콘텐츠로 건너뛰기
Merck
모든 사진(1)

주요 문서

C4963

Sigma-Aldrich

Catalase−polyethylene glycol

lyophilized powder, ~40,000 units/mg protein

동의어(들):

PEG-Catalase

로그인조직 및 계약 가격 보기


About This Item

MDL number:
UNSPSC 코드:
12352204
NACRES:
NA.54

양식

lyophilized powder

Quality Level

특이 활성도

~40,000 units/mg protein

분자량

PEG 5,000

구성

Protein, ~50% E405

라벨링 범위

~40 mol PEG per mol protein

기질 부착

secondary amine linkage.

저장 온도

−20°C

유사한 제품을 찾으십니까? 방문 제품 비교 안내

애플리케이션

Pulmonary artery endothelial cells treated with PEG-catalase showed effective inhibition of 20- HETE (hydroxyeicosatetraenoic acid)-induced increase in fluorescence. However, the experiment excludes potential nonspecific fluorescence of DCF (dichlorofluorescein). This experiment studied the effect of 20-HETE on superoxide production and NADPH oxidase activation.

생화학적/생리학적 작용

Catalase from bovine liver catalyzes the decomposition of H2O2 into water and oxygen. It is a tetramer consisting of four equal subunits with a molecular weight of 60 kDa each. Each subunit contains iron bound to a protoheme IX group. The enzyme also strongly binds NADP, which is in close proximity to the heme group. Catalase activity is constant over the pH range of 4.0-8.5. The pI is found to be 5.4. The enzyme activity is inhibited by 3-amino-1-H-1,2,4 triazole, cyanide, azide, hydroxylamine, cyanogen bromide, 2-mercaptoethanol, dithiothreitol, dianisidine, and nitrate. Incubation of catalase with ascorbate or ascorbate/Cu2+ results in degradation of the catalase molecule. It does not require any activators.

포장

Package size based on protein content

기타 정보

Catalase from bovine liver coupled to methoxy-polyethylene glycol.

물리적 형태

Contains PEG plus 5% citrate buffer salts

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)


가장 최신 버전 중 하나를 선택하세요:

시험 성적서(COA)

Lot/Batch Number

적합한 버전을 찾을 수 없으신가요?

특정 버전이 필요한 경우 로트 번호나 배치 번호로 특정 인증서를 찾을 수 있습니다.

이 제품을 이미 가지고 계십니까?

문서 라이브러리에서 최근에 구매한 제품에 대한 문서를 찾아보세요.

문서 라이브러리 방문

Kessiri Kongmanas et al.
Antioxidants (Basel, Switzerland), 10(6) (2021-07-03)
Seminolipid (also known as sulfogalactosylglycerolipid-SGG), present selectively in male germ cells, plays important roles in spermatogenesis and sperm-egg interaction. The proper degradation of SGG in apoptotic germ cells is also as important. Sertoli cells first phagocytose apoptotic germ cells, then
Joe Nassour et al.
Nature communications, 7, 10399-10399 (2016-01-30)
The main characteristic of senescence is its stability which relies on the persistence of DNA damage. We show that unlike fibroblasts, senescent epithelial cells do not activate an ATM-or ATR-dependent DNA damage response (DDR), but accumulate oxidative-stress-induced DNA single-strand breaks
Jeremiah D Keyes et al.
Free radical biology & medicine, 112, 534-543 (2017-08-28)
ERK-dependent signaling is key to many pathways through which extracellular signals are transduced into cell-fate decisions. One conundrum is the way in which disparate signals induce specific responses through a common, ERK-dependent kinase cascade. While studies have revealed intricate ways
Kathleen D Metzler et al.
Cell reports, 8(3), 883-896 (2014-07-30)
Neutrophils contain granules loaded with antimicrobial proteins and are regarded as impermeable organelles that deliver cargo via membrane fusion. However, during the formation of neutrophil extracellular traps (NETs), neutrophil elastase (NE) translocates from the granules to the nucleus via an
Emeric Deruy et al.
PloS one, 5(9), e12712-e12712 (2010-09-22)
Senescence is a state of growth arrest resulting mainly from telomere attrition and oxidative stress. It ultimately leads to cell death. We have previously shown that, in keratinocytes, senescence is induced by NF-kappaB activation, MnSOD upregulation and H(2)O(2) overproduction. We

자사의 과학자팀은 생명 과학, 재료 과학, 화학 합성, 크로마토그래피, 분석 및 기타 많은 영역을 포함한 모든 과학 분야에 경험이 있습니다..

고객지원팀으로 연락바랍니다.