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Key Documents

G7163

Sigma-Aldrich

α-Galactosidase, positionally specific from Escherichia coli

recombinant, expressed in E. coli, buffered aqueous solution

Synonym(s):

1,6-alpha-D-galactoside galactohydrolase, alpha-Galactosidase, melibiase

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About This Item

CAS Number:
Enzyme Commission number:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.32

recombinant

expressed in E. coli

Quality Level

form

buffered aqueous solution

specific activity

≥20 units/mg protein

mol wt

80 kDa

shipped in

wet ice

storage temp.

2-8°C

Gene Information

Escherichia coli CFT073 ... melA(1037886)

Biochem/physiol Actions

Cleaves α(1→3)- and α(1→6)-linked, non-reducing terminal galactose from complex carbohydrates and glycoproteins. It is particularly efficient for removing α-linked galactose under conditions where the pH must be neutral or above, for example, with live cells.

Unit Definition

One unit will hydrolyze 1 μmole of p-nitrophenyl α-D-galactopyranoside per min at pH 6.5 at 25 °C.

Physical form

This product is a sterile-filtered aqueous buffered solution.

inhibitor

Product No.
Description
Pricing

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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’.

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K Schmid et al.
European journal of biochemistry, 67(1), 95-104 (1976-08-01)
The utilization by Escherichia coli K12 of raffinose as sole carbon source depends on a new raffinose transport system, an invertase and an alpha-galactosidase specified by the Raf-plasmid D1021. The alpha-galactosidase was purified to homogeneity from a mutant strain with
Shuo Gao et al.
Frontiers in chemistry, 9, 709581-709581 (2021-08-03)
For wide applications of the lacZ gene in cellular/molecular biology, small animal investigations, and clinical assessments, the improvement of noninvasive imaging approaches to precisely assay gene expression has garnered much attention. In this study, we investigate a novel molecular platform
M Benelmekki et al.
Colloids and surfaces. B, Biointerfaces, 101, 370-375 (2012-09-27)
Biomagnetic immobilization of histidine-rich proteins based on the single-step affinity adsorption of transition metal ions continues to be a suitable practice as a cost effective and a up scaled alternative to the to multiple-step chromatographic separations. In our previous work
Xiao-Liang Pan et al.
The journal of physical chemistry. B, 117(2), 484-489 (2012-12-20)
The enzyme α-galactosidase (α-GAL), a member of glycoside hydrolase family 27, catalyzes the removal of a nonreducing terminal α-galactose residue from polysaccharides, glycolipids, and glycopeptides. α-GAL is believed to have the double displacement retaining reaction mechanism. In this work, the
Junpei Zhou et al.
Journal of microbiology and biotechnology, 22(11), 1532-1539 (2012-11-06)
The α-galactosidase-coding gene agaAJB13 was cloned from Sphingomonas sp. JB13 showing 16S rDNA (1,343 bp) identities of < or =97.2% with other identified Sphingomonas strains. agaAJB13 (2,217 bp; 64.9% GC content) encodes a 738-residue polypeptide (AgaAJB13) with a calculated mass

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