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Merck
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文件

233153-M

Millipore

Cleland′s Reagent

ULTROL® Grade, ≥99% (titration), protective agent for SH groups

别名:

Cleland’s Reagent, ULTROL® Grade, Dithiothreitol, DTT

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About This Item

经验公式(希尔记法):
C4H10O2S2
CAS号:
分子量:
154.25
MDL號碼:
分類程式碼代碼:
12161504
NACRES:
NA.25

品質等級

化驗

≥99% (titration)

形狀

solid

反應適用性

reagent type: reductant

製造商/商標名

Calbiochem®

儲存條件

OK to freeze

顏色

white

溶解度

water: 200 mM
ethanol: soluble

正離子痕跡

heavy metals: <1 ppm

儲存溫度

2-8°C

InChI

1S/C4H10O2S2/c5-3(1-7)4(6)2-8/h3-8H,1-2H2/t3-,4-/m0/s1

InChI 密鑰

VHJLVAABSRFDPM-IMJSIDKUSA-N

一般說明

A protective agent for SH groups.
Absorbance: (100 mM, 280 nm):≤0.1. Oxidized dithiothreitol:≤0.5%.
DTT is a water-soluble protective reagent for sulfhydryl groups. It maintains monothiols in the reduced state and reduces disulfides quantitatively. Most widely used for the study of disulfide exchange reactions of protein disulfides. DTT readily permeates cell membranes, protecting protein sulfhydryls and restoring enzyme activity lost by the oxidation of sulfhydryl groups in vitro. As a reducing agent, it cyclizes as it reduces disulfides to thiols, so the reaction is "driven" to completion without using large excesses of reductant. If free thiols are to be assayed later, excess reductant must be removed by dialysis or some other appropriate method. Alternatively, an immobilized form of DTT (REDUCTACRYL Reagent, Cat. No. 233157) can be used. Absorbance: (100 mM, 280 nm):≤0.05. Oxidized dithiothreitol:≤0.5%.

應用


  • Mechanochemical disulfide reduction reveals imprints of noncovalent sulfuroxygen chalcogen bonds in protein-inspired mimics in aqueous solution.: This study highlights the use of Cleland′s reagent in exploring noncovalent interactions in protein mimics under mechanochemical conditions, shedding light on disulfide bond dynamics relevant to protein engineering and drug design (Dopieralski et al., 2020).

  • A Simple In Vitro Gut Model for Studying the Interaction between Escherichia coli and the Intestinal Commensal Microbiota in Cecal Mucus.: Utilizes Cleland′s Reagent in microbiological assays to understand the complex interactions within the gut microbiome, providing insights important for developing therapeutic strategies against intestinal diseases (Mokszycki et al., 2018).

  • Synthesis of the marine bromotyrosine psammaplin F and crystal structure of a psammaplin A analogue.: Discusses the role of Cleland′s reagent in the synthesis and structural analysis of marine natural products, which are potential leads for novel pharmaceuticals (Yang et al., 2010).

  • Effects of dithiothreitol on protein activity unrelated to thiol-disulfide exchange: for consideration in the analysis of protein function with Cleland′s reagent.: This research investigates the broader biochemical impacts of Cleland′s Reagent (dithiothreitol) beyond its primary use, offering a cautionary perspective for its application in protein studies (Alliegro, 2000).

  • A modified reagent for the confirmation of blood.: Describes a forensic application where Cleland′s Reagent is modified for enhanced sensitivity and specificity in blood detection, crucial for forensic science and criminal investigations (Hatch, 1993).


警告

Toxicity: Harmful (C)

重構

Following reconstitution, aliquot and freeze (-20°C) under an inert gas. Avoid contact with metals. Stock solutions are stable for up to 3 months at -20°C.

其他說明

Chau, M-H., and Nelson, J.W. 1991. FEBS Lett.291, 296.
Lauriault, V.V.M., and O′Brien, P.J. 1991. Mol. Pharmacol.40, 125.
Klonne, D.R., and Johnson, D.R. 1988. Toxicol. Lett.42, 199.
Zhang, R., and Snyder, G.H. 1988. Biochemistry27, 3785.
Shaked, Z., et al. 1980. Biochemistry19, 4156.
Zahler, W.L., and Cleland, W.W. 1968. J. Biol. Chem.243, 716.
Cleland, W.W. 1964. Biochemistry3, 480.

法律資訊

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
ULTROL is a registered trademark of Merck KGaA, Darmstadt, Germany

象形圖

CorrosionExclamation mark

訊號詞

Danger

危險聲明

危險分類

Acute Tox. 4 Oral - Eye Dam. 1 - Skin Irrit. 2

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 2

閃點(°F)

Not applicable

閃點(°C)

Not applicable


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实验方案

Overcome challenges in synthesis and disulfide bond formation with protocols for Fmoc solid-phase peptide synthesis of peptides with cysteine and methionine.

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