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Merck
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Key Documents

SAE0086

Sigma-Aldrich

Peptidyl Arginine Deiminase Type 4

human recombinant, expressed in E. coli, aqueous solution

동의어(들):

Peptidyl Arginine Deiminase Type 4, PAD4, PADI4, Protein arginine iminohydrolase 4

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About This Item

효소 위원회 번호:
3.5.3.15
UNSPSC 코드:
12352204
NACRES:
NA.54

생물학적 소스

human

Quality Level

재조합

expressed in E. coli

분석

≥90% (SDS-PAGE)

형태

aqueous solution

특이 활성도

≥200 units/mg protein

분자량

74 kDa

UniProt 수납 번호

응용 분야

genomic analysis

배송 상태

dry ice

저장 온도

−20°C

유전자 정보

human ... PADI4(23569)

일반 설명

Peptidyl Arginine Deiminases (PADs) perform post-translational deiminations of proteins. PADs are calcium-dependent enzymes that catalyze the conversion of L-arginine residues to L-citrulline. The catalyzed reaction is as follows:

2+
Ca Protein--[L-arginine] + H2O ––––> Protein--[L-citrulline]

There are five mammalian PADs sub-types, which differ in substrate specificity and tissue distribution. PAD enzymes are highly homologous, with 50–60% sequence similarity.1 PADs play important roles in gene regulation by citrullination of arginine residues on histones H3, H2A, and H4. Overexpression of PADs has been found in conditions such as rheumatoid arthritis, Alzheimer′s disease, multiple sclerosis, lupus,Parkinson′s disease, and cancer.2,3

PAD4 is widely expressed in the immune system with expression pathology in various tumor and cancer cell lines.5 In cells, PAD4 can be found in the cytoplasm and nucleus. PAD4 activity has been correlated to the development and progress of Rheumatoid Arthritis (RA).2,5 A study in mice has indicated a mechanism for the development of RA by anticitrullin autoimmunity.6

This recombinant human PAD4 is expressed in Escherichia coli as a fusion protein. The fusion partner is removed by HRV3C protease digestion, followed by chromatographic purification.

생화학적/생리학적 작용

Calcium is required for peptidylarginine deiminase activity in vitro.

단위 정의

One unit will produce 1 μmole of N-a-benzoylcitrulline ethyl ester from BAEE per hour at 37 °C at pH 7.7.

물리적 형태

Supplied as an aqueous solution in 10 mM Tris (pH 7.5), 500 mM NaCl, 1 mM EDTA, and 1 mM DTT.

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 1

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable


시험 성적서(COA)

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문서 라이브러리 방문

Pekka Rappu et al.
Frontiers in oncology, 12, 1035188-1035188 (2022-12-20)
Protein arginine deiminases (PADs) are intracellular enzymes that may, especially in pathological conditions, also citrullinate extracellular substrates, including matrisome proteins such as structural proteins in extracellular matrix (ECM). PADs are abundantly expressed in human cancer cells. Citrullination of matrisome proteins

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