7-azidoheptanoic acid succinimidyl ester | 1236969-94-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯烷类
• 英文名称: 7-azidoheptanoic acid succinimidyl ester
• 英文别名: 2,5-Dioxopyrrolidin-1-yl 7-azidoheptanoate；(2,5-dioxopyrrolidin-1-yl) 7-azidoheptanoate
• CAS: 1236969-94-0
• 化学式: C₁₁H₁₆N₄O₄
• 分子量: 268.272
• InChiKey: GYRBFFAPUWZRMU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  19
• 可旋转键数：
  9
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.73
• 拓扑面积：
  78
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  7-azidoheptanoic acid succinimidyl ester 在 盐酸 、 N,N-二异丙基乙胺 、 lithium hydroxide 作用下， 以 四氢呋喃 、 1,4-二氧六环 、 甲醇 、 二氯甲烷 、 水 为溶剂， 反应 8.0h， 生成 N^ε-(7-azidoheptanoyl)-L-lysine hydrochloride
  参考文献：
  名称：

  A Click Chemistry Approach Reveals the Chromatin-Dependent Histone H3K36 Deacylase Nature of SIRT7

  摘要：

  Using an engineered pyrrolysyl-tRNA synthetase mutant together with tRNA(CUA)(Pyl), we have genetically encoded N-epsilon(7-azidoheptanoyl)-L-lysine (AzHeK) by amber codon in Escherichia coli for recombinant expression of a number of AzHeK-containing histone H3 proteins. We assembled in vitro aryl-nucleosomes from these recombinant acyl-H3 histones. All these acyl-nucleosomes contained an azide functionality that allowed quick click labeling with a strained alkyne dye for in-gel fluorescence analysis. Using these acyl-nucleosomes as substrates and click labeling as a detection method, we systematically investigated chromatin deacylation activities of SIRT7, a class III NAD(+)-dependent histone deacylase with roles in aging and cancer biology. Besides confirming the previously reported histone H3K18 deacylation activity, our results revealed that SIRT7 has an astonishingly high activity to catalyze deacylation of H3K36 and is also catalytically active to deacylate H3K37. We further demonstrated that this H3K36 deacylation activity is nucleosome dependent and can be significantly enhanced when appending the acyl-nucleosome substrate with a short double-stranded DNA that mimics the bridging DNA between nucleosomes in native chromatin. By overexpressing SIRT7 in human cells, we verified that SIRT7 natively removes acetylation from histone H3K36. Moreover, SIRT7-deficient cells exhibited H3K36 hyperacetylation in whole cell extracts, at rDNA sequences in nucleoli, and at select SIRT7 target loci, demonstrating the physiologic importance of SIRT7 in determining endogenous H3K36 acetylation levels. H3K36 acetylation has been detected at active gene promoters, but little is understood about its regulation and functions. Our findings establish H3K36 as a physiologic substrate of SIRT7 and implicate this modification in potential SIRT7 pathways in heterochromatin silencing and genomic stability.

  DOI：

  10.1021/jacs.8b12083
• 作为产物：
  描述：

  7-溴庚酸 在 sodium azide 、 N,N'-二环己基碳二亚胺 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 6.0h， 生成 7-azidoheptanoic acid succinimidyl ester
  参考文献：
  名称：

  A Click Chemistry Approach Reveals the Chromatin-Dependent Histone H3K36 Deacylase Nature of SIRT7

  摘要：

  Using an engineered pyrrolysyl-tRNA synthetase mutant together with tRNA(CUA)(Pyl), we have genetically encoded N-epsilon(7-azidoheptanoyl)-L-lysine (AzHeK) by amber codon in Escherichia coli for recombinant expression of a number of AzHeK-containing histone H3 proteins. We assembled in vitro aryl-nucleosomes from these recombinant acyl-H3 histones. All these acyl-nucleosomes contained an azide functionality that allowed quick click labeling with a strained alkyne dye for in-gel fluorescence analysis. Using these acyl-nucleosomes as substrates and click labeling as a detection method, we systematically investigated chromatin deacylation activities of SIRT7, a class III NAD(+)-dependent histone deacylase with roles in aging and cancer biology. Besides confirming the previously reported histone H3K18 deacylation activity, our results revealed that SIRT7 has an astonishingly high activity to catalyze deacylation of H3K36 and is also catalytically active to deacylate H3K37. We further demonstrated that this H3K36 deacylation activity is nucleosome dependent and can be significantly enhanced when appending the acyl-nucleosome substrate with a short double-stranded DNA that mimics the bridging DNA between nucleosomes in native chromatin. By overexpressing SIRT7 in human cells, we verified that SIRT7 natively removes acetylation from histone H3K36. Moreover, SIRT7-deficient cells exhibited H3K36 hyperacetylation in whole cell extracts, at rDNA sequences in nucleoli, and at select SIRT7 target loci, demonstrating the physiologic importance of SIRT7 in determining endogenous H3K36 acetylation levels. H3K36 acetylation has been detected at active gene promoters, but little is understood about its regulation and functions. Our findings establish H3K36 as a physiologic substrate of SIRT7 and implicate this modification in potential SIRT7 pathways in heterochromatin silencing and genomic stability.

  DOI：

  10.1021/jacs.8b12083

文献信息

• [EN] NEW TECHNOLOGY TO CONJUGATE THE TACCALONOLIDE MICROTUBULE STABILIZERS WITH LINKERS/PAYLOADS<br/>[FR] NOUVELLE TECHNOLOGIE POUR CONJUGUER LES STABILISATEURS TACCALONOLIDES DE MICROTUBULES AVEC DES LIEURS/CHARGES UTILES
  申请人：DU LIN

  公开号：WO2020185610A1

  公开（公告）日：2020-09-17

  The present disclosure is concerned with taccalonolide analogs and conjugated taccalonolide analogs useful as cellular probes and in the treatment of, for example, hyperproliferative disorders such as cardiovascular diseases and cancer. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.

  本公开涉及可用作细胞探针和用于治疗高增殖性疾病，如心血管疾病和癌症的塔卡龙内酯类似物和共轭塔卡龙内酯类似物。本摘要旨在作为在特定领域搜索的扫描工具，并不意味着对本发明的限制。
• A Combined 6π-Azaelectrocyclization/Staudinger Approach to Protein and Cell Engineering: Noninvasive Tumor Targeting by<i>N</i>-Glycan-Engineered Lymphocytes
  作者：Katsunori Tanaka、Kaori Minami、Tsuyoshi Tahara、Eric R. O. Siwu、Koichi Koyama、Satoshi Nozaki、Hirotaka Onoe、Yasuyoshi Watanabe、Koichi Fukase

  DOI：10.1080/07328303.2010.483042

  日期：2010.4

  [image omitted]Graphical Abstract Combined azaelectrocyclization and Staudinger ligation allowed proteins and living cells to be modified by small molecules (i.e., biotin or N-glycans). Chemically engineered lymphocytes modified by complex-type N-glycan targeted DLD-1 tissues implanted in nude mice at the whole-body level.