추천 제품
생물학적 소스
Phaseolus vulgaris
형태
lyophilized powder
효능
erythroagglutination activity (Does not agglutinate a 2% suspension of human erythrocytes at <62.5 μg lectin/ml.)
≤1.0 μg/mL leucoagglutination activity
≤5 μg/mL mitogenic activity
구성
Protein, ≥60% biuret
불순물
salt, free
저장 온도
2-8°C
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관련 카테고리
일반 설명
Phytohemagglutinin (PHA) derived from Phaseolus vulgaris is a tetrameric glycoprotein. It consists of two different subunits, that weighs 120 kDa.
애플리케이션
Lectin from Phaseolus vulgaris (red kidney bean) has been used:
- as a positive control in ELISPOT (enzyme-linked immunospot) assay
- to induce Th2 polarization for T-cell differentiation in vitro
- as controls in the lymphocyte proliferation assays
생화학적/생리학적 작용
PHA consists of two molecular species, an erythroagglutinin (PHA-E) which has low mitogenic activity and high erythroagglutinin activity, and leucoagglutinin (PHA-L) which has high mitogenic and leucoagglutinating activity, but very low erythroagglutinating activity.
PHA-E is not blood group specific, but agglutination can be inhibited by certain oligosaccharides. PHA-P is the protein form of PHA prior to separation and purification of erythroagglutinin and leucoagglutinin. PHA-M is the mucoprotein form. Conjugates are prepared from the corresponding purified lectins.
PHA-E is not blood group specific, but agglutination can be inhibited by certain oligosaccharides. PHA-P is the protein form of PHA prior to separation and purification of erythroagglutinin and leucoagglutinin. PHA-M is the mucoprotein form. Conjugates are prepared from the corresponding purified lectins.
제조 메모
Purified by a modification of the method of Leavitt.
분석 메모
Agglutination activity is expressed in μg/ml and is determined from serial dilutions of a 1 mg/ml solution. This activity is the lowest concentration to agglutinate a suspension of either human erythrocytes (2% in phosphate buffered saline, pH 6.8) or human leukocytes (107 per mL in saline) after 1 hr incubation at 25 °C.
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)
시험 성적서(COA)
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문서
Find the right lectin for your research with our lectin selection guide, organized by lectin source/species, carbohydrate specificity, blood group specificity, and more.
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