A Database of Drosophila Genes & Genomes

FB2013_03, released May 7th, 2013
 

Allele Dmel\Syt1Scer\UAS.cMa

General Information
SymbolDmel\Syt1Scer\UAS.cMaSpeciesD. melanogaster
NameSaccharomyces cerevisiae UAS construct a of MacklerFlyBase IDFBal0137072
Feature typealleleAssociated geneDmel\Syt1
Allele class
Mutagenin vitro construct - regulatory fusion
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Description
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FB2013_03
FB2013_02
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Allele class
Mutagen
Mutations Mapped to the Genome
Type
Location
Additional Notes
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Associated Sequence Data
DDBJ /
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GenBank
DNA sequence
Protein sequence
Name
 
UniProtKB/Swiss-Prot
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Progenitor genotype
Nature of the lesion
Statement
Reference
Construct: Scer\UAS regulatory sequences drive expression of wild-type syt.
Carried in construct
Cytology
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Statement
Reference
There is no difference in τ values in Syt1[AD4]/Syt1[N13]; Syt1[Scer\UAS.cMa] Scer\GAL4[elav.PLu] flies in response to a 50Hz, 10s stimulus.
The Ca2+ dependence of neurotransmitter release in larvae expressing sytB-D3.4N.Scer\UAS under the control of Scer\GAL4elav.PLu in a sytAD4 background is significantly shifted compared to the Ca2+ dependence of neurotransmitter release in larvae expressing sytScer\UAS.cMa under the control of Scer\GAL4elav.PLu in a sytAD4 background.
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Rescues
Partially rescues
Comments
Expression of sytScer\UAS.cMa under the control of Scer\GAL4elav.PLu rescues the lethality of sytAD4 flies; 85 +/- 6% of the expected number survive. The rescued adults are slightly uncoordinated. sytAD4 homozygous larvae which are also expressing sytScer\UAS.cMa under the control of Scer\GAL4elav.PLu have a mean excitatory junction potential (EJP) amplitude at the neuromuscular junction which is 67% of that of control larvae. The frequency of spontaneous miniature EJPs (mEJPs) in these larvae is slightly increased compared to controls (the difference is not statistically significant). The distribution of quantal sizes and the mean quantal size of the mEJPs is not different from controls. The mean excitatory junction potential (EJP) amplitude at the neuromuscular junction of sytAD4 homozygous larvae which are also expressing sytKQ.Scer\UAS under the control of Scer\GAL4elav.PLu is significantly reduced compared to the mean EJP amplitude of sytAD4 homozygous larvae which are also expressing sytScer\UAS.cMa under the control of Scer\GAL4elav.PLu. The mean miniature EJP (mEJP) amplitude at the neuromuscular junction of sytAD4 homozygous larvae which are also expressing sytKQ.Scer\UAS under the control of Scer\GAL4elav.PLu is not significantly different from the mean mEJP amplitude of sytAD4 homozygous larvae which are also expressing sytScer\UAS.cMa under the control of Scer\GAL4elav.PLu. The mean mEJP frequency at the neuromuscular junction of sytAD4 homozygous larvae which are also expressing sytKQ.Scer\UAS under the control of Scer\GAL4elav.PLu is approximately twice that of sytAD4 homozygous larvae which are also expressing sytScer\UAS.cMa under the control of Scer\GAL4elav.PLu.
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Reported As
Symbol Synonym
Syt1Scer\UAS.cMa
 
sytScer\UAS.cMa
 
Name Synonym
Saccharomyces cerevisiae UAS construct a of Mackler
Secondary FlyBase IDs
hide References ( 5 )
Research paper
Mace et al., 2009, genesis 47(5): 337--345
Synaptotagmin I stabilizes synaptic vesicles via its C(2)A polylysine motif. [FBrf0215317]
Poskanzer et al., 2006, Neuron 50(1): 49--62
Discrete residues in the c(2)b domain of synaptotagmin I independently specify endocytic rate and synaptic vesicle size. [FBrf0195323]
Mackler et al., 2002, Nature 418(6895): 340--344
The C(2)B Ca(2+)-binding motif of synaptotagmin is required for synaptic transmission in vivo. [FBrf0151437]
Mackler and Reist, 2001, J. Comp. Neurol. 436(1): 4--16
Mutations in the second C[2] domain of synaptotagmin disrupt synaptic transmission at Drosophila neuromuscular junctions. [FBrf0136999]
Supplementary material
Mackler et al., 2002, Nature 418(6895):
The C(2)B Ca(2+)-binding motif of synaptotagmin is required for synaptic transmission in vivo. [FBrf0150845]