Any feedback?
Please rate this page
(literature.php)
(0/150)

BRENDA support

Literature summary extracted from

  • Aktuganov, G.E.; Galimzianova, N.F.; Gilvanova, E.A.; Pudova, E.A.; Kuzmina, L.Y.; Melentiev, A.I.; Safina, V.R.
    Purification and characterization of exo-beta-1,4-glucosaminidase produced by chitosan-degrading fungus, Penicillium sp. IB-37-2A (2019), World J. Microbiol. Biotechnol., 35, 18 .
    View publication on PubMed

Activating Compound

EC Number Activating Compound Comment Organism Structure
3.2.1.165 PEG 3000 105.4% activity at 1 mM Penicillium sp. IB-37-2A
3.2.1.165 Triton X-100 110% activity at 1 mM Penicillium sp. IB-37-2A
3.2.1.165 Tween-80 115% activity at 10 mM Penicillium sp. IB-37-2A
3.2.1.165 Urea 112% activity at 1 mM Penicillium sp. IB-37-2A

Inhibitors

EC Number Inhibitors Comment Organism Structure
3.2.1.165 Ag+ complete inhibition at 1 mM Penicillium sp. IB-37-2A
3.2.1.165 Cu2+ complete inhibition at 10 mM Penicillium sp. IB-37-2A
3.2.1.165 Fe2+ 82.5% residual activity at 10 mM Penicillium sp. IB-37-2A
3.2.1.165 Hg2+ complete inhibition at 1 mM Penicillium sp. IB-37-2A
3.2.1.165 Ni2+ 40.5% residual activity at 10 mM Penicillium sp. IB-37-2A
3.2.1.165 SDS 54% residual activity at 10 mM Penicillium sp. IB-37-2A
3.2.1.165 Urea 90.4% residual activity at 10 mM Penicillium sp. IB-37-2A
3.2.1.165 Zn2+ 36.5% residual activity at 10 mM Penicillium sp. IB-37-2A

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
3.2.1.165 Ca2+ 124% activity at 10 mM Penicillium sp. IB-37-2A
3.2.1.165 Mg2+ 123.3% activity at 1 mM Penicillium sp. IB-37-2A

Organism

EC Number Organism UniProt Comment Textmining
3.2.1.165 Penicillium sp. IB-37-2A
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
3.2.1.165 ultrafiltration, affinity sorption on colloidal chitosan and hydrophobic chromatography on phenyl-Sepharose CL 4B Penicillium sp. IB-37-2A

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
3.2.1.165 0.121
-
culture filtrate, at pH 4.0 and 50°C Penicillium sp. IB-37-2A
3.2.1.165 5.643
-
after 46.6fold purification, at pH 4.0 and 50°C Penicillium sp. IB-37-2A

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.2.1.165 4-nitrophenyl N,N'-diacetyl-beta-D-chitobioside + H2O
-
Penicillium sp. IB-37-2A ?
-
?
3.2.1.165 beta-glucan + H2O 13.6% activity compared to soluble chitosan Penicillium sp. IB-37-2A ?
-
?
3.2.1.165 colloidal chitin + H2O deacetylation degree 80-85%, 6.4% activity compared to soluble chitosan Penicillium sp. IB-37-2A D-glucosamine + ?
-
?
3.2.1.165 glycol chitosan + H2O 631.3% activity compared to soluble chitosan Penicillium sp. IB-37-2A D-glucosamine + ?
-
?
3.2.1.165 laminarin + H2O 21.5% activity compared to soluble chitosan Penicillium sp. IB-37-2A ?
-
?
3.2.1.165 additional information no activity with carboxymethyl cellulose, cellulose, xylan and galactomannan Penicillium sp. IB-37-2A ?
-
?
3.2.1.165 soluble chitosan + H2O deacetylation degree 80-85%, 100% activity Penicillium sp. IB-37-2A D-glucosamine + ?
-
?

Subunits

EC Number Subunits Comment Organism
3.2.1.165 ? x * 41000, SDS-PAGE Penicillium sp. IB-37-2A

Synonyms

EC Number Synonyms Comment Organism
3.2.1.165 beta-GlcNase
-
Penicillium sp. IB-37-2A
3.2.1.165 exo-beta-1.4-glucosaminidase
-
Penicillium sp. IB-37-2A
3.2.1.165 exo-chitosanase
-
Penicillium sp. IB-37-2A

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
3.2.1.165 50 55
-
Penicillium sp. IB-37-2A

Temperature Stability [°C]

EC Number Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
3.2.1.165 55
-
the enzyme demonstrates high temperature stability at 30-55°C and is almost inactive at 65°C Penicillium sp. IB-37-2A

pH Range

EC Number pH Minimum pH Maximum Comment Organism
3.2.1.165 4
-
-
Penicillium sp. IB-37-2A

pH Stability

EC Number pH Stability pH Stability Maximum Comment Organism
3.2.1.165 3 8 the enzyme demonstrates high pH stability at pH 3.0-8.0, and it loses more than 50% of its original activity at pH values above 8.0 Penicillium sp. IB-37-2A

pI Value

EC Number Organism Comment pI Value Maximum pI Value
3.2.1.165 Penicillium sp. IB-37-2A isoelectric focusing
-
4.9