3.2.1.2: beta-amylase

This is an abbreviated version!
For detailed information about beta-amylase, go to the full flat file.

Word Map on EC 3.2.1.2

3.2.1.2

starch

alpha-amylase

maltose

barley

potato

soybean

sweet

amylopectin

amylolytic

glucoamylase

endosperm

hordeum

amylases

pullulanase

debranching

dextrin

nutrition

maltotetraose

thermosulfurogenes

isoamylase

beta-limit

starch-degrading

amyloglucosidase

polymyxa

maltotriose

maltopentaose

granule-bound

alpha-cyclodextrin

extrachloroplastic

industry

sporamin

molecular biology

brewing

Reaction

(alpha-D-glucopyranosyl-(1-4))n-alpha-D-glucopyranose

+

H2O

=

(alpha-D-glucopyranosyl-(1-4))n-2-alpha-D-glucopyranose

+

alpha-D-glucopyranosyl-(1-4)-beta-D-glucopyranose

Synonyms

(1-4)-alpha-D-glucan maltohydrolase, 1,4-alpha-D-glucan malto-hydrolase, 1,4-alpha-D-glucan maltohydrolase, 1-4-alpha-glucan maltohydrolase, alpha-1,4-glucan maltohydrolase, amylase, beta-, ARATH, BAM-1, BAM-2, BAM-3, BAM-5, BAM-6, BAM-7, BAM-8, BAM-9, BAM1, BAM3, BAM4, BCB, beta amylase, beta-amylase, beta-amylase 1, beta-amylase I, beta-amylase1, beta-amylase2, beta-amylase8, BMY, Bmy1, Bmy2, Cs-COR018, CT-BMY, glycogenase, More, PF0870, saccharogen amylase, saccharogenamylase, SBA, Sd1, Sd2H, Sd2L, spoII, TCMA, TR-BAMY, type I beta-amylase, type II beta-amylase

ECTree

3.2 Glycosylases

3.2.1 Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds

3.2.1.2 beta-amylase

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Results	in table
24	Activating Compound
4772	AA Sequence
17	Application
1	CAS Registry Number
29	Cloned(Commentary)
16	Crystallization (Commentary)
3	Expression
1	General Information
6	General Stability
195	Inhibitors
3	kcat/KM [mM/s]
13	Ki Value [mM]
80	KM Value [mM]
46	Localization
29	Metals/Ions
73	Molecular Weight [Da]
48	Natural Substrates/ Products (Substrates)
1	Organic Solvent Stability
181	Organism
1	Oxidation Stability
9	Pathway
76	PDB ID
74	pH Optimum
24	pH Range
33	pH Stability
11	pI Value
12	Posttranslational Modification
81	Protein Variants
53	Purification (Commentary)
28	Reaction
1	Reaction Type
170	Reference
108	Source Tissue
54	Specific Activity [micromol/min/mg]
3	Storage Stability
280	Substrates and Products (Substrate)
41	Subunits
74	Synonyms
1	Systematic Name
65	Temperature Optimum [°C]
18	Temperature Range [°C]
72	Temperature Stability [°C]
34	Turnover Number [1/s]

Molecular Weight

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Molecular Weight on EC 3.2.1.2 - beta-amylase

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102000

Priestia megaterium

-

1 * 102000, SDS-PAGE

105000

Priestia megaterium

-

gel filtration

110000

-

gel filtration, sucrose density gradient centrifugation, ultracentrifugation

111000

Solanum tuberosum

-

gel filtration

152000

show

19600

Triticum aestivum

-

x * 19600, calculation of the minimum molecular weight from amino acid content

200000

Calystegia sepium

gel filtration

206000

Ipomoea batatas

-

determination from crystallographic data

209000

Ipomoea batatas

-

variant Tainung, gel filtration

210000

Thermoanaerobacterium thermosulfurigenes

-

gel filtration

239000

Ipomoea batatas

-

variant Chailai, gel filtration

240000

Phaffia rhodozyma

-

gel filtration

26000

-

4 * 26000, SDS-PAGE

29000

Euphorbia esula

mature BAM1, SDS-PAGE

315000

Ipomoea batatas

-

enzyme modified with periodate-oxidized maltohexaose, gel filtration

35000

show

41700

Medicago sativa

-

light amylase, gel filtration

44000

Paenibacillus polymyxa

-

beta-amylase I and II, gel filtration

45000

Entamoeba invadens

-

gel filtration

51000

Thermoanaerobacterium thermosulfurigenes

-

4 * 51000, SDS-PAGE

53000

show

54600

Arabidopsis thaliana

-

BAM-2

55000

show

55500

show

55800

Arabidopsis thaliana

-

calculated, BAM-3

55990

-

isoenzyme I and II, electrospray ionization mass spectroscopy

56000

show

56068

Calystegia sepium

4 * 55000, SDS-PAGE, 4 * 56068, mass spectrometry, 4 * 56204, sequence calculation inclusive the N-terminal methionine

56100

-

amino acid analysis

56204

Calystegia sepium

4 * 55000, SDS-PAGE, 4 * 56068, mass spectrometry, 4 * 56204, sequence calculation inclusive the N-terminal methionine

56310

-

isoenzyme IV, electrospray ionization mass spectroscopy

57000

show

57200

Hordeum vulgare

-

equilibrium sedimentation

58000

show

58300

Bacillus cereus

x * 58300, Western blot analysis

59144

Hordeum vulgare

-

x * 59144, mutant enzyme M185L/S295A/I297V/S350P/S351P/Q352D/A376S, calculation from amino acid sequence

59169

Hordeum vulgare

-

x * 59169, recombinant enzyme, calculation from amino acid sequence

59500

Arabidopsis thaliana

-

calculated, BAM-1

60000

show

61000

show

62000

show

62500

Bacillus cereus

-

equilibrium sedimentation

64000

show

65700

Medicago sativa

-

heavy amylase, gel filtration

67120

Thermococcus sp.

-

67500

Arabidopsis thaliana

-

BAM-1

68000

Paenibacillus polymyxa

-

-

70000

show

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Release 2023.1 (January 2023)