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C7555

Sigma-Aldrich

Concanavalin A from Canavalia ensiformis (Jack bean)

agarose conjugate, Type VI, saline suspension

Synonym(s):

ConA

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About This Item

UNSPSC Code:
12161501
NACRES:
NA.32

biological source

Canavalia ensiformis

Quality Level

conjugate

agarose conjugate

type

Type VI

form

saline suspension

extent of labeling

15-30 mg concanavalin A protein per mL

matrix

cross-linked 4% beaded agarose

matrix activation

cyanogen bromide

matrix attachment

amino

matrix spacer

1 atom

storage temp.

2-8°C

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General description

Concanavalin A (Con A), isolated from Jack beans (Canavalia ensiformis), is a mannose or glucose specific-binding lectin. The lectin is a tetramer and each subunit possesses a saccharide-binding site. Con A can be isolated by affinity chromatography with dextrans.

Application

Concanavalin A (Con A) has been used for enzyme immobilization.
Used for the purification of glycoproteins containing mannose

Biochem/physiol Actions

Concanavalin A (Con A) is a T cell mitogen that can activate the lymphocytes.
Con A can induce tumor cell death through autophagy.
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.

Physical form

Suspension in 1.0 M NaCl + 0.1 M potassium phosphate, pH 6.0, with 1 mM CaCl2, 1 mM MgCl2 and 1 mM MnCl2 containing preservative

Analysis Note

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.

Pictograms

Health hazard

Signal Word

Danger

Hazard Statements

Hazard Classifications

Resp. Sens. 1 - Skin Sens. 1

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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The effects of several commonly used detergents on the saccharide-binding activities of lectins were investigated using lectin-mediated agglutination of formalin-fixed erythrocytes and affinity chromatography of glycoproteins on columns of lectins immobilized on polyacrylic hydrazide-Sepharose. In the hemagglutination assays, Ricinus communis
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