Target type: biologicalprocess
The chemical reactions and pathways resulting in the formation of hemoglobin, an oxygen carrying, conjugated protein containing four heme groups and globin. [GOC:jl]
Hemoglobin biosynthesis is a complex and tightly regulated process that involves the production of hemoglobin, the oxygen-carrying protein found in red blood cells. This process occurs in erythroid precursor cells, which are the cells that develop into mature red blood cells.
The synthesis of hemoglobin begins with the production of its constituent subunits: globin chains and heme. Globin chains are synthesized in the cytoplasm of erythroid precursor cells, under the control of specific genes. There are four types of globin chains: alpha, beta, gamma, and delta. The combination of these chains determines the type of hemoglobin produced. For example, adult hemoglobin (HbA) consists of two alpha and two beta chains, while fetal hemoglobin (HbF) contains two alpha and two gamma chains.
Heme synthesis, on the other hand, occurs in mitochondria, the energy-producing organelles of cells. This process begins with the condensation of succinyl CoA, a molecule derived from the citric acid cycle, and the amino acid glycine. This reaction produces alpha-amino-beta-ketoadipate, which is then converted to delta-aminolevulinate (ALA). Two molecules of ALA combine to form porphobilinogen, which is then assembled into protoporphyrin IX. Finally, ferrous iron (Fe2+) is incorporated into protoporphyrin IX to form heme.
The synthesis of heme and globin chains is tightly regulated to ensure that they are produced in the correct proportions. This regulation is achieved by several mechanisms, including the availability of iron, the expression of globin genes, and the presence of specific enzymes.
Once heme and globin chains are synthesized, they assemble into hemoglobin molecules. Each hemoglobin molecule consists of four globin chains, each bound to a heme molecule. Hemoglobin then binds to oxygen in the lungs and transports it to the tissues throughout the body.
In addition to the synthesis of hemoglobin, the erythroid precursor cells undergo a series of developmental changes, including the production of red blood cell-specific proteins and the loss of their nucleus. These changes ultimately result in the formation of mature red blood cells, which circulate in the bloodstream and deliver oxygen to the tissues.
The regulation of hemoglobin synthesis is crucial for maintaining adequate oxygen-carrying capacity in the blood. Deficiencies in hemoglobin synthesis can lead to various disorders, including anemia, which is characterized by a reduced number of red blood cells or a decreased amount of hemoglobin in the blood. Conversely, excessive production of hemoglobin can also be harmful, as it can lead to an increase in blood viscosity and an increased risk of blood clots.'
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| Protein | Definition | Taxonomy |
|---|---|---|
| Hypoxia-inducible factor 1-alpha | A hypoxia-inducible factor 1-alpha that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q16665] | Homo sapiens (human) |
| Inhibin alpha chain | An inhibin alpha chain that is encoded in the genome of human. [PRO:CNA, UniProtKB:P05111] | Homo sapiens (human) |
| Compound | Definition | Classes | Roles |
|---|---|---|---|
| ciclopirox | cyclic hydroxamic acid; hydroxypyridone antifungal drug; pyridone | antibacterial agent; antiseborrheic | |
| deferoxamine | Deferoxamine: 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 desferrioxamine | bacterial metabolite; ferroptosis inhibitor; iron chelator; siderophore |
| carbonyl cyanide p-trifluoromethoxyphenylhydrazone | carbonyl 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 |
| 3-(5'-hydroxymethyl-2'-furyl)-1-benzylindazole | 3-(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 |
| strophanthidin | Strophanthidin: 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 | |
| cycloheximide | cycloheximide : 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 chloride | 3,6-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 salt | antibacterial agent; antiseptic drug; carcinogenic agent; histological dye; intercalator |
| emetine | emetine : 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 |
| phenethyl isothiocyanate | phenethyl 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 | isothiocyanate | antineoplastic agent; EC 1.2.1.3 [aldehyde dehydrogenase (NAD(+))] inhibitor; metabolite |
| topotecan | topotecan : 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. | pyranoindolizinoquinoline | antineoplastic agent; EC 5.99.1.2 (DNA topoisomerase) inhibitor |
| ursolic acid | hydroxy monocarboxylic acid; pentacyclic triterpenoid | geroprotector; plant metabolite | |
| panaxadiol | panaxadiol: 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)-isomer | triterpenoid saponin | |
| cryptopleurine | cryptopleurine : 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 |
| tanshinone | tanshinone: from root of Salvia miltiorrhiza Bunge; RN given refers to tanshinone I; cardioprotective agent and neuroprotective agent | abietane diterpenoid | anticoronaviral agent |
| celastrol | monocarboxylic acid; pentacyclic triterpenoid | anti-inflammatory drug; antineoplastic agent; antioxidant; EC 5.99.1.3 [DNA topoisomerase (ATP-hydrolysing)] inhibitor; Hsp90 inhibitor; metabolite | |
| xestoquinone | xestoquinone: 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 | ||
| gl 331 | GL 331: structure in first source | ||
| tanshinone vi | tanshinone VI: isolated from the root of Salvia miltiorrhiza; structure in first source | ||
| cryptotanshinone | cryptotanshinone: from Salvia miltiorrhiza | abietane diterpenoid | anticoronaviral agent |
| tanshinone ii a | tashinone IIA: a cardiovascular agent with antineoplastic activity; isolated from Salvia miltiorrhiza; structure in first source | abietane diterpenoid | |
| moracin m | moracin M: has been isolated from Morus alba L.; structure in first source | benzofurans | |
| convallatoxin | convallatoxin : 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 |
| latrunculin a | latrunculin 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 |
| fm19g11 | FM19G11: structure in first source | benzamides | |
| stattic | 1-benzothiophenes; C-nitro compound; sulfone | antineoplastic agent; radiosensitizing agent; STAT3 inhibitor | |
| 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)-vomifoliol | metabolite; phytotoxin |
| mammeisin | neoflavonoid | metabolite | |
| 17-(dimethylaminoethylamino)-17-demethoxygeldanamycin | 17-(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 |
| cannabigerol | cannabigerol : A member of the class of resorcinols that is resorcinol which is substituted by a (2E)-3,7-dimethylocta-2,6-dien-1-yl group at position 2 and by a pentyl group at position 5. It is a natural product found in Cannabis sativa and Helichrysum species. cannabigerol: RN given refers to (E)-isomer; structure given in first source | phytocannabinoid; resorcinols | anti-inflammatory agent; antibacterial agent; antioxidant; appetite enhancer; cannabinoid receptor agonist; neuroprotective agent; plant metabolite |
| bakuchiol | bakuchiol: chief component of Psoralea corylifolia Linn; structure | ||
| chetomin | |||
| manassantin b | manassantin 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 |
| laurenditerpenol | laurenditerpenol: from the tropical marine alga Laurenciaintricata; potently inhibits HIF-1 mediated hypoxic signaling in breast tumor cells; structure in first source | ||
| px 478 | 2-amino-3-(4'-N,N-bis(2-chloroethyl)amino)phenylpropionic acid N-oxide: inhibits hypoxia-inducible factor-1alpha | ||
| 103d5r | 103D5R: small-molecule inhibitor of the hypoxia-inducible factor 1 pathway; structure in first source | ||
| Dihydrotanshinone I | dihydrotanshinone I: extracted from Radix Salviae | abietane diterpenoid | anticoronaviral agent |
| Moracin P | benzofurans | ||
| 3,4-dimethoxy-n-((2,2-dimethyl-2h-chromen-6-yl)methyl)-n-phenylbenzenesulfonamide | 3,4-dimethoxy-N-((2,2-dimethyl-2H-chromen-6-yl)methyl)-N-phenylbenzenesulfonamide: has antineoplastic activity; structure in first source | ||
| k-strophanthoside | K-strophanthoside: cardiac glycoside extracted from Strophanthus kombe; sugars (glucose-glucose-cymarose) are bonded with strophanthidin | ||
| ml228 probe | ML228 : 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 |
| 2-(3,4-dimethoxyphenyl)-1-(5-methoxy-2,2-dimethyl-2h-chromen-6-yl)ethanone | 2-(3,4-dimethoxyphenyl)-1-(5-methoxy-2,2-dimethyl-2H-chromen-6-yl)ethanone: an Hsp90 inhibitor; structure in first source | ||
| makaluvamine f | makaluvamine F: a potent & cytotoxic marine alkaloid; structure in first source |