Name :
Recombinant Human alpha amylase/AMY2A Protein (His Tag), HPLC-verified
Biological Activity :
Background :
Alpha-amylase is the major form of amylase found in humans and other mammals. Amylases are secreted proteins that hydrolyze 1,4-alpha-glucoside bonds in oligosaccharides and polysaccharides, and thus catalyze the first step in digestion of dietary starch and glycogen. Alpha-amylase hydrolyses alpha bonds of large, alpha-linked polysaccharides, such as starch and glycogen, yielding glucose and maltose. Amylases is widely expressed and is most prominent in pancreatic juice and saliva, each of which has its own isoform of human α-amylase. They behave differently on isoelectric focusing, and can also be separated in testing by using specific monoclonal antibodies.
Biological Activity :
Testing in progress
Expression Host :
Human
Source :
HEK293 Cells
Tag :
Protein Accession No. :
P04746
NCBI Gene ID :
Synonyms :
Synonyms :
amylase, alpha 2A (pancreatic)
Amino Acid Sequence :
Molecular Weight :
The recombinant human AMY2A consists of 507 amino acids and predicts a molecular mass of 57.3 KDa. It migrates as an approximately 53-58 KDa band in SDS-PAGE under reducing conditions.
Purity :
≥ 85 % as determined by SDS-PAGE. ≥ 90 % as determined by SEC-HPLC.
State of Matter :
Product Concentration :
Storage and Stability :
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃. Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Endotoxin Level :
< 1.0 EU per μg of the protein as determined by the LAL method
Protein Construction :
A DNA sequence encoding the human AMY2A (P04746) (Met1-Leu511) was expressed with a polyhistidine tag at the C-terminus.
Buffer Solution :
Lyophilized from sterile 50mM Tris, 100mM NaCl, 10% Glycerol, 5% Trehalose, 1mM CaCl2, pH 8.5.Please contact us for any concerns or special requirements. Normally 5 % – 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hardcopy of datasheet.
Shipping :
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Redissolution :
A hardcopy of datasheet with reconstitution instructions is sent along with the products. Please refer to it for detailed information.
Synonyms :
AMY2 Protein, Human; AMY2A Protein, Human; PA Protein, Human alpha amylase/AMY2A 背景信息 Alpha-amylase is the major form of amylase found in humans and other mammals. Amylases are secreted proteins that hydrolyze 1,4-alpha-glucoside bonds in oligosaccharides and polysaccharides, and thus catalyze the first step in digestion of dietary starch and glycogen. Alpha-amylase hydrolyses alpha bonds of large, alpha-linked polysaccharides, such as starch and glycogen, yielding glucose and maltose. Amylases is widely expressed and is most prominent in pancreatic juice and saliva, each of which has its own isoform of human α-amylase. They behave differently on isoelectric focusing, and can also be separated in testing by using specific monoclonal antibodies.
References & Citations :
Abe A, et al. (2005) Complexes of Thermoactinomyces vulgaris R-47 Alpha-amylase / AMY2A 1 and pullulan model oligossacharides provide new insight into the mechanism for recognizing substrates with alpha-(1,6) glycosidic linkages. FEBS J. 272(23):6145-53.Aghajari, N, et al. (1998) Crystal structures of the psychrophilic Alpha-amylase / AMY2A from Alteromonas haloplanctis in its native form and complexed with an inhibitor. Protein Sci. 7(3): 564-72.Ramasubbu, N, et al. (1996) Structure of Human Salivary -Amylase at 1.6 Resolution: Implications for its Role in the Oral Cavity. Acta Crystallographica Section D Biological Crystallography. 52(3):435-46.
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