Target type: molecularfunction
Binding to a protein to prevent it from interacting with other partners or to inhibit its localization to the area of the cell or complex where it is active. [PMID:1493333]
Protein sequestering activity is a molecular function that involves the binding and retention of other proteins within a specific compartment or structure, effectively removing them from their normal cellular location and function. This process often plays a crucial role in regulating cellular processes by:
1. **Controlling protein activity:** By sequestering proteins, cells can modulate their activity, preventing them from interacting with their targets or performing their normal functions. This can be particularly important for controlling signaling pathways or preventing the inappropriate activation of enzymes.
2. **Preventing aggregation:** Sequestering proteins can help prevent the formation of harmful protein aggregates, which can occur when misfolded or damaged proteins accumulate in cells. This is particularly important for maintaining protein homeostasis and preventing neurodegenerative diseases.
3. **Directing protein trafficking:** Sequestering proteins can also be used to direct their trafficking to specific locations within the cell, ensuring their proper localization and function.
4. **Modulating cellular responses:** Protein sequestration can be used to modulate cellular responses to different stimuli, such as stress or infection. For example, sequestering key transcription factors can prevent the activation of specific genes in response to stress.
5. **Protecting proteins from degradation:** Sequestering proteins can protect them from degradation by cellular proteases. This can be important for maintaining the levels of essential proteins or for regulating the lifespan of proteins.
The mechanism of protein sequestration can vary depending on the specific protein and cellular context. Some common mechanisms include:
* **Binding to specific proteins:** Proteins can be sequestered by binding to specific chaperones or other regulatory proteins that prevent them from interacting with their targets.
* **Localization to specific compartments:** Proteins can be sequestered within specific cellular compartments, such as the nucleus, cytoplasm, or organelles.
* **Formation of protein complexes:** Proteins can be sequestered within multiprotein complexes, which can regulate their activity and prevent them from interacting with other proteins.
Overall, protein sequestering activity is a versatile mechanism that plays a critical role in regulating cellular processes and maintaining cellular homeostasis.'
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Protein | Definition | Taxonomy |
---|---|---|
Smoothened homolog | A protein smoothened that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q99835] | Homo sapiens (human) |
RISC-loading complex subunit TARBP2 | A RISC-loading complex subunit TARBP2 that is encoded in the genome of human. [PRO:DNx, UniProtKB:Q15633] | Homo sapiens (human) |
14-3-3 protein zeta/delta | A 14-3-3 protein zeta/delta that is encoded in the genome of human. [PRO:DNx] | Homo sapiens (human) |
14-3-3 protein gamma | A 14-3-3 protein gamma that is encoded in the genome of human. [PRO:DNx, UniProtKB:P61981] | Homo sapiens (human) |
NF-kappa-B inhibitor alpha | An NF-kappa-B inhibitor alpha that is encoded in the genome of human. [TLR:AMM, UniProtKB:P25963] | Homo sapiens (human) |
Compound | Definition | Classes | Roles |
---|---|---|---|
enoxacin | enoxacin : A 1,8-naphthyridine derivative that is 1,4-dihydro-1,8-naphthyridine with an ethyl group at the 1 position, a carboxy group at the 3-position, an oxo sustituent at the 4-position, a fluoro substituent at the 5-position and a piperazin-1-yl group at the 7 position. An antibacterial, it is used in the treatment of urinary-tract infections and gonorrhoea. Enoxacin: A broad-spectrum 6-fluoronaphthyridinone antibacterial agent that is structurally related to NALIDIXIC ACID. | 1,8-naphthyridine derivative; amino acid; fluoroquinolone antibiotic; monocarboxylic acid; N-arylpiperazine; quinolone antibiotic | antibacterial drug; DNA synthesis inhibitor |
schisanhenol b | schisanhenol B: isolated from kernels of Schisandra rubriflora; structure given in first source | ||
8-(4-benzenesulfonylamino)quinoline | 8-(4-benzenesulfonylamino)quinoline: has diabetogenic properties; structure given in first source | ||
cyclopamine | piperidines | glioma-associated oncogene inhibitor | |
pd 173955 | PD 173955: inhibits src family-selective tyrosine kinase; structure in first source | aryl sulfide; dichlorobenzene; methyl sulfide; pyridopyrimidine | tyrosine kinase inhibitor |
benzyloxycarbonylleucyl-leucyl-leucine aldehyde | benzyloxycarbonylleucyl-leucyl-leucine aldehyde: proteasome inhibitor N-benzyloxycarbonyl-L-leucyl-L-leucyl-L-leucinal : A tripeptide that is L-leucyl-L-leucyl-L-leucine in which the C-terminal carboxy group has been reduced to the corresponding aldehyde and the N-terminal amino group is protected as its benzyloxycarbonyl derivative. | amino aldehyde; carbamate ester; tripeptide | proteasome inhibitor |
5H-quinolino[8,7-c][1,2]benzothiazine 6,6-dioxide | benzothiazine | ||
mrs2159 | MRS2159: an antagonist of both P2X1 and P2X7 receptors | ||
purmorphamine | purmorphamine : A member of the class of purines that is purine substituted at C-2 by a 1-naphthyloxy group, at C-4 by a 4-morpholinophenylamino group, and at N-9 by a cyclohexyl group. purmorphamine: structure in first source | aromatic ether; morpholines; purines; secondary amino compound | osteogenesis regulator; SMO receptor agonist |
cur 61414 | CUR 61414: inhibits the hedehog signaling pathway; structure in first source | ||
abt 869 | aromatic amine; indazoles; phenylureas | angiogenesis inhibitor; antineoplastic agent; EC 2.7.10.1 (receptor protein-tyrosine kinase) inhibitor | |
nsc-287088 | |||
lde225 | sonidegib : A member of the classo of biphenyls that is the amide obtained by formal condensation of the carboxy group of 2-methyl-4'-(trifluoromethoxy)[1,1'-biphenyl]-3-carboxylic acid with the amino group of 6-(2,6-dimethylmorpholin-4-yl)pyridin-3-amine. Used (as its phosphate salt) for treatment of locally advanced basal cell carcinoma. sonidegib: specific Smoothened/Smo antagonist | aminopyridine; aromatic ether; benzamides; biphenyls; morpholines; organofluorine compound; tertiary amino compound | antineoplastic agent; Hedgehog signaling pathway inhibitor; SMO receptor antagonist |
gdc 0449 | HhAntag691: inhibits the hedgehog pathway and ABC transporters; has antineoplastic activity | benzamides; monochlorobenzenes; pyridines; sulfone | antineoplastic agent; Hedgehog signaling pathway inhibitor; SMO receptor antagonist; teratogenic agent |
N-[[3-fluoro-4-[[2-(1-methyl-4-imidazolyl)-7-thieno[3,2-b]pyridinyl]oxy]anilino]-sulfanylidenemethyl]-2-phenylacetamide | thioureas | ||
ipi-926 | IPI-926: a semisynthetic derivative of cyclopamine that is a smoothened inhibitor with antineoplastic activity; structure in first source | piperidines | |
gsk 1363089 | GSK 1363089: a multikinase inhibitor that acts on Met, RON, Axl, and VEGFR; structure in first source | aromatic ether | |
tak-441 | TAK-441: structure in first source | ||
physalin a | physalin A: an anti-inflammatory agent isolated from Physalis alkekengi var; structure in first source | physalin | |
ly2940680 | |||
physalin f | physalin F : A physalin with antimalarial and antitumour activities isolated from Physalis angulata. physalin F: has immunosuppressive activity; from Physalis angulata L; structure given in first source | enone; epoxy steroid; lactone; physalin | antileishmanial agent; antimalarial; antineoplastic agent; apoptosis inducer; immunosuppressive agent |
3-(2,6-dichloro-3,5-dimethoxyphenyl)-1-(6-(4-(4-ethylpiperazin-1-yl)-phenylamino)pyrimidin-4-yl)-1-methylurea | BGJ-398 : A member of the class of phenylureas that is urea in which a hydrogen attached to one of the nitrogens is replaced by a 2,6-dichloro-3,5-dimethoxyphenyl group, while the hydrogens attached to the other nitrogen are replaced by a methyl group and a 6-{[4-(4-ethylpiperazin-1-yl)phenyl]amino}pyrimidin-4-yl group. It is a potent and selective fibroblast growth factor receptor inhibitor. infigratinib: structure in first source | aminopyrimidine; dichlorobenzene; N-alkylpiperazine; N-arylpiperazine; phenylureas | antineoplastic agent; fibroblast growth factor receptor antagonist |
cep-32496 | agerafenib: inhibitor of RAF family kinases; structure in first source | ||
pf-5274857 | 1-(4-(5'-chloro-3,5-dimethyl-2,4'-bipyridin-2'-yl)piperazin-1-yl)-3-(methylsulfonyl)propan-1-one: a potent and selective Smoothened antagonist that penetrates the blood-brain barrier; structure in first source |