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building block amino acids  (Chem Impex International)


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    Structured Review

    Chem Impex International building block amino acids
    Building Block Amino Acids, supplied by Chem Impex International, used in various techniques. Bioz Stars score: 95/100, based on 10 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/product/01951/DL-Histidine/pmc09028392-59-2-18
    Average 95 stars, based on 10 article reviews
    building block amino acids - by Bioz Stars, 2026-09
    95/100 stars

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    Related Articles

    Blocking Assay:

    Article Title: Oleyl Conjugated Histidine-Arginine Cell-Penetrating Peptides as Promising Agents for siRNA Delivery
    Article Snippet: .. The protected building block amino acids (arginine and histidine) and arginine preloaded on 2-chlorotrityl resin were purchased from Chem Impex Inc. (Bensenville, IL, USA). .. 2-(1H-benzotriazole-1-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate (HBTU) was purchased from Acrotein ChemBio Inc. (Hoover, AL, USA).

    other:

    Article Title: Isotope pool dilution reveals rapid turnover of small quaternary ammonium compounds
    Article Snippet: Studies of how nitrogen (N) becomes available have tended to focus on depolymerisation of proteins and subsequent uptake of amino acids, yet amino acids and their polymers are not the only organic N compounds in soil.. For example, concentrations of small quaternary ammonium compounds in the extracellular fraction of soil are often comparable to those of amino acids.. We know that there is rapid turnover of amino acids in the extracellular fraction of soil, but there are no comparable data for small quaternary ammonium compounds.

    Article Title: Automated Flow Synthesis of Artificial Heme Enzymes for Enantiodivergent Biocatalysis
    Article Snippet: Fmoc-N-p-methyl-L-histidin (or Fmoc-His(3-Me)-OH) was purchased from ChemImpex (99.77%, CAS 252049-16-4). (2S)-N-Fmoc-3-(1-benzofuran-3-yl)propanoic acid (or Fmoc-OTrp-OH) was purchased from WuXi LabNetwork (95%, CAS 1702138-76-8).

    Recombinant:

    Article Title: Site-Specific Histidine Aza-Michael Addition in Proteins Enabled by a Ferritin-Based Metalloenzyme
    Article Snippet: .. Chemicals, peptides, and recombinant proteins 2-(5-Bromothienyl)-L-alanine (BrThA, 2) Chem-Impex (Wood Dale, IL, United States) Cat#15736 2-Chloro-2,4,6-cycloheptatrien-1-one (6) Sigma-Aldrich (Burlington, MA, United States) Cat#669571 3-Methyl-histidine (MeH, 3) Chem-Impex (Wood Dale, IL, United States) Cat#11339 3-Methylene-2-norbornanone (8) Sigma-Aldrich (Burlington, MA, United States) Cat#M46055 4-Thiazolyl-L-alanine (ThzA, 1) Chem-Impex (Wood Dale, IL, United States) Cat#07376 Apoferritin from equine spleen Sigma-Aldrich (Burlington, MA, United States) Cat#A3660 Bovine serum albumin (BSA) Sigma-Aldrich (Burlington, MA, United States) Cat#A7906 Diethyl benzylidenemalonate (DEBM, 5) Sigma-Aldrich (Burlington, MA, United States) Cat#13471 Diethyl ethylidenemalonate (DEEM, 4) Sigma-Aldrich (Burlington, MA, United States) Cat#D94801 Divinyl sulfone (10) Sigma-Aldrich (Burlington, MA, United States) Cat#V3700 [D-Ala6, N-Me-Leu7]-LH-RH Sigma-Aldrich (Burlington, MA, United States) Cat#L6884 Ethyl vinyl sulfone (9) Sigma-Aldrich (Burlington, MA, United States) Cat#282839 Ferritin from equine spleen Sigma-Aldrich (Burlington, MA, United States) Cat#F4503 Glu-C, Sequencing Grade Promega Corporation (Madison, WI, United States) Cat#V1651 Insulin, Human Recombinant Sigma-Aldrich (Burlington, MA, United States) Cat#91077C KOD Hot Start Polymerase Merck KGaA (Darmstadt, Germany) Cat#71086 Lysozyme (from chicken egg white) Sigma-Aldrich (Burlington, MA, United States) Cat#L7651 N-hydroxyethyl acylamide (7) Sigma-Aldrich (Burlington, MA, United States) Cat#697931 Phenyl vinyl sulfone (11) Sigma-Aldrich (Burlington, MA, United States) Cat#241717 Recombinant human UBE2V2 SignalChem (Richmond, BC, Canada) Cat#U239-30H Recombinant human UBE2N SignalChem (Richmond, BC, Canada) Cat#U231-380H (All restriction enzymes used) New England Biolabs (Ipswich, MA, USA) N/A ..

    Sequencing:

    Article Title: Site-Specific Histidine Aza-Michael Addition in Proteins Enabled by a Ferritin-Based Metalloenzyme
    Article Snippet: .. Chemicals, peptides, and recombinant proteins 2-(5-Bromothienyl)-L-alanine (BrThA, 2) Chem-Impex (Wood Dale, IL, United States) Cat#15736 2-Chloro-2,4,6-cycloheptatrien-1-one (6) Sigma-Aldrich (Burlington, MA, United States) Cat#669571 3-Methyl-histidine (MeH, 3) Chem-Impex (Wood Dale, IL, United States) Cat#11339 3-Methylene-2-norbornanone (8) Sigma-Aldrich (Burlington, MA, United States) Cat#M46055 4-Thiazolyl-L-alanine (ThzA, 1) Chem-Impex (Wood Dale, IL, United States) Cat#07376 Apoferritin from equine spleen Sigma-Aldrich (Burlington, MA, United States) Cat#A3660 Bovine serum albumin (BSA) Sigma-Aldrich (Burlington, MA, United States) Cat#A7906 Diethyl benzylidenemalonate (DEBM, 5) Sigma-Aldrich (Burlington, MA, United States) Cat#13471 Diethyl ethylidenemalonate (DEEM, 4) Sigma-Aldrich (Burlington, MA, United States) Cat#D94801 Divinyl sulfone (10) Sigma-Aldrich (Burlington, MA, United States) Cat#V3700 [D-Ala6, N-Me-Leu7]-LH-RH Sigma-Aldrich (Burlington, MA, United States) Cat#L6884 Ethyl vinyl sulfone (9) Sigma-Aldrich (Burlington, MA, United States) Cat#282839 Ferritin from equine spleen Sigma-Aldrich (Burlington, MA, United States) Cat#F4503 Glu-C, Sequencing Grade Promega Corporation (Madison, WI, United States) Cat#V1651 Insulin, Human Recombinant Sigma-Aldrich (Burlington, MA, United States) Cat#91077C KOD Hot Start Polymerase Merck KGaA (Darmstadt, Germany) Cat#71086 Lysozyme (from chicken egg white) Sigma-Aldrich (Burlington, MA, United States) Cat#L7651 N-hydroxyethyl acylamide (7) Sigma-Aldrich (Burlington, MA, United States) Cat#697931 Phenyl vinyl sulfone (11) Sigma-Aldrich (Burlington, MA, United States) Cat#241717 Recombinant human UBE2V2 SignalChem (Richmond, BC, Canada) Cat#U239-30H Recombinant human UBE2N SignalChem (Richmond, BC, Canada) Cat#U231-380H (All restriction enzymes used) New England Biolabs (Ipswich, MA, USA) N/A ..

    Transformation Assay:

    Article Title: In vivo cross-linking supports a head-to-tail mechanism for regulation of the plant plasma membrane P-type H + -ATPase
    Article Snippet: .. Yeast transformed with different mutant AHA2s containing the amber stop codon and the nonsense suppressor tRNA/tRNA synthetase were grown in selective medium (YNB + 100 mg/liter histidine + 2% galactose) for 2 days and then transferred to YPD medium (1% yeast extract, 2% peptone, 2% d -glucose) supplemented with 2 m m BPA (Chemimpex) and grown overnight. ..

    Mutagenesis:

    Article Title: In vivo cross-linking supports a head-to-tail mechanism for regulation of the plant plasma membrane P-type H + -ATPase
    Article Snippet: .. Yeast transformed with different mutant AHA2s containing the amber stop codon and the nonsense suppressor tRNA/tRNA synthetase were grown in selective medium (YNB + 100 mg/liter histidine + 2% galactose) for 2 days and then transferred to YPD medium (1% yeast extract, 2% peptone, 2% d -glucose) supplemented with 2 m m BPA (Chemimpex) and grown overnight. ..



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    BPA was incorporated at different positions of AHA2 and cross-linked in vivo with UV irradiation. A, whole-cell extract from yeast cells expressing His6-HA–tagged AHA2 amber mutants and the tRNA synthetase/tRNASup in the absence (−) or presence of 2 mm BPA(+) were analyzed by Western blotting with anti-HA antibody. B, drop test for the growth of yeast strains expressing BPA–AHA2s on plates containing either 2% galactose or 2% glucose + 2 mm BPA at pH ∼6.5. Growth was recorded after 4 days. C, cells expressing BPA-containing AHA2 were kept in the dark (−) or exposed to UV 365 nm (+), and AHA2 was purified from cell extracts using nickel-Sepharose resin, followed by Western blotting with anti-HA antibody. The cross-linked species are observed as higher molecular bands in the upper part of the gel above the monomeric 110-kDa ATPase polypeptide. D, Strep-HA–tagged AHA2s containing BPA was purified with StrepTactin-Sepharose (GE Healthcare) resin and analyzed by NuPAGE Tris acetate gel. On this gel, the cross-link bands are indicated as a dimer and a trimer of AHA2.

    Journal: The Journal of Biological Chemistry

    Article Title: In vivo cross-linking supports a head-to-tail mechanism for regulation of the plant plasma membrane P-type H + -ATPase

    doi: 10.1074/jbc.RA118.003528

    Figure Lengend Snippet: BPA was incorporated at different positions of AHA2 and cross-linked in vivo with UV irradiation. A, whole-cell extract from yeast cells expressing His6-HA–tagged AHA2 amber mutants and the tRNA synthetase/tRNASup in the absence (−) or presence of 2 mm BPA(+) were analyzed by Western blotting with anti-HA antibody. B, drop test for the growth of yeast strains expressing BPA–AHA2s on plates containing either 2% galactose or 2% glucose + 2 mm BPA at pH ∼6.5. Growth was recorded after 4 days. C, cells expressing BPA-containing AHA2 were kept in the dark (−) or exposed to UV 365 nm (+), and AHA2 was purified from cell extracts using nickel-Sepharose resin, followed by Western blotting with anti-HA antibody. The cross-linked species are observed as higher molecular bands in the upper part of the gel above the monomeric 110-kDa ATPase polypeptide. D, Strep-HA–tagged AHA2s containing BPA was purified with StrepTactin-Sepharose (GE Healthcare) resin and analyzed by NuPAGE Tris acetate gel. On this gel, the cross-link bands are indicated as a dimer and a trimer of AHA2.

    Article Snippet: Yeast transformed with different mutant AHA2s containing the amber stop codon and the nonsense suppressor tRNA/tRNA synthetase were grown in selective medium (YNB + 100 mg/liter histidine + 2% galactose) for 2 days and then transferred to YPD medium (1% yeast extract, 2% peptone, 2% d -glucose) supplemented with 2 m m BPA (Chemimpex) and grown overnight.

    Techniques: In Vivo, Irradiation, Expressing, Western Blot, Purification