str, Thickvein, l(2)04415, Brk25D, slater
receptor of Decapentaplegic - Wnt ligands regulate Tkv expression to constrain Dpp activity in the Drosophila ovarian stem cell niche - loss of Neurexin and Neuroligin leads to decreased levels of the BMP co-receptor, Thickveins and the downstream effector phosphorylated Mad at the neuromuscular junction synapses - S6 kinase like inhibits neuromuscular junction growth by downregulating the BMP receptor thickveins
Please see the JBrowse view of Dmel\tkv for information on other features
To submit a correction to a gene model please use the Contact FlyBase form
AlphaFold produces a per-residue confidence score (pLDDT) between 0 and 100. Some regions with low pLDDT may be unstructured in isolation.
Annotated transcripts do not represent all supported alternative splices within 5' UTR.
Gene model reviewed during 5.51
4.4, 3.3 (northern blot)
None of the polypeptides share 100% sequence identity.
563, 509 (aa)
563 (aa)
Click to get a list of regulatory features (enhancers, TFBS, etc.) and gene disruptions (point mutations, indels, etc.) within or overlapping Dmel\tkv 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: maternally deposited
Comment: anlage in statu nascendi
Comment: anlage in statu nascendi
Comment: anlage in statu nascendi
Comment: anlage in statu nascendi
Comment: anlage in statu nascendi
Comment: reported as procephalic ectoderm anlage in statu nascendi
Comment: reported as procephalic ectoderm anlage in statu nascendi
Comment: reported as procephalic ectoderm anlage in statu nascendi
Comment: reported as procephalic ectoderm primordium
Comment: reported as procephalic ectoderm primordium
Comment: reported as procephalic ectoderm primordium
Comment: reported as procephalic ectoderm primordium
Comment: reported as procephalic ectoderm primordium
Comment: reported as procephalic ectoderm primordium
Comment: AMG
Comment: reference states 0-12 hr AEL
In stage 10B egg chambers, tkv is expressed in a dorsoventral pattern with two lateral patches on both sides of the
dorsal midline.
Expression is observed in the anterior midline glial cells.
JBrowse - Visual display of RNA-Seq signals
View Dmel\tkv in JBrowse2-17.6
Maps adjacent to Bsg25D.
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.
When dsRNA constructs are made and transiently transfected into S2 cells in RNAi experiments, a whole range of mitotic abnormalities, spindle abnormalities, chromosome abnormalities, chromosome alignment defects and polyploid cells are seen.
dsRNA made from templates generated with primers directed against this gene tested in RNAi screen for effects on Kc167 and S2R+ cell morphology.
dpp receptors tkv and put are not required for photoreceptor cell differentiation. tkv and put play a nonessential role in morphogenetic furrow progression, but are required for initiation of the furrow at the posterior margin. tkv and dpp mutant clones reveal a role for dpp in the early growth of the eye imaginal disc. Ectopic activation of the dpp pathway does not lead to ectopic neuronal differentiation.
The autosomal "FLP-DFS" technique (using the P{ovoD1-18} P{FRT(whs)} P{hsFLP} chromosomes) has been used to identify the specific maternal effect phenotype for the zygotic lethal mutation.
tkv is essential to establish the lateral trunk branches.
tkv has been cloned and sequenced, and its expression pattern has been analysed.
Isolated in a PCR screen for receptor protein serine/threonine kinase candidates.
Maternal germline clonal analysis reveals tkv is lethal in the germline, results are consistent with the idea that tkv function is required for oogenesis. A reduction of the tkv product maternally results in partially ventralised embryos, the degree of ventralisation increases as the zygotic tkv product is also reduced. Interactions with dorsoventral patterning genes demonstrates tkv plays a role in establishing dorsoventral patterning.
Mutations in tkv cause thickened veins.
In the loss-of-function alleles of tkv, N and Dl, thickened veins and occasional plexi are seen, associated with small wings. In the gain-of-function alleles the reciprocal phenotype is seen, associated with large wings. The 'Notch' phenotypic group includes neurogenetic mutations involved in cell communications. Some alleles are embryonic lethal.
Two types of mutants have been described, recessive lethals and visibles (viable as adults). Some of the recessive lethals die as embryos, lacking dorsal hypoderm (Nusslein-Volhard et al., 1984). The wing veins of the viable mutants are thickened and branched in the region of crossveins, near end of L2 and elsewhere. Sometimes there is a blister near the posterior crossvein in female flies; L4 sometimes shortened, especially in females. Expression more extreme at 19oC than at higher temperatures and in females than in males. Some heteroallelic combinations are lethal; others are viable with thick veins and thoracic abnormalities (Szidonya and Reuter, 1988).