Page last updated: 2024-10-24
methyltransferase complex
Definition
Target type: cellularcomponent
A protein complex that possesses methyltransferase activity. [GOC:mah]
Methyltransferase complexes are multi-protein assemblies that play a crucial role in the transfer of methyl groups to various substrates, including DNA, RNA, proteins, and lipids. The cellular components of these complexes vary depending on the specific methyltransferase and its target molecule. However, some common components include:
**1. Catalytic subunit:** This is the core component of the complex and possesses the enzymatic activity responsible for transferring the methyl group. Different methyltransferases have distinct catalytic subunits tailored to their specific substrates.
**2. Regulatory subunits:** These subunits modulate the activity of the catalytic subunit. They can act as:
- **Scaffolding proteins:** They provide a structural framework for the complex, bringing together the catalytic and other regulatory subunits.
- **Substrate binding proteins:** They bind to the target molecule and present it to the catalytic subunit.
- **Cofactor binding proteins:** They bind and deliver essential cofactors, such as S-adenosyl methionine (SAM), the methyl donor.
- **Localization proteins:** They direct the complex to specific cellular locations, ensuring the correct methylation of target molecules.
**3. Accessory proteins:** These proteins are not essential for the catalytic activity but can enhance the efficiency or specificity of the complex. They might:
- **Modify the activity of the complex:** They can activate or inhibit the catalytic subunit or alter the affinity for specific substrates.
- **Stabilize the complex:** They can increase the stability and longevity of the complex.
**4. DNA/RNA/protein binding domains:** Some methyltransferases directly interact with their target molecules through specific domains. These domains recognize specific DNA sequences, RNA structures, or protein motifs, ensuring that the methylation occurs at the correct location.
The composition and organization of methyltransferase complexes can vary significantly depending on the specific methyltransferase and the cellular context. However, all these complexes share the common goal of mediating the transfer of methyl groups, contributing to diverse cellular processes, including DNA replication, repair, and gene expression.'
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Proteins (1)
| Protein | Definition | Taxonomy |
|---|---|---|
| Serine/threonine-protein kinase RIO1 | A serine/threonine-protein kinase RIO1 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q9BRS2] | Homo sapiens (human) |
Compounds (75)
| Compound | Definition | Classes | Roles |
|---|---|---|---|
| sb 202190 | 4-(4-fluorophenyl)-2-(4-hydroxyphenyl)-5-(4-pyridyl)imidazole: structure given in first source; inhibits p38 MAP kinase | imidazoles; organofluorine compound; phenols; pyridines | apoptosis inducer; EC 2.7.11.24 (mitogen-activated protein kinase) inhibitor |
| imatinib | aromatic amine; benzamides; N-methylpiperazine; pyridines; pyrimidines | antineoplastic agent; apoptosis inducer; tyrosine kinase inhibitor | |
| staurosporine | indolocarbazole alkaloid; organic heterooctacyclic compound | apoptosis inducer; bacterial metabolite; EC 2.7.11.13 (protein kinase C) inhibitor; geroprotector | |
| gefitinib | aromatic ether; monochlorobenzenes; monofluorobenzenes; morpholines; quinazolines; secondary amino compound; tertiary amino compound | antineoplastic agent; epidermal growth factor receptor antagonist | |
| lestaurtinib | indolocarbazole | ||
| vatalanib | monochlorobenzenes; phthalazines; pyridines; secondary amino compound | angiogenesis inhibitor; antineoplastic agent; EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor; vascular endothelial growth factor receptor antagonist | |
| ruboxistaurin | ruboxistaurin: inhibits protein kinase C beta; structure in first source | ||
| canertinib | monochlorobenzenes; morpholines; organofluorine compound; quinazolines | antineoplastic agent; tyrosine kinase inhibitor | |
| birb 796 | aromatic ether; morpholines; naphthalenes; pyrazoles; ureas | EC 2.7.11.24 (mitogen-activated protein kinase) inhibitor; immunomodulator | |
| cyc 202 | seliciclib : 2,6-Diaminopurine carrying benzylamino, (2R)-1-hydroxybutan-2-yl and isopropyl substituents at C-6, C-2-N and N-9 respectively. It is an experimental drug candidate in the family of pharmacological cyclin-dependent kinase (CDK) inhibitors. | 2,6-diaminopurines | antiviral drug; EC 2.7.11.22 (cyclin-dependent kinase) inhibitor |
| sb 203580 | imidazoles; monofluorobenzenes; pyridines; sulfoxide | EC 2.7.11.1 (non-specific serine/threonine protein kinase) inhibitor; EC 2.7.11.24 (mitogen-activated protein kinase) inhibitor; geroprotector; Hsp90 inhibitor; neuroprotective agent | |
| enzastaurin | indoles; maleimides | ||
| erlotinib | aromatic ether; quinazolines; secondary amino compound; terminal acetylenic compound | antineoplastic agent; epidermal growth factor receptor antagonist; protein kinase inhibitor | |
| lapatinib | furans; organochlorine compound; organofluorine compound; quinazolines | antineoplastic agent; tyrosine kinase inhibitor | |
| sorafenib | (trifluoromethyl)benzenes; aromatic ether; monochlorobenzenes; phenylureas; pyridinecarboxamide | angiogenesis inhibitor; anticoronaviral agent; antineoplastic agent; EC 2.7.11.1 (non-specific serine/threonine protein kinase) inhibitor; ferroptosis inducer; tyrosine kinase inhibitor | |
| pd 173955 | PD 173955: inhibits src family-selective tyrosine kinase; structure in first source | aryl sulfide; dichlorobenzene; methyl sulfide; pyridopyrimidine | tyrosine kinase inhibitor |
| s 1033 | (trifluoromethyl)benzenes; imidazoles; pyridines; pyrimidines; secondary amino compound; secondary carboxamide | anticoronaviral agent; antineoplastic agent; tyrosine kinase inhibitor | |
| bms 387032 | N-(5-(((5-(1,1-dimethylethyl)-2-oxazolyl)methyl)thio)-2-thiazolyl)-4-piperidinecarboxamide: a CDK2 inhibitor with antineoplastic activity; structure in first source N-(5-{[(5-tert-butyl-1,3-oxazol-2-yl)methyl]sulfanyl}-1,3-thiazol-2-yl)piperidine-4-carboxamide : A secondary carboxamide resulting from the formal condensation of the carboxy group of piperidine-4-carboxylic acid with the amino group of 5-{[(5-tert-butyl-1,3-oxazol-2-yl)methyl]sulfanyl}-1,3-thiazol-2-amine. It is an ATP-competitive inhibitor of CDK2, CDK7 and CDK9 kinases and exhibits anti-cancer properties. | 1,3-oxazoles; 1,3-thiazoles; organic sulfide; piperidinecarboxamide; secondary carboxamide | angiogenesis inhibitor; antineoplastic agent; apoptosis inducer; EC 2.7.11.22 (cyclin-dependent kinase) inhibitor |
| tandutinib | aromatic ether; N-arylpiperazine; N-carbamoylpiperazine; phenylureas; piperidines; quinazolines; tertiary amino compound | antineoplastic agent; EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor | |
| vx-745 | aryl sulfide; dichlorobenzene; difluorobenzene; pyrimidopyridazine | anti-inflammatory drug; apoptosis inducer; EC 2.7.11.24 (mitogen-activated protein 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 |
| zd 6474 | CH 331: structure in first source | aromatic ether; organobromine compound; organofluorine compound; piperidines; quinazolines; secondary amine | antineoplastic agent; tyrosine kinase inhibitor |
| 4-(5-benzo(1,3)dioxol-5-yl-4-pyridin-2-yl-1h-imidazol-2-yl)benzamide | 4-(5-benzo(1,3)dioxol-5-yl-4-pyridin-2-yl-1H-imidazol-2-yl)benzamide: a TGF-beta type I receptor kinase activity inhibitor | benzamides; benzodioxoles; imidazoles; pyridines | EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor |
| alvocidib | alvocidib : A synthetic dihydroxyflavone that is 5,7-dihydroxyflavone which is substituted by a 3-hydroxy-1-methylpiperidin-4-yl group at position 8 and by a chlorine at the 2' position (the (-)-3S,4R stereoisomer). A cyclin-dependent kinase 9 (CDK9) inhibitor, it has been studied for the treatment of acute myeloid leukaemia, arthritis and atherosclerotic plaque formation. alvocidib: structure given in first source | dihydroxyflavone; hydroxypiperidine; monochlorobenzenes; tertiary amino compound | antineoplastic agent; antirheumatic drug; apoptosis inducer; EC 2.7.11.22 (cyclin-dependent kinase) inhibitor |
| bosutinib | 4-((2,4-dichloro-5-methoxyphenyl)amino)-6-methoxy-7-(3-(4-methyl-1-piperazinyl)propoxy)-3-quinolinecarbonitrile: a Src kinase inhibitor; structure in first source | aminoquinoline; aromatic ether; dichlorobenzene; N-methylpiperazine; nitrile; tertiary amino compound | antineoplastic agent; tyrosine kinase inhibitor |
| su 11248 | monocarboxylic acid amide; pyrroles | angiogenesis inhibitor; antineoplastic agent; EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor; immunomodulator; neuroprotective agent; vascular endothelial growth factor receptor antagonist | |
| jnj-7706621 | sulfonamide | ||
| vx680 | N-arylpiperazine | ||
| ekb 569 | EKB 569: an EGF receptor kinase inhibitor | aminoquinoline; monocarboxylic acid amide; monochlorobenzenes; nitrile | protein kinase inhibitor |
| axitinib | aryl sulfide; benzamides; indazoles; pyridines | antineoplastic agent; tyrosine kinase inhibitor; vascular endothelial growth factor receptor antagonist | |
| pd 184352 | 2-(2-chloro-4-iodophenylamino)-N-cyclopropylmethoxy-3,4-difluorobenzamide: inhibits MAP kinase kinase; structure in first source | aminobenzoic acid | |
| bms345541 | 4(2'-aminoethyl)amino-1,8-dimethylimidazo(1,2-a)quinoxaline: structure in first source | quinoxaline derivative | |
| midostaurin | midostaurin : An organic heterooctacyclic compound that is the N-benzoyl derivative of staurosporine. | benzamides; gamma-lactam; indolocarbazole; organic heterooctacyclic compound | antineoplastic agent; EC 2.7.11.13 (protein kinase C) inhibitor |
| ki 20227 | |||
| cp 724714 | 2-methoxy-N-(3-(4-((3-methyl-4-((6-methyl-3-pyridinyl)oxy)phenyl)amino)-6-quinazolinyl)-2-propenyl)acetamide: CP-724714 is the ((2E)-isomer, 1:1.5 succinate); structure in first source | 2-methoxy-N-[3-[4-[3-methyl-4-[(6-methyl-3-pyridinyl)oxy]anilino]-6-quinazolinyl]prop-2-enyl]acetamide | antineoplastic agent; apoptosis inducer; EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor; hepatotoxic agent |
| pi103 | PI103: pyridofuropyrimidine antineoplastic; a potent inhibitor of class I phosphatidylinositide 3-kinases (PI3K); structure in first soruce | aromatic amine; morpholines; organic heterotricyclic compound; phenols; tertiary amino compound | antineoplastic agent; EC 2.7.1.137 (phosphatidylinositol 3-kinase) inhibitor; mTOR inhibitor |
| hki 272 | nitrile; quinolines | antineoplastic agent; tyrosine kinase inhibitor | |
| tofacitinib | tofacitinib : A pyrrolopyrimidine that is pyrrolo[2,3-d]pyrimidine substituted at position 4 by an N-methyl,N-(1-cyanoacetyl-4-methylpiperidin-3-yl)amino moiety. Used as its citrate salt to treat moderately to severely active rheumatoid arthritis. | N-acylpiperidine; nitrile; pyrrolopyrimidine; tertiary amino compound | antirheumatic drug; EC 2.7.10.2 (non-specific protein-tyrosine kinase) inhibitor |
| n-(6-chloro-7-methoxy-9h-beta-carbolin-8-yl)-2-methylnicotinamide | |||
| cediranib | aromatic ether | ||
| masitinib | 1,3-thiazoles; benzamides; N-alkylpiperazine; pyridines | antineoplastic agent; antirheumatic drug; tyrosine kinase inhibitor | |
| pazopanib | pazopanib : A pyrimidine that is 5-(pyrimidin-2-yl}amino-2-methylbenzenesulfonamide substituted at position 4 by a (2,3-dimethylindazol-6-yl)(methyl)amino group. Used as its hydrochloride salt for treatment of kidney cancer. pazopanib: a protein kinase inhibitor | aminopyrimidine; indazoles; sulfonamide | angiogenesis modulating agent; antineoplastic agent; tyrosine kinase inhibitor; vascular endothelial growth factor receptor antagonist |
| azd 6244 | AZD 6244: a MEK inhibitor | benzimidazoles; bromobenzenes; hydroxamic acid ester; monochlorobenzenes; organofluorine compound; secondary amino compound | anticoronaviral agent; antineoplastic agent; EC 2.7.11.24 (mitogen-activated protein kinase) inhibitor |
| 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 | |
| tg100-115 | 3,3'-(2,4-diaminopteridine-6,7-diyl)diphenol: for treatment of ischemia reperfusion injury; structure in first source | pteridines | |
| pha 665752 | dichlorobenzene; enamide; indolones; N-acylpyrrolidine; pyrrolecarboxamide; secondary carboxamide; sulfone; tertiary carboxamide | antineoplastic agent; c-Met tyrosine kinase inhibitor | |
| 6-[[5-fluoro-2-(3,4,5-trimethoxyanilino)-4-pyrimidinyl]amino]-2,2-dimethyl-4H-pyrido[3,2-b][1,4]oxazin-3-one | methoxybenzenes; substituted aniline | ||
| brivanib | aromatic ether; diether; fluoroindole; pyrrolotriazine; secondary alcohol | angiogenesis inhibitor; antineoplastic agent; apoptosis inducer; drug metabolite; EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor; fibroblast growth factor receptor antagonist | |
| at 7519 | 4-(2,6-dichlorobenzamido)-N-(piperidin-4-yl)-pyrazole-3-carboxamide : A member of the class of pryrazoles that is 4-amino-1H-pyrazole-3-carboxylic acid in which the primary amino group has been acylated by a 2,6-dichlorobenzoyl group and in which the carboxylic acid has been converted into a carboxamide by formal condensation with the primary amino group of 4-aminopiperidine. | dichlorobenzene; piperidines; pyrazoles; secondary carboxamide | antineoplastic agent; EC 2.7.11.22 (cyclin-dependent kinase) inhibitor |
| bi 2536 | |||
| nvp-ast487 | NVP-AST487: antineoplastic; a RET kinase inhibitor that blocks growth and calcitonin gene expression through distinct mechanisms in medullary thyroid cancer cells | ||
| kw 2449 | KW 2449: has both multikinase inhibitory activity and antineoplastic activity; structure in first source | ||
| abt 869 | aromatic amine; indazoles; phenylureas | angiogenesis inhibitor; antineoplastic agent; EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor | |
| gw 2580 | 5-(3-methoxy-4-((4-methoxybenzyl)oxy)benzyl)pyrimidine-2,4-diamine: a cFMS kinase inhibitor; structure in first source | ||
| crizotinib | crizotinib : A 3-[1-(2,6-dichloro-3-fluorophenyl)ethoxy]-5-[1-(piperidin-4-yl)pyrazol-4-yl]pyridin-2-amine that has R configuration at the chiral centre. The active enantiomer, it acts as a kinase inhibitor and is used for the treatment of patients with locally advanced or metastatic non-small cell lung cancer (NSCLC) Crizotinib: A piperidine and aminopyridine derivative that acts as an inhibitor of RECEPTOR PROTEIN-TYROSINE KINASES, including ANAPLASTIC LYMPHOMA KINASE (ALK) and HEPATOCYTE GROWTH FACTOR RECEPTOR (HGFR; c-Met). It is used in the treatment of NON-SMALL CELL LUNG CANCER. | 3-[1-(2,6-dichloro-3-fluorophenyl)ethoxy]-5-[1-(piperidin-4-yl)pyrazol-4-yl]pyridin-2-amine | antineoplastic agent; biomarker; EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor |
| chir-265 | aromatic ether | ||
| motesanib | pyridinecarboxamide | ||
| mln8054 | benzazepine | ||
| GDC-0879 | indanes; ketoxime; primary alcohol; pyrazoles; pyridines | antineoplastic agent; B-Raf inhibitor | |
| gsk 461364 | GSK 461364: an antineoplastic agent that inhibits polo-like kinase 1 | (trifluoromethyl)benzenes | |
| azd 1152-hqpa | AZD2811: has antineoplastic activity; structure in first source | anilide; monofluorobenzenes; primary alcohol; pyrazoles; quinazolines; secondary amino compound; secondary carboxamide; tertiary amino compound | antineoplastic agent; Aurora kinase inhibitor |
| nvp-tae684 | piperidines | ||
| fedratinib | fedratinib: a selective small-molecule inhibitor of JAK2 | sulfonamide | |
| gsk690693 | 1,2,5-oxadiazole; acetylenic compound; aromatic amine; aromatic ether; imidazopyridine; piperidines; primary amino compound; tertiary alcohol | antineoplastic agent; EC 2.7.11.1 (non-specific serine/threonine protein kinase) inhibitor | |
| gdc 0941 | pictrelisib : A sulfonamide composed of indazole, morpholine, and methylsulfonyl-substituted piperazine rings bound to a thienopyrimidine ring. | indazoles; morpholines; piperazines; sulfonamide; thienopyrimidine | EC 2.7.1.137 (phosphatidylinositol 3-kinase) inhibitor |
| plx 4720 | PLX 4720: a B-Raf(V600E) kinase inhibitor; structure in first source | aromatic ketone; difluorobenzene; organochlorine compound; pyrrolopyridine; sulfonamide | antineoplastic agent; B-Raf inhibitor |
| 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 | |
| incb-018424 | nitrile; pyrazoles; pyrrolopyrimidine | antineoplastic agent; EC 2.7.10.2 (non-specific protein-tyrosine kinase) inhibitor | |
| gsk 1838705a | organonitrogen compound; organooxygen compound | ||
| gsk 1363089 | GSK 1363089: a multikinase inhibitor that acts on Met, RON, Axl, and VEGFR; structure in first source | aromatic ether | |
| chir 258 | |||
| nintedanib | nintedanib : A member of the class of oxindoles that is a kinase inhibitor used (in the form of its ethylsulfonate salt) for the treatment of idiopathic pulmonary fibrosis and cancer. | ||
| pp242 | torkinib : A member of the class of pyrazolopyrimidines that is 1H-pyrazolo[3,4-d]pyrimidine substituted by isopropyl, 5-hydroxyindol-2-yl and amino groups at positions 1, 3 and 4 respectively. It is a potent inhibitor of mTOR and exhibits anti-cancer properties. | aromatic amine; biaryl; hydroxyindoles; phenols; primary amino compound; pyrazolopyrimidine | antineoplastic agent; mTOR inhibitor |