Target type: molecularfunction
Binding to lamin; any of a group of intermediate-filament proteins that form the fibrous matrix on the inner surface of the nuclear envelope. [GOC:jl, ISBN:0198506732]
Lamin binding is a crucial molecular process that plays a critical role in maintaining the structural integrity and functional organization of the nucleus, the control center of eukaryotic cells. Lamins are intermediate filament proteins that form a mesh-like network, known as the nuclear lamina, beneath the inner nuclear membrane. This lamina acts as a scaffold, providing mechanical support to the nuclear envelope and influencing the spatial organization of nuclear components. The binding of proteins to lamin filaments is essential for a diverse range of cellular processes, including DNA replication, transcription, and nuclear assembly.
The molecular function of lamin binding encompasses several key aspects:
1. **Structural Support:** Lamin binding proteins contribute to the stability and integrity of the nuclear lamina. This network provides mechanical strength to the nucleus, preventing its deformation and rupture.
2. **Chromatin Organization:** Lamins interact with chromatin, the complex of DNA and proteins, influencing its spatial organization and accessibility. This interaction regulates gene expression and DNA replication by controlling the positioning and accessibility of specific DNA regions.
3. **Nuclear Envelope Assembly and Disassembly:** During cell division, the nuclear envelope breaks down and reforms. Lamin binding proteins play a critical role in these processes, facilitating the disassembly and reassembly of the nuclear lamina.
4. **Signal Transduction:** Lamins can act as signaling platforms, interacting with various signaling molecules and mediating the transmission of signals from the cytoplasm to the nucleus. This communication is crucial for regulating cellular processes such as cell growth, differentiation, and apoptosis.
5. **Protein Trafficking:** Lamins can interact with proteins that are involved in nuclear import and export, facilitating the movement of molecules between the cytoplasm and the nucleus.
6. **Disease Association:** Disruptions in lamin binding can lead to various diseases, including muscular dystrophies, premature aging syndromes, and certain types of cancer. Mutations in lamin genes or alterations in their binding partners can compromise the integrity of the nuclear lamina, affecting nuclear function and leading to disease pathogenesis.
In summary, lamin binding is a complex molecular process with diverse functions. It plays a crucial role in maintaining nuclear structure, regulating gene expression, controlling nuclear assembly, and mediating signal transduction. The disruption of lamin binding can have significant consequences for cellular function and contribute to the development of various diseases.'
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| Protein | Definition | Taxonomy |
|---|---|---|
| 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase beta-1 | A 1-phosphatidylinositol 4,5-bisphosphate phosphodiesterase beta-1 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q9NQ66] | Homo sapiens (human) |
| Serine/threonine-protein phosphatase PP1-gamma catalytic subunit | A serine/threonine-protein phosphatase PP1-gamma catalytic subunit that is encoded in the genome of human. [PRO:DNx, UniProtKB:P36873] | Homo sapiens (human) |
| Major prion protein | A PRNP gene translation product (human) that is encoded by the major prion protein open reading frame, as opposed to the alternate reading frame. [PRO:DAN] | Homo sapiens (human) |
| Compound | Definition | Classes | Roles |
|---|---|---|---|
| quinacrine | quinacrine : 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 |
| carbamazepine | carbamazepine : A dibenzoazepine that is 5H-dibenzo[b,f]azepine carrying a carbamoyl substituent at the azepine nitrogen, used as an anticonvulsant. Carbamazepine: A dibenzazepine that acts as a sodium channel blocker. It is used as an anticonvulsant for the treatment of grand mal and psychomotor or focal SEIZURES. It may also be used in the management of BIPOLAR DISORDER, and has analgesic properties. | dibenzoazepine; ureas | analgesic; anticonvulsant; antimanic drug; drug allergen; EC 3.5.1.98 (histone deacetylase) inhibitor; environmental contaminant; glutamate transporter activator; mitogen; non-narcotic analgesic; sodium channel blocker; xenobiotic |
| chloroquine | chloroquine : An aminoquinoline that is quinoline which is substituted at position 4 by a [5-(diethylamino)pentan-2-yl]amino group at at position 7 by chlorine. It is used for the treatment of malaria, hepatic amoebiasis, lupus erythematosus, light-sensitive skin eruptions, and rheumatoid arthritis. Chloroquine: The prototypical antimalarial agent with a mechanism that is not well understood. It has also been used to treat rheumatoid arthritis, systemic lupus erythematosus, and in the systemic therapy of amebic liver abscesses. | aminoquinoline; organochlorine compound; secondary amino compound; tertiary amino compound | anticoronaviral agent; antimalarial; antirheumatic drug; autophagy inhibitor; dermatologic drug |
| chlorpromazine | chlorpromazine : A substituted phenothiazine in which the ring nitrogen at position 10 is attached to C-3 of an N,N-dimethylpropanamine moiety. Chlorpromazine: The prototypical phenothiazine antipsychotic drug. Like the other drugs in this class chlorpromazine's antipsychotic actions are thought to be due to long-term adaptation by the brain to blocking DOPAMINE RECEPTORS. Chlorpromazine has several other actions and therapeutic uses, including as an antiemetic and in the treatment of intractable hiccup. | organochlorine compound; phenothiazines; tertiary amine | anticoronaviral agent; antiemetic; dopaminergic antagonist; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; phenothiazine antipsychotic drug |
| haloperidol | haloperidol : A compound composed of a central piperidine structure with hydroxy and p-chlorophenyl substituents at position 4 and an N-linked p-fluorobutyrophenone moiety. Haloperidol: A phenyl-piperidinyl-butyrophenone that is used primarily to treat SCHIZOPHRENIA and other PSYCHOSES. It is also used in schizoaffective disorder, DELUSIONAL DISORDERS, ballism, and TOURETTE SYNDROME (a drug of choice) and occasionally as adjunctive therapy in INTELLECTUAL DISABILITY and the chorea of HUNTINGTON DISEASE. It is a potent antiemetic and is used in the treatment of intractable HICCUPS. (From AMA Drug Evaluations Annual, 1994, p279) | aromatic ketone; hydroxypiperidine; monochlorobenzenes; organofluorine compound; tertiary alcohol | antidyskinesia agent; antiemetic; dopaminergic antagonist; first generation antipsychotic; serotonergic antagonist |
| imipramine | imipramine : A dibenzoazepine that is 5H-dibenzo[b,f]azepine substituted by a 3-(dimethylamino)propyl group at the nitrogen atom. Imipramine: The prototypical tricyclic antidepressant. It has been used in major depression, dysthymia, bipolar depression, attention-deficit disorders, agoraphobia, and panic disorders. It has less sedative effect than some other members of this therapeutic group. | dibenzoazepine | adrenergic uptake inhibitor; antidepressant; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor |
| phenazine | azaarene; heteranthrene; mancude organic heterotricyclic parent; phenazines; polycyclic heteroarene | ||
| promazine | promazine : A phenothiazine deriative in which the phenothiazine tricycle has a 3-(dimethylaminopropyl) group at the N-10 position. Promazine: A phenothiazine with actions similar to CHLORPROMAZINE but with less antipsychotic activity. It is primarily used in short-term treatment of disturbed behavior and as an antiemetic. | phenothiazines; tertiary amine | antiemetic; dopaminergic antagonist; EC 3.4.21.26 (prolyl oligopeptidase) inhibitor; H1-receptor antagonist; muscarinic antagonist; phenothiazine antipsychotic drug; serotonergic antagonist |
| promethazine | promethazine : A tertiary amine that is a substituted phenothiazine in which the ring nitrogen at position 10 is attached to C-3 of an N,N-dimethylpropan-2-amine moiety. Promethazine: A phenothiazine derivative with histamine H1-blocking, antimuscarinic, and sedative properties. It is used as an antiallergic, in pruritus, for motion sickness and sedation, and also in animals. | phenothiazines; tertiary amine | anti-allergic agent; anticoronaviral agent; antiemetic; antipruritic drug; H1-receptor antagonist; local anaesthetic; sedative |
| cantharidin | cantharidin : A monoterpenoid with an epoxy-bridged cyclic dicarboxylic anhydride structure secreted by many species of blister beetle, and most notably by the Spanish fly, Lytta vesicatoria. Natural toxin inhibitor of protein phosphatases 1 and 2A. Cantharidin: A toxic compound, isolated from the Spanish fly or blistering beetle (Lytta (Cantharis) vesicatoria) and other insects. It is a potent and specific inhibitor of protein phosphatases 1 (PP1) and 2A (PP2A). This compound can produce severe skin inflammation, and is extremely toxic if ingested orally. | cyclic dicarboxylic anhydride; monoterpenoid | EC 3.1.3.16 (phosphoprotein phosphatase) inhibitor; herbicide |
| acepromazine | acepromazine : A member of the class of phenothiazines that is 10H-phenothiazine substituted by an acetyl group at position 2 and a 3-(dimethylamino)propyl group at position 10. Acepromazine: A phenothiazine that is used in the treatment of PSYCHOSES. | aromatic ketone; methyl ketone; phenothiazines; tertiary amino compound | phenothiazine antipsychotic drug |
| 1,2-hexanoylphosphatidylcholine | 1,2-hexanoylphosphatidylcholine: RN given refers to cpd without isomeric designation | ||
| cyanoginosin lr | cyanoginosin LR: cyclic heptapeptide from cyanobacterium Microcystis aeruginosa microcystin-LR : A microcystin consisting of D-alanyl, L-leucyl, (3S)-3-methyl-D-beta-aspartyl,L-arginyl, 2S,3S,4E,6E,8S,9S)-3-amino-4,5,6,7-tetradehydro-9-methoxy-2,6,8-trimethyl-10-phenyldecanoyl, D-gamma-glutamyl, and 2,3-didehydro-N-methylalanyl residues joined into a 25-membered macrocycle. Produced by the cyanobacterium Microcystis aeruginosa, it is the most studied of the microcystins. | microcystin | bacterial metabolite; EC 3.1.3.16 (phosphoprotein phosphatase) inhibitor; environmental contaminant; xenobiotic |
| okadaic acid | polycyclic ether | calcium ionophore; EC 3.1.3.16 (phosphoprotein phosphatase) inhibitor; marine metabolite | |
| calyculin a | calyculin A: RN given refers to (5S-(5alpha(2R*(1S*,3S*,4S*,5R*,6R*,7E,9E,11E,13Z),3R*),7beta(E(S*)),*beta,9alpha))-isomer |