The gene Leucokinin is referred to in FlyBase by the symbol Dmel\Lk (CG13480, FBgn0028418). It is a protein_coding_gene from Drosophila melanogaster. It is reported to have molecular function: hormone activity; neuropeptide hormone activity; diuretic hormone activity. There is experimental evidence that it is involved in the biological process: body fluid secretion. 4 alleles are reported. No phenotypic data is available. It has one annotated transcript and one annotated polypeptide. Summary of modENCODE Temporal Expression Profile: Temporal profile ranges from a peak of moderate expression to a trough of very low expression. Peak expression observed within 18-24 hour embryonic stages, at stages throughout the larval period, at stages throughout the pupal period, in stages of adults of both sexes. Summary of FlyAtlas Anatomical Expression Data: Expression at high levels in the following post-embryonic organs or tissues: adult thoracico-abdominal ganglion. Expression at moderate levels in the following post-embryonic organs or tissues: larval/adult central nervous system. Comments on Affy2 ProbeSet: ProbeSet 1625059_at completely aligns to an exonic region of the only FlyBase-annotated transcript isoform of Leucokinin. Gene sequence location is 3L:14553239..14553864.
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FB2013_03
FB2013_02
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Lk is expressed in three to four neurons in the lateral protocerebrum of larval brains, named as the ALK neurons. Lk is expressed in a second group of neurons called the LHLK cells located on the lateral horn in adults and an equivalent position in larvae. Lk is expressed in the SELK neurons, which are present in group sof two or three pairs in the subesophageal ganglion. Seven pairs of abdominal neurons, called the LK cells, express Lk.
Summary of FlyAtlas Anatomical Expression Data: Expression at high levels in the following post-embryonic organs or tissues: adult thoracico-abdominal ganglion. Expression at moderate levels in the following post-embryonic organs or tissues: larval/adult central nervous system.
[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
393.375
Larval Midgut
2.7
Larval Hindgut
7.8
Larval Malpighian Tubules
4.8
Larval Fat Body
8.7
Larval Salivary Gland
4.9
Larval Trachea
2.95
Larval Carcass
4.475
Adult Head
54.7
Adult Eye
3.85
Adult Brain
165.7
Adult Thoracic-Abdominal Ganglion
1537.5
Adult Crop
8.8
Adult Midgut
18.3
Adult Hindgut
8.1
Adult Malpighian Tubules
6.9
Adult Fat Body
15.7
Adult Salivary Gland
13
Adult Heart
3.025
Adult VirginFemale Spermatheca
15.4
Adult InseminatedFemale Spermatheca
5.3
Adult Ovary
6
Adult Testis
1.8
Adult Male Accessory Gland
11
Adult Carcass
43.8
Expression Level Scale
None
Low
Moderate
High
Very high
Linear, scaled to Moderate expression
Tissue
Expression Level
Larval Central Nervous System
393.375
Larval Midgut
2.7
Larval Hindgut
7.8
Larval Malpighian Tubules
4.8
Larval Fat Body
8.7
Larval Salivary Gland
4.9
Larval Trachea
2.95
Larval Carcass
4.475
Adult Head
54.7
Adult Eye
3.85
Adult Brain
165.7
Adult Thoracic-Abdominal Ganglion
(1537.5)
Adult Crop
8.8
Adult Midgut
18.3
Adult Hindgut
8.1
Adult Malpighian Tubules
6.9
Adult Fat Body
15.7
Adult Salivary Gland
13
Adult Heart
3.025
Adult VirginFemale Spermatheca
15.4
Adult InseminatedFemale Spermatheca
5.3
Adult Ovary
6
Adult Testis
1.8
Adult Male Accessory Gland
11
Adult Carcass
43.8
Expression Level Scale
None
Low
Moderate
High
Linear, scaled to High level expression
Tissue
Expression Level
Larval Central Nervous System
393.375
Larval Midgut
2.7
Larval Hindgut
7.8
Larval Malpighian Tubules
4.8
Larval Fat Body
8.7
Larval Salivary Gland
4.9
Larval Trachea
2.95
Larval Carcass
4.475
Adult Head
54.7
Adult Eye
3.85
Adult Brain
165.7
Adult Thoracic-Abdominal Ganglion
(1537.5)
Adult Crop
8.8
Adult Midgut
18.3
Adult Hindgut
8.1
Adult Malpighian Tubules
6.9
Adult Fat Body
15.7
Adult Salivary Gland
13
Adult Heart
3.025
Adult VirginFemale Spermatheca
15.4
Adult InseminatedFemale Spermatheca
5.3
Adult Ovary
6
Adult Testis
1.8
Adult Male Accessory Gland
11
Adult Carcass
43.8
Expression Level Scale
None
Low
Moderate
High
Very high
Linear, scaled to Very high expression
Tissue
Expression Level
Larval Central Nervous System
393.375
Larval Midgut
2.7
Larval Hindgut
7.8
Larval Malpighian Tubules
4.8
Larval Fat Body
8.7
Larval Salivary Gland
4.9
Larval Trachea
2.95
Larval Carcass
4.475
Adult Head
54.7
Adult Eye
3.85
Adult Brain
165.7
Adult Thoracic-Abdominal Ganglion
1537.5
Adult Crop
8.8
Adult Midgut
18.3
Adult Hindgut
8.1
Adult Malpighian Tubules
6.9
Adult Fat Body
15.7
Adult Salivary Gland
13
Adult Heart
3.025
Adult VirginFemale Spermatheca
15.4
Adult InseminatedFemale Spermatheca
5.3
Adult Ovary
6
Adult Testis
1.8
Adult Male Accessory Gland
11
Adult Carcass
43.8
Expression Level Scale
Very high
log, scaled to maximum expression level
Tissue
Expression Level
Larval Central Nervous System
393.375
Larval Midgut
2.7
Larval Hindgut
7.8
Larval Malpighian Tubules
4.8
Larval Fat Body
8.7
Larval Salivary Gland
4.9
Larval Trachea
2.95
Larval Carcass
4.475
Adult Head
54.7
Adult Eye
3.85
Adult Brain
165.7
Adult Thoracic-Abdominal Ganglion
1537.5
Adult Crop
8.8
Adult Midgut
18.3
Adult Hindgut
8.1
Adult Malpighian Tubules
6.9
Adult Fat Body
15.7
Adult Salivary Gland
13
Adult Heart
3.025
Adult VirginFemale Spermatheca
15.4
Adult InseminatedFemale Spermatheca
5.3
Adult Ovary
6
Adult Testis
1.8
Adult Male Accessory Gland
11
Adult Carcass
43.8
Expression Level Scale
None
Low
Moderate
High
Very high
log, scaled to Moderate expression
Tissue
Expression Level
Larval Central Nervous System
393.375
Larval Midgut
2.7
Larval Hindgut
7.8
Larval Malpighian Tubules
4.8
Larval Fat Body
8.7
Larval Salivary Gland
4.9
Larval Trachea
2.95
Larval Carcass
4.475
Adult Head
54.7
Adult Eye
3.85
Adult Brain
165.7
Adult Thoracic-Abdominal Ganglion
(1537.5)
Adult Crop
8.8
Adult Midgut
18.3
Adult Hindgut
8.1
Adult Malpighian Tubules
6.9
Adult Fat Body
15.7
Adult Salivary Gland
13
Adult Heart
3.025
Adult VirginFemale Spermatheca
15.4
Adult InseminatedFemale Spermatheca
5.3
Adult Ovary
6
Adult Testis
1.8
Adult Male Accessory Gland
11
Adult Carcass
43.8
Expression Level Scale
None
Low
Moderate
High
log, scaled to High level expression
Tissue
Expression Level
Larval Central Nervous System
393.375
Larval Midgut
2.7
Larval Hindgut
7.8
Larval Malpighian Tubules
4.8
Larval Fat Body
8.7
Larval Salivary Gland
4.9
Larval Trachea
2.95
Larval Carcass
4.475
Adult Head
54.7
Adult Eye
3.85
Adult Brain
165.7
Adult Thoracic-Abdominal Ganglion
1537.5
Adult Crop
8.8
Adult Midgut
18.3
Adult Hindgut
8.1
Adult Malpighian Tubules
6.9
Adult Fat Body
15.7
Adult Salivary Gland
13
Adult Heart
3.025
Adult VirginFemale Spermatheca
15.4
Adult InseminatedFemale Spermatheca
5.3
Adult Ovary
6
Adult Testis
1.8
Adult Male Accessory Gland
11
Adult Carcass
43.8
Expression Level Scale
None
Low
Moderate
High
Very high
log, scaled to Very high expression
Tissue
Expression Level
Larval Central Nervous System
393.375
Larval Midgut
2.7
Larval Hindgut
7.8
Larval Malpighian Tubules
4.8
Larval Fat Body
8.7
Larval Salivary Gland
4.9
Larval Trachea
2.95
Larval Carcass
4.475
Adult Head
54.7
Adult Eye
3.85
Adult Brain
165.7
Adult Thoracic-Abdominal Ganglion
1537.5
Adult Crop
8.8
Adult Midgut
18.3
Adult Hindgut
8.1
Adult Malpighian Tubules
6.9
Adult Fat Body
15.7
Adult Salivary Gland
13
Adult Heart
3.025
Adult VirginFemale Spermatheca
15.4
Adult InseminatedFemale Spermatheca
5.3
Adult Ovary
6
Adult Testis
1.8
Adult Male Accessory Gland
11
Adult Carcass
43.8
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 moderate expression to a trough of very low expression. Peak expression observed within 18-24 hour embryonic stages, at stages throughout the larval period, at stages throughout the pupal period, in stages of adults of both sexes.
[download data (TSV)]
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may not be complete
cDNA Clones ( 6 )
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.
Fontana and Crews, 2012, Dev. Biol. 372(1): 131--142
Transcriptome analysis of Drosophila CNS midline cells reveals diverse peptidergic properties and a role for castor in neuronal differentiation. [FBrf0219766]
Cognigni et al., 2011, Cell Metab. 13(1): 92--104
Enteric neurons and systemic signals couple nutritional and reproductive status with intestinal homeostasis. [FBrf0212594]
López-Arias et al., 2011, Peptides 32(3): 545--552
Blockade of the release of the neuropeptide leucokinin to determine its possible functions in fly behavior: Chemoreception assays. [FBrf0213007]