Leucine-rich repeat kinase 2 impairs the release sites of Parkinson's disease vulnerable dopamine axons.
The 7 matches · 2 of them tie a paragraph to a whole file, not to given lines: weak matches, whose lines are not tinted
- [1] § Methods › In vivo evoked dopamine release › Fiber photometry signal processing ↔ preprocess_and_binning.m, lines 63–181 · score 0.88 · sliding window, camera triggers, fluorescence traces, binned, velocity, baseline
- [2] § Methods › Pipelines for proteome analysis and data visualization › Gene ontology ↔ analysis code.zip/phosphopeptidesGSMLi2vsGSvehpublication.Rmd, lines 36–111 · score 0.81 · clusterProfiler, Cellular Components, Biological Process, db, mm, Pathways
- [3] § Methods › In vivo evoked dopamine release › Spontaneous dopamine transient selection ↔ triggered_analysis.m, the whole file · a weak match · score 0.80 · spontaneous transients, double threshold, low threshold, high threshold, onset, trace
- [4] § Methods › In vivo evoked dopamine release › Spontaneous dopamine transient selection ↔ snippets/transient_by_threshold.m, the whole file · a weak match · score 0.72 · double threshold, low threshold, high threshold, Spontaneous, transients, trace
- [5] § Results › LRRK2 phosphorylates RAB3 isoforms in vivo ↔ analysis code.zip/phosphopeptidesGSMLi2vsGSvehpublication.Rmd, lines 36–111 · score 0.57 · biological processes, log2FC, pathway, GO, enrichment, enriched
- [6] § Results › LRRK2 phosphorylates RAB3 isoforms in vivo ↔ analysis code.zip/volcanoPlots.Rmd, lines 17–78 · score 0.53 · log2FC, Rab3a, Volcano, GS, vehicle, MLi
- [7] § Results › Phosphorylation of RAB3A decreases its binding to the effector proteins RIM1 and RIM2 from mouse brain ↔ analysis code.zip/volcanoPlots.Rmd, lines 17–78 · score 0.52 · log2FC, Rab3a, volcano, MLi, phosphorylated, proteins
Paper
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The authors' code
R Markdown · 178 lines · 5.6 KB · CC-BY-4.0 · 2 matches
- ---
- title: "Phosphopeptides (GSMLI-2vsGSveh) GO Analysis"
- author: "Hannah Serio"
- date: "2025-06-09"
- output: html_document
- ---
- ```{r libraries, include=FALSE}
- library(clusterProfiler)
- library(org.Mm.eg.db)
- library(ggplot2)
- library(DOSE)
- library(readxl)
- library(openxlsx)
- library(dplyr)
- ```
- # GO Analysis - Synaptosome Phos Quant Phosphopeptides
- ```{r GO Analysis, warning=FALSE}
- excel_file <- "Anton-SPM-GSMLi2vsGSVeh-volcano-phosphopeptide-20250508 LP (3).xlsx" # table was provided by Parisiadou Lab
- gene_data <- read_excel(excel_file)
- # filter for p-value <= 0.05, |log2FC| > 0.58
- gene_data_filtered_abs <- gene_data %>%
- filter(logpvalue >= -log10(0.05), log2FC > 0.58 | log2FC < -0.58)
- # extract the genes of interest
- genesPeptideGroupsABS <- gene_data_filtered_abs$"...1"
- genesPeptideGroupsABS <- unique(genesPeptideGroupsABS)
- ```
- # Run GO analysis with dotplot visualization
- ```{r PhosphopeptidesGSMLI2, warning=FALSE, fig.width=9, fig.height=6, fig.path='R_plots_PhosphopeptidesGSMLI2publication/', dev=c('png', 'pdf')}
- # function to perform GO analysis and generate boxplot
- run_go_plot <- function(genes,
- ont = "BP",
- orgdb = org.Mm.eg.db,
- keytype = "SYMBOL",
- plot_title = "GO Analysis") {
- # run GO enrichment
- go_result <- enrichGO(gene = genes,
- OrgDb = orgdb,
- keyType = keytype,
- ont = ont,
- pAdjustMethod = "BH",
- pvalueCutoff = 0.05)
- # convert to data frame and calculate -log10(pvalue)
- go_df <- as.data.frame(go_result)
- go_df$logP <- -log10(go_df$pvalue)
- # function to generate a dotplot
- make_plot <- function(df, top_n, suffix) {
- df_top <- df %>% arrange(desc(logP)) %>% head(top_n)
- ggplot(df_top, aes(x = logP, y = reorder(Description, logP), size = Count, color = p.adjust)) +
- geom_point() +
- scale_color_gradient(low = "blue", high = "red") +
- labs(
- x = "-log10(p-value)",
- y = NULL,
- title = paste0(plot_title, " (Top ", top_n, ")")
- ) +
- theme_minimal()
- }
- # create plot with 15 top categories showing
- plot_top15 <- make_plot(go_df, 15, "Top 15")
- return(list(top15 = plot_top15))
- }
- ### PeptideGroups - BIOLOGICAL PROCESS
- dotplotPeptideGroupsbpABS <- run_go_plot(genes = genesPeptideGroupsABS,
- ont = "BP",
- plot_title = "GO Analysis (BP): Phosphopeptides GSMLI2 (|log2FC| > 0.58)")
- dotplotPeptideGroupsbpABS
- ### PeptideGroups - Cellular Component
- dotplotPeptideGroupsccABS <- run_go_plot(genes = genesPeptideGroupsABS,
- ont = "CC",
- plot_title = "GO Analysis (CC): Phosphopeptides GSMLI2 (|log2FC| > 0.58)")
- dotplotPeptideGroupsccABS
- ## KEGG Pathway Analysis
- # need to reformat gene list to be Entrez ID's for KEGG analysis
- entrezPeptideGroups <- bitr(genesPeptideGroupsABS, fromType = "SYMBOL", toType = "ENTREZID", OrgDb = org.Mm.eg.db)
- # extract only the Entrez ID column
- entrezPeptideGroups <- entrezPeptideGroups$ENTREZID
- # run clusterProfiler KEGG with dotplot visualization
- keggResultPeptideGroups <- enrichKEGG(gene = entrezPeptideGroups,
- organism = "mmu",
- pAdjustMethod = "BH",
- pvalueCutoff = 1)
- # extract results as a dataframe
- keggPeptideGroups <- as.data.frame(keggResultPeptideGroups)
- # convert p-value to -log10(p-value)
- keggPeptideGroups$logP <- -log10(keggPeptideGroups$pvalue)
- ```
- ```{r Saving Results, eval=FALSE}
- run_go_plot <- function(genes,
- ont = "BP",
- orgdb = org.Mm.eg.db,
- keytype = "SYMBOL") {
- # run GO enrichment
- go_result <- enrichGO(gene = genes,
- OrgDb = orgdb,
- keyType = keytype,
- ont = ont,
- pAdjustMethod = "BH",
- pvalueCutoff = 1) # keep all results
- # convert to data frame and calculate -log10(pvalue)
- go_df <- as.data.frame(go_result)
- go_df$logP <- -log10(go_df$pvalue)
- return(list(result = go_df))
- }
- # create workbook
- wb <- createWorkbook()
- # list of results
- go_results <- list(
- "PeptideGroups_BP" = run_go_plot(genesPeptideGroupsABS, ont = "BP"),
- "PeptideGroups_MF" = run_go_plot(genesPeptideGroupsABS, ont = "MF"),
- "PeptideGroups_CC" = run_go_plot(genesPeptideGroupsABS, ont = "CC"),
- "PeptideGroups_KEGG GSMLI2" = list(result = keggPeptideGroups)
- )
- # write results to excel sheet
- for (name in names(go_results)) {
- df <- go_results[[name]]$result
- addWorksheet(wb, name)
- writeData(wb, name, df)
- # Style: yellow fill for significant rows
- yellowStyle <- createStyle(bgFill = "#FFE599")
- # Style: black header row with white text (optional: bold)
- headerStyle <- createStyle(fontColour = "#000000", halign = "center", textDecoration = "bold")
- addStyle(wb, sheet = name, style = headerStyle, rows = 1, cols = 1:ncol(df), gridExpand = TRUE)
- # Highlight full rows where p.adjust < 0.05
- rows_to_highlight <- which(df$p.adjust < 0.05) + 1 # data starts at row 2
- if (length(rows_to_highlight) > 0) {
- conditionalFormatting(
- wb, sheet = name,
- cols = 1:ncol(df),
- rows = rows_to_highlight,
- rule = 'TRUE',
- type = "expression",
- style = yellowStyle
- )
- }
- setColWidths(wb, sheet = name, cols = 2, widths = "auto")
- }
- # save the workbook
- saveWorkbook(wb, "phosphopeptidesGSMLI2_Results.xlsx", overwrite = TRUE)
- ```
phosphopeptidesGSMLi2vsGSvehpublication.Rmd, under CC-BY-4.0 · at the source
Overview
- Department of Pharmacology, Northwestern University, Chicago, IL USA
- Aligning Science Across Parkinson’s (ASAP) Collaborative Research Network, Chevy Chase, MD USA
- Department of Neurobiology, Northwestern University, Evanston, IL USA
- School of Biochemistry and Immunology, Trinity College Dublin, Dublin, Ireland
- Medical Research Council Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, UK
- Department of Neurology, Northwestern University, Chicago, IL USA
- Department of Anesthesiology, Rutgers, New Jersey Medical School, Newark, NJ USA
- Department of Biology, University of Padova, Padova, Italy
- Centro Studi per la Neurodegenerazione (CESNE), University of Padova, Padova, Italy
Abstract
Parkinson’s disease (PD) is defined pathologically by loss of dopamine-producing neurons in the substantia nigra pars compacta (SNc). Yet synaptic dysfunction emerges much earlier, making it essential to define the mechanisms that drive early nigrostriatal deregulation. In the SNc, molecularly distinct dopamine neuron subtypes show differential susceptibility to PD. Here, we used intersectional genetic mouse models to determine how the PD-linked kinase LRRK2 affects vulnerable dopamine subtypes. Immunofluorescence and proximity-labeling proteomics revealed enriched LRRK2 expression in vulnerable dopamine neuron subclusters. High-resolution imaging showed that pathogenic LRRK2 disrupts presynaptic release-site organization in vulnerable dopamine axons, leading to reduced spontaneous and evoked striatal dopamine release in vivo. Proteomic analyses further showed that mutant LRRK2 increases phosphorylation of RAB3 proteins, impairing their interaction with the active-zone effectors RIM1 and RIM2. Together, these findings highlight a subtype-specific, cell-autonomous mechanism by which pathogenic LRRK2 impairs PD-vulnerable nigrostriatal synapses and provide a framework for therapeutic strategies targeting early synaptic deficits in PD.
Reproduced under the paper's license (CC BY), from the paper cited above.
Repositories
Its files are read in the Code ↔ Paper reader above, with 7 matches between paragraphs and lines of code.
curtain.proteo.info
Availability: 1 check, the latest on 27 September 2026: the link answers (HTTP 200)
- 27 September 2026: the link answers (HTTP 200)
Zenodo 19930567
Availability: 1 check, the latest on 27 September 2026: the link answers (HTTP 200)
- 27 September 2026: the link answers (HTTP 200)
2 files
- analysis code.zip/
phosphopeptidesGSMLi2vsG , R, 178 lines, 2 matchesSvehpublication.Rmd - analysis code.zip/
volcanoPlots.Rmd , R, 78 lines, 2 matches
Zenodo 20244434
Availability: 1 check, the latest on 27 September 2026: the link answers (HTTP 200)
- 27 September 2026: the link answers (HTTP 200)
8 files
- group_tables.m, MATLAB, 89 lines
- plot_results.m, MATLAB, 107 lines
- preprocess_and_binning.m
, MATLAB, 233 lines - snippets/
StimIdx.m , MATLAB, 28 lines - snippets/
chunking_index.m , MATLAB, 33 lines - snippets/
transient_by_threshold.m , MATLAB, 47 lines - triggered_analysis.m, MATLAB, 93 lines
- README.md, Text, 39 lines
DombeckLab/lrrk2_photometry_analysis
d34558fdde4b6665bd631c8fe47b8a1ef18f6a73, 30 July 2026Availability: 1 check, the latest on 27 September 2026: the link answers
- 27 September 2026: the link answers
9 files
- group_tables.m, MATLAB, 89 lines
- plot_results.m, MATLAB, 107 lines
- preprocess_and_binning.m
, MATLAB, 233 lines, 1 match - snippets/
StimIdx.m , MATLAB, 28 lines - snippets/
chunking_index.m , MATLAB, 33 lines - snippets/
transient_by_threshold.m , MATLAB, 47 lines, 1 match - triggered_analysis.m, MATLAB, 93 lines, 1 match
- LICENSE, License, 21 lines
- README.md, Text, 39 lines
Code availability
The codes generated in this study have been deposited on Zenodo, https://
Reproduced under the paper's license (CC BY), from the paper cited above.
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Data
Datasets cited
- biostudies:S-BIAD2070, at BioStudies; found in “Data availability”
- geo:GSE178265, at NCBI GEO; found in the text, “Plotting human genes in dopamine neurons”
Data availability
The mass spectrometry proteomics data generated in this study have been deposited in the ProteomeXchange Consortium via the PRIDE partner repository, with dataset identifiers PXD065003 (https://
Reproduced under the paper's license (CC BY), from the paper cited above.
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Version 1, 27 September 2026: the first record
Recorded: type, language, journal, volume, issue, pages, dates, 21 authors, 2 keywords, 18 MeSH terms, 5 funders, 97 references, 3 RRIDs.
Cite
This paper
Chen, C., He, Q., Tombesi, G., Napier, E., Jaconelli, M., Moreno-Ramos, O. A., Serio, H., Naaldijk, Y., Promes, V., Schneeweis, A., Quinn, K., Nasios, C., Greggio, E., Kozorovitskiy, Y., Arango, D., Khan, A. R., Alessi, D. R., Dombeck, D. A., Hilfiker, S., . . . Parisiadou, L. (2026). Leucine-rich repeat kinase 2 impairs the release sites of Parkinson's disease vulnerable dopamine axons. Nature communications, 17(1), 9165. https://
BibTeX
@article{chen2026leucine
author = {Chen, Chuyu and He, Qianzi and Tombesi, Giulia and Napier, Eve and Jaconelli, Matthew and Moreno-Ramos, Oscar Andrés and Serio, Hannah and Naaldijk, Yahaira and Promes, Vanessa and Schneeweis, Amanda and Quinn, Kaitlyn and Nasios, Christopher and Greggio, Elisa and Kozorovitskiy, Yevgenia and Arango, Daniel and Khan, Amir R and Alessi, Dario R and Dombeck, Daniel A and Hilfiker, Sabine and Awatramani, Rajeshwar and Parisiadou, Loukia},
title = {{Leucine-rich repeat kinase 2 impairs the release sites of Parkinson's disease vulnerable dopamine axons}},
journal = {Nature communications},
year = {2026},
month = jul,
volume = {17},
number = {1},
pages = {9165},
publisher = {Nature Publishing Group},
issn = {2041-1723},
doi = {10.1038/
url = {https://
pmid = {42660892},
pmcid = {PMC13522591}
}
RIS
TY - JOUR
AU - Chen, Chuyu
AU - He, Qianzi
AU - Tombesi, Giulia
AU - Napier, Eve
AU - Jaconelli, Matthew
AU - Moreno-Ramos, Oscar Andrés
AU - Serio, Hannah
AU - Naaldijk, Yahaira
AU - Promes, Vanessa
AU - Schneeweis, Amanda
AU - Quinn, Kaitlyn
AU - Nasios, Christopher
AU - Greggio, Elisa
AU - Kozorovitskiy, Yevgenia
AU - Arango, Daniel
AU - Khan, Amir R
AU - Alessi, Dario R
AU - Dombeck, Daniel A
AU - Hilfiker, Sabine
AU - Awatramani, Rajeshwar
AU - Parisiadou, Loukia
TI - Leucine-rich repeat kinase 2 impairs the release sites of Parkinson's disease vulnerable dopamine axons
T2 - Nature communications
J2 - Nat Commun
PY - 2026
DA - 2026/
VL - 17
IS - 1
SP - 9165
SN - 2041-1723
PB - Nature Publishing Group
DO - 10.1038/
UR - https://
LA - en
ER -
CSL-JSON
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