Page last updated: 2024-10-24
translation release factor complex
Definition
Target type: cellularcomponent
A heterodimeric complex involved in the release of a nascent polypeptide chain from a ribosome. [ISBN:0198547684]
The translation release factor (RF) complex is a critical component of protein synthesis, responsible for terminating translation and releasing the newly synthesized polypeptide chain from the ribosome. This complex is composed of multiple proteins, and its cellular component can be described as follows:
1. **Ribosome**: The RF complex interacts with the ribosome, specifically with the A-site of the large ribosomal subunit (60S in eukaryotes). The ribosome provides the framework for translation and ensures proper positioning of the RF complex within the mRNA-ribosome complex.
2. **mRNA**: The RF complex binds to a stop codon in the mRNA, signaling the termination of translation. The specific stop codon dictates which RF factor will bind.
3. **Release factors (eRF1 and eRF3 in eukaryotes)**: These proteins are the core components of the RF complex. eRF1 recognizes the stop codon and triggers the release of the polypeptide chain. eRF3 acts as a GTPase, facilitating the recruitment of eRF1 to the ribosome and stimulating its activity.
4. **GTP**: GTP provides energy for the release of the polypeptide chain.
5. **Other factors**: In addition to the core components, other factors may be involved in the RF complex, such as ribosome recycling factors (RRFs) and eukaryotic translation initiation factors (eIFs). These factors contribute to the disassembly of the ribosome and the recycling of its components for subsequent translation rounds.
In summary, the cellular component of the translation release factor complex consists of the ribosome, mRNA, release factors (eRF1 and eRF3), GTP, and potentially other auxiliary factors. This complex acts as a molecular machine to ensure the precise termination of protein synthesis and the release of newly synthesized proteins from the ribosome.'
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Proteins (1)
| Protein | Definition | Taxonomy |
|---|---|---|
| Eukaryotic peptide chain release factor GTP-binding subunit ERF3B | A eukaryotic peptide chain release factor GTP-binding subunit ERF3B that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q8IYD1] | Homo sapiens (human) |
Compounds (49)
| Compound | Definition | Classes | Roles |
|---|---|---|---|
| fasudil | fasudil : An isoquinoline substituted by a (1,4-diazepan-1-yl)sulfonyl group at position 5. It is a Rho-kinase inhibitor and its hydrochloride hydrate form is approved for the treatment of cerebral vasospasm and cerebral ischemia. fasudil: intracellular calcium antagonist; structure in first source | isoquinolines; N-sulfonyldiazepane | antihypertensive agent; calcium channel blocker; EC 2.7.11.1 (non-specific serine/threonine protein kinase) inhibitor; geroprotector; neuroprotective agent; nootropic agent; vasodilator agent |
| imatinib | aromatic amine; benzamides; N-methylpiperazine; pyridines; pyrimidines | antineoplastic agent; apoptosis inducer; tyrosine kinase inhibitor | |
| gefitinib | aromatic ether; monochlorobenzenes; monofluorobenzenes; morpholines; quinazolines; secondary amino compound; tertiary amino compound | antineoplastic agent; epidermal growth factor receptor antagonist | |
| canertinib | monochlorobenzenes; morpholines; organofluorine compound; quinazolines | antineoplastic agent; tyrosine kinase inhibitor | |
| lapatinib | furans; organochlorine compound; organofluorine compound; quinazolines | antineoplastic agent; tyrosine kinase inhibitor | |
| dasatinib | dasatinib (anhydrous) : An aminopyrimidine that is 2-methylpyrimidine which is substituted at position 4 by the primary amino group of 2-amino-1,3-thiazole-5-carboxylic acid and at position 6 by a 4-(2-hydroxyethyl)piperazin-1-yl group, and in which the carboxylic acid group has been formally condensed with 2-chloro-6-methylaniline to afford the corresponding amide. A multi-targeted kinase inhibitor, it is used, particularly as the monohydrate, for the treatment of chronic, accelerated, or myeloid or lymphoid blast phase chronic myeloid leukemia. Note that the name 'dasatinib' is used to refer to the monohydrate (USAN) as well as to anhydrous dasatinib (INN). N-(2-chloro-6-methylphenyl)-2-((6-(4-(2-hydroxyethyl)piperazin-1-yl)-2-methylpyrimidin-4-yl)amino)-1,3-thiazole-5-carboxamide: a dasatinib prodrug; structure in first source | 1,3-thiazoles; aminopyrimidine; monocarboxylic acid amide; N-(2-hydroxyethyl)piperazine; N-arylpiperazine; organochlorine compound; secondary amino compound; tertiary amino compound | anticoronaviral agent; antineoplastic agent; tyrosine kinase inhibitor |
| ha 1100 | HA 1100: intracellular calcium antagonist | ||
| vx680 | N-arylpiperazine | ||
| everolimus | cyclic acetal; cyclic ketone; ether; macrolide lactam; primary alcohol; secondary alcohol | anticoronaviral agent; antineoplastic agent; geroprotector; immunosuppressive agent; mTOR inhibitor | |
| axitinib | aryl sulfide; benzamides; indazoles; pyridines | antineoplastic agent; tyrosine kinase inhibitor; vascular endothelial growth factor receptor antagonist | |
| temsirolimus | macrolide lactam | ||
| ripasudil | isoquinolines | ||
| ly-2157299 | LY-2157299 : A pyrrolopyrazole that is 5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole which is substituted at positions 2 and 3 by 6-methylpyridin-2-yl and 6-(aminocarbonyl)quinolin-4-yl groups, respectively. A Transforming growth factor-betaRI (TGF-betaRI) kinase inhibitor, it blocks TGF-beta-mediated tumor growth in glioblastoma. LY-2157299: an orally active transforming growth factor beta receptor (TGF-beraR) kinase inhibitor | aromatic amide; methylpyridines; monocarboxylic acid amide; pyrrolopyrazole; quinolines | antineoplastic agent; TGFbeta receptor antagonist |
| su 14813 | 5-((5-fluoro-2-oxo-1,2-dihydro-3H-indol-3-ylidene)methyl)-N-(2-hydroxy-3-morpholin-4-ylpropyl)-2,4-dimethyl-1H-pyrrole-3-carboxamide: has both antineoplastic and antiangiogenic activities; structure in first source | ||
| bibw 2992 | aromatic ether; enamide; furans; monochlorobenzenes; organofluorine compound; quinazolines; secondary carboxamide; tertiary amino compound | antineoplastic agent; tyrosine kinase inhibitor | |
| crenolanib | aminopiperidine; aromatic ether; benzimidazoles; oxetanes; quinolines; tertiary amino compound | angiogenesis inhibitor; antineoplastic agent; apoptosis inducer; EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor | |
| np 031112 | tideglusib : A member of the class of thiadiazolidines that is 1,2,4-thiadiazolidine-3,5-dione which is substituted by a naphthalen-1-yl group at position 2 and by a benzyl group at position 4. It is a non-ATP competitive inhibitor of glycogen synthase kinase 3beta (GSK3beta) and has neuroprotective effects. Currently under clinical investigation for the treatment of Alzheimer's disease and progressive supranuclear palsy. tideglusib: an NSAID and neuroprotective agent | benzenes; naphthalenes; thiadiazolidine | anti-inflammatory agent; apoptosis inducer; EC 2.7.11.26 (tau-protein kinase) inhibitor; neuroprotective agent |
| inno-406 | biaryl | ||
| ridaforolimus | macrolide lactam | ||
| motesanib | pyridinecarboxamide | ||
| trametinib | acetamides; aromatic amine; cyclopropanes; organofluorine compound; organoiodine compound; pyridopyrimidine; ring assembly | anticoronaviral agent; antineoplastic agent; EC 2.7.11.24 (mitogen-activated protein kinase) inhibitor; geroprotector | |
| ly2603618 | ureas | ||
| dactolisib | dactolisib : An imidazoquinoline that is 3-methyl-2-oxo-2,3-dihydro-1H-imidazo[4,5-c]quinoline substituted at position 1 by a 4-(1-cyanoisopropyl)phenyl group and at position 8 by a quinolin-3-yl group. A dual PI3K/mTOR inhibitor used in cancer treatment. dactolisib: antineoplastic agent that inhibits both phosphatidylinositol 3-kinase and mTOR | imidazoquinoline; nitrile; quinolines; ring assembly; ureas | antineoplastic agent; EC 2.7.1.137 (phosphatidylinositol 3-kinase) inhibitor; mTOR inhibitor |
| 2-amino-8-ethyl-4-methyl-6-(1H-pyrazol-5-yl)-7-pyrido[2,3-d]pyrimidinone | pyrazolopyridine | ||
| azd 1480 | |||
| fedratinib | fedratinib: a selective small-molecule inhibitor of JAK2 | sulfonamide | |
| azd5438 | sulfonamide | ||
| pf 04217903 | quinolines | ||
| kx-01 | |||
| mk 5108 | aromatic ether | ||
| sgx 523 | aryl sulfide; biaryl; pyrazoles; quinolines; triazolopyridazine | c-Met tyrosine kinase inhibitor; nephrotoxic agent | |
| quizartinib | benzoimidazothiazole; isoxazoles; morpholines; phenylureas | antineoplastic agent; EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor; necroptosis inhibitor | |
| at13148 | |||
| sns 314 | SNS 314: an aurora kinase inhibitor; structure in first source | ureas | |
| cabozantinib | cabozantinib : A dicarboxylic acid diamide that is N-phenyl-N'-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide in which the hydrogen at position 4 on the phenyl ring is substituted by a (6,7-dimethoxyquinolin-4-yl)oxy group. A multi-tyrosine kinase inhibitor, used (as its malate salt) for the treatment of progressive, metastatic, medullary thyroid cancer. cabozantinib: a multikinase inhibitor | aromatic ether; dicarboxylic acid diamide; organofluorine compound; quinolines | antineoplastic agent; tyrosine kinase inhibitor |
| incb-018424 | nitrile; pyrazoles; pyrrolopyrimidine | antineoplastic agent; EC 2.7.10.2 (non-specific protein-tyrosine kinase) inhibitor | |
| plx4032 | aromatic ketone; difluorobenzene; monochlorobenzenes; pyrrolopyridine; sulfonamide | antineoplastic agent; B-Raf inhibitor | |
| as 703026 | pyridinecarboxamide | ||
| baricitinib | azetidines; nitrile; pyrazoles; pyrrolopyrimidine; sulfonamide | anti-inflammatory agent; antirheumatic drug; antiviral agent; EC 2.7.10.2 (non-specific protein-tyrosine kinase) inhibitor; immunosuppressive agent | |
| dabrafenib | 1,3-thiazoles; aminopyrimidine; organofluorine compound; sulfonamide | anticoronaviral agent; antineoplastic agent; B-Raf inhibitor | |
| mk-8033 | 1-(3-(1-methyl-1H-pyrazol-4-yl)-5-oxo-5H-benzo(4,5)cyclohepta(1,2-b)pyridin-7-yl)-N-(pyridin-2-ylmethyl)methanesulfonamide: inhibits both Ron and c-Met kinases; structure in first source | ||
| alectinib | aromatic ketone; morpholines; nitrile; organic heterotetracyclic compound; piperidines | antineoplastic agent; EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor | |
| encorafenib | encorafenib: a BRAF inhibitor | ||
| bms-911543 | N,N-dicyclopropyl-4-((1,5-dimethyl-1H-pyrazol-3-yl)amino)-6-ethyl-1-methyl-1,6-dihydroimidazo(4,5-d)pyrrolo(2,3b)pyridine-7-carboxamide: has antineoplastic activity; structure in first source | ||
| azd1208 | |||
| osimertinib | osimertinib : A member of the class of aminopyrimidines that is 4-(1-methylindol-3-yl)pyrimidin-2-amine in which one of the amino hydrogens is replaced by a 2-methoxy-4-[2-(dimethylamino)ethyl](methyl)amino-5-acrylamidophenyl group. Used (as the mesylate salt) for treatment of EGFR T790M mutation positive non-small cell lung cancer. osimertinib: an EGFR tyrosine kinase inhibitor | acrylamides; aminopyrimidine; biaryl; indoles; monomethoxybenzene; secondary amino compound; secondary carboxamide; substituted aniline; tertiary amino compound | antineoplastic agent; epidermal growth factor receptor antagonist |
| otssp167 | OTS167: inhibitor of maternal embryonic leucine zipper kinase (MELK) with potential antineoplastic activity | ||
| osi 027 | OSI 027: inhibits both mTORC1 and mTORC2; structure in first source | ||
| bay 80-6946 | copanlisib : An imidazoquinazoline that is 2,3-dihydroimidazo[1,2-c]quinazoline substituted by (2-aminopyrimidine-5-carbonyl)amino, methoxy, and 3-(morpholin-4-yl)propoxy groups at positions 5, 7 and 8, respectively. It is a intravenous pan-class I PI3K inhibitor used for the treatment of relapsed follicular lymphoma in patients who have received at least 2 prior systemic therapies. copanlisib: an antineoplastic agent with PI3K inhibitory activity; structure in first source |