The gene Glucose dehydrogenase is referred to in FlyBase by the symbol Dmel\Gld (CG1152, FBgn0001112). It is a protein_coding_gene from Drosophila melanogaster. It is reported to have molecular function: glucose dehydrogenase activity. There is experimental evidence that it is involved in the biological process: sperm storage. 21 alleles are reported. No phenotypic data is available. It has one annotated transcript and one annotated polypeptide. Protein features are: Glucose-methanol-choline oxidoreductase; Glucose-methanol-choline oxidoreductase, C-terminal; Glucose-methanol-choline oxidoreductase, N-terminal. Summary of modENCODE Temporal Expression Profile: Temporal profile ranges from a peak of high expression to a trough of extremely low expression. Peak expression observed during late pupal stages. Summary of FlyAtlas Anatomical Expression Data: Expression at high levels in the following post-embryonic organs or tissues: adult crop, larval carcass. Expression at moderate levels in the following post-embryonic organs or tissues: adult head, larval/adult hindgut, larval trachea, adult male accessory gland. Comments on Affy2 ProbeSet: ProbeSet 1626984_at completely aligns to an exonic region of the only FlyBase-annotated transcript isoform of Gld. Gene sequence location is 3R:3077785..3091425.
User Contributed Data
Phenotypic Description from the Red Book (Lindsley
& Zimm 1992)
Gene/Allele symbols may differ
from current usage
Gld: Glucose dehydrogenase
The structural gene for FAD glucose dehydrogenase
[GLD (EC1.1.99.10)]. The formation of a hybrid band in
GldF/GldS heterozygotes indicates a dimeric enzyme. Molecular
weight given as 110,000 daltons. Gene expressed during pupal
stages of both sexes; enzyme found in pupal stage 3-4 moulting
fluid where it modifies puparium cuticle. Gld also expressed
in the ejaculatory duct of males; genital disc transplantation
experiments indicate that GLD expression in ejaculatory duct
is autonomous (Cavener); enzyme transferred from males to
females during copulation. Lethality of null alleles in the
pupal stage observed; Gldn flies can be rescued by pre-eclosion excision of pupal operculum.
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Gld transcript levels increase upon treatment with an exogenous source of ecdysterone. This can be reversed in ecd1 larvae, no increase in Gld mRNA levels is seen. Ecdysterone-responsiveness competence is gained by Gld during the third instar. Premature exposure of wild type mid-third instar larvae to ecdysterone results in the rapid accumulation of Gld transcripts.
The level of Gld transcripts rises 3- to 4-fold in late third instar larvae then declines rapidly. Transcripts are abundant in pupal stages 6-13 and in adult males. The larval transcript is found only in the integument and the male transcript is localized predominantly in the ejaculatory ducts.
Gld enzyme activity increases upon treatment with an exogenous source of ecdysterone. This can be reversed in ecd1 larvae, no increase in Gld enzyme activity is seen.
Summary of FlyAtlas Anatomical Expression Data: Expression at high levels in the following post-embryonic organs or tissues: adult crop, larval carcass. Expression at moderate levels in the following post-embryonic organs or tissues: adult head, larval/adult hindgut, larval trachea, adult male accessory gland.
[download data (TSV)]
Guide to FlyAtlas expression level colors
No expression (0 - 9.999)
Low expression (10 - 99.999)
Moderate expression (100 - 499.999)
High level expression (500 - 999.999)
Very high expression (>999.999)
Linear, scaled to maximum expression level
Tissue
Expression Level
Larval Central Nervous System
10.15
Larval Midgut
3.6
Larval Hindgut
475
Larval Malpighian Tubules
2.2
Larval Fat Body
4
Larval Salivary Gland
52.8
Larval Trachea
100.05
Larval Carcass
1212.8
Adult Head
166.5
Adult Eye
8.3
Adult Brain
6.8
Adult Thoracic-Abdominal Ganglion
5.7
Adult Crop
582.2
Adult Midgut
1.9
Adult Hindgut
182.1
Adult Malpighian Tubules
2.5
Adult Fat Body
4.7
Adult Salivary Gland
2.9
Adult Heart
6.175
Adult VirginFemale Spermatheca
0.9
Adult InseminatedFemale Spermatheca
2.8
Adult Ovary
0.4
Adult Testis
16
Adult Male Accessory Gland
371.3
Adult Carcass
84.7
Expression Level Scale
None
Low
Moderate
High
Very high
Linear, scaled to Moderate expression
Tissue
Expression Level
Larval Central Nervous System
10.15
Larval Midgut
3.6
Larval Hindgut
475
Larval Malpighian Tubules
2.2
Larval Fat Body
4
Larval Salivary Gland
52.8
Larval Trachea
100.05
Larval Carcass
(1212.8)
Adult Head
166.5
Adult Eye
8.3
Adult Brain
6.8
Adult Thoracic-Abdominal Ganglion
5.7
Adult Crop
(582.2)
Adult Midgut
1.9
Adult Hindgut
182.1
Adult Malpighian Tubules
2.5
Adult Fat Body
4.7
Adult Salivary Gland
2.9
Adult Heart
6.175
Adult VirginFemale Spermatheca
0.9
Adult InseminatedFemale Spermatheca
2.8
Adult Ovary
0.4
Adult Testis
16
Adult Male Accessory Gland
371.3
Adult Carcass
84.7
Expression Level Scale
None
Low
Moderate
High
Linear, scaled to High level expression
Tissue
Expression Level
Larval Central Nervous System
10.15
Larval Midgut
3.6
Larval Hindgut
475
Larval Malpighian Tubules
2.2
Larval Fat Body
4
Larval Salivary Gland
52.8
Larval Trachea
100.05
Larval Carcass
(1212.8)
Adult Head
166.5
Adult Eye
8.3
Adult Brain
6.8
Adult Thoracic-Abdominal Ganglion
5.7
Adult Crop
582.2
Adult Midgut
1.9
Adult Hindgut
182.1
Adult Malpighian Tubules
2.5
Adult Fat Body
4.7
Adult Salivary Gland
2.9
Adult Heart
6.175
Adult VirginFemale Spermatheca
0.9
Adult InseminatedFemale Spermatheca
2.8
Adult Ovary
0.4
Adult Testis
16
Adult Male Accessory Gland
371.3
Adult Carcass
84.7
Expression Level Scale
None
Low
Moderate
High
Very high
Linear, scaled to Very high expression
Tissue
Expression Level
Larval Central Nervous System
10.15
Larval Midgut
3.6
Larval Hindgut
475
Larval Malpighian Tubules
2.2
Larval Fat Body
4
Larval Salivary Gland
52.8
Larval Trachea
100.05
Larval Carcass
1212.8
Adult Head
166.5
Adult Eye
8.3
Adult Brain
6.8
Adult Thoracic-Abdominal Ganglion
5.7
Adult Crop
582.2
Adult Midgut
1.9
Adult Hindgut
182.1
Adult Malpighian Tubules
2.5
Adult Fat Body
4.7
Adult Salivary Gland
2.9
Adult Heart
6.175
Adult VirginFemale Spermatheca
0.9
Adult InseminatedFemale Spermatheca
2.8
Adult Ovary
0.4
Adult Testis
16
Adult Male Accessory Gland
371.3
Adult Carcass
84.7
Expression Level Scale
Very high
log, scaled to maximum expression level
Tissue
Expression Level
Larval Central Nervous System
10.15
Larval Midgut
3.6
Larval Hindgut
475
Larval Malpighian Tubules
2.2
Larval Fat Body
4
Larval Salivary Gland
52.8
Larval Trachea
100.05
Larval Carcass
1212.8
Adult Head
166.5
Adult Eye
8.3
Adult Brain
6.8
Adult Thoracic-Abdominal Ganglion
5.7
Adult Crop
582.2
Adult Midgut
1.9
Adult Hindgut
182.1
Adult Malpighian Tubules
2.5
Adult Fat Body
4.7
Adult Salivary Gland
2.9
Adult Heart
6.175
Adult VirginFemale Spermatheca
0.9
Adult InseminatedFemale Spermatheca
2.8
Adult Ovary
0.4
Adult Testis
16
Adult Male Accessory Gland
371.3
Adult Carcass
84.7
Expression Level Scale
None
Low
Moderate
High
Very high
log, scaled to Moderate expression
Tissue
Expression Level
Larval Central Nervous System
10.15
Larval Midgut
3.6
Larval Hindgut
475
Larval Malpighian Tubules
2.2
Larval Fat Body
4
Larval Salivary Gland
52.8
Larval Trachea
100.05
Larval Carcass
(1212.8)
Adult Head
166.5
Adult Eye
8.3
Adult Brain
6.8
Adult Thoracic-Abdominal Ganglion
5.7
Adult Crop
582.2
Adult Midgut
1.9
Adult Hindgut
182.1
Adult Malpighian Tubules
2.5
Adult Fat Body
4.7
Adult Salivary Gland
2.9
Adult Heart
6.175
Adult VirginFemale Spermatheca
0.9
Adult InseminatedFemale Spermatheca
2.8
Adult Ovary
0.4
Adult Testis
16
Adult Male Accessory Gland
371.3
Adult Carcass
84.7
Expression Level Scale
None
Low
Moderate
High
log, scaled to High level expression
Tissue
Expression Level
Larval Central Nervous System
10.15
Larval Midgut
3.6
Larval Hindgut
475
Larval Malpighian Tubules
2.2
Larval Fat Body
4
Larval Salivary Gland
52.8
Larval Trachea
100.05
Larval Carcass
1212.8
Adult Head
166.5
Adult Eye
8.3
Adult Brain
6.8
Adult Thoracic-Abdominal Ganglion
5.7
Adult Crop
582.2
Adult Midgut
1.9
Adult Hindgut
182.1
Adult Malpighian Tubules
2.5
Adult Fat Body
4.7
Adult Salivary Gland
2.9
Adult Heart
6.175
Adult VirginFemale Spermatheca
0.9
Adult InseminatedFemale Spermatheca
2.8
Adult Ovary
0.4
Adult Testis
16
Adult Male Accessory Gland
371.3
Adult Carcass
84.7
Expression Level Scale
None
Low
Moderate
High
Very high
log, scaled to Very high expression
Tissue
Expression Level
Larval Central Nervous System
10.15
Larval Midgut
3.6
Larval Hindgut
475
Larval Malpighian Tubules
2.2
Larval Fat Body
4
Larval Salivary Gland
52.8
Larval Trachea
100.05
Larval Carcass
1212.8
Adult Head
166.5
Adult Eye
8.3
Adult Brain
6.8
Adult Thoracic-Abdominal Ganglion
5.7
Adult Crop
582.2
Adult Midgut
1.9
Adult Hindgut
182.1
Adult Malpighian Tubules
2.5
Adult Fat Body
4.7
Adult Salivary Gland
2.9
Adult Heart
6.175
Adult VirginFemale Spermatheca
0.9
Adult InseminatedFemale Spermatheca
2.8
Adult Ovary
0.4
Adult Testis
16
Adult Male Accessory Gland
371.3
Adult Carcass
84.7
Expression Level Scale
None
Low
Moderate
High
Very high
Heatmap
Tissue
Expression Level
Larval Central Nervous System
Larval Midgut
Larval Hindgut
Larval Malpighian Tubules
Larval Fat Body
Larval Salivary Gland
Larval Trachea
Larval Carcass
Adult Head
Adult Eye
Adult Brain
Adult Thoracic-Abdominal Ganglion
Adult Crop
Adult Midgut
Adult Hindgut
Adult Malpighian Tubules
Adult Fat Body
Adult Salivary Gland
Adult Heart
Adult VirginFemale Spermatheca
Adult InseminatedFemale Spermatheca
Adult Ovary
Adult Testis
Adult Male Accessory Gland
Adult Carcass
FlyAtlas Organ/Tissue Expression, larval vs. adult
Summary of modENCODE Temporal Expression Profile: Temporal profile ranges from a peak of high expression to a trough of extremely low expression. Peak expression observed during late pupal stages.
[download data (TSV)]
Please Note FlyBase no
longer curates genomic clone accessions so this list
may not be complete
cDNA Clones ( 35 )
Please Note
This section lists
cDNAs and ESTs that fall within the genomic extent
of the gene model, which may include cDNAs and ESTs
of genes within introns, or of overlapping genes.
Please see GBrowse for alignment of the cDNAs and ESTs
to the gene model.
Ecol\lacZ reporter gene constructs have identified an SREC (Somatic Reproductive Organ Enhancer Complex) in Gld intron 1 (+639 to +3906 nucleotides). A 361 nucleotide region of the SREC is involved in ejaculatory duct/oviduct-specific expression in both the developing and mature reproductive tract.
Site directed mutagenesis and transgenic analysis demonstrates that the palindrome in the Gld promoter region is both necessary and sufficient for expression in the anterior spiracular gland whereas the palindromic sequence is sufficient for expression in the ejaculatory bulb.
Enzyme transferred from males to females during copulation. Lethality of null alleles in the pupal stage observed; Gld null flies can be rescued by pre-eclosion excision of pupal operculum.
The structural gene for FAD glucose dehydrogenase (GLD). The formation of a hybrid band in GldF/GldS heterozygotes indicates a dimeric enzyme. Molecular weight given as 110,000 daltons.
Interspecific P-element-mediated gene transformation is used to assess possible cis- and trans-genetic differences in the expression of Gld and Dpse\Gld. Interspecific variation in adult Gld expression pattern is studied.
D.melanogasterGld, Dpse\Gld and Dvir\Gld have been cloned and sequenced and compared with each other. The exon/intron structure is conserved in the three species.
Gld has been precisely mapped and sequenced and the 17.5kb restriction fragment containing the Gld transcription unit was able to rescue the Gld mutant phenotype via P element mediated transformation.