L6397

Concanavalin A from Canavalia ensiformis (Jack bean)

peroxidase conjugate, lyophilized powder

• Sinónimos: ConA
• Código UNSPSC: 12352202
• NACRES: NA.32

Propiedades

• origen biológico: Canavalia ensiformis (jack bean)
• Nivel de calidad: 200
• conjugado: peroxidase conjugate
• formulario: lyophilized powder
• técnicas: blood typing: suitable; fractionation: suitable
• impurezas: carbohydrate, essentially free
• temp. de almacenamiento: −20°C

Descripción

Aplicación

Detects glycoproteins containing α-D-mannose, α-D-glucose when used with appropriate peroxidase substrate

General Western Blot Protocol:

• Glycoprotein sample size: 500ng
• Lectin Concentration: 0.1ug/ml

1. Load samples at 500 ng of glycoprotein per lane
2. Run 4-20% Bis-Tris SDS page gel
3. Transfer gel to a PVDF membrane
4. Block membrane for 1 hr at RT with RIPA buffer (R0278 Sigma)
5. Incubate HRP lectin at 0.1ug/ml with RIPA buffer for 2 hours at RT
6. Wash membrane 5 x 5 minutes with 25ml RIPA buffer
7. Detect using chemiluminescent substrate (CPS1-120)

Acciones bioquímicas o fisiológicas

Con A is not blood group specific but has an affinity for terminal α-D-mannosyl and α-D-glucosyl residues. Ca²⁺ and Mn²⁺ ions are required for activity. Con A dissociates into dimers at pH 5.6 or below. Between pH 5.8 and pH 7.0, Con A exists as a tetramer; above pH 7.0 higher aggregates are formed. Con A exhibits mitogenic activity which is dependent on its degree of aggregation. Succinylation results in an active dimeric form which remains a dimer above pH 5.6.

Envase

Package size based on protein content

Definición de unidad

One unit will form 1 mg purpurogallin in 20 sec from pyrogallol at pH 6.0 at 20 °C.

Forma física

Lyophilized powder containing tris-citrate buffer salts and trace calcium and manganese

Nota de preparación

Prepared from peroxidase type VI (P8375), using the method of Wilson and Nakane, which promotes conjugation but prevents the interaction between Con A and peroxidase sugar residues.

Nota de análisis

Where reported, agglutination activity is expressed in μg/ml and is determined from serial dilutions in phosphate buffered saline, pH 6.8, containing Ca²⁺ and Mn²⁺ of a 1 mg per mL solution. This activity is the lowest concentration to agglutinate a 2% suspension of human erythrocytes after 1 hr incubation at 25 °C.

Información de seguridad

• Pictogramas: GHS08
• Palabra de señalización: Danger
• Frases de peligro: H317,H334,H361
• Consejos de prudencia: P202 - P261 - P272 - P280 - P302 + P352 - P308 + P313
• Clasificaciones de peligro: Repr. 2 - Resp. Sens. 1 - Skin Sens. 1
• Código de clase de almacenamiento: 11 - Combustible Solids
• Clase de riesgo para el agua (WGK): WGK 3
• Punto de inflamabilidad (°F): Not applicable
• Punto de inflamabilidad (°C): Not applicable
• Equipo de protección personal: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges