Atr-I, AtrI, Atr45A, Activin A receptor 45A, l(2)k16912
transmembrane protein - Type 1 activin-A-receptor for ligands Dawdle, Activin-β and Myoglianin - essential for proper pupation and adult viability - alternatively spliced into isoforms that differ only in their extracellular domain likely resulting in different ligand binding specificity
Please see the JBrowse view of Dmel\babo for information on other features
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AlphaFold produces a per-residue confidence score (pLDDT) between 0 and 100. Some regions with low pLDDT may be unstructured in isolation.
Low-frequency RNA-Seq exon junction(s) not annotated.
Gene model reviewed during 5.49
None of the polypeptides share 100% sequence identity.
622, 601 (aa)
babo protein activates TGF-β/Activin response elements, but not BMP response elements, in in vitro assays. Activated babo protein phosphorylates the C-terminal SSXS motif of Smox protein. Med and Smox proteins form some complexes in the absence of activated babo protein, but the level of complex formation increases significantly in the presence of the activated babo protein. Smox protein also interacts transiently with putFBtr0091350:pb-XRbabo protein complexes.
Interacts with put; forms a heteromeric receptor complex that can bind the activin-type ligand Actbeta (PubMed:8289834). As part of the babo-put complex associates with Smox/SMAD2; dissociates upon phosphorylation of Smox (PubMed:10320478, PubMed:9887103).
Click to get a list of regulatory features (enhancers, TFBS, etc.) and gene disruptions (point mutations, indels, etc.) within or overlapping Dmel\babo using the Feature Mapper tool.
The testis specificity index was calculated from modENCODE tissue expression data by Vedelek et al., 2018 to indicate the degree of testis enrichment compared to other tissues. Scores range from -2.52 (underrepresented) to 5.2 (very high testis bias).
Comment: reference states 0-3 hr AEL
Comment: isoform-specific expression
Comment: isoform-specific expression
Comment: isoform-specific expression
Comment: isoform-specific expression
Isoform-specific expression for three splice variants of babo was demonstrated. One isoform is detected in brain and wing disc, one is detected predominantly in wing disc, and the third isoform is detected in fat body and gut but not brain or wing disc.
The 3.6 and 4.0 kb babo transcripts are found in 0-3 hr embryos, and in adult females.
The 4.9 kb babo transcript is expressed throughout development.
JBrowse - Visual display of RNA-Seq signals
View Dmel\babo in JBrowse2-59
2-58.0
Please Note FlyBase no longer curates genomic clone accessions so this list may not be complete
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 JBrowse for alignment of the cDNAs and ESTs to the gene model.
For each fully sequenced cDNA the DGRC maintains various forms of the cDNA (e.g tagged or untagged) in several different host vectors for subsequent cloning and expression in Drosophila and Drosophila cell lines.
New stable cell line derived from S2-unspecified : An S2 cell line stably expressing a circular babo RNA was generated
Nonsense-mediated mRNA decay (NMD) down-regulates a distinct splice isoform(s) of this gene.
babo is required for generating the normal number of medulla neuroblasts and laminar precursor cells in the developing optic lobe.
babo is required in R7 neurons to mediate a normal preference for UV light.
babo is required during the late larval stage for development of adult-specific neurons.
dsRNA made from templates generated with primers directed against this gene tested in RNAi screen for effects on Kc167 and S2R+ cell morphology.
Null mutations and germ line clone analysis demonstrate that babo is not required during embryogenesis but is essential for proper pupation and adult viability. The major defect in mutants is a reduction of cell proliferation within the primordia for adult structures.
Candidate gene for tibia length quantitative trait locus.
Biochemical characterisation of babo, a receptor that binds activin only when coexpressed with type II receptors with which it forms a complex, demonstrates the structural and ligand-binding properties of babo are those of an activin type I receptor. These observations suggest that heteromeric kinase receptor structure is broadly conserved in metazoa.
Source for merge of: babo l(2)k16912 l(2)44Fd
Source for merge of: babo Gprk3