ligase activity
Definition
Target type: molecularfunction
Catalysis of the joining of two molecules, or two groups within a single molecule, using the energy from the hydrolysis of ATP, a similar triphosphate, or a pH gradient. [GOC:mah]
Ligases catalyze the joining of two molecules, typically by forming a new covalent bond between them. This process usually requires energy, which is often supplied by the hydrolysis of ATP or a similar high-energy molecule. Ligases are essential for a wide range of biological processes, including DNA replication, protein synthesis, and the repair of damaged DNA. Ligases are highly specific for the substrates they join. This specificity is determined by the three-dimensional structure of the enzyme, which allows it to bind to and interact with specific molecules. Ligases play a critical role in maintaining the integrity and function of cells. Without ligases, cells would be unable to replicate their DNA, synthesize proteins, or repair damaged DNA. This would lead to cell death and disease.'
"
Proteins (2)
| Protein | Definition | Taxonomy |
|---|---|---|
| Dihydrofolate synthase/folylpolyglutamate synthase | A dihydrofolate synthase/folylpolyglutamate synthase that is encoded in the genome of Escherichia coli K-12. [PRO:DNx, UniProtKB:P08192] | Escherichia coli K-12 |
| E3 ubiquitin-protein ligase Mdm2 | An E3 ubiquitin-protein ligase Mdm2 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q00987] | Homo sapiens (human) |
Compounds (20)
| Compound | Definition | Classes | Roles |
|---|---|---|---|
| catechol | catechols | allelochemical; genotoxin; plant metabolite | |
| gossypol | Gossypol: A dimeric sesquiterpene found in cottonseed (GOSSYPIUM). The (-) isomer is active as a male contraceptive (CONTRACEPTIVE AGENTS, MALE) whereas toxic symptoms are associated with the (+) isomer. | ||
| quinone | 1,4-benzoquinone : The simplest member of the class of 1,4-benzoquinones, obtained by the formal oxidation of hydroquinone to the corresponding diketone. It is a metabolite of benzene. benzoquinone : The simplest members of the class of benzoquinones, consisting of cyclohexadiene which is substituted by two oxo groups. quinone : Compounds having a fully conjugated cyclic dione structure, such as that of benzoquinones, derived from aromatic compounds by conversion of an even number of -CH= groups into -C(=O)- groups with any necessary rearrangement of double bonds (polycyclic and heterocyclic analogues are included). | 1,4-benzoquinones | cofactor; human xenobiotic metabolite; mouse metabolite |
| vorinostat | vorinostat : A dicarboxylic acid diamide comprising suberic (octanedioic) acid coupled to aniline and hydroxylamine. A histone deacetylase inhibitor, it is marketed under the name Zolinza for the treatment of cutaneous T cell lymphoma (CTCL). Vorinostat: A hydroxamic acid and anilide derivative that acts as a HISTONE DEACETYLASE inhibitor. It is used in the treatment of CUTANEOUS T-CELL LYMPHOMA and SEZARY SYNDROME. | dicarboxylic acid diamide; hydroxamic acid | antineoplastic agent; apoptosis inducer; EC 3.5.1.98 (histone deacetylase) inhibitor |
| apomorphine | Apomorphine: A derivative of morphine that is a dopamine D2 agonist. It is a powerful emetic and has been used for that effect in acute poisoning. It has also been used in the diagnosis and treatment of parkinsonism, but its adverse effects limit its use. | aporphine alkaloid | alpha-adrenergic drug; antidyskinesia agent; antiparkinson drug; dopamine agonist; emetic; serotonergic drug |
| cytarabine | beta-D-arabinoside; monosaccharide derivative; pyrimidine nucleoside | antimetabolite; antineoplastic agent; antiviral agent; immunosuppressive agent | |
| nutlin 3 | stilbenoid | ||
| nutlin 2 | |||
| nutlin 1 | nutlin 1: an MDM2 antagonist; structure in first source | ||
| nutlin-3a | nutlin 3: an MDM2 antagonist; structure in first source | stilbenoid | |
| MI-63 | MI-63 : An azaspiro compound resulting from the formal fusion of position 3 of 6-chloro-oxindole with position 3 of (2R,3SS5S)-3-(3-chloro-2-fluorophenyl)-5-(2,2-dimethylpropyl)-N-[2-(morpholin-4-yl)ethyl]pyrrolidine-2-carboxamide. It is a potent inhibitor of the MDM2-p53 interaction. | azaspiro compound; monochlorobenzenes; monofluorobenzenes; morpholines; oxindoles; pyrrolidines; secondary carboxamide | apoptosis inducer |
| nutlin-3b | Nutlin; piperazinone | anticoronaviral agent | |
| pb 12 | |||
| spautin-1 | |||
| nvp-cgm097 | NVP-CGM097: an MDM2 and HDM2 inhibitor; structure in first source | ||
| rg7388 | RG7388: structure in first source | ||
| sar405838 | SAR405838: an inhibitor of the interaction of MDM2 and p53; has antineoplastic activity; structure in first source | ||
| rg7112 | |||
| amg 232 | |||
| dihydrofolate | dihydrofolic acid : A folic acid derivative acted upon by dihydrofolate reductase to produce tetrahydrofolic acid. It interacts with bacteria during cell division and is targeted by various drugs to prevent nucleic acid synthesis. | dihydrofolic acids | Escherichia coli metabolite; mouse metabolite |