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4 protocols using anti bruchpilot

1

Neuromuscular Junction Analysis in Aging Flies

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For neuromuscular junction (NMJ) analysis, ventral abdominal body-wall muscle preparations were dissected in Ca2+ free saline from 3, 7, 15, 20 and 30-day old adult males [37 (link)]. For assessing Aβ synaptotoxicity, we selected the ventral abdominal NMJ in the third abdominal hemisegment (Fig 1A). Samples were fixed in 4% formaldehyde in PBS, and immunostained with monoclonal antibody nc82 (anti-Bruchpilot 1:20, Developmental Studies Hybridoma Bank) visualized with α-mouse Alexa-488 (1:500, Invitrogen) and with Cy3-conjugated anti-HRP (1:200, Jackson Immuno Research). Anti-HRP signal reveals neuronal membranes, delimitating the motor neuron terminals. Bruchpilot is a CAST (CD3E-associated protein) homolog localized to the presynaptic specialization [38 (link)], and thus that was used to reveal active zones in the motor neuron terminal. Each Aβ-expressing genotype was processed simultaneously with its respective age-matched controls, to control for quantitative differences due to culture conditions.
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2

Visualizing Drosophila Lobula Anatomy

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We used 3–5 days old female flies to visualize LC anatomy (Fig S1B) and the distribution of presynaptic and postsynaptic sites in the lobula (Fig 2A). Primary antibodies were anti-Bruchpilot (mouse monoclonal antibody Nc82, supernatant, Developmental Studies Hybridoma Bank, 1:10 dilution), anti-DsRed rabbit polyclonal antibody (Takara, 632496, 1:200 dilution), and anti-GFP chicken polyclonal antibody (abcam, 13970, 1:1000 dilution). Secondary antibodies used were Alexa Fluor 488 goat anti-chicken (abcam, ab150169, 1:1000 dilution), Alexa Fluor 568 goat anti-rabbit (ThermoFisher Scientific, A-11036, 1:200 dilution), and Alexa Fluor 647 goat anti-mouse (ThermoFisher Scientific, A-21236, 1:200 dilution).
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3

Multimodal Neuroanatomical Profiling of Drosophila Larvae

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Larvae were dissected in cold phosphate-buffered saline (PBS), fixed in 4% formaldehyde in PBS, washed with PBST (0.1% Triton X-100), and incubated with primary antibodies overnight at 4°C. Antibodies used include anti-Bruchpilot (Developmental Studies Hybridoma Bank (DSHB), antibody nc82, used at 1:50), anti-HRP (Jackson Immunoresearch, 123-605-021, used at 1:1000), anti-RFP (ThermoFisher # R10367, used at 1:2000), anti-Repo (DSHB, used at 1:20), anti-Synaptotagmin [57 (link)], anti-discs-large (DLG) (DSHB, used at 1:2000), anti-Futsch (DSHB antibody 22C10, used at 1:20), and anti-HP1 (DSHB C1A9, used at 1:20). Affinity purified rabbit anti-Tmep was used at 1:20.
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4

Immunohistochemical Analysis of Olfactory Receptors

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The following primary mouse antibodies were used: anti-GFP (1:100), anti-Bruchpilot (1:50, nc82, supernatant, Developmental Studies Hybridoma Bank [DSHB] ), and anti Rab11 (1:100, BD Biosciences). The primary rabbit antibodies, anti-GFP (1:2,000, TP-401, Torrey Pines), Lamp1, anti-Rab5, anti-Rab11 (1:100, Abcam), anti-Or22a (1:10,000) and anti-Orco (1:10,000) were gifts from Richard Benton. The secondary antibodies were conjugated to Alexa 488 or Alexa 568 (1:500, Molecular Probes). Antenna immunohistochemistry was performed as described previously (Couto et al., ). Or22a images were captured from a subset of stereotypic Or22a sensilla opposite to the arista. The confocal microscopy images were collected on an LSM 700 (Zeiss) and analyzed on a Zen image browser.
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