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Knit directory: immgenT-GP-analysis/analysis/

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File Version Author Date Message
html 60125af Ziang Zhang 2026-09-10 Build site: Figure 4b on the shared column colours
html 88ee847 Ziang Zhang 2026-09-10 Build site: Figure 4b without the miniverse clusters
html 5874416 Ziang Zhang 2026-09-10 Build site: main Figure 4 inserted, Extended Data back to 1-7
Rmd 4307b28 Ziang Zhang 2026-09-10 New main Figure 4, and fold the cluster heatmap into Extended Data Figure 2
html bf4f612 Ziang Zhang 2026-09-09 Build site: Extended Data back to 1-8
Rmd 6f01135 Ziang Zhang 2026-09-09 Pull the tissue figure back out of Extended Data; ED is 1-8 again
html a7a481f Ziang Zhang 2026-09-09 Build site: the rebuilt Figure 1d and the Extended Data renumbering
Rmd c233cd8 Ziang Zhang 2026-09-09 Extended Data reorganisation: split the tissue/cluster figure, renumber 3-8
html 1e88d7e Ziang Zhang 2026-09-04 Build site: published captions and titles across all 24 pages
Rmd 0267e5b Ziang Zhang 2026-09-04 Captions from the published manuscript; trim editor notes off the page code
html 19c977f Ziang Zhang 2026-09-02 Build site: Extended Data 5-7 renumbered, Figure S5 page rebuilt
html 9167d8f Ziang Zhang 2026-08-19 Build site: Extended Data Figure 3 page rebuilt
Rmd 7b0f736 Ziang Zhang 2026-08-19 Extended Data Figure 3 intro: drop the repository-scope phrasing
html ae03072 Ziang Zhang 2026-08-19 Build site: six pages rebuilt after the prose cleanup
Rmd adc2327 Ziang Zhang 2026-08-19 Site prose: finish taking internal notes off the pages
html eeca07b Ziang Zhang 2026-08-05 Keep pre-refactor provenance in panel comments off the published pages
Rmd 5651d0e Ziang Zhang 2026-08-05 Extended Data tables: reorder to six, rebuild Table 1, drop internal notes
html cbcec52 Ziang Zhang 2026-07-30 Build site: Extended Data Figure naming
Rmd 66aa029 Ziang Zhang 2026-07-30 Name the Extended Data figures as published on the site
html ac650a0 Ziang Zhang 2026-07-30 Build site: Figure S5 (ex-S6a) and Figure S6 as a-f
html ae21d37 Ziang Zhang 2026-07-28 Build site: republish after the reorder commits
html d538aa2 Ziang Zhang 2026-07-28 Build site: reordered Figures 6 / S6 / S3 and the new Figure 7b page
Rmd 4c07670 Ziang Zhang 2026-07-28 Reorder Figures 6, S6 and S3; make the ex-S5 figure Figure 7b
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Rmd 0f5b5da Ziang Zhang 2026-07-28 Align all figure captions with captions_20260728_final.docx
html 3fc3789 Ziang Zhang 2026-07-27 Republish all 24 pages
html 1390a03 Ziang Zhang 2026-07-27 Republish all 24 pages
html adaef21 Ziang Zhang 2026-07-27 Build site: panel fixes and PDF-derived assets
html 5b19858 Ziang Zhang 2026-07-27 Build site.
Rmd 91ee059 Ziang Zhang 2026-07-26 Select each panel’s code block by name, not by line number
html 91ee059 Ziang Zhang 2026-07-26 Select each panel’s code block by name, not by line number
Rmd fa5a501 Ziang Zhang 2026-07-18 Fig S3c: reproduce collaborator panel (activated CD4/CD8, threshold 0.1)
html fa5a501 Ziang Zhang 2026-07-18 Fig S3c: reproduce collaborator panel (activated CD4/CD8, threshold 0.1)
Rmd b197499 Ziang Zhang 2026-07-16 Restructure main figures (renumber + split Figure 1)
html b197499 Ziang Zhang 2026-07-16 Restructure main figures (renumber + split Figure 1)
html 92021bf Ziang Zhang 2026-07-02 Build site.
html 827c89b Ziang Zhang 2026-07-02 Build site.
Rmd 8ac7f9f Ziang Zhang 2026-07-02 Add data provenance notes to each script; remove conversational
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html c6e5086 Ziang Zhang 2026-07-02 Build site.
html 5a79883 Ziang Zhang 2026-07-02 Build site.
Rmd 2b0e445 Ziang Zhang 2026-07-02 Fix GitHub source links to point at the new
html cf1d0ac Ziang Zhang 2026-07-02 Build site.
Rmd 06b2461 Ziang Zhang 2026-07-02 Initial commit: immgenT-GP-analysis
html 06b2461 Ziang Zhang 2026-07-02 Initial commit: immgenT-GP-analysis

Panels (b)-(f) are produced by script/FigureS3.R, which shares its curated GP set with Figure 5 via code/R/activation_shared_setup.R. The code below is shown for reference (not re-executed on this page); the images are its pre-rendered output.

Panel (a) is not generated from code – see below.

Setup

# Figure S3. Characterizing activation GPs.
#
# Panels produced:
#
# s3a is the definition of resting vs activated CD4/CD8 cells (the
# lineage-specific MDEs plus the adjacent CD62L-vs-CD44 protein plot, one
# panel). It is NOT produced here -- no code in this repository draws it; see
# analysis/FigureS3.Rmd.
#
#   s3b  Fraction of activated CD4/CD8 cells per organ with GP26 > 0.1, sorted.
#   s3c  GSEA dot plot relating the activation GPs to curated gene sets.
#   s3d  Fraction of activated CD4 cells with GP79 loading > 0.1, by condition.
#   s3e  Per-cell log2FC heatmap of activation GPs vs resting baseline.
#   s3f  Fraction of activated CD8/CD4 cells with GP57 loading > 0.1: cancer
#        vs all other conditions.
#
# The curated GP set and activated/resting cell groupings are shared with
# Figure 5 via code/R/activation_shared_setup.R.
#
# Panel s3b is computed on activated CD4/CD8 cells only (annotation_level1 in
# {CD4, CD8} and annotation_level2_group == "activated"): the per-organ fraction
# with GP26 loading > 0.1.
#
# Required inputs (data/) -- see code/README.md's "Data provenance" table
# for the full picture:
#   L_pm_filtered.rds, F_pm_filtered.rds     [code/pipeline/01b_filter_cells.R]
#   igt1_96_..._ADTonly.Rds                  [primary input Seurat object]
#   GSEA_signatures_select_toplot.csv        [external: curated gene-set collection]

library(ggplot2)
library(dplyr)
library(stringr)
library(pheatmap)
library(scales)

data_path <- "data/"
figure_path <- "figures/final-selected/Figure S3/"
source("code/R/plot_utils.R") # scale_cols()

# ============================================================
# Load data
# ============================================================
L_pm_filtered <- readRDS(paste0(data_path, "L_pm_filtered.rds"))
colnames(L_pm_filtered) <- paste0("GP", seq_len(ncol(L_pm_filtered)))
F_pm_filtered <- readRDS(paste0(data_path, "F_pm_filtered.rds"))
colnames(F_pm_filtered) <- paste0("GP", seq_len(ncol(F_pm_filtered)))
seurat_meta <- readRDS(paste0(data_path, "igt1_96_withtotalvi20260206_clean_ADTonly.Rds"))@meta.data
seurat_meta_filtered <- seurat_meta[rownames(L_pm_filtered), ]
df_sig <- read.csv(paste0(data_path, "GSEA_signatures_select_toplot.csv"), header = TRUE, sep = ",")

source("code/R/activation_shared_setup.R")

(a) Definition of resting and activated CD4/CD8 cells

This panel shows the CITE-seq gating used to define resting and activated cells; it is not generated from code, so only its caption is given here.

Extended Data Fig. 3a. Definition of resting and activated CD4+ and CD8+ T cells. Activated CD44⁺CD62L⁻ (top) and resting CD62L⁺CD44⁻ (bottom) cells are highlighted in each lineage-specific MDE. Gated cells are shown in the adjacent CD62L versus CD44 protein-expression plot (CITE-seq, log-normalized counts).

The annotation_level2_group “activated”/“resting” labels that every other panel on this page (and all of Figure 5) filters on are the labels this panel defines, so the gate itself is already in use here – only the figure illustrating it is absent.

(b) GP26+ rate by organ

# ============================================================
# s3b: Fraction of activated CD4/CD8 cells per organ with GP26 loading > 0.1
# ============================================================
act_cd4_cd8 <- seurat_meta_filtered$annotation_level1 %in% c("CD4", "CD8") &
  seurat_meta_filtered$annotation_level2_group == "activated"
gp26_organ_df <- data.frame(
  organ = seurat_meta_filtered$organ_simplified[act_cd4_cd8],
  gp26_high = L_pm_filtered[act_cd4_cd8, "GP26"] > 0.1
) %>%
  filter(!is.na(organ), organ != "") %>%
  group_by(organ) %>%
  summarise(n_cells = n(), proportion_gp26_high = mean(gp26_high), .groups = "drop") %>%
  arrange(desc(proportion_gp26_high)) %>%
  mutate(organ = factor(organ, levels = organ),
         pct = 100 * proportion_gp26_high,
         pct_lab = sub("\\.0%$", "%", sprintf("%.1f%%", pct)))  # e.g. 99%, 98.7%

# abbreviate a few long organ names to match the published panel
organ_abbrev <- c("submandibular gland" = "submand. gland",
                  "mammary gland"       = "mam. gland",
                  "small intestine epi" = "sm intestine epi",
                  "small intestine LP"  = "sm intestine LP",
                  "peritoneal cavity"   = "perit. cav.")

p_s3b <- ggplot(gp26_organ_df, aes(x = organ, y = pct)) +
  geom_col(fill = "#4C72B0", width = 0.7) +
  geom_text(aes(label = pct_lab), vjust = -0.4, size = 3, color = "grey20") +
  scale_x_discrete(labels = function(x) ifelse(x %in% names(organ_abbrev), organ_abbrev[x], x)) +
  scale_y_continuous(breaks = c(0, 50, 100), labels = c("0", "50%", "100"),
                     expand = expansion(mult = c(0, 0.10))) +
  labs(x = NULL, y = "Proportion activated (loading > 0.1) (%)",
       title = "Activation of GP26 (threshold = 0.1) across Organ") +
  theme_classic(base_size = 12) +
  theme(axis.text.x = element_text(angle = 45, hjust = 1),
        plot.title = element_text(hjust = 0.5))
ggsave(filename = paste0(figure_path, "s3b.pdf"), plot = p_s3b, width = 9, height = 4.8)

Version Author Date
5874416 Ziang Zhang 2026-09-10
c233cd8 Ziang Zhang 2026-09-09
d538aa2 Ziang Zhang 2026-07-28

Extended Data Fig. 3b. Bar plot showing broad GP26 activity in activated CD4+ and CD8+ T cells across organs (percent of cells with GP26 activity above 0.1 per tissue)

(c) GSEA dot plot

# ============================================================
# s3c: GSEA dot plot for the activation GPs
# ============================================================
df_sig <- df_sig %>% mutate(factor = str_replace(factor, "^F", "GP"))
present_GPs <- intersect(ordered_GPs, unique(df_sig$factor))
y_levels <- rev(present_GPs) # first GP (GP56) appears at the top of the y-axis
df_plot <- df_sig %>%
  filter(factor %in% present_GPs) %>%
  mutate(pathway = factor(pathway, levels = unique(pathway)), factor = factor(factor, levels = y_levels), log10padj = -log10(padj))
y_factors <- levels(df_plot$factor)
y_colors <- highlight_colors[y_factors]

p_s3c <- ggplot(df_plot, aes(x = pathway, y = factor)) +
  geom_point(aes(size = NES, color = log10padj)) +
  scale_color_viridis_c(name = "-log10(p-adj)") +
  scale_size(range = c(3, 10)) +
  theme_bw() +
  theme(axis.text.x = element_text(angle = 90, hjust = 1), axis.text.y = element_text(color = y_colors, face = "bold")) +
  labs(size = "NES", x = "Pathway", y = "Gene Program")
ggsave(filename = paste0(figure_path, "s3c.pdf"), plot = p_s3c, width = 8, height = 10)

Version Author Date
5874416 Ziang Zhang 2026-09-10
c233cd8 Ziang Zhang 2026-09-09
d538aa2 Ziang Zhang 2026-07-28
7102598 Ziang Zhang 2026-07-27
6c1a613 Ziang Zhang 2026-07-27
bf7afcf Ziang Zhang 2026-07-27
ea3ecc2 Ziang Zhang 2026-07-27
fa5a501 Ziang Zhang 2026-07-18
78e3bba Ziang Zhang 2026-07-03
06b2461 Ziang Zhang 2026-07-02

Extended Data Fig. 3c. Gene set enrichment analysis (GSEA) dot plot relating activation-associated GPs to curated immunologic signature gene sets. Color denotes −log10 adjusted P value, and dot size denotes the normalized enrichment score (NES).

(d) GP79+ rate across conditions

# ============================================================
# s3d: GP79 high-loading proportion across conditions, activated CD4 cells
# ============================================================
min_cells_gp79_condition <- 50
gp79_cd4_condition_df <- data.frame(
  condition_broad = as.character(seurat_meta_filtered$condition_broad),
  condition_detailed_simplified = as.character(seurat_meta_filtered$condition_detailed_simplified),
  lineage = seurat_meta_filtered$annotation_level1,
  activation_group = seurat_meta_filtered$annotation_level2_group,
  gp79_loading = L_pm_filtered[, "GP79"],
  stringsAsFactors = FALSE
) %>%
  filter(lineage == "CD4", activation_group == "activated", !is.na(condition_detailed_simplified), condition_detailed_simplified != "") %>%
  mutate(gp79_high = gp79_loading > 0.1)

gp79_cd4_condition_summary <- gp79_cd4_condition_df %>%
  group_by(condition_detailed_simplified) %>%
  summarise(
    condition_broad = names(sort(table(condition_broad), decreasing = TRUE))[1],
    n_cells = n(), n_gp79_high = sum(gp79_high), proportion_gp79_high = mean(gp79_high), .groups = "drop"
  ) %>%
  mutate(included_in_plot = n_cells >= min_cells_gp79_condition) %>%
  arrange(desc(proportion_gp79_high), condition_detailed_simplified)

gp79_cd4_condition_plot_df <- gp79_cd4_condition_summary %>%
  filter(included_in_plot) %>%
  arrange(proportion_gp79_high, condition_detailed_simplified) %>%
  mutate(condition_label = factor(condition_detailed_simplified, levels = condition_detailed_simplified))

gp79_broad_levels <- sort(unique(gp79_cd4_condition_plot_df$condition_broad))
gp79_broad_colors <- setNames(scales::hue_pal()(length(gp79_broad_levels)), gp79_broad_levels)
gp79_xmax <- max(gp79_cd4_condition_plot_df$proportion_gp79_high, na.rm = TRUE)
gp79_xmax <- ifelse(gp79_xmax > 0, gp79_xmax, 0.05)
gp79_label_pad <- gp79_xmax * 0.015
gp79_plot_height <- max(7, 0.18 * nrow(gp79_cd4_condition_plot_df) + 2)

p_s3d <- ggplot(gp79_cd4_condition_plot_df, aes(x = proportion_gp79_high, y = condition_label, fill = condition_broad)) +
  geom_col(width = 0.75, color = "grey25", linewidth = 0.2) +
  geom_text(aes(x = proportion_gp79_high + gp79_label_pad, label = scales::percent(proportion_gp79_high, accuracy = 1)), hjust = 0, size = 2.7) +
  scale_x_continuous(labels = scales::percent_format(accuracy = 10), expand = expansion(mult = c(0, 0.02))) +
  scale_fill_manual(values = gp79_broad_colors) +
  coord_cartesian(xlim = c(0, gp79_xmax * 1.15), clip = "off") +
  labs(
    x = "Proportion of activated CD4 cells with GP79 loading > 0.1", y = NULL, fill = "Condition broad",
    title = "GP79-high fraction across activated CD4 conditions",
    subtitle = paste0("condition_detailed_simplified categories with >= ", min_cells_gp79_condition, " activated CD4 cells")
  ) +
  theme_classic(base_size = 11) +
  theme(
    legend.position = "right", legend.title = element_text(face = "bold"),
    plot.title = element_text(face = "bold", hjust = 0.5), plot.subtitle = element_text(hjust = 0.5),
    axis.text.y = element_text(size = 8), plot.margin = margin(10, 45, 10, 10)
  )
ggsave(filename = paste0(figure_path, "s3d.pdf"), plot = p_s3d, width = 9, height = gp79_plot_height, limitsize = FALSE)

Version Author Date
5874416 Ziang Zhang 2026-09-10
c233cd8 Ziang Zhang 2026-09-09
d538aa2 Ziang Zhang 2026-07-28
7102598 Ziang Zhang 2026-07-27
6c1a613 Ziang Zhang 2026-07-27
bf7afcf Ziang Zhang 2026-07-27
ea3ecc2 Ziang Zhang 2026-07-27
78e3bba Ziang Zhang 2026-07-03
06b2461 Ziang Zhang 2026-07-02

Extended Data Fig. 3d. Bar plot showing the percentage of GP79-active cells among all activated CD4+ T cells across immunological challenges.

(e) Per-cell log2FC heatmap

# ============================================================
# s3e: Per-cell log2FC heatmap of activation GPs (activated cells only),
#      relative to each cell's own-lineage resting baseline
# ============================================================
L <- L_pm_filtered[c(CD4_cells, CD8_cells), GPs_of_interest, drop = FALSE]
cell_ids <- rownames(L)
cell_type <- seurat_meta_filtered$annotation_level2[match(cell_ids, seurat_meta_filtered$cellID)]

set.seed(123)
total_budget <- 8000
small_keep_all <- 150
min_per_cluster <- 150
max_per_cluster <- 600
cells_by_ct <- split(cell_ids, cell_type)
sizes <- sapply(cells_by_ct, length)
alloc <- ifelse(sizes <= small_keep_all, sizes, pmin(min_per_cluster, sizes))
remaining <- total_budget - sum(alloc)
if (remaining > 0) {
  room <- pmax(pmin(sizes, max_per_cluster) - alloc, 0)
  if (sum(room) > 0) {
    extra <- floor(remaining * room / sum(room))
    alloc <- alloc + extra
    leftover <- total_budget - sum(alloc)
    if (leftover > 0) {
      idx <- order(room, decreasing = TRUE)
      for (j in idx) {
        if (leftover <= 0) break
        addable <- pmin(room[j] - extra[j], leftover)
        if (addable > 0) {
          alloc[j] <- alloc[j] + addable
          leftover <- leftover - addable
        }
      }
    }
  }
}
sampled_cells <- unlist(mapply(function(v, m) if (length(v) <= m) v else sample(v, m), cells_by_ct, pmin(alloc, sizes), SIMPLIFY = FALSE), use.names = FALSE)

cell_group_s <- seurat_meta_filtered$annotation_level2_group[match(sampled_cells, seurat_meta_filtered$cellID)]
cell_level2_s <- seurat_meta_filtered$annotation_level2[match(sampled_cells, seurat_meta_filtered$cellID)]
cell_group_s <- trimws(tolower(as.character(cell_group_s)))
cell_level2_s <- trimws(as.character(cell_level2_s))
cell_level1_s <- sapply(strsplit(cell_level2_s, "[_.]"), `[`, 1)
is_w_cell <- grepl("\\.w", cell_level2_s)
valid_idx <- which(!is.na(cell_level2_s) & !tolower(cell_level2_s) %in% c("", "na", "nan") & cell_group_s %in% c("resting", "activated") & !is_w_cell)
final_cells <- sampled_cells[valid_idx]
final_group <- cell_group_s[valid_idx]
final_level1 <- cell_level1_s[valid_idx]
final_level2 <- cell_level2_s[valid_idx]
col_order <- order(final_group, final_level1, final_level2)
final_cells <- final_cells[col_order]
final_group <- final_group[col_order]
final_level1 <- final_level1[col_order]
final_level2 <- final_level2[col_order]

pc <- 1e-10
cap <- 2
group_counts <- sapply(
  list(
    c("GP56", "GP162", "GP36", "GP152", "GP161", "GP177", "GP79", "GP12", "GP13", "GP159"),
    c("GP10", "GP58", "GP181", "GP176"),
    c("GP25", "GP26", "GP35", "GP32", "GP80", "GP57"),
    c("GP9", "GP171", "GP49", "GP41", "GP11")
  ),
  function(gp_group) sum(ordered_GPs %in% gp_group)
)
group_counts <- group_counts[group_counts > 0]
gaps_row <- cumsum(group_counts)[-length(group_counts)]

act_idx <- which(final_group == "activated")
act_cells <- final_cells[act_idx]
act_level1 <- final_level1[act_idx]
act_level2 <- final_level2[act_idx]
act_order <- order(act_level1, act_level2)
act_cells <- act_cells[act_order]
act_level1 <- act_level1[act_order]
act_level2 <- act_level2[act_order]

L_sub_act <- L[act_cells, , drop = FALSE]
M_raw_act <- t(L_sub_act)

# Per-lineage resting baseline: each activated cell's log2FC is computed
# against the mean loading in resting cells of its own lineage.
mu_resting_CD4 <- colMeans(L_pm_filtered[CD4_resting_cells, GPs_of_interest, drop = FALSE])
mu_resting_CD8 <- colMeans(L_pm_filtered[CD8_resting_cells, GPs_of_interest, drop = FALSE])
baseline_mat <- matrix(NA_real_, nrow = nrow(M_raw_act), ncol = ncol(M_raw_act))
rownames(baseline_mat) <- rownames(M_raw_act)
baseline_mat[, act_level1 == "CD4"] <- mu_resting_CD4[rownames(M_raw_act)]
baseline_mat[, act_level1 == "CD8"] <- mu_resting_CD8[rownames(M_raw_act)]
M_fc_act <- log2((M_raw_act + pc) / (baseline_mat + pc))
M_fc_act_cap <- pmax(pmin(M_fc_act, cap), -cap)
M_fc_act_cap <- M_fc_act_cap[ordered_GPs, , drop = FALSE]

ann_col_act <- data.frame(Level2 = factor(act_level2), Level1 = factor(act_level1))
rownames(ann_col_act) <- colnames(M_fc_act_cap)
present_level1_act <- levels(ann_col_act$Level1)
present_level2_act <- levels(ann_col_act$Level2)
level1_cols_act <- ZemmourLib::immgent_colors$level1
level1_cols_act <- level1_cols_act[names(level1_cols_act) %in% present_level1_act]
level2_cols_act <- ZemmourLib::immgent_colors$level2
level2_cols_act <- level2_cols_act[names(level2_cols_act) %in% present_level2_act]
missing_l2_act <- setdiff(present_level2_act, names(level2_cols_act))
if (length(missing_l2_act) > 0) {
  level2_cols_act <- c(level2_cols_act, setNames(rep("grey80", length(missing_l2_act)), missing_l2_act))
}
ann_colors_act <- list(Level1 = level1_cols_act, Level2 = level2_cols_act)

rle_l1_act <- rle(as.character(ann_col_act$Level1))
gaps_col_act <- cumsum(rle_l1_act$lengths)
gaps_col_act <- gaps_col_act[-length(gaps_col_act)]

pheatmap(
  M_fc_act_cap,
  cluster_rows = FALSE, cluster_cols = FALSE,
  gaps_row = gaps_row, gaps_col = gaps_col_act,
  color = colorRampPalette(c("#7A0177", "black", "#FFD700"))(101),
  breaks = seq(-cap, cap, length.out = 102),
  show_colnames = FALSE, fontsize_row = 7, fontface_row = "bold", border_color = NA,
  annotation_col = ann_col_act, annotation_colors = ann_colors_act, annotation_names_col = TRUE,
  useRaster = TRUE,
  main = "GP Log2FC vs per-lineage RESTING baseline (CD4 cells vs CD4 resting; CD8 vs CD8 resting)",
  filename = paste0(figure_path, "s3e.pdf"),
  width = 12, height = 4
)

Version Author Date
5874416 Ziang Zhang 2026-09-10
c233cd8 Ziang Zhang 2026-09-09
d538aa2 Ziang Zhang 2026-07-28
7102598 Ziang Zhang 2026-07-27
6c1a613 Ziang Zhang 2026-07-27
bf7afcf Ziang Zhang 2026-07-27
ea3ecc2 Ziang Zhang 2026-07-27
78e3bba Ziang Zhang 2026-07-03
06b2461 Ziang Zhang 2026-07-02

Extended Data Fig. 3e. Heatmap showing single-cell GP activity in activated CD4+ and CD8+ T cells (log2 fold change in GP activity relative to the resting baseline of the same lineage). Cells are grouped by cluster.

(f) GP57+ rate, cancer vs. other conditions

# ============================================================
# s3f: GP57 high-loading proportion, cancer vs other conditions
#      (activated CD4 and CD8)
# ============================================================
gp57_condition_df <- data.frame(
  lineage = seurat_meta_filtered$annotation_level1,
  activation_group = seurat_meta_filtered$annotation_level2_group,
  condition_broad = as.character(seurat_meta_filtered$condition_broad),
  gp57_loading = L_pm_filtered[, "GP57"],
  stringsAsFactors = FALSE
) %>%
  filter(lineage %in% c("CD8", "CD4"), activation_group == "activated") %>%
  mutate(
    lineage = factor(lineage, levels = c("CD8", "CD4")),
    condition_group = if_else(condition_broad == "cancer", "Cancer", "Other conditions"),
    condition_group = factor(condition_group, levels = c("Cancer", "Other conditions")),
    gp57_high = gp57_loading > 0.1
  )

gp57_condition_summary <- gp57_condition_df %>%
  group_by(lineage, condition_group) %>%
  summarise(n_cells = n(), n_gp57_high = sum(gp57_high), proportion_gp57_high = mean(gp57_high), .groups = "drop")

gp57_ymax <- max(gp57_condition_summary$proportion_gp57_high, na.rm = TRUE)
gp57_ymax <- ifelse(gp57_ymax > 0, gp57_ymax * 1.25, 0.05)

p_s3f <- ggplot(gp57_condition_summary, aes(x = lineage, y = proportion_gp57_high, fill = condition_group)) +
  geom_col(position = position_dodge(width = 0.72), width = 0.62, color = "grey20", linewidth = 0.25) +
  geom_text(
    aes(label = paste0(scales::percent(proportion_gp57_high, accuracy = 0.1), "\n", n_gp57_high, "/", n_cells)),
    position = position_dodge(width = 0.72), vjust = -0.25, size = 3.4, lineheight = 0.9
  ) +
  scale_y_continuous(labels = scales::percent_format(accuracy = 1), limits = c(0, gp57_ymax), expand = expansion(mult = c(0, 0.04))) +
  scale_fill_manual(values = c("Cancer" = "#C44E52", "Other conditions" = "#4C72B0")) +
  labs(x = NULL, y = "Proportion of activated cells", fill = "Condition", title = "GP57 loading > 0.1 in activated CD8 and CD4 cells") +
  theme_classic(base_size = 12) +
  theme(legend.position = "top", legend.title = element_text(face = "bold"), axis.text.x = element_text(face = "bold"), plot.title = element_text(face = "bold", hjust = 0.5))
ggsave(filename = paste0(figure_path, "s3f.pdf"), plot = p_s3f, width = 5.4, height = 4.2)

Version Author Date
5874416 Ziang Zhang 2026-09-10
c233cd8 Ziang Zhang 2026-09-09
d538aa2 Ziang Zhang 2026-07-28
7102598 Ziang Zhang 2026-07-27
6c1a613 Ziang Zhang 2026-07-27
bf7afcf Ziang Zhang 2026-07-27
ea3ecc2 Ziang Zhang 2026-07-27
78e3bba Ziang Zhang 2026-07-03
06b2461 Ziang Zhang 2026-07-02

Extended Data Fig. 3f. Bar plot showing the percentage of GP57-active cells among activated CD8+ and CD4+ T cells in cancer versus all other conditions.


sessionInfo()
R version 4.5.1 (2025-06-13)
Platform: aarch64-apple-darwin20
Running under: macOS Sequoia 15.6.1

Matrix products: default
BLAS:   /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib 
LAPACK: /Library/Frameworks/R.framework/Versions/4.5-arm64/Resources/lib/libRlapack.dylib;  LAPACK version 3.12.1

locale:
[1] en_CA/en_CA/en_CA/C/en_CA/en_CA

time zone: America/Chicago
tzcode source: internal

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

loaded via a namespace (and not attached):
 [1] vctrs_0.7.3     cli_3.6.6       knitr_1.50      rlang_1.2.0    
 [5] xfun_0.55       stringi_1.8.9   otel_0.2.0      promises_1.5.0 
 [9] jsonlite_2.0.0  workflowr_1.7.2 glue_1.8.1      rprojroot_2.1.1
[13] git2r_0.36.2    htmltools_0.5.9 httpuv_1.6.16   sass_0.4.10    
[17] rmarkdown_2.30  evaluate_1.0.5  jquerylib_0.1.4 tibble_3.3.0   
[21] fastmap_1.2.0   yaml_2.3.12     lifecycle_1.0.5 whisker_0.4.1  
[25] stringr_1.6.0   compiler_4.5.1  fs_1.6.6        Rcpp_1.1.1-1.1 
[29] pkgconfig_2.0.3 later_1.4.4     digest_0.6.39   R6_2.6.1       
[33] pillar_1.11.1   magrittr_2.0.5  bslib_0.9.0     tools_4.5.1    
[37] cachem_1.1.0