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Merck

SAE0158

Sigma-Aldrich

Streptomyces griseus由来キチナーゼ

chromatographically purified, lyophilized powder, free of DNA contaminants, suitable for Microbiome research

別名:

Chitinase from Streptomyces griseus, (1→4)-2-acetamido-2-deoxy-beta-D-glucan glycanohydrolase), Chitodextrinase, Hydrolitic enzyme, Lytic Enzyme, Poly(β-(1→4)-[2-acetamido-2-deoxy-D-glucoside]) glycanohydrolase, Poly(1,4-β-[2-acetamido-2-deoxy-D-glucoside]) glycanohydrolase, beta-1,4-poly-N-acetyl glucosamidinase, poly-beta-glucosaminidase

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About This Item

UNSPSCコード:
12352204

品質水準

比活性

>200 USP units/mg solid

特徴

DNA free

輸送温度

wet ice

保管温度

−20°C

詳細

Chitinase is an extracellular complex of enzymes that degrade chitin. Chitin is a cell wall component of Fungi and exoskeletal essentials of different organisms which reshape their own chitin or digest/dissolve the chitin of other organisms (insects, fungi, yeast, and algae, and in the internal structures of other vertebrates). Chitinases have been detected in many microorganisms and in plants. In fungi, chitinases assist in morphogenesis, to break down the inherent chitin content of fungal cell walls. Plant chitinases help in resistance to fungal attack and counteracting fungal growth, by targeting those same fungal cell walls. In bacteria, bacterial chitinases assist in utilizing chitin as a carbon source and as an energy source. Streptomyces griseus produces multiple chitinases of different molecular masses after growth induction with chitin as the carbon source.

The enzymatic hydrolysis of chitin to N-acetyl-D-glucosamine involves two consecutive enzyme reactions:
  • The first reaction, chitodextrinase-chitinase, is a poly(β-(1→4)-[2-acetamido-2-deoxy-D-glucoside])- glycanohydrolase, which removes chitobiose units from chitin.
  • The second activity is N-acetyl-glucosaminidasechitobiase, which cleaves the disaccharide to its monomer subunits, N-acetyl-D-glucosamine.

アプリケーション

  • Agriculture fields: control pathogens.
  • Human health care: Asthma.
  • Pharma: preparation of chitooligosaccharides and N-acetyl D glucosamine,
  • Preparation of single-cell protein
  • Isolation of protoplasts from fungi and yeast
  • Control of pathogenic fungi
  • Treatment of chitinous waste, mosquito control and morphogenesis
The study of microbial communities has recently been revolutionized by the widespread adoption of culture- independent analytical techniques such as 16S rRNA gene sequencing and metagenomics. Since DNA contamination during sample preparation is a major problem of these sequence-based approaches, DNA extraction reagents free of DNA contaminants are essential. Purified Chitinase SAE0158 undergoes strict quality control testing to ensure the absence of detectable levels of contaminating DNA, using 35 cycles of PCR amplification of 16S and 18S rDNA, using universal primer sets.

特徴および利点

This Chitinase is free of DNA contaminates, suitable for microbiome research. Cell walls digestion is performed safely by chitin degradation in fungi and other organisms.

単位の定義

One unit will liberate 1.0 mg of N-acetyl-D-glucosamine from chitin per hour at pH 6.0 at 25 °C in a 2-hour assay.

ピクトグラム

Health hazard

シグナルワード

Danger

危険有害性情報

注意書き

危険有害性の分類

Resp. Sens. 1

保管分類コード

11 - Combustible Solids

WGK

WGK 3


試験成績書(COA)

製品のロット番号・バッチ番号を入力して、試験成績書(COA) を検索できます。ロット番号・バッチ番号は、製品ラベルに「Lot」または「Batch」に続いて記載されています。

以前この製品を購入いただいたことがある場合

文書ライブラリで、最近購入した製品の文書を検索できます。

文書ライブラリにアクセスする

Yuichiro Kezuka et al.
Journal of molecular biology, 358(2), 472-484 (2006-03-07)
Chitinase C (ChiC) from Streptomyces griseus HUT6037 was the first glycoside hydrolase family 19 chitinase that was found in an organism other than higher plants. An N-terminal chitin-binding domain and a C-terminal catalytic domain connected by a linker peptide constitute

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