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Merck
모든 사진(4)

주요 문서

C6137

Sigma-Aldrich

Chitinase from Streptomyces griseus

lyophilized powder (essentially salt free), ≥200 units/g solid

동의어(들):

N-acetyl-glucosaminidasechitobiase, Chitin digestion enzymes, poly(β-(1→4)-[2-acetamido-2-deoxy-D-glucoside])- glycanohydrolase

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About This Item

EC Number:
UNSPSC 코드:
12352204
NACRES:
NA.54

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양식

lyophilized powder (essentially salt free)

Quality Level

특이 활성도

≥200 units/g solid

분자량

30 kDa

solubility

H2O: soluble 0.90-1.10 mg/mL

저장 온도

−20°C

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일반 설명

Chitinase is an extracellular complex of enzymes that degrade chitin. Chitin is a cell wall component of Fungi and exoskeketal 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.

애플리케이션

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

생화학적/생리학적 작용

Chitinase is an extracellular enzyme complex that degrades chitin and has a molecular mass of approximately 30 kDa. Chitin is degraded to N-acetyl-D-glucosamine in 2 enzymatic reactions. Firstly, chitobiose units are removed from chitin by chitodextrinase-chitinase. The second reaction involves N-acetyl-glucosaminidase-chitobiase, which cleaves the disaccharide to its monomer subunits (that comprise of N-acetyl-D-glucosamine). The optimum reaction temperature is 37 °C.

특징 및 장점

Chitinase is an extracellular complex of enzymes that degrade chitin. It is a lytic enzyme suitable for fungal cell walls lysis.

단위 정의

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.
One new 1 hour unit = approx. 50 old 48 hour units.

기질

제품 번호
설명
가격

픽토그램

Health hazard

신호어

Danger

유해 및 위험 성명서

예방조치 성명서

Hazard Classifications

Resp. Sens. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

개인 보호 장비

Eyeshields, Gloves, type N95 (US)


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문서 라이브러리 방문

Xinyu Liu et al.
Bio-protocol, 7(5), e2164-e2164 (2017-03-05)
Chitin is a linear polysaccharide composed of β (1→4)-linked N-acetylglucosamine (GlcNAc) residues. In fungi, chitin is an important component of the cell wall. Here, we provide a protocol to measure the chitin content of fungal cells using Magnaporthe oryzae as
Melissa S Hillwig et al.
Journal of plant physiology, 168(7), 734-738 (2010-11-26)
Previous SDS PAGE gel analysis of the floral nectars from petunia and tobacco plants revealed significant differences in the protein patterns. Petunia floral nectar was shown to contain a number of RNase activities by in gel RNase activity assay. To
Shigeo Suzuki et al.
International journal of biological macromolecules, 43(1), 13-19 (2007-11-06)
Allosamidin is a family 18 chitinase inhibitor produced by Streptomyces. In its producing strain, Streptomyces sp. AJ9463, allosamidin promotes production of the family 18 chitinase originated from chi65 in a chitin medium through the two-component regulatory system encoded by chi65R
Chitinase-resistant hydrophilic symbiotic factors secreted by Frankia activate both Ca(2+) spiking and NIN gene expression in the actinorhizal plant Casuarina glauca.
Chabaud, et al.
The New phytologist, 209, 86-93 (2020)
S Machida et al.
The Journal of biological chemistry, 268(3), 1702-1707 (1993-01-25)
The membrane-bound chitin synthase, a key enzyme of chitin biosynthesis, was purified, for the first time to homogeneity as a zymogen form. Digitonin could solubilize the enzyme from microsomal fraction of the filamentous fungus Absidia glauca, with 60-70% of the

관련 콘텐츠

세포 용해 버퍼, 단백질 추출 키트, 추출 효소, 기타 단백질 분리 및 정제를 위한 용해 강화제 등 세포 용해 및 단백질 추출 시약을 찾아보세요.

Find cell lysis and protein extraction reagents like cell lysis buffers, protein extraction kits, extraction enzymes, and other lysis enhancers for isolating and purifying proteins.

세포 용해 및 단백질 추출 방법은 세제 용해부터 기계적 파쇄법에 이르기까지 다양한 기술을 포함하며 연구에 필요한 요구 사항을 지원합니다.

Cell lysis and protein extraction methods overview various techniques, from detergent solubilization to mechanical disruption, supporting research needs.

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