추천 제품
생물학적 소스
Porcine gastric mucosa
Quality Level
양식
lyophilized powder
특이 활성도
≥30 units/mg dry solid
분자량
35 kDa
Matrix
4% cross-linked beaded agarose
UniProt 수납 번호
저장 온도
−20°C
유전자 정보
pig ... LOC396892(396892)
일반 설명
Pepsin is an enzyme found in gastric secretion.
애플리케이션
Pepsin immobilized onto agarose beads can be used to digest and then separate out the active peptides of the glycoprotein gliadin.
Pepsin-agarose has been used as an immobilization tool to investigate the refolding ability of the pepsin enzyme. It has also been used for the preparation of F(ab′)2 fragments from rabbit IgG.
Used to produce F(ab′)2 fragments of antibodies.1
생화학적/생리학적 작용
Preferentially cleaves C-terminal to Phe, Leu and Glu. It does not cleave at Val, Ala or Gly. pH optimum 2-4. Active in 4 M urea and 3 M guanidine HCl. Stable at 60 °C. Pepsin is irreversibly inactivated at pH > 6.
단위 정의
One unit will produce a ΔA280 of 0.001 per min at pH 2.0 at 37 °C, measured as TCA-soluble products using hemoglobin as substrate. (Final volume = 16 mL. Light path = 1 cm.)
수량
One gram solid swells to 5-10ml packed gel.
물리적 형태
Lyophilized powder stabilized with lactose
신호어
Danger
유해 및 위험 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
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
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시험 성적서(COA)
Lot/Batch Number
이미 열람한 고객
Ludmila Tucková et al.
Journal of leukocyte biology, 71(4), 625-631 (2002-04-03)
Celiac disease, induced by dietary gluten, is characterized by mucosal atrophy and local inflammation associated with cell infiltration and activation. Unlike other food proteins, gluten and its proteolytic fragments, besides inducing a specific immune response, were shown to activate components
Thomas A Kraus et al.
The Journal of clinical investigation, 115(8), 2234-2243 (2005-07-26)
To explore the requirement for M cells and the Peyer's patch (PP) in induction of oral tolerance and address the potential in vivo role of intestinal epithelial cells as nonprofessional APCs, we have attempted to induce tolerance in mice with
M Feldman et al.
Gastroenterology, 110(4), 1043-1052 (1996-04-01)
Recent studies suggesting that gastric secretion does not decrease with aging included few elderly individuals and measured only acid secretion. The aims of this study were to measure gastric acid and pepsin output in 206 health Americans (age range, 18-98
Widya A Wahab et al.
International journal of experimental pathology, 97(4), 303-309 (2016-09-24)
Coeliac disease (CD) is an inflammatory disorder of the small intestine. It includes aberrant adaptive immunity with presentation of CD toxic gluten peptides by HLA-DQ2 or DQ8 molecules to gluten-sensitive T cells. A ω-gliadin/C-hordein peptide (QPFPQPEQPFPW) and a rye-derived secalin
Katrine Lindholm Bøgh et al.
International archives of allergy and immunology, 161(1), 21-36 (2012-12-22)
It is generally believed that protein hydrolysis in the gastrointestinal tract decreases the allergenicity of food allergens. However, it remains unknown if specific properties of digestion products determine whether a sensitisation or tolerogenic immune response will develop. We sought to
문서
Antibody fragmentation with our pepsin digestion protocol for IgG antibody fragmentation and preparation of F(ab’).
프로토콜
This procedure may be used for determination of Pepsin activity using hemoglobin as the substrate. It is a spectrophotometric stop rate determination.
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