Tag: M.W=450-500

Zhuang, Chunlin published the artcileRapid Identification of Keap1-Nrf2 Small-Molecule Inhibitors through Structure-Based Virtual Screening and Hit-Based Substructure Search, Recommanded Product: 2-((4-(4-Bromophenylsulfonamido)-1-hydroxynaphthalen-2-yl)thio)acetic acid, the publication is Journal of Medicinal Chemistry (2014), 57(3), 1121-1126, database is CAplus and MEDLINE.

In this study, rapid structure-based virtual screening and hit-based substructure search were utilized to identify small mols. that disrupt the interaction of Keap1-Nrf2. Special emphasis was placed toward maximizing the exploration of chem. diversity of the initial hits while economically establishing informative structure-activity relationship (SAR) of novel scaffolds. Our most potent noncovalent inhibitor exhibits three times improved cellular activation in Nrf2 activation than the most active noncovalent Keap1 inhibitor known to date.

Journal of Medicinal Chemistry published new progress about 518303-20-3. 518303-20-3 belongs to alcohols-buliding-blocks, auxiliary class Apoptosis,Bcl-2, name is 2-((4-(4-Bromophenylsulfonamido)-1-hydroxynaphthalen-2-yl)thio)acetic acid, and the molecular formula is C7H13NO2, Recommanded Product: 2-((4-(4-Bromophenylsulfonamido)-1-hydroxynaphthalen-2-yl)thio)acetic acid.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Potschka, Martin published the artcileThe two coiled coils in the isolated rod domain of the intermediate filament protein desmin are staggered. A hydrodynamic analysis of tetramers and dimers, Related Products of alcohols-buliding-blocks, the publication is European Journal of Biochemistry (1990), 190(3), 503-8, database is CAplus and MEDLINE.

Desmin protofilaments and the proteolytically derived α-helical rod domain have been characterized by high-resolution gel permeation chromatog. (GPC) using columns calibrated for the determination of viscosity radii. Addnl. characterization by chem. crosslinking and the determination of sedimentation values allowed the calculation of the mol. dimensions of the mol. species isolated. In dilute buffers GPC separated desmin rod preparations into 2 complexes: a dimer species (single coiled coil) with a length of 50 nm and a tetramer species (2 coiled coils) with a length of 65 nm. Thus the 2 coiled coils in the tetramer are staggered by ∼15 nm. The hydrodynamically derived lengths of the rod dimer and tetramer are supported by electron microscopy after metal shadowing. The hydrodynamic properties of desmin protofilaments follow that of the rod tetramer. The present results explain the inhomogeneity of mols. encountered in previous electron microscopical analyses.

European Journal of Biochemistry published new progress about 70539-42-3. 70539-42-3 belongs to alcohols-buliding-blocks, auxiliary class pyrrolidine,Ester,Amide,Inhibitor,Inhibitor, name is Bis(2,5-dioxopyrrolidin-1-yl) O,O’-ethane-1,2-diyl disuccinate, and the molecular formula is C18H20N2O12, Related Products of alcohols-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Yu, Marcella published the artcileReversible pH Lability of Cross-linked Vault Nanocapsules, HPLC of Formula: 70539-42-3, the publication is Nano Letters (2008), 8(10), 3510-3515, database is CAplus and MEDLINE.

Vaults are ubiquitous, self-assembled protein nanocapsules with dimension in the sub-100 nm range that are conserved across diverse phyla from worms to humans. Their normal presence in humans at a copy number of over 10 000/cell makes them attractive as potential drug delivery vehicles. Toward this goal, bifunctional amine-reactive reagents are shown to be useful for the reversible crosslinking of recombinant vaults such that they may be closed and opened in a controllable manner.

Nano Letters published new progress about 70539-42-3. 70539-42-3 belongs to alcohols-buliding-blocks, auxiliary class pyrrolidine,Ester,Amide,Inhibitor,Inhibitor, name is Bis(2,5-dioxopyrrolidin-1-yl) O,O’-ethane-1,2-diyl disuccinate, and the molecular formula is C26H41N5O7S, HPLC of Formula: 70539-42-3.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Ravnik, Zina published the artcileComputational studies on bacterial secondary metabolites against breast cancer, Category: alcohols-buliding-blocks, the publication is Journal of Biomolecular Structure and Dynamics (2021), 39(18), 7056-7064, database is CAplus and MEDLINE.

Microbes exist in the human body provide more benefits by modulating metabolic processes, immunity, and signal transduction. However, microbial dysbiosis with harmful bacterial species can cause chronic inflammation and cancers. Hence human probiotics were recently paid more attention to immune responses, therapy, and diagnosis. Breast cancer is the second leading cancer worldwide and causes more death in women. The role of breast microbiome secondary metabolites in breast cancer is poorly studied. Research shows that breast has a specific microbiome inhabited with particular bacterial species. More significantly probiotics produced from breast microbiomes may act as a potential biomarker for breast cancer diagnosis. Hence this computational research aimed at the effect of chosen metabolites on breast cancer cell receptor G-protein-coupled bile acid receptor, Gpbar1 (TGR5). The current research suggested that cadaverine, succinate, p-cresol, and its derivatives could be used as a mol. marker in the diagnosis of breast cancer.

Journal of Biomolecular Structure and Dynamics published new progress about 70539-42-3. 70539-42-3 belongs to alcohols-buliding-blocks, auxiliary class pyrrolidine,Ester,Amide,Inhibitor,Inhibitor, name is Bis(2,5-dioxopyrrolidin-1-yl) O,O’-ethane-1,2-diyl disuccinate, and the molecular formula is C18H20N2O12, Category: alcohols-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

van Laarhoven, Twan published the artcileGaussian interaction profile kernels for predicting drug-target interaction, Name: 2-Amino-2-(hydroxymethyl)propane-1,3-diol (Z)-7-((1R,2R,3R,5S)-3,5-dihydroxy-2-((S,E)-3-hydroxy-3-methyloct-1-en-1-yl)cyclopentyl)hept-5-enoic acid, the publication is Bioinformatics (2011), 27(21), 3036-3043, database is CAplus and MEDLINE.

The in silico prediction of potential interactions between drugs and target proteins is of core importance for the identification of new drugs or novel targets for existing drugs. However, only a tiny portion of all drug-target pairs in current datasets are exptl. validated interactions. This motivates the need for developing computational methods that predict true interaction pairs with high accuracy. We show that a simple machine learning method that uses the drug-target network as the only source of information is capable of predicting true interaction pairs with high accuracy. Specifically, we introduce interaction profiles of drugs (and of targets) in a network, which are binary vectors specifying the presence or absence of interaction with every target (drug) in that network. We define a kernel on these profiles, called the Gaussian Interaction Profile (GIP) kernel, and use a simple classifier, (kernel) Regularized Least Squares (RLS), for prediction drug-target interactions. We test comparatively the effectiveness of RLS with the GIP kernel on 4 drug-target interaction networks used in previous studies. The proposed algorithm achieves area under the precision-recall curve (AUPR) up to 92.7, significantly improving over results of state-of-the-art methods. Moreover, we show that using also kernels based on chem. and genomic information further increases accuracy, with a neat improvement on small datasets. These results substantiate the relevance of the network topol. (in the form of interaction profiles) as source of information for predicting drug-target interactions.

Bioinformatics published new progress about 58551-69-2. 58551-69-2 belongs to alcohols-buliding-blocks, auxiliary class Chiral,Alkenyl,Amine,Aliphatic cyclic hydrocarbon,Ester,Alcohol,Inhibitor,, name is 2-Amino-2-(hydroxymethyl)propane-1,3-diol (Z)-7-((1R,2R,3R,5S)-3,5-dihydroxy-2-((S,E)-3-hydroxy-3-methyloct-1-en-1-yl)cyclopentyl)hept-5-enoic acid, and the molecular formula is C17H16O2, Name: 2-Amino-2-(hydroxymethyl)propane-1,3-diol (Z)-7-((1R,2R,3R,5S)-3,5-dihydroxy-2-((S,E)-3-hydroxy-3-methyloct-1-en-1-yl)cyclopentyl)hept-5-enoic acid.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Govindappagari, Shravya published the artcileMild Thrombocytopenia and Postpartum Hemorrhage in Nulliparous Women With Term, Singleton, Vertex Deliveries, Computed Properties of 58551-69-2, the publication is Obstetrics & Gynecology (Philadelphia, PA, United States) (2020), 135(6), 1338-1344, database is CAplus and MEDLINE.

Objective: To assess whether mild thrombocytopenia (platelet count 100-149 k/μL) is associated with an increased risk of postpartum hemorrhage. Methods: Nulliparous women with term, singleton, vertex pregnancies undergoing labor at our institution between August 2016 and Sept. 2017 were included. The primary exposure was mild thrombocytopenia, defined as platelet count 100-149 k/μL, and the comparator was normal platelet count (150 k/μL or greater). Those with severe thrombocytopenia (platelet count less than 100 k/μL) were excluded from anal. The primary outcome was postpartum hemorrhage, determined by International Classification of Diseases, Tenth Revision codes and the hospital discharge problem list. Secondary outcomes included use of uterotonic agents (methylergonovine maleate or carboprost tromethamine), total blood loss 1,000 mL or greater, and blood transfusion. Data were analyzed by t test, χ or Fisher exact test, and multivariable logistic regression, with significance at α <0.05. Results: We evaluated 2,845 eligible women, of whom 2,579 (90.2%) had normal platelet count 150 k/μL or greater, 266 (9.3%) had platelet count 100-149 k/μL (mild thrombocytopenia), and 13 (0.5%) had platelet count less than 100 k/μL (severe thrombocytopenia). Compared with women with normal platelet count, those with mild thrombocytopenia had a higher rate of postpartum hemorrhage (16.9% vs 8.5%, P<.001) and were more likely to have total blood loss 1,000 mL or greater (4.5% vs 1.7%, P=.002) and receive methylergonovine maleate (10.5% vs 5.9%, P=.003) or carboprost tromethamine (6.0% vs 1.6%, P<.001) or both (3.8% vs 1.0%, P<.001), but rates of blood transfusion were no different (1.9% vs 1.5%, P=.59). The association between mild thrombocytopenia and postpartum hemorrhage persisted after multivariable adjustment for potential confounders (adjusted odds ratio 2.2, 95% CI 1.5-3.2, P<.001). Conclusion: Among nulliparous women with term, singleton, vertex pregnancies undergoing labor, those with mild thrombocytopenia (platelet count 100-149 k/μL) had a twofold greater likelihood of postpartum hemorrhage compared with those with normal platelet count.

Obstetrics & Gynecology (Philadelphia, PA, United States) published new progress about 58551-69-2. 58551-69-2 belongs to alcohols-buliding-blocks, auxiliary class Chiral,Alkenyl,Amine,Aliphatic cyclic hydrocarbon,Ester,Alcohol,Inhibitor,, name is 2-Amino-2-(hydroxymethyl)propane-1,3-diol (Z)-7-((1R,2R,3R,5S)-3,5-dihydroxy-2-((S,E)-3-hydroxy-3-methyloct-1-en-1-yl)cyclopentyl)hept-5-enoic acid, and the molecular formula is C25H47NO8, Computed Properties of 58551-69-2.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Flotenmeyer, M. published the artcileHydrophobic and hydrophilic radio-iodination, crosslinking, and differential extraction of cell surface proteins in Paramecium tetraurelia cells, HPLC of Formula: 70539-42-3, the publication is Journal of Membrane Biology (1999), 172(1), 77-88, database is CAplus and MEDLINE.

We combined widely different biochem. methods to analyze proteins of the cell surface of P. tetraurelia since so far one can isolate only a subfraction of cell membrane vesicles enriched in the GPI-anchored surface antigens (immobilization or i-AGs). We also found that i-AGs may undergo partial degradation by endogenous proteases. Genuine intrinsic membrane proteins were recognized particularly with lipophilic 5-[¹²⁵I]-iodonaphthalene-1-azide (INA) labeling which reportedly “sees” integral proteins and cytoplasmic cell membrane-associated proteins. With INA (+DTT), bands of ≤55 kDa were similar as with hydrophilic iodogen (+DTT), but instead of large size bands including i-AGs, a group of 122, 104 and 94 kDa appeared. Several bands of the non i-AG type are compatible with integral (possibly oligomeric) or associated proteins of the cell membrane of established mol. identity, as we discuss. In summary, we can discriminate between i-AGs and some functionally important minor cell membrane components. Our methodical approach might be relevant also for an anal. of some related protozoan parasites.

Journal of Membrane Biology published new progress about 70539-42-3. 70539-42-3 belongs to alcohols-buliding-blocks, auxiliary class pyrrolidine,Ester,Amide,Inhibitor,Inhibitor, name is Bis(2,5-dioxopyrrolidin-1-yl) O,O’-ethane-1,2-diyl disuccinate, and the molecular formula is C18H20N2O12, HPLC of Formula: 70539-42-3.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Marinov, B published the artcile[Some possibilities for application of “Pfizer” medicines–Prostin 15m, Prostin E2, Prepidil gel, Dostinex, Synarel–in the obstetrician practice]., Recommanded Product: 2-Amino-2-(hydroxymethyl)propane-1,3-diol (Z)-7-((1R,2R,3R,5S)-3,5-dihydroxy-2-((S,E)-3-hydroxy-3-methyloct-1-en-1-yl)cyclopentyl)hept-5-enoic acid, the publication is Akusherstvo i ginekologiia (2007), 57-60, database is MEDLINE.

The authors make a clinical and pharmacological overview of the possibilities of application in the obstetrician practice of part of the medicines of the company Pfiser. Some of these medicines have no analogue in Bulgaria–i.e. Prostin 15M. The authors outline the advantages of the Pfiser medicines in comparison with other medicines with similar action.

Akusherstvo i ginekologiia published new progress about 58551-69-2. 58551-69-2 belongs to alcohols-buliding-blocks, auxiliary class Chiral,Alkenyl,Amine,Aliphatic cyclic hydrocarbon,Ester,Alcohol,Inhibitor,, name is 2-Amino-2-(hydroxymethyl)propane-1,3-diol (Z)-7-((1R,2R,3R,5S)-3,5-dihydroxy-2-((S,E)-3-hydroxy-3-methyloct-1-en-1-yl)cyclopentyl)hept-5-enoic acid, and the molecular formula is C25H47NO8, Recommanded Product: 2-Amino-2-(hydroxymethyl)propane-1,3-diol (Z)-7-((1R,2R,3R,5S)-3,5-dihydroxy-2-((S,E)-3-hydroxy-3-methyloct-1-en-1-yl)cyclopentyl)hept-5-enoic acid.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Bladon, Christine M. published the artcilePreparation and use of biotinylated ligands for LHRH receptor purification, Related Products of alcohols-buliding-blocks, the publication is Tetrahedron Letters (1989), 30(11), 1401-4, database is CAplus.

The synthesis of biotinylated analogs of LH-RH is described in which the peptides simultaneously combine biotin and either a photolabile or an amino substituent. In rat anterior pituitary membranes, the conjugate [biotinyl-aminoethylglycyl-D-Lys⁶, des Gly¹⁰]-LH-RH ethylamide showed approx. 50% specific binding and could be covalently crosslinked to the LH-RH receptor site with ethylene glycol bis(succinimidylsuccinate).

Tetrahedron Letters published new progress about 70539-42-3. 70539-42-3 belongs to alcohols-buliding-blocks, auxiliary class pyrrolidine,Ester,Amide,Inhibitor,Inhibitor, name is Bis(2,5-dioxopyrrolidin-1-yl) O,O’-ethane-1,2-diyl disuccinate, and the molecular formula is C18H20N2O12, Related Products of alcohols-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Ogier, Sally Ann published the artcileNovel ligands for the affinity labeling of luteinizing hormone releasing hormone receptors, Safety of Bis(2,5-dioxopyrrolidin-1-yl) O,O’-ethane-1,2-diyl disuccinate, the publication is Biochemical Journal (1989), 258(3), 881-8, database is CAplus and MEDLINE.

A number of novel LH-RH analogs incorporating biotin together with potential covalent attachment sites were synthesized. Those based on the des-Gly¹⁰-[D-Lys⁶]-LH-RH ethylamide peptide backbone resulted in the most useful characteristics of binding to the LH-RH receptor in rat anterior pituitary gland membranes. Of these, des-Gly¹⁰-[biotinyl-aminoethylglycyl-D-Lys⁶]-LHRH ethylamide (XBAL) gave the best specific:nonspecific binding ratio, with 44% of total binding being specific with a K_d of 131 pM as determined by Scatchard anal. Two methods were used to covalently crosslink these analogs with the LH-RH receptor; photoaffinity labeling and the use of homobifunctional N-hydroxysuccinimide ester crosslinkers. The photoaffinity analogs gave poor specific:nonspecific binding ratios. Of the chem. crosslinkers tested, ethylene glycolbis(succinimidylsuccinate) (EGS) was the most efficient at covalently linking the ¹²⁵I-XBAL bound to the LH-RH receptor site. At an EGS concentration of 5 mM, 23% of the specific binding of ¹²⁵I-XBAL was covalently crosslinked.

Biochemical Journal published new progress about 70539-42-3. 70539-42-3 belongs to alcohols-buliding-blocks, auxiliary class pyrrolidine,Ester,Amide,Inhibitor,Inhibitor, name is Bis(2,5-dioxopyrrolidin-1-yl) O,O’-ethane-1,2-diyl disuccinate, and the molecular formula is C18H20N2O12, Safety of Bis(2,5-dioxopyrrolidin-1-yl) O,O’-ethane-1,2-diyl disuccinate.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts