FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Sequence Feature: Dmel\Dmel:r6:2L:199575:199637:+
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General Information
Symbol
Dmel\Dmel:r6:2L:199575:199637:+
Species
D. melanogaster
Feature type
FlyBase ID
FBsf0000124106
Genomic Location
Chromosome (arm)
2L
Sequence location

2L:199,575..199,637 [+]

Genomic Maps
Sequence Data
Length
Comments

GT..AG

Associated Information
Gene(s) (targeted or local)
Allele(s)
    Transcripts(s)
      Polypeptide(s)
        Construct
          Experimental Data
          RNA-Seq Read Counts
          Dataset: BCM_1_RNAseq_junctions
          Expression stage(s)
          Read Count
          embryonic stage 4 -- 9

          Comment: 2-4 hr, rep1, 75nt reads

          12
          embryonic stage 4 -- 16

          Comment: 2-16 hr, rep1, 75nt reads

          3
          embryonic stage 4 -- 16

          Comment: 2-16 hr, rep2, 100nt reads

          2
          embryonic stage 16

          Comment: 14-16 hr, rep1, 75nt reads

          6
          second instar larval stage -- third instar larval stage

          Comment: 48 to 120 hrs post egg-lay, rep1, 75nt reads

          16
          late third instar larval stage

          Comment: wandering, rep1, 75nt reads

          20
          late third instar larval stage

          Comment: wandering, rep2, 100nt reads

          5
          pupal stage

          Comment: aged 1 to 5 days after collection as third instar larvae, rep1, 75nt reads

          21
          pupal stage P6 -- pharate adult stage P10

          Comment: aged 72 hrs after collection as third instar larvae, rep1, 75nt reads

          21
          adult stage

          Comment: aged 17 days post-eclosion, rep1, 75nt reads

          45
          adult stage | female

          Comment: aged 2-3 days post-eclosion, rep1, 75nt reads

          41
          adult stage | male

          Comment: aged 2-3 days post-eclosion, rep1, 75nt reads

          15

          Total
          207
          Dataset: modENCODE_mRNA-Seq_U_junctions
          Expression stage(s)
          Read Count
          embryonic stage 1 -- 4

          Comment: 0-2 hr AEL

          192
          embryonic stage 4 -- 9

          Comment: 2-4 hr AEL

          290
          embryonic stage 9 -- 11

          Comment: 4-6 hr AEL

          444
          embryonic stage 11 -- 12

          Comment: 6-8 hr AEL

          385
          embryonic stage 12 -- 13

          Comment: 8-10 hr AEL

          308
          embryonic stage 13 -- 15

          Comment: 10-12 hr AEL

          89
          embryonic stage 15 -- 16

          Comment: 12-14 hr AEL

          328
          embryonic stage 16

          Comment: 14-16 hr AEL

          214
          embryonic stage 17(i)

          Comment: 16-18 hr AEL

          252
          embryonic stage 17(ii)

          Comment: 18-20 hr AEL

          231
          embryonic stage 17(iii)

          Comment: 20-22 hr AEL

          210
          embryonic stage 17(iv)

          Comment: 22-24 hr AEL

          266
          first instar larval stage

          Comment: 42-44hr AEL

          182
          second instar larval stage

          Comment: 66-70h AEL

          110
          40
          third instar - uncleared gut stage

          Comment: indicated as puff stage 1-2

          28
          third instar - partially cleared gut stage

          Comment: indicated as puff stage 3-6

          95
          third instar - cleared gut stage

          Comment: indicated as puff stage 7-9

          121
          pupal stage P5

          Comment: aged 12 hrs after collection as white prepupae

          220
          pupal stage P6

          Comment: aged 24 hrs after collection as white prepupae

          290
          pharate adult stage P8

          Comment: aged 2 days after collection as white prepupae

          264
          pharate adult stage P9 -- P10

          Comment: aged 3 days after collection as white prepupae

          153
          pharate adult stage P15

          Comment: aged 4 days after collection as white prepupae

          100
          day 1 of adulthood | female

          Comment: aged 1 day after eclosion

          123
          day 1 of adulthood | male

          Comment: aged 1 day after eclosion

          122
          day 5 of adulthood | female

          Comment: aged 5 days after eclosion

          186
          day 5 of adulthood | male

          Comment: aged 5 days after eclosion

          146
          day 30 of adulthood | female

          Comment: aged 30 days after eclosion

          163
          day 30 of adulthood | male

          Comment: aged 30 days after eclosion

          138

          Total
          5914
          Collection Information
          Collection: modENCODE_mRNA-Seq_U_junctions
          Title
          Exon junction identification from RNA-Seq assays of D. melanogaster, iso-1 strain, 30 developmental stages.
          Source and Progenitors
          Species of derivation
          D. melanogaster
          Strain of derivation
          Stage
          Tissue/Position (including subcellular localization)
          Reference
          organism

          Comment: aged 12 hrs after collection as white prepupae

          organism

          Comment: aged 24 hrs after collection as white prepupae

          organism

          Comment: aged 2 days after collection as white prepupae

          organism

          Comment: aged 3 days after collection as white prepupae

          organism

          Comment: aged 4 days after collection as white prepupae

          organism

          Comment: aged 1 day after eclosion

          organism

          Comment: aged 1 day after eclosion

          organism

          Comment: aged 5 days after eclosion

          organism

          Comment: aged 5 days after eclosion

          organism

          Comment: aged 30 days after eclosion

          organism

          Comment: aged 30 days after eclosion

          Vector of progenitor construct
          Description

          Umbrella record for 30 collections that differ by developmental stage, from 0-2-hr embryos to 30-day adults. Consists of 76-nt single-end and paired-end reads; RNA junctions identified and characterized (presented in GBrowse and in RNA junction reports). Restricted to uniquely aligned reads.

          Additional data
          Sample preparation
          Collection preparation
          Mode of assay
          Data analysis

          RNA-Seq reads were aligned to databases of predicted splice junctions and to gene models using TopHat, STAR and BLAT. A number of criteria were used to distinguish true splice junctions from false positives. First, only reads with a minimum of 6nt overhang across a junction were considered. Second, an entropy score (which reflects the number of offset reads) was calculated for each splice junction, and only junctions with entropy score >2 in at least two biological samples were considered. The set of junctions was filtered further to exclude junctions when intron length less than 41 nt, junctions that join parologous genes and non-canonical splice junctions not supported by other experimental support.

          Cell lines
          Observed in
          Not observed in
          Collection: BCM_1_RNAseq_junctions
          Title
          Exon junction identification from RNA-Seq assays of D. melanogaster, Canton-S strain, 10 developmental stages.
          Source and Progenitors
          Species of derivation
          D. melanogaster
          Strain of derivation
          Stage
          Tissue/Position (including subcellular localization)
          Reference
          organism

          Comment: 2-4 hr, rep1, 75nt reads

          organism

          Comment: 2-16 hr, rep1, 75nt reads

          2-16 hr, rep2, 100nt reads

          organism

          Comment: 14-16 hr, rep1, 75nt reads

          organism

          Comment: 48 to 120 hrs post egg-lay, rep1, 75nt reads

          organism

          Comment: wandering, rep1, 75nt reads

          wandering, rep2, 100nt reads

          organism

          Comment: aged 1 to 5 days after collection as third instar larvae, rep1, 75nt reads

          organism

          Comment: aged 72 hrs after collection as third instar larvae, rep1, 75nt reads

          organism

          Comment: aged 2-3 days post-eclosion, rep1, 75nt reads

          organism

          Comment: aged 2-3 days post-eclosion, rep1, 75nt reads

          organism

          Comment: aged 17 days post-eclosion, rep1, 75nt reads

          Vector of progenitor construct
          Description

          Umbrella record for 12 collections that differ by developmental stage, from embryos to aged adults. RNA junctions identified and characterized (presented in GBrowse and in RNA junction reports).

          Additional data
          Sample preparation
          Collection preparation
          Mode of assay
          Data analysis
          Cell lines
          Observed in
          Not observed in
          Comments

          Matches FlyBase Annotated Junction.

          Stocks (0)
          External Crossreferences and Linkouts ( 0 )
          Synonyms and Secondary IDs (4)
          Reported As
          Symbol Synonym
          2L:199575-199636
          Dmel:r5:2L:199575:199637:+
          Dmel:r6:2L:199575:199637:+
          chr2L_199576_199636
          Secondary FlyBase IDs
            References (4)