A Database of Drosophila Genes & Genomes

FB2013_03, released May 7th, 2013
 

Dmel\jockey

General Information
Symbol Dmel\jockey Species D.melanogaster
Name jockey element FlyBase ID FBte0000088
Feature type natural transposable element
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Description
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FB2013_03
FB2013_02
All updates Click here to see a list of all updates to this record from FB2010_08 and on.
hide Sequences & Components
Complete element (bp)
to 5kb
 
Terminal repeat (bp)
Reference sequence transposon_sequence_set.embl.txt.gz
Component genes
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hide Sequence Ontology (SO)
Transposon type
hide Insertions & Copy Number
Copy number
and comments
50 (Ilyin)
 
69 in euchromatin of Release 3 genome annotation, of which 12 are full length.
TE copies retrieved from release 5.1 of the D. melanogaster genome.:95
Search for
Target Site Duplication
Size (bp)
10
 
hide Orthologs
Curated drosophilid orthologs
hide Comments
The distribution of structural variation within the jockey elements analysed approximates a negative exponential distribution starting from the 3' end of the element. Insertion site data suggest that jockey element insertion likelihood is not affected by regions of higher or lower than average denaturation temperatures.
Comparison of integrase/transposase domains to new elements containing the DDE signature.
jockey elements are mostly located in euchromatin.
Used in an investigation to address the relationship between retrotransposons and retroviruses and the coadaptation of these retroelements to their host genomes. Results indicate retrotransposons are heterogeneous in contrast to retroviruses, suggesting different modes of evolution by slippage-like mechanisms.
One of a class of genes with TATA-less promoters that have the conserved DPE sequence.
The chromosomal distribution of a number of retrotransposons in an isolated population of D.melanogaster (from Ishigaki Island, Okinawa, Japan) has been determined.
Estimating the genomic numbers of transposable elements demonstrates many families of element are over-represented in heterochromatin.
Element copy numbers on inversion and standard chromosomes has been determined. The copy number is significantly higher within low frequency inversions than within the corresponding standard chromosome regions.
Polymorphism of transposable elements in inbred lines has been examined: P-element, gypsy, jockey, I-element, mdg1, 412, mdg3 and 297 sites are largely stable, whereas roo and copia sites are polymorphic.
Stability of 11 transposable element families compared by Southern blotting among individuals of lines that had been subjected to 30 generations of sister sib matings. 412, roo, blood, 297, 1731 and G-element all appear stable, whereas copia, hobo, I-element, gypsy and jockey elements show instability.
A plasmid containing a minimal jockey promoter has been used in in vitro transcription assays to study TfIIB activity.
The distribution of jockey elements in a number of Drosophila species has been studied. The high degree of similarity between D.melanogaster jockey and Dfun\jockey and the absence of jockey elements from other sibling species of the D.funebris group provide evidence for the horizontal transmission of jockey into D.funebris.
jockey elements are transcribed in tissue culture cells using an internal RNApolII promoter.
The genome contains several jockey elements that are deleted internally.
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hide Synonyms & Secondary IDs ( 20 )
Reported As
Symbol Synonym
BcDNA:AT16518
 
EG:65F1.4
EG:132E8.5
 
ESTS:61B11S
 
HDC15785
 
sancho1
sancho2
wallaby
Name Synonym
jockey element
 
Secondary FlyBase IDs
  • FBgn0000430
  • FBgn0001283
  • FBgn0063730
  • FBtp0011422
  • FBtp0011444
hide References ( 132 )
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hide Recent research papers ( 8 )
Pek et al., 2012, Development 139(24): 4505--4513
Polo-mediated phosphorylation of Maelstrom regulates oocyte determination during oogenesis in Drosophila. [FBrf0220058]
Rincon-Arano et al., 2012, Cell 151(6): 1214--1228
UpSET Recruits HDAC Complexes and Restricts Chromatin Accessibility and Acetylation at Promoter Regions. [FBrf0220189]
Sreesankar et al., 2012, BMC Genomics 13: 255
Functional diversification of yeast telomere associated protein, Rif1, in higher eukaryotes. [FBrf0219090]
Lerat et al., 2011, Gene 473(2): 100--109
Comparative analysis of transposable elements in the melanogaster subgroup sequenced genomes. [FBrf0212990]
Pane et al., 2011, EMBO J. 30(22): 4601--4615
The Cutoff protein regulates piRNA cluster expression and piRNA production in the Drosophila germline. [FBrf0217070]
Petrov et al., 2011, Mol. Biol. Evol. 28(5): 1633--1644
Population genomics of transposable elements in Drosophila melanogaster. [FBrf0214125]
Wang and Elgin, 2011, Proc. Natl. Acad. Sci. U.S.A. 108(52): 21164--21169
Drosophila Piwi functions downstream of piRNA production mediating a chromatin-based transposon silencing mechanism in female germ line. [FBrf0217081]
Zhang et al., 2011, Mol. Cell 44(4): 572--584
Heterotypic piRNA Ping-Pong Requires Qin, a Protein with Both E3 Ligase and Tudor Domains. [FBrf0216809]
hide Recent reviews (0)
All reviews listed in FlyBase were published before 2011