Skip to Content
Merck
All Photos(1)

Key Documents

L6397

Sigma-Aldrich

Concanavalin A from Canavalia ensiformis (Jack bean)

peroxidase conjugate, lyophilized powder

Synonym(s):

ConA

Sign Into View Organizational & Contract Pricing


About This Item

UNSPSC Code:
12352202
NACRES:
NA.32

biological source

Canavalia ensiformis (jack bean)

Quality Level

conjugate

peroxidase conjugate

form

lyophilized powder

technique(s)

blood typing: suitable
fractionation: suitable

impurities

carbohydrate, essentially free

storage temp.

−20°C

Looking for similar products? Visit Product Comparison Guide

Application

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)

Biochem/physiol Actions

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.

Packaging

Package size based on protein content

Unit Definition

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

Physical form

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

Preparation Note

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.

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

Repr. 2 - Resp. Sens. 1 - Skin Sens. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Frederik Bühring Bjørkskov et al.
Scientific reports, 7(1), 16899-16899 (2017-12-06)
The sparse number of high-resolution human membrane protein structures severely restricts our comprehension of molecular physiology and ability to exploit rational drug design. In the search for a standardized, cheap and easily handled human membrane protein production platform, we thoroughly
Jia Yang et al.
Journal of plant physiology, 226, 1-11 (2018-04-25)
Stress-adapted wild plants are natural sources of novel genes for molecular breeding. Here, we conducted a transcriptional analysis of Pinus sylvestris var. mongolica Litv, an evergreen pine in northeastern China, to identify a novel CALMODULIN-LIKE protein-encoding gene, PsCML1, no significant
Ingrid Sander et al.
International archives of allergy and immunology, 141(1), 51-56 (2006-06-29)
A pharmaceutical industry worker was exposed to dust of gum arabic in the tablet coating plant and complained of work-related shortness of breath, chest tightness, runny nose, itching and redness of the eyes. This case was investigated for allergy to
Wilson, M.B. and Nakane, P.K. et al.
Immunofluorescence and Related Staining Techniques, 215-215 (1978)
Noah Kassem et al.
Science advances, 7(27) (2021-07-02)
Because of its small size (70 kilodalton) and large content of structural disorder (>50%), the human growth hormone receptor (hGHR) falls between the cracks of conventional high-resolution structural biology methods. Here, we study the structure of the full-length hGHR in

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service