioic acid in which one of the carboxy groups undergoes formal condensation with the primary amino group of N-(5-aminopentyl)-N-hydroxyacetamide and the second carboxy group undergoes formal condensation with the hydroxyamino group of N(1)-(5-aminopentyl)-N(1)-hydroxy-N(4)-[5-(hydroxyamino)pentyl]butanediamide. It is a siderophore native to Streptomyces pilosus biosynthesised by the DesABCD enzyme cluster as a high affinity Fe(III) chelator.
acyclic desferrioxaminebacterial metabolite;
ferroptosis inhibitor;
iron chelator;
siderophore
carbonyl cyanide p-trifluoromethoxyphenylhydrazonecarbonyl cyanide p-trifluoromethoxyphenylhydrazone : A hydrazone that is hydrazonomalononitrile in which one of the hydrazine hydrogens is substituted by a p-trifluoromethoxyphenyl group.

Carbonyl Cyanide p-Trifluoromethoxyphenylhydrazone: A proton ionophore that is commonly used as an uncoupling agent in biochemical studies.
aromatic ether;
hydrazone;
nitrile;
organofluorine compound
ATP synthase inhibitor;
geroprotector;
ionophore
mefenamic acidmefenamic acid : An aminobenzoic acid that is anthranilic acid in which one of the hydrogens attached to the nitrogen is replaced by a 2,3-dimethylphenyl group. Although classed as a non-steroidal anti-inflammatory drug, its anti-inflammatory properties are considered to be minor. It is used to relieve mild to moderate pain, including headaches, dental pain, osteoarthritis and rheumatoid arthritis.

Mefenamic Acid: A non-steroidal anti-inflammatory agent with analgesic, anti-inflammatory, and antipyretic properties. It is an inhibitor of cyclooxygenase.
aminobenzoic acid;
secondary amino compound
analgesic;
antipyretic;
antirheumatic drug;
EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor;
environmental contaminant;
non-steroidal anti-inflammatory drug;
xenobiotic
succinylacetone4,6-dioxoheptanoic acid : A dioxo monocarboxylic acid that is heptanoic acid in which oxo groups replace the hydrogens at positions 4 and 6. It is an abnormal metabolite of the tyrosine metabolic pathway and a marker for type 1 tyrosinaemia.

succinylacetone: inhibitor of heme biosynthesis
beta-diketone;
dioxo monocarboxylic acid
human metabolite
3-(5'-hydroxymethyl-2'-furyl)-1-benzylindazole3-(5'-hydroxymethyl-2'-furyl)-1-benzylindazole: antineoplastic; activates platelet guanylate cyclase; a radiosensitizing agent and guanylate cyclase activator; structure in first source

lificiguat : A member of the class of indazoles that is 1H-indazole which is substituted by a benzyl group at position 1 and a 5-(hydroxymethyl)-2-furyl group at position 3. It is an activator of soluble guanylate cyclase and inhibits platelet aggregation.
aromatic primary alcohol;
furans;
indazoles
antineoplastic agent;
apoptosis inducer;
platelet aggregation inhibitor;
soluble guanylate cyclase activator;
vasodilator agent
strophanthidinStrophanthidin: 3 beta,5,14-Trihydroxy-19-oxo-5 beta-card-20(22)-enolide. The aglycone cardioactive agent isolated from Strophanthus Kombe, S. gratus and other species; it is a very toxic material formerly used as digitalis. Synonyms: Apocymarin; Corchorin; Cynotoxin; Corchorgenin.14beta-hydroxy steroid;
19-oxo steroid;
3beta-hydroxy steroid;
5beta-hydroxy steroid;
cardenolides;
steroid aldehyde
cycloheximidecycloheximide : A dicarboximide that is 4-(2-hydroxyethyl)piperidine-2,6-dione in which one of the hydrogens attached to the carbon bearing the hydroxy group is replaced by a 3,5-dimethyl-2-oxocyclohexyl group. It is an antibiotic produced by the bacterium Streptomyces griseus.

Cycloheximide: Antibiotic substance isolated from streptomycin-producing strains of Streptomyces griseus. It acts by inhibiting elongation during protein synthesis.
antibiotic fungicide;
cyclic ketone;
dicarboximide;
piperidine antibiotic;
piperidones;
secondary alcohol
anticoronaviral agent;
bacterial metabolite;
ferroptosis inhibitor;
neuroprotective agent;
protein synthesis inhibitor
acriflavine chloride3,6-diamino-10-methylacridinium chloride : The 10-methochloride salt of 3,6-diaminoacridine. Note that a mixture of this compound with 3,6-diaminoacridine (proflavine) is known as acriflavine or neutral acriflavine.organic chloride saltantibacterial agent;
antiseptic drug;
carcinogenic agent;
histological dye;
intercalator
2,5-pyridinedicarboxylic acid2,5-Pyridinedicarboxylic acid: RN given refers to parent cpd

isocinchomeronic acid : A pyridinedicarboxylic acid carrying carboxy groups at positions 2 and 5.
pyridinedicarboxylic acid
glycyrrhetinic acidcyclic terpene ketone;
hydroxy monocarboxylic acid;
pentacyclic triterpenoid
immunomodulator;
plant metabolite
emetineemetine : A pyridoisoquinoline comprising emetam having methoxy substituents at the 6'-, 7'-, 10- and 11-positions. It is an antiprotozoal agent and emetic. It inhibits SARS-CoV2, Zika and Ebola virus replication and displays antimalarial, antineoplastic and antiamoebic properties.

Emetine: The principal alkaloid of ipecac, from the ground roots of Uragoga (or Cephaelis) ipecacuanha or U. acuminata, of the Rubiaceae. It is used as an amebicide in many different preparations and may cause serious cardiac, hepatic, or renal damage and violent diarrhea and vomiting. Emetine inhibits protein synthesis in EUKARYOTIC CELLS but not PROKARYOTIC CELLS.
isoquinoline alkaloid;
pyridoisoquinoline
antiamoebic agent;
anticoronaviral agent;
antiinfective agent;
antimalarial;
antineoplastic agent;
antiprotozoal drug;
antiviral agent;
autophagy inhibitor;
emetic;
expectorant;
plant metabolite;
protein synthesis inhibitor
methyl redmethyl red : An azo dye consisting of benzoic acid substituted at position 2 by a 4-[(dimethylamino)phenyl]diazenyl group.

methyl red: RN given refers to parent cpd; structure
2,4-pyridinedicarboxylic acidlutidinic acid : A pyridinedicarboxylic acid carrying carboxy groups at positions 2 and 4.pyridinedicarboxylic acid
oleanolic acidhydroxy monocarboxylic acid;
pentacyclic triterpenoid
plant metabolite
daminozidedaminozide: induces tumorsstraight-chain fatty acid
phenethyl isothiocyanatephenethyl isothiocyanate : An isothiocyanate having a phenethyl group attached to the nitrogen. It is a naturally occurring compound found in some cruciferous vegetables (e.g. watercress) and is known to possess anticancer properties.

phenethyl isothiocyanate: a dietary liver aldehyde dehydrogenase inhibitor; promotes urinary bladder carcinoma
isothiocyanateantineoplastic agent;
EC 1.2.1.3 [aldehyde dehydrogenase (NAD(+))] inhibitor;
metabolite
topotecantopotecan : A pyranoindolizinoquinoline used as an antineoplastic agent. It is a derivative of camptothecin and works by binding to the topoisomerase I-DNA complex and preventing religation of these 328 single strand breaks.

Topotecan: An antineoplastic agent used to treat ovarian cancer. It works by inhibiting DNA TOPOISOMERASES, TYPE I.
pyranoindolizinoquinolineantineoplastic agent;
EC 5.99.1.2 (DNA topoisomerase) inhibitor
ursolic acidhydroxy monocarboxylic acid;
pentacyclic triterpenoid
geroprotector;
plant metabolite
betulinic acidhydroxy monocarboxylic acid;
pentacyclic triterpenoid
anti-HIV agent;
anti-inflammatory agent;
antimalarial;
antineoplastic agent;
EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor;
plant metabolite
3-(2-pyridyl)-5,6-diphenyl-1,2,4-triazine1,2,4-triazines
leupeptinaldehyde;
tripeptide
bacterial metabolite;
calpain inhibitor;
cathepsin B inhibitor;
EC 3.4.21.4 (trypsin) inhibitor;
serine protease inhibitor
panaxadiolpanaxadiol: a protopanaxadiol with the side chain cyclized into a pyran which is an artifact of acidic hydrolysis; RN refers to (3 beta,12 beta,20R)-isomertriterpenoid saponin
maslinic acid(2Alpha,3beta)-2,3-dihydroxyolean-12-en-28-oic acid: from Luehea divaricata and Agrimonia eupatoriadihydroxy monocarboxylic acid;
pentacyclic triterpenoid
anti-inflammatory agent;
antineoplastic agent;
antioxidant;
plant metabolite
8-(4-tolylsulfonylamino)quinoline8-(4-tolylsulfonylamino)quinoline: has diabetogenic properties; can be used for fluorometric determination of zinc; structure given in first sourcesulfonamide
cryptopleurinecryptopleurine : An organic heteropentacyclic compound that is (14aR)-11,12,13,14,14a,15-hexahydro-9H-dibenzo[f,h]pyrido[1,2-b]isoquinoline substituted at positions 2, 3 and 6 by methoxy groups.

cryptopleurine: plant bark alkaloid shown to inhibit protein synthesis; RN given refers to (R)-isomer; structure
alkaloid;
alkaloid antibiotic;
aromatic ether;
organic heteropentacyclic compound
antineoplastic agent;
antiviral agent;
protein synthesis inhibitor
tanshinonetanshinone: from root of Salvia miltiorrhiza Bunge; RN given refers to tanshinone I; cardioprotective agent and neuroprotective agentabietane diterpenoidanticoronaviral agent
formylmethionyl-leucyl-phenylalanine methyl esterpeptide
celastrolmonocarboxylic acid;
pentacyclic triterpenoid
anti-inflammatory drug;
antineoplastic agent;
antioxidant;
EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor;
Hsp90 inhibitor;
metabolite
xestoquinonexestoquinone: structure given in first source; RN given refers to the (S)-isomer; RN for cpd without isomeric designation not available 5/91; isolated from the sea sponge Xestospongia sapra
methotrexatedicarboxylic acid;
monocarboxylic acid amide;
pteridines
abortifacient;
antimetabolite;
antineoplastic agent;
antirheumatic drug;
dermatologic drug;
DNA synthesis inhibitor;
EC 1.5.1.3 (dihydrofolate reductase) inhibitor;
immunosuppressive agent
gl 331GL 331: structure in first source
10-propargyl-10-deazaaminopterin10-propargyl-10-deazaaminopterin: structure in first source

pralatrexate : A pteridine that is the N-4-[1-(2,4-diaminopteridin-6-yl)pent-4-yn-2-yl]benzoyl derivative of L-glutamic acid. Used for treatment of Peripheral T-Cell Lymphoma, an aggressive form of non-Hodgkins lymphoma.
N-acyl-L-glutamic acid;
pteridines;
terminal acetylenic compound
antimetabolite;
antineoplastic agent;
EC 1.5.1.3 (dihydrofolate reductase) inhibitor
tanshinone vitanshinone VI: isolated from the root of Salvia miltiorrhiza; structure in first source
cryptotanshinonecryptotanshinone: from Salvia miltiorrhizaabietane diterpenoidanticoronaviral agent
8-(4-benzenesulfonylamino)quinoline8-(4-benzenesulfonylamino)quinoline: has diabetogenic properties; structure given in first source
tanshinone ii atashinone IIA: a cardiovascular agent with antineoplastic activity; isolated from Salvia miltiorrhiza; structure in first sourceabietane diterpenoid
avasimibemonoterpenoid
moracin mmoracin M: has been isolated from Morus alba L.; structure in first sourcebenzofurans
convallatoxinconvallatoxin : A cardenolide glycoside that consists of strophanthidin having a 6-deoxy-alpha-L-mannopyranosyl (L-rhamnosyl) group attached at position 3.

convallatoxin: PI: *CONVALLARIA (73-79)
14beta-hydroxy steroid;
19-oxo steroid;
5beta-hydroxy steroid;
alpha-L-rhamnoside;
steroid aldehyde;
steroid lactone
metabolite;
vasodilator agent
fumaric acidfumaric acid : A butenedioic acid in which the C=C double bond has E geometry. It is an intermediate metabolite in the citric acid cycle.

fumaric acid: see also record for ferrous fumarate; use FUMARATES for general fumaric acid esters
butenedioic acidfood acidity regulator;
fundamental metabolite;
geroprotector
resveratroltrans-resveratrol : A resveratrol in which the double bond has E configuration.resveratrolantioxidant;
phytoalexin;
plant metabolite;
quorum sensing inhibitor;
radical scavenger
latrunculin alatrunculin A : A bicyclic macrolide natural product consisting of a 16-membered bicyclic lactone attached to the rare 2-thiazolidinone moiety. It is obtained from the Red Sea sponge Latrunculia magnifica and from the Fiji Islands sponge Cacospongia mycofijiensis. Latrunculin A inhibits actin polymerisation, microfilament organsation and microfilament-mediated processes.

latrunculin A: 16-membered macrolide attached to 2-thiazolidinone moiety; from Red Sea sponge Latrunculia magnifica; see also latrunculin B; structure given in first source
cyclic hemiketal;
macrolide;
oxabicycloalkane;
thiazolidinone
actin polymerisation inhibitor;
metabolite;
toxin
5-carboxy-8-hydroxyquinoline5-carboxy-8-hydroxyquinoline: a JmjC histone demethylase inhibitor; structure in first sourcequinolines
5H-quinolino[8,7-c][1,2]benzothiazine 6,6-dioxidebenzothiazine
fm19g11FM19G11: structure in first sourcebenzamides
stattic1-benzothiophenes;
C-nitro compound;
sulfone
antineoplastic agent;
radiosensitizing agent;
STAT3 inhibitor
10074-g510074-G5: structure in first source
5-chloro-7-[3-pyridinyl-(2-pyridinylamino)methyl]-8-quinolinolorganochlorine compound;
quinolines
oxalylglycineN-oxalylglycine : An amino dicarboxylic acid that is iminodiacetic acid with an oxo substituent. It is used as an inhibitor of alpha-ketoglutarate dependent (EC 1.14.11.*) enzymes.

oxalylglycine: structure given in first source
amino dicarboxylic acid;
N-acylglycine
EC 1.14.11.* (oxidoreductase acting on paired donors, 2-oxoglutarate as one donor, incorporating 1 atom each of oxygen into both donors) inhibitor
5-chloro-7-[1-piperidinyl(2-pyridinyl)methyl]-8-quinolinolorganochlorine compound;
quinolines
vomifoliol(6S,9R)-vomifoliol : A (6S)-vomifoliol with a R configuration for the hydroxy group at position 9.

blumenol A: a phytotoxin isolated from Oryza sativa Awaakamai; structure in first source

vomifoliol : A fenchane monoterpenoid that is 3,5,5-trimethylcyclohex-2-en-1-one substituted by a hydroxy and a (1E)-3-hydroxybut-1-en-1-yl group at position 4.
(6S)-vomifoliolmetabolite;
phytotoxin
mammeisinneoflavonoidmetabolite
17-(dimethylaminoethylamino)-17-demethoxygeldanamycin17-(dimethylaminoethylamino)-17-demethoxygeldanamycin: structure in first source

alvespimycin : A 19-membered macrocyle that is geldanamycin in which the methoxy group attached to the benzoquinone moiety has been replaced by a 2-(N,N-dimethylamino)ethylamino group.
1,4-benzoquinones;
ansamycin;
carbamate ester;
secondary amino compound;
tertiary amino compound
Hsp90 inhibitor
bakuchiolbakuchiol: chief component of Psoralea corylifolia Linn; structure
rifamycin svrifamycin SV : A member of the class of rifamycins that exhibits antibiotic and antitubercular properties.

rifamycin SV: RN given refers to parent cpd; structure in Merck Index, 9th ed, #8009
acetate ester;
cyclic ketal;
lactam;
macrocycle;
organic heterotetracyclic compound;
polyphenol;
rifamycins
antimicrobial agent;
antitubercular agent;
bacterial metabolite
bafilomycin a1bafilomycin A1 : The most used of the bafilomycins, a family of toxic macrolide antibiotics derived from Streptomyces griseus.

bafilomycin A1: from Streptomyces griseus; structure given in first source
cyclic hemiketal;
macrolide antibiotic;
oxanes
apoptosis inducer;
autophagy inhibitor;
bacterial metabolite;
EC 3.6.3.10 (H(+)/K(+)-exchanging ATPase) inhibitor;
EC 3.6.3.14 (H(+)-transporting two-sector ATPase) inhibitor;
ferroptosis inhibitor;
fungicide;
potassium ionophore;
toxin
tws 119pyrroles
lenvatiniblenvatinib : A member of the class of quinolines that is the carboxamide of 4-{3-chloro-4-[(cyclopropylcarbamoyl)amino]phenoxy}-7-methoxyquinoline-6-carboxylic acid. A multi-kinase inhibitor and orphan drug used (as its mesylate salt) for the treatment of various types of thyroid cancer that do not respond to radioiodine.aromatic amide;
aromatic ether;
cyclopropanes;
monocarboxylic acid amide;
monochlorobenzenes;
phenylureas;
quinolines
antineoplastic agent;
EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor;
fibroblast growth factor receptor antagonist;
orphan drug;
vascular endothelial growth factor receptor antagonist
chetomin
manassantin bmanassantin B : A lignan isolated from Saururus cernuus and Saururus chinensis and has been shown to exhibit antineoplastic activity.

manassantin B: isolated from the roots of Saururus chinensis; structure in first source
benzodioxoles;
dimethoxybenzene;
lignan;
oxolanes;
secondary alcohol
antineoplastic agent;
metabolite
laurenditerpenollaurenditerpenol: from the tropical marine alga Laurenciaintricata; potently inhibits HIF-1 mediated hypoxic signaling in breast tumor cells; structure in first source
px 4782-amino-3-(4'-N,N-bis(2-chloroethyl)amino)phenylpropionic acid N-oxide: inhibits hypoxia-inducible factor-1alpha
fg-4592roxadustat : An N-acylglycine resulting from the formal condensation of the amino group of glycine with the carboxy group of 4-hydroxy-1-methyl-7-phenoxyisoquinoline-3-carboxylic acid. It is an inhibitor of hypoxia inducible factor prolyl hydroxylase (HIF-PH).

roxadustat: structure in first source
aromatic ether;
isoquinolines;
N-acylglycine
EC 1.14.11.2 (procollagen-proline dioxygenase) inhibitor;
EC 1.14.11.29 (hypoxia-inducible factor-proline dioxygenase) inhibitor
103d5r103D5R: small-molecule inhibitor of the hypoxia-inducible factor 1 pathway; structure in first source
Dihydrotanshinone Idihydrotanshinone I: extracted from Radix Salviaeabietane diterpenoidanticoronaviral agent
Moracin Pbenzofurans
3,4-dimethoxy-n-((2,2-dimethyl-2h-chromen-6-yl)methyl)-n-phenylbenzenesulfonamide3,4-dimethoxy-N-((2,2-dimethyl-2H-chromen-6-yl)methyl)-N-phenylbenzenesulfonamide: has antineoplastic activity; structure in first source
k-strophanthosideK-strophanthoside: cardiac glycoside extracted from Strophanthus kombe; sugars (glucose-glucose-cymarose) are bonded with strophanthidin
sgi-1027SGI-1027: inhibits DNA methyltransferase 1; structure in first source
jnj 42041935
ml228 probeML228 : A member of the class of 1,2,4-triazines in which the triazine ring is substituted at positions 3, 5, and 6 by pyridin-2-yl, ([biphenyl]-4-ylmethyl)amin, and methyl groups, respectively. It is an activator of the hypoxia inducible factor (HIF) pathway.

ML228 probe: structure in first source
1,2,4-triazines;
biphenyls;
pyridines;
secondary amino compound
hypoxia-inducible factor pathway activator
ascorbic acidAscorbic Acid: A six carbon compound related to glucose. It is found naturally in citrus fruits and many vegetables. Ascorbic acid is an essential nutrient in human diets, and necessary to maintain connective tissue and bone. Its biologically active form, vitamin C, functions as a reducing agent and coenzyme in several metabolic pathways. Vitamin C is considered an antioxidant.

L-ascorbate : The L-enantiomer of ascorbate and conjugate base of L-ascorbic acid, arising from selective deprotonation of the 3-hydroxy group. Required for a range of essential metabolic reactions in all animals and plants.

L-ascorbic acid : The L-enantiomer of ascorbic acid and conjugate acid of L-ascorbate.

vitamin C : Any member of a group of vitamers that belong to the chemical structural class called butenolides that exhibit biological activity against vitamin C deficiency in animals. The vitamers include L-ascorbic acid and its salt, ionized and oxidized forms.
ascorbic acid;
vitamin C
coenzyme;
cofactor;
flour treatment agent;
food antioxidant;
food colour retention agent;
geroprotector;
plant metabolite;
skin lightening agent
2-[[[4-hydroxy-2-oxo-1-(phenylmethyl)-3-quinolinyl]-oxomethyl]amino]acetic acidquinolines
cep-32496agerafenib: inhibitor of RAF family kinases; structure in first source
bay 85-3934
2-(3,4-dimethoxyphenyl)-1-(5-methoxy-2,2-dimethyl-2h-chromen-6-yl)ethanone2-(3,4-dimethoxyphenyl)-1-(5-methoxy-2,2-dimethyl-2H-chromen-6-yl)ethanone: an Hsp90 inhibitor; structure in first source
kj-pyr-9KJ-Pyr-9: antineoplastic; structure in first source
gsk1278863daprodustat : A member of the class of barbiturates that is barbituric acid substituted by cyclohexyl groups at positions 1 and 3, and by a (carboxymethyl)aminocarbonyl group at position 5. It is an inhibitor of hypoxia-inducible factor prolyl hydroxylase developed by GlaxoSmithKline for the treatment of anaemia in patients with chronic kidney disease.

GSK1278863: a HIF prolyl hydroxylase inhibitor
raltitrexedN-acyl-amino acid
makaluvamine fmakaluvamine F: a potent & cytotoxic marine alkaloid; structure in first source
pemetrexedpemetrexed disodium : An organic sodium salt that is the disodium salt of N-{4-[2-(2-amino-4-oxo-4,7-dihydro-1H-pyrrolo[2,3-d]pyrimidin-5-yl)ethyl]benzoyl}-L-glutamic acid. Inhibits thymidylate synthase (TS), 421 dihydrofolate reductase (DHFR), and glycinamide ribonucleotide formyltransferase (GARFT).N-acyl-L-glutamic acid;
pyrrolopyrimidine
antimetabolite;
antineoplastic agent;
EC 1.5.1.3 (dihydrofolate reductase) inhibitor;
EC 2.1.1.45 (thymidylate synthase) inhibitor;
EC 2.1.2.2 (phosphoribosylglycinamide formyltransferase) inhibitor