Methyl 3-bromo-1H-indole-2-carboxylate - CAS 220664-31-3
Catalog number: 220664-31-3
Category: Main Product
Molecular Formula:
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METHYL 3-BROMO-1H-INDOLE-2-CARBOXYLATE; 3-Bromo-1H-indole-2-carboxylic acid methyl ester
Boiling Point:
378.787ºC at 760 mmHg
Melting Point:
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1.Genome-wide identification and expression analysis of the metacaspase gene family in Hevea brasiliensis.
Liu H1, Deng Z2, Chen J3, Wang S4, Hao L5, Li D6. Plant Physiol Biochem. 2016 Apr 7;105:90-101. doi: 10.1016/j.plaphy.2016.04.011. [Epub ahead of print]
Metacaspases, a family of cysteine proteases, have been suggested to play important roles in programmed cell death (PCD) during plant development and stress responses. To date, no systematic characterization of this gene family has been reported in rubber tree (Hevea brasiliensis). In the present study, nine metacaspase genes, designated as HbMC1 to HbMC9, were identified from whole-genome sequence of rubber tree. Multiple sequence alignment and phylogenetic analyses suggested that these genes were divided into two types: type I (HbMC1-HBMC7) and type II (HbMC8 and HbMC9). Gene structure analysis demonstrated that type I and type II HbMCs separately contained four and two introns, indicating the conserved exon-intron organization of HbMCs. Quantitative real-time PCR analysis revealed that HbMCs showed distinct expression patterns in different tissues, suggesting the functional diversity of HbMCs in various tissues during development. Most of the HbMCs were regulated by drought, cold, and salt stress, implying their possible functions in regulating abiotic stress-induced cell death.
2.Horizontal transfer of DNA methylation patterns into bacterial chromosomes.
Shin JE1, Lin C1, Lim HN2. Nucleic Acids Res. 2016 Apr 15. pii: gkw230. [Epub ahead of print]
Horizontal gene transfer (HGT) is the non-inherited acquisition of novel DNA sequences. HGT is common and important in bacteria because it enables the rapid generation of new phenotypes such as antibiotic resistance. Here we show thatin vivoandin vitroDNA methylation patterns can be horizontally transferred into bacterial chromosomes to program cell phenotypes. The experiments were performed using a synthetic system inEscherichia coliwhere different DNA methylation patterns within thecis-regulatory sequence of theagn43gene turn on or off a fluorescent reporter (CFP). With this system we demonstrated that DNA methylation patterns not only accompany the horizontal transfer of genes into the bacterial cytoplasm but can be transferred into chromosomes by: (i) bacteriophage P1 transduction; and (ii) transformation of extracellular synthetic DNA. We also modified the experimental system by replacing CFP with the SgrS small RNA, which regulates glucose and methyl α-D-glucoside uptake, and showed that horizontally acquired DNA methylation patterns can increase or decrease cell fitness.
3.Ribosome biogenesis factor Tsr3 is the aminocarboxypropyl transferase responsible for 18S rRNA hypermodification in yeast and humans.
Meyer B1, Wurm JP2, Sharma S3, Immer C2, Pogoryelov D4, Kötter P1, Lafontaine DL3, Wöhnert J5, Entian KD6. Nucleic Acids Res. 2016 Apr 15. pii: gkw244. [Epub ahead of print]
The chemically most complex modification in eukaryotic rRNA is the conserved hypermodified nucleotide N1-methyl-N3-aminocarboxypropyl-pseudouridine (m1acp3Ψ) located next to the P-site tRNA on the small subunit 18S rRNA. While S-adenosylmethionine was identified as the source of the aminocarboxypropyl (acp) group more than 40 years ago the enzyme catalyzing the acp transfer remained elusive. Here we identify the cytoplasmic ribosome biogenesis protein Tsr3 as the responsible enzyme in yeast and human cells. In functionally impaired Tsr3-mutants, a reduced level of acp modification directly correlates with increased 20S pre-rRNA accumulation. The crystal structure of archaeal Tsr3 homologs revealed the same fold as in SPOUT-class RNA-methyltransferases but a distinct SAM binding mode. This unique SAM binding mode explains why Tsr3 transfers the acp and not the methyl group of SAM to its substrate. Structurally, Tsr3 therefore represents a novel class of acp transferase enzymes.
4.Prior activation of inositol 1,4,5-trisphosphate receptors suppresses the subsequent induction of long-term potentiation in hippocampal CA1 neurons.
Fujii S1, Yamazaki Y2, Goto J3, Fujiwara H2, Mikoshiba K4. Learn Mem. 2016 Apr 15;23(5):208-20. doi: 10.1101/lm.041053.115. Print 2016 May.
We investigated the role of inositol 1,4,5-trisphosphate receptors (IP3Rs) activated by preconditioning low-frequency afferent stimulation (LFS) in the subsequent induction of long-term potentiation (LTP) in CA1 neurons in hippocampal slices from mature guinea pigs. Induction of LTP in the field excitatory postsynaptic potential or the population spike by the delivery of high-frequency stimulation (HFS, a tetanus of 100 pulses at 100 Hz) to the Schaffer collateral-commissural pathway to CA1 neuron synapses was suppressed when group I metabotropic glutamate receptors (mGluRs) were activated prior to the delivery of HFS. LTP induction was also suppressed when CA1 synapses were preconditioned 60 min before HFS by LFS of 1000 pulses at 1 Hz and this effect was inhibited when the test stimulation delivered at 0.05 Hz was either halted or applied in the presence of an antagonist ofN-methyl-d-aspartate receptors, group I mGluRs, or IP3Rs during a 20-min period from 20 to 40 min after the end of LFS.
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CAS 220664-31-3 Methyl 3-bromo-1H-indole-2-carboxylate

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