A Database of Drosophila Genes & Genomes

FB2008_07, released August 8, 2008
 

Gene Dmel\Abd-B

General Information
SymbolDmel\Abd-BSpeciesD. melanogaster
NameAbdominal BAnnotation symbolCG11648
Feature typeprotein_coding_geneFlyBase IDFBgn0000015
Created / Updated2003-12-01/2003-12-01
Genomic Location
Chromosome (arm)3RRecombination map3-58.8
Cytogenetic map89E4-89E5Sequence location3R:12,752,932..12,797,958 [-]
Map ( GBrowse ) detailed view
hide Summary Information
Automatically generated summary

See sections below for more information
The gene Abdominal B is referred to in FlyBase by the symbol Abd-B (CG11648, FBgn0000015). It has the cytological map location 89E4-89E5. Its sequence location is 3R:12752932..12797958. Its molecular function is described as: specific RNA polymerase II transcription factor activity; transcription factor activity; sequence-specific DNA binding. It is involved in the biological processes described with 29 unique terms, many of which group under: anatomical structure development; organ development; regulation of developmental process; genital disc development; cell motility; open tracheal system development; development of primary male sexual characteristics; gamete generation; organ morphogenesis; segment specification; gonadal mesoderm development; regulation of metabolic process; anterior/posterior axis specification. 203 alleles are reported. The phenotypes of these alleles are annotated with 132 unique terms, many of which group under: adult segment; adult; organ system; thoracic segment; abdominal ventral denticle belt; blastoderm embryo; peripheral nervous system; spiracle; larval abdominal segment; adult mesothoracic segment. It has 5 annotated transcripts and 5 annotated polypeptides.

External Summaries
hide Phenotypic Description from the Red Book (Lindsley & Zimm 1992)
Gene/Allele symbols may differ from current usage
Abd-B: Abdominal-B (I. Duncan and S. Celniker)
Heterozygotes for null alleles show weak anteriorly-directed transformations of A5, A6, and A7. In the male, this results in the presence of a tiny extra tergite in A7 and a loss of pigmentation on the A5 tergite. Heterozygotes are partially to completely sterile in both sexes, but are fertile if a duplication for the BXC [such as Dp(3;5)P5 or Dp(3;1)P68] is present. Hemizygotes and homozygotes are lethal; embryos lack posterior spiracles and filzkorper, have the ventral setal bands of A6, A7 and A8 transformed toward A5 or A4, and develop rudimentary chitinized plates in posterior A8.
iab5: infra-abdominal 5 (I. Duncan)
Hemizygotes show strong transformation of A5 toward A4, resulting in a loss of black pigment in the A5 tergite of the male. In addition, A6 may be weakly transformed toward A4. When homozygous, iab5301 causes a weak transformation of A3 toward A4 as well as a transformation of A5 to A4.
iab6: infra-abdominal 6 (I. Duncan)
Hemizygotes show strong transformations of both A5 and A6 toward A4. Males show a loss of pigment on the A5 and A6 tergites and show the development of bristles on the A6 sternite. Some alleles cause weak transformations of A4 toward A5.
iab7: infra-abdominal 7 (I. Duncan)
Hemizygotes show strong transformations of A5, A6, and A7 toward A4. In males, the A5 and A6 tergites show a loss of pigmentation and an unpigmented A4-type tergite develops in A7. Both A6 and A7 show the development of sternites with bristles. Heterozygotes show a small A7 tergite in the male. Two gain-of-function alleles recorded. iab7Spth (split thorax) heterozygotes display a longitudinal furrow in the mesothorax; iab7SGA heterozygotes causes abdominal structures to develop in the back of the head (Awad, Gausz, Gyurkovics, and Parducz, 1981, Acta Biol. Acad. Sci. Hung. 32: 219-28; Kuhn and Packert, 1988, Dev. Biol. 125: 8-18).
iab8: infra-abdominal 8 (I. Duncan and S. Celniker)
Hemizygous adult males show strong transformation of A5, A6, A7 toward A4. In addition, an A8 tergite develops which is half the size of a normal tergite. In these males, A5 and A6 tergites show a loss of pigmentation and an unpigmented A4-type tergite develops in A7. A6, A7, and A8 all development sternites, the first two with bristles.
iab9: infra-abdominal 9 (I. Duncan and S. Celniker)
Adult homozygotes or hemizygotes show absent or defective genitalia and analia in both sexes. Adults homozygous or heterozygous for iab965 show in addition a partial transformation of A6 toward A7. Embryos hemizygous for iab9 mutations show the development of a zone of naked cuticle and a rudimentary ninth abdominal setal belt posterior to the eighth abdominal setal belt. Posterior spiracles are absent in iab965 and iab948 hemizygotes and are defective in iab9Uab1, iab9tuh-3, and iab9Tab hemizygotes. iab965 and iab948, but not the other iab9 mutations, cause transformations of the A8 setal belt (located in anterior A8) toward A7.
Mcp: Miscadastral pigmentation (E.B. Lewis)
Mcp homozygotes have the fourth (A4) and fifth (A5) abdominal segments transformed to a state intermediate between A5 and A6. Similar, but weaker, tranformations occur in Mcp/+ heterozygotes. Mcp1 can be scored in males by dark pigmentation of the A4 tergite and in females by an effect on the orientation of the lateral bristles of the A4 tergite.
Sab: Superabdominal (E.B. Lewis)
Sab/+ adults show patchy transformations of A3 and A4 to A5. Homozygote viable and more extreme than heterozygote. Mcp1 Sab1 homozygotes show transformations of A3, A4, and A5 to a state intermediate between A5 and A6.
Tab: Transabdominal (E.B. Lewis)
Heterozygous adults have a pair of laterally disposed longitudinal stripes of tissue on the second thoracic segment (T2) probably corresponding to tissue from the dorsal sixth (A6) and/or seventh (A7) abdominal segments. These ectopic stripes of tissue are entirely black in males but only partially pigmented in females. Tab/+ flies are virtually sterile, and have a thin seventh tergite in males. Fertility is partially restored in the presence of a duplication for BXC, such as Dp(3;1)P68. When hemizygous, Tab embryos have a reduction of the posterior spiracles and filzkorper, and a tiny ninth abdominal ventral setal belt that appears as a small row of denticles posterior to the A8 setal belt.
Mc: Microcephalus
Eyes of heterozygote small or absent. Scutellars curve upward. Viability and fertility good. Homozygote usually more extreme than heterozygote but not reliably distinguishable. ale Mc homozygotes completely eyeless; fertile except when crossed to each other (Golubovsky and Zakarov, 1972, DIS 49: 112). Viability of homozygote varies from 100 down to 40%. RK1A.
hide Detailed Mapping Data
FlyBase Computed Cytological Location
Cytogenetic map
Evidence for location
89E4-89E5  
Limits computationally determined from genome sequence between P{lacW}CSN5L4032 and P{EP}MESK4EP1015  
Experimentally Determined Cytological Location
Cytogenetic map
Notes
References
89E7-89E8
(determined by in situ hybridisation)  
89E1-89E8
(determined by in situ hybridisation)  
89E1-89E2
(determined by in situ hybridisation)  
89E1-89E4
(determined by in situ hybridisation)  
89E-89E
(determined by in situ hybridisation)  
Experimentally Determined Recombination Data
Location
3-58.8
 
Left of (cM)
Right of (cM)
Notes
Abd-B does not map between Sb and Ubx.
Abd-B maps closer to Ubx than to fl.
Molecular Map Data
Gene Order (in direction of increasing cytology)
References
In direction of increasing cytology: Ubx- abd-A- Abd-B-
In direction of increasing cytology: Fas1+ nonA-l+ Cctγ+ CG14906- CG31217- CG31217- Ubx- bxd- Glut3+ abd-A- iab-4+ CG10349+ Abd-B- Actn3- Ahcy89E-
Gene Order (overall orientation not stated)
References
hide Gene Model & Products
Please see the GBrowse view of Dmel\Abd-B for information on other features
detailed view FBtr0083384 FBtr0083383 FBtr0083382 FBtr0083381 FBtr0083385 FBpp0082825 FBpp0089276 FBpp0082824 FBpp0082823 FBpp0082826
Comments on Gene Model
hide Transcript Data
Annotated Transcripts
Name
FlyBase ID
RefSeq ID
Length (nt)
Associated CDS (aa)
FBtr0083382
  3297
  270
FBtr0083384
  4743
  493
FBtr0083381
  3549
  270
FBtr0083383
  3250
  270
FBtr0083385
  3703
  270
Additional Transcript Data & Comments
Reported size (kB)
7.8, 4.7, 4.3, 3.7, 3.3 (northern blot)
Comments
External Data
Crossreferences
hide Polypeptide Data
Annotated Polypeptides
Name
FlyBase ID
Predicted MW (kD)
Length (aa)
Theoretical pI
RefSeq ID
GenBank protein
FBpp0082824  
30.3  
270  
10.04  
FBpp0082826  
55.1  
493  
9.54  
FBpp0082823  
30.3  
270  
10.04  
FBpp0082825  
30.3  
270  
10.04  
FBpp0089276  
30.3  
270  
10.04  
Additional Polypeptide Data & Comments
Reported size (kD)
491 (aa); 54, 36 (kD)
55, 30 (kD)
Comments
Antibodies that recognize both the 272aa and 493aa Abd-B proteins were made as well as an antibody specific to the 493aa form of the protein.
The expression pattern is a composite pattern for the ABD-BI and ABD-BII proteins. The Abd-B protein homeodomain is no more than 55% identical to any other Drosophila homeodomain.
Antibodies that recognize both the 272aa and 493aa Abd-B proteins were made.
The ABD-BI protein corresponds to ABD-BII with a large N-terminal extension; the two proteins contain the same homeodomain. There are two strong transcriptional activation domains in the common part of the two proteins. The ABD-BI-specific exon contains additional transcriptional activation potential, although it is a weaker transcriptional activator than the ABD-BII, apparently due to inhibitory sequences in the ABD-BI-specific exon.
The expression pattern is a composite pattern for the ABD-BI and ABD-BII proteins.
ABD-BI corresponds to ABD-BII with a large N-terminal extension; the two proteins contain the same homeodomain. There are two strong transcriptional activation domains in the common part of the two proteins. The ABD-BI-specific exon contains additional transcriptional activation potential, although it is a weaker transcriptional activator than the ABD-BII, apparently due to inhibitory sequences in the ABD-BI-specific exon.
The antibody reported in this paper recognizes both the Abd-B-m and Abd-B-r proteins.
External Data
Linkouts
PANTHER - Protein classification by function, families, and pathways
Crossreferences
InterPro domains - A database of protein families, domains, and functional sites
TRANSFAC - Eukaryotic transcription factors, their genomic binding sites, and DNA-binding profiles
  • T01476
hide Sequences Consistent with the Gene Model
DDBJ /
EMBL /
GenBank
DNA sequence
Protein sequence
Name
 
 
 
 
 
 
UniProtKB/Swiss-Prot
UniProtKB/TrEMBL
Maps to
Does NOT map to
Identified with
hide Mapped Features & Mutations
Please see GBrowse or insertion reports for information on insertions of transgenic constructs and features not listed here
Type
Symbol & Location
Additional Notes
References
point mutation
comment=Site of nucleotide substitution in mutant inferred by FlyBase based on reported amino acid change. The amino acid substitution to a stop codon produces an Abd-B M protein of 118 amino acids instead of the normal 493.
evidence=experimental
na_change=C12758399T
pr_change=Q119@|Abd-B-PB
reported_pr_change=?119@
hide External Data
Linkouts
DEDB - Drosophila exon database: splicing graphs
Crossreferences
hide Expression Data
FlyBase-Curated Data
Transcript and
Protein data
Please see the FlyBase Gene Expression Report for details of gene expression from the literature.
hide Summary of Transcript Expression
Stage
Tissue/Position
Reference
 larval stage
 embryonic stage | cellular blastoderm
 parasegment 13
 embryonic stage | extended germ band stage
 parasegment 14
 adult stage
 embryonic stage | 4-10 hr
 embryonic stage | 4-7 hr
 embryonic stage | extended germ band stage
 parasegment 14
 embryonic stage | 4-7 hr
 embryonic stage | late
 parasegment 14 <of> embryonic central nervous system
 embryonic stage | 10-13 hr
 embryonic stage | late
 parasegment 14 <of> embryonic central nervous system
 embryonic stage | late
 embryonic stage | cellular blastoderm
 parasegment 13
 embryonic stage | late
 embryonic stage | late
 epidermis <of> abdominal segment 9
 embryonic stage
 parasegment 10..14
 embryonic stage | late
 parasegment 11..13 <of> embryonic central nervous system
 embryonic stage | late
 parasegment 14 <of> epidermis
 embryonic stage | extended germ band stage
 parasegment 14
 embryonic stage | cellular blastoderm
 parasegment 14
 embryonic stage
 parasegment 10..14
 larval stage
 embryonic stage | late
 parasegment 11..13 <of> embryonic central nervous system
 embryonic stage | 10-13 hr
 embryonic stage | late
 epidermis <of> abdominal segment 9
 pupal stage
 embryonic stage
 embryonic stage | late
 parasegment 14 <of> embryonic central nervous system
 adult stage
 pupal stage
Marker for
    Subcellular Localization
    CV Term
    hide Summary of Polypeptide Expression
    Stage
    Tissue/Position
    Reference
     embryonic stage | mid-late
     proctodeum
     embryonic stage | mid-late
     parasegment 13..15 <of> ectoderm
     embryonic stage | mid-late
     parasegment 13..15 <of> ectoderm
     embryonic stage | stage 13
     ectoderm <of> parasegment 10-13
     embryonic stage | mid-late
     visceral mesoderm
     embryonic stage | stage 12
     parasegment 11-14
     embryonic stage
     embryonic stage | mid-late
     parasegment 11..15 <of> mesoderm
     embryonic stage | stage 12
     parasegment 10-14
     embryonic stage | mid-late
     Malpighian tubule
     larval stage | third instar
     male genital disc | restricted
     embryonic stage | mid-late
     Malpighian tubule
     larval stage | third instar
     female genital disc | restricted
     embryonic stage
     embryonic stage | stage 12
     parasegment 13
     embryonic stage | mid-late
     parasegment 12..14 <of> embryonic central nervous system | presumptive
     embryonic stage | stage 13-14
     visceral mesoderm <of> embryonic/larval hindgut <of>parasegment 13-15
     embryonic stage | stage 11-13
     parasegment 11-15
     embryonic stage | stage 11
     visceral mesoderm <of> parasegment 11-14
     embryonic stage | late
     embryonic stage | stage >=12
     parasegment 14
     embryonic stage | stage 10
     parasegment 13-15
     larval stage
     larval fat body | posterior
     embryonic stage | stage 13-14
     visceral mesoderm <of> embryonic/larval midgut <of>parasegment 11-13
     embryonic stage | mid-late
     embryonic stage | stage >12
     parasegment 11..13
     embryonic stage | mid-late
     embryonic stage | mid-late
     visceral mesoderm
     embryonic stage | mid-late
     parasegment 12..14 <of> embryonic central nervous system | presumptive
     embryonic stage
     central nervous system
     embryonic stage | mid-late
     proctodeum
     embryonic stage | mid-late
     parasegment 11..15 <of> mesoderm
     embryonic stage
     central nervous system
    Marker for
      Subcellular Localization
      CV Term
      hide External Data & Images
      Linkouts
      FLIGHT - Cell culture data for RNAi and other high-throughput technologies
      GEO (NCBI) - Gene expression data: microarray and other high-throughput technologies
      FlyExpress - Embryonic expression images (BDGP data)
      hide Alleles & Phenotypes
      hide Summary of Allele Phenotypes
      Lethality
      Allele
      Other Phenotypes
      Allele