DTT
(Synonyms: 二硫苏糖醇) 目录号 : GC35905
Dithiothreitol (DTT, Cleland's reagent), a small-molecule redox reagent, is a standard agent for reducing disulfide bonds between and within biological molecules.
Cas No.:3483-12-3
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >99.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Dithiothreitol (DTT, Cleland's reagent), a small-molecule redox reagent, is a standard agent for reducing disulfide bonds between and within biological molecules.
二硫苏糖醇（DTT，Cleland 试剂）是一种小分子氧化还原试剂，是还原生物分子间和分子内二硫键的标准试剂。
[1] Lukesh JC 3rd, et al. J Am Chem Soc. 2012 Mar 7;134(9):4057-9.
| Cas No. | 3483-12-3 | SDF | |
| 别名 | 二硫苏糖醇 | ||
| Canonical SMILES | O[C@H]([C@@H](O)CS)CS | ||
| 分子式 | C4H10O2S2 | 分子量 | 154.25 |
| 溶解度 | Water: ≥ 200 mg/mL (1296.60 mM); DMSO: 125 mg/mL (810.37 mM) | 储存条件 | Store at 2-8°C,protect from light, stored under nitrogen |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 6.483 mL | 32.4149 mL | 64.8298 mL |
| 5 mM | 1.2966 mL | 6.483 mL | 12.966 mL |
| 10 mM | 0.6483 mL | 3.2415 mL | 6.483 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
Parent Implementation of DTT Following Telehealth Instruction
J Autism Dev Disord 2022 Aug 2;1-7.PMID:35917019DOI:10.1007/s10803-022-05693-x.
Discrete Trial Training (DTT) is a method of intervention for individuals with Autism Spectrum Disorder (ASD). Applications of DTT require prescribed repetitions of instruction. DTT is typically implemented via trained instructors or teachers. However, prior analysis has demonstrated the potential of parent-implemented DTT. Prior research demonstrated that DTT training can be implemented with a high degree of fidelity using a student teacher population. However, to date, no studies have evaluated the use of a DTT telehealth training with parents of children with ASD. The purpose of this study was to evaluate the feasibility of a remote parent training method to allow parents to implement DTT in home settings. To this end, three parent participants of children diagnosed with ASD were trained to implement DTT through a telehealth modality in a nonconcurrent multiple baseline design. Results suggested efficacy of this method at DTT skills acquisition.
Toxicity of Dithiothreitol (DTT) to Drosophila melanogaster
Toxicol Rep 2020 Dec 26;8:124-130.PMID:33425686DOI:10.1016/j.toxrep.2020.12.014.
The thiol-containing compound Dithiothreitol (DTT) has been shown to be toxic to cultured cells by inducing the generation of reactive oxygen species that ultimately cause cell death. However, its effects on multicellular organisms and the environment have not been investigated yet in detail. In this work, we tested the toxicity of DTT to the model insect Drosophila melanogaster. We show that DTT is lethal to D. melanogaster by topical application but not through feeding. DTT treatment triggers the transcription of the canonical apoptosis regulators grim, hid and rpr at low amounts. The amplitude of this induction declines with elevating DTT amounts. By live microscopy, we observe apoptotic cells especially in the gut of DTT treated flies. In parallel, low DTT amounts also activate the expression of the cuticle barrier component gene snsl. This indicates that a physical defence response is launched upon DTT contact. This combined measure is seemingly successful in preventing fly death. The expression of a number of known detoxification genes including cyp6a2, cyp6a8, cyp12d1 and GstD2 is also enhanced through DTT contact. The degree of upregulation of these genes is proportional to the applied DTT amounts. Despite this effort, flies exposed to high amounts of DTT eventually die. Together, D. melanogaster is able to sense DTT toxicity and adjust the defence response successfully at least at low concentrations. This is the first time to analyse the molecular consequences of DTT exposure in a multicellular organism. Our work provides a new model to discuss the physiological response of animals against thiol toxins and to resurvey the effect of redox agents on the environment.
The effects of dithiothreitol (DTT) on fluorescent qPCR dyes
J Forensic Sci 2021 Mar;66(2):700-708.PMID:33284476DOI:10.1111/1556-4029.14637.
DNA extractions of semen samples commonly utilize dithiothreitol (DTT) to reduce and disrupt disulfide bonds. Although traditional extraction techniques remove DTT before downstream analyses, the forensic DNA community has recently explored Y-screening, direct amplification, and direct cell lysis assays that omit purification but employ reducing agents to lyse spermatozoa. This study examined the impact of residual DTT on downstream processes involving fluorescent dyes. Quantification using Investigator® Quantiplex HYres revealed a significant increase in the male DNA yield (p = 0.00056) and a >150,000,000-fold increase in the male:human DNA ratio when DTT remained in extracts versus when it was filtered out using a traditional purification method. When DTT was present with Quantifiler™ Trio, the true mean DNA yield for the large autosomal target significantly increased (p = 0.038) and the average reported DNA yields increased 1.1-fold, >9.5-fold, and 1.3-fold for the small autosomal, large autosomal, and male targets, respectively. DTT-spiked DNA standards from both kits were impacted similarly to samples with residual DTT, demonstrating that observed effects were related to DTT and not the extraction method. This study corroborates other reports that DTT adversely affects multiple dyes (e.g., Cy5, Quasar 670, SYBR Green I, TMR, and Mustang Purple® ). Overall, DTT causes inaccurate quantities and, consequently, inaccurate calculated male:female ratios when used in conjunction with these kits. Thus, implementation of newer direct-to-PCR assays incorporating DTT should either be avoided or used only with carefully evaluated, compatible dyes.
Oncolysis with DTT-205 and DTT-304 generates immunological memory in cured animals
Cell Death Dis 2018 Oct 23;9(11):1086.PMID:30352991DOI:10.1038/s41419-018-1127-3.
Oncolytic peptides and peptidomimetics are being optimized for the treatment of cancer by selecting agents with high cytotoxic potential to kill a maximum of tumor cells as well as the capacity to trigger anticancer immune responses and hence to achieve long-term effects beyond therapeutic discontinuation. Here, we report on the characterization of two novel oncolytic peptides, DTT-205 and DTT-304 that both selectively enrich in the lysosomal compartment of cancer cells yet differ to some extent in their cytotoxic mode of action. While DTT-304 can trigger the aggregation of RIP3 in ripoptosomes, coupled to the phosphorylation of MLKL by RIP3, DTT-205 fails to activate RIP3. Accordingly, knockout of either RIP3 or MLKL caused partial resistance against cell killing by DTT-304 but not DTT-205. In contrast, both agents shared common features in other aspects of pro-death signaling in the sense that their cytotoxic effects were strongly inhibited by both serum and antioxidants, partially reduced by lysosomal inhibition with bafilomycin A1 or double knockout of Bax and Bak, yet totally refractory to caspase inhibition. Both DTT-304 and DTT-205 caused the exposure of calreticulin at the cell surface, as well as the release of HMGB1 from the cells. Mice bearing established subcutaneous cancers could be cured by local injection of DTT-205 or DTT-304, and this effect depended on T lymphocytes, as it led to the establishment of a long-term memory response against tumor-associated antigens. Thus, mice that had been cured from cancer by the administration of DTT compounds were refractory against rechallenge with the same cancer type several months after the disappearance of the primary lesion. In summary, DTT-205 and DTT-304 both have the capacity to induce immunotherapeutic oncolysis.
Dithiothreitol (DTT) rescues mitochondria from nitrofurantoin-induced mitotoxicity in rat
J Biochem Mol Toxicol 2016 Dec;30(12):588-592.PMID:27373690DOI:10.1002/jbt.21825.
Nitrofurantoin (N-(5-nitro-2-furfurylidine) 1-amino-hydantoine; NIT) is mainly used for the treatment of acute urinary tract infections. However, its administration can be associated with liver failure or cirrhosis. The aim of this study was to determine whether NIT is a mitochondrial toxicant, if so, what mechanism(s) is involved. The rat liver mitochondria were isolated and treated with different doses of NIT alone or in combination with a reagent of choice for protecting thiol groups, dithiothreitol (DTT). Several mitochondrial parameters, including succinate dehydrogenase activity (also called 3-(4,5-dimethylthiazol-2-yl) 2,5-diphenyl tetrazolium bromide assay), lipid peroxidation, superoxide dismutase activity, Reduced glutathione (GSH), and oxidized glutathione (GSSG), and GSSG (oxidized glutathione) levels were determined. The results from this study showed that simultaneous treatment of mitochondria with NIT and DTT significantly reduces the toxicity. Here, we provide evidence that mitochondrial dysfunction followed by depletion of reduced glutathione can be reversed by DTT administration.