Orpinomyces cellulase celf protein and coding sequences
Patent
·
OSTI ID:873216
- Athens, GA
A cDNA (1,520 bp), designated celF, consisting of an open reading frame (ORF) encoding a polypeptide (CelF) of 432 amino acids was isolated from a cDNA library of the anaerobic rumen fungus Orpinomyces PC-2 constructed in Escherichia coli. Analysis of the deduced amino acid sequence showed that starting from the N-terminus, CelF consists of a signal peptide, a cellulose binding domain (CBD) followed by an extremely Asn-rich linker region which separate the CBD and the catalytic domains. The latter is located at the C-terminus. The catalytic domain of CelF is highly homologous to CelA and CelC of Orpinomyces PC-2, to CelA of Neocallimastix patriciarum and also to cellobiohydrolase IIs (CBHIIs) from aerobic fungi. However, Like CelA of Neocallimastix patriciarum, CelF does not have the noncatalytic repeated peptide domain (NCRPD) found in CelA and CelC from the same organism. The recombinant protein CelF hydrolyzes cellooligosaccharides in the pattern of CBHII, yielding only cellobiose as product with cellotetraose as the substrate. The genomic celF is interrupted by a 111 bp intron, located within the region coding for the CBD. The intron of the celF has features in common with genes from aerobic filamentous fungi.
- Research Organization:
- University of Georgia
- DOE Contract Number:
- FG05-93ER20127
- Assignee:
- University of Georgia Research Foundation, Inc. (Athens, GA)
- Patent Number(s):
- US 6114158
- Application Number:
- 09/118319
- OSTI ID:
- 873216
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
/435/999/
111
432
520
acid
acid sequence
acids
aerobic
amino
amino acid
amino acids
anaerobic
analysis
asn-rich
binding
binding domain
bp
c-terminus
catalytic
catalytic domain
cbd
cbhii
cbhiis
cdna
cdna library
cela
celc
celf
cellobiohydrolase
cellobiose
cellooligosaccharides
cellotetraose
cellulase
cellulose
cellulose binding
coding
coding sequence
coding sequences
coli
common
consisting
consists
constructed
deduced
deduced amino
designated
domain
domains
encoding
escherichia
escherichia coli
extremely
features
filamentous
followed
found
frame
fungi
fungus
genes
genomic
highly
highly homologous
homologous
hydrolyzes
iis
interrupted
intron
isolated
latter
library
linker
located
n-terminus
ncrpd
neocallimastix
noncatalytic
orf
organism
orpinomyces
orpinomyces cellulase
orpinomyces pc-2
patriciarum
pattern
pc-2
peptide
polypeptide
product
protein
reading
reading frame
recombinant
recombinant protein
region
repeated
rumen
separate
sequence
sequences
signal
starting
substrate
yielding
111
432
520
acid
acid sequence
acids
aerobic
amino
amino acid
amino acids
anaerobic
analysis
asn-rich
binding
binding domain
bp
c-terminus
catalytic
catalytic domain
cbd
cbhii
cbhiis
cdna
cdna library
cela
celc
celf
cellobiohydrolase
cellobiose
cellooligosaccharides
cellotetraose
cellulase
cellulose
cellulose binding
coding
coding sequence
coding sequences
coli
common
consisting
consists
constructed
deduced
deduced amino
designated
domain
domains
encoding
escherichia
escherichia coli
extremely
features
filamentous
followed
found
frame
fungi
fungus
genes
genomic
highly
highly homologous
homologous
hydrolyzes
iis
interrupted
intron
isolated
latter
library
linker
located
n-terminus
ncrpd
neocallimastix
noncatalytic
orf
organism
orpinomyces
orpinomyces cellulase
orpinomyces pc-2
patriciarum
pattern
pc-2
peptide
polypeptide
product
protein
reading
reading frame
recombinant
recombinant protein
region
repeated
rumen
separate
sequence
sequences
signal
starting
substrate
yielding