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

BRENDA support

Literature summary for 3.2.1.8 extracted from

  • Dutta, T.; Sengupta, R.; Sahoo, R.; Sinha Ray, S.; Bhattacharjee, A.; Ghosh, S.
    A novel cellulase free alkaliphilic xylanase from alkali tolerant Penicillium citrinum: production, purification and characterization (2007), Lett. Appl. Microbiol., 44, 206-211.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
2-mercaptoethanol
-
Penicillium citrinum
dithiothreitol
-
Penicillium citrinum
NaCl
-
Penicillium citrinum
SDS
-
Penicillium citrinum
Triton X 100
-
Penicillium citrinum
Tween 20
-
Penicillium citrinum
Urea
-
Penicillium citrinum

Application

Application Comment Organism
industry used for pulp bleaching Penicillium citrinum
paper production used for paper bleaching Penicillium citrinum

Inhibitors

Inhibitors Comment Organism Structure
Cu2+ slight inhibition at 3 or 6 mM Penicillium citrinum
Fe3+ slight inhibition at 3 or 6 mM Penicillium citrinum
Hg2+ strong inhibitory effect Penicillium citrinum
Mg2+ slight inhibition at 3 or 6 mM Penicillium citrinum
Mn2+ strong inhibitory effect Penicillium citrinum
additional information EDTA, Ca2+ and Ni2+ do not show any effect on xylanase activity Penicillium citrinum
Zn2+ slight inhibition at 3 or 6 mM Penicillium citrinum

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
22000
-
analytical gel filtration Penicillium citrinum
25000
-
SDS-PAGE Penicillium citrinum

Organism

Organism UniProt Comment Textmining
Penicillium citrinum
-
-
-
Penicillium citrinum MTCC 6489
-
-
-

Purification (Commentary)

Purification (Comment) Organism
Phenyl Sepharose chromatography and Superdex-200 HR Superdex-200 gel filtration Penicillium citrinum

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
25.4
-
from crude cell extract Penicillium citrinum
360.7
-
after 14.2fold purification Penicillium citrinum

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
birchwood xylan + H2O
-
Penicillium citrinum xylose + ?
-
?
birchwood xylan + H2O
-
Penicillium citrinum MTCC 6489 xylose + ?
-
?

Synonyms

Synonyms Comment Organism
xylanase
-
Penicillium citrinum

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
50
-
at both pH 3.5 and pH 8.5 Penicillium citrinum

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
-
50 the retention of 50% of its maximum activity is observed at 0°C, retains 65% of its activity after 1-4 h incubation at 50°C Penicillium citrinum

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8.5
-
-
Penicillium citrinum

pH Stability

pH Stability pH Stability Maximum Comment Organism
4 10
-
Penicillium citrinum

pI Value

Organism Comment pI Value Maximum pI Value
Penicillium citrinum isoelectric focusing
-
3.6