Leucegene Normals
Last updated: 2020-06-11
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Knit directory: MINTIE-paper-analysis/
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These are the previous versions of the R Markdown and HTML files. If you’ve configured a remote Git repository (see ?wflow_git_remote), click on the hyperlinks in the table below to view them.
| File | Version | Author | Date | Message |
|---|---|---|---|---|
| html | a166ab8 | Marek Cmero | 2020-05-08 | Build site. |
| html | a600688 | Marek Cmero | 2020-05-07 | Build site. |
| html | 1c40e33 | Marek Cmero | 2020-05-07 | Build site. |
| Rmd | bbc278a | Marek Cmero | 2020-05-07 | Refactoring |
| html | 87b4e62 | Marek Cmero | 2020-05-07 | Build site. |
| Rmd | af503f2 | Marek Cmero | 2020-05-07 | Refactoring |
| html | 5c045b5 | Marek Cmero | 2020-05-07 | Build site. |
| html | 90c7fd9 | Marek Cmero | 2020-05-06 | Build site. |
| Rmd | ff4b1dc | Marek Cmero | 2020-05-06 | Leucegene results |
| html | 358aa53 | Marek Cmero | 2020-05-04 | Build site. |
| Rmd | 453d754 | Marek Cmero | 2020-05-04 | Added controls comparison in normals analysis. Added variant class collation function. Added variant summary for |
| html | 4a5d6ae | Marek Cmero | 2020-05-01 | Build site. |
| Rmd | 9556ebb | Marek Cmero | 2020-05-01 | Added leucegene normals analysis. Added expressed genes analysis to leucegene gene expression analysis. |
# util
library(data.table)
library(dplyr)
library(here)
library(stringr)
library(gt)
# plotting
library(ggplot2)options(stringsAsFactors = FALSE)source(here("code/leucegene_helper.R"))Leucegene Normals
Here we generate the results presented in the MINTIE paper, of the method run on a set of non-cancer samples obtained from Leucegene.
# load MINTIE results from leucegene normals
normals_results_dir <- here("data/leucegene/normals_results")
normals_results <- list.files(normals_results_dir, full.names = TRUE) %>%
lapply(., read.delim) %>%
rbindlist() %>%
filter(logFC > 5)
# load cell type info and add to results
celltype <- read.delim(here("data/leucegene/sample_info/celltypes_info.tsv"))
normals_results <- inner_join(normals_results, celltype,
by = c("sample" = "SRX_ID"))Variant Summary
Summary results for variants called by MINTIE on Leucegene normals.
normals_results %>%
group_by(sample) %>%
summarise(variants = length(unique(variant_id))) %>%
gt() %>%
tab_header(
title = md("**Variants called summary by sample**")
) %>%
tab_options(
table.font.size = 12
) %>%
cols_label(
variants = md("**Variants**")
)| Variants called summary by sample | |
|---|---|
| sample | Variants |
| SRX372044 | 182 |
| SRX372045 | 139 |
| SRX372046 | 220 |
| SRX372047 | 653 |
| SRX372048 | 1116 |
| SRX372049 | 144 |
| SRX372050 | 501 |
| SRX372051 | 450 |
| SRX372052 | 236 |
| SRX372053 | 77 |
| SRX372054 | 81 |
| SRX372055 | 165 |
| SRX372056 | 93 |
| SRX372057 | 116 |
| SRX372058 | 95 |
| SRX372059 | 149 |
| SRX372060 | 204 |
| SRX372061 | 139 |
| SRX372063 | 562 |
| SRX372064 | 130 |
| SRX372065 | 143 |
| SRX372066 | 211 |
| SRX372067 | 150 |
collate_vartypes(normals_results) %>%
group_by(class) %>%
summarise(variants = length(unique(variant_id))) %>%
mutate(fraction = variants / sum(variants)) %>%
gt() %>%
fmt_number(columns = vars(fraction), decimals = 3) %>%
tab_header(
title = md("**Variants called summary by class**")
) %>%
tab_options(
table.font.size = 12
) %>%
cols_label(
variants = md("**Variants**"),
fraction = md("**Fraction**")
)| Variants called summary by class | ||
|---|---|---|
| class | Variants | Fraction |
| Fusion | 69 | 0.012 |
| Novel splice variant | 2051 | 0.345 |
| Transcribed structural variant | 1234 | 0.207 |
| Unknown | 2596 | 0.436 |
Variant Genes
MINTIE paper Figure 4 showing the number of variant genes called across the Leucegene normal samples.
results_summary <- get_results_summary(mutate(normals_results, group_var = cell_type),
group_var_name = "cell_type")
ggplot(results_summary, aes(cell_type, V1, group=sample)) +
geom_bar(position = position_dodge2(width = 0.9, preserve = "single"), stat = "identity") +
theme_bw() +
xlab("") +
ylab("Genes with variants")
Library Size and Variant Number Correlation
Perform correlation calculation on the library size and number of variant genes found per sample.
Leucegene Gene Expression notebook must be run before this chunk to generate the expression counts matrix.
# load counts data, calculate library sizes and add to results summary
counts <- fread(here("output/Leucegene_gene_counts.tsv"))
libsizes <- apply(counts, 2, sum) %>% data.frame()
colnames(libsizes) <- "libsize"
libsizes$sample <- factor(rownames(libsizes),
levels = results_summary$sample)
results_summary <- left_join(results_summary, libsizes, by ="sample", "sample")
lib_var_cor <- cor(results_summary$libsize, results_summary$V1, method = "spearman")
print(paste("Spearman correlation between library size and variant genes called:", lib_var_cor))[1] "Spearman correlation between library size and variant genes called: 0.181863114027398"ggplot(results_summary, aes(libsize, V1, colour = cell_type)) +
geom_point() +
theme_bw() +
ylab("Genes with variants")
Protein Coding Genes
Proportion of protein coding genes observed in the MINTIE results.
# load CHESS gene reference containing gene types
chess_genes <- read.delim(gzfile(here("data/ref/chess2.2.genes.gz")))
# join gene info with results and summarise by gene type
results_by_gene <- get_results_by_gene(normals_results)
gene_count <- left_join(results_by_gene, chess_genes, by = c("gene" = "Gene_Name")) %>%
group_by(Gene_Type) %>%
summarise(n_genes = length(unique(gene))) %>%
data.table()
n_protein_coding <- gene_count[gene_count$Gene_Type == "protein_coding", "n_genes"]
print(paste("proportion of protein coding genes =", n_protein_coding / sum(gene_count$n_genes)))[1] "proportion of protein coding genes = 0.813534387642516"Controls Comparison
MINTIE Supplementary Figure 3 showing variant genes called in Leucegene Total White Blood Cell samples with different cell types as control groups.
# get TWBC results
controls_comp <- normals_results[normals_results$cell_type == "Total white blood cells",]
controls_comp$controls <- "twbc"
controls_comp$cell_type <- NULL
# load comparisons against all other controls
controls_test_dir <- here("data/leucegene/normals_controls_test_results")
controls_comp <- load_controls_comparison(controls_test_dir) %>%
rbind(controls_comp, .)
results_summary <- get_results_summary(mutate(controls_comp,
group_var = controls),
group_var_name = "controls")
results_summary %>%
gt() %>%
tab_header(
title = md("**Total variant genes called using different controls**")
) %>%
cols_label(
sample = md("**Sample**"),
controls = md("**Controls**"),
V1 = md("**Variant genes**")
)| Total variant genes called using different controls | ||
|---|---|---|
| Sample | Controls | Variant genes |
| SRX372045 | bc | 356 |
| SRX372044 | bc | 375 |
| SRX372046 | bc | 451 |
| SRX372045 | gran | 132 |
| SRX372046 | gran | 253 |
| SRX372044 | gran | 283 |
| SRX372045 | mono | 143 |
| SRX372044 | mono | 192 |
| SRX372046 | mono | 198 |
| SRX372044 | tc | 336 |
| SRX372045 | tc | 391 |
| SRX372046 | tc | 425 |
| SRX372045 | twbc | 156 |
| SRX372044 | twbc | 195 |
| SRX372046 | twbc | 240 |
ggplot(results_summary, aes(sample, V1, fill=controls)) +
geom_bar(position=position_dodge2(width=0.9, preserve="single"), stat="identity") +
theme_bw() +
xlab("") +
ylab("Genes with variants") +
scale_fill_brewer(palette = "RdYlBu",
labels = c("mono" = "Monocytes",
"twbc" = "Total white blood cells",
"gran" = "Granulocytes",
"tc" = "T-Cells",
"bc" = "B-Cells"))
sessionInfo()R version 3.6.1 (2019-07-05)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: CentOS Linux 7 (Core)
Matrix products: default
BLAS: /config/RStudio/R/3.6.1/lib64/R/lib/libRblas.so
LAPACK: /config/RStudio/R/3.6.1/lib64/R/lib/libRlapack.so
locale:
[1] LC_CTYPE=en_AU.UTF-8 LC_NUMERIC=C
[3] LC_TIME=en_AU.UTF-8 LC_COLLATE=en_AU.UTF-8
[5] LC_MONETARY=en_AU.UTF-8 LC_MESSAGES=en_AU.UTF-8
[7] LC_PAPER=en_AU.UTF-8 LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_AU.UTF-8 LC_IDENTIFICATION=C
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] ggplot2_3.3.1 gt_0.2.1 stringr_1.4.0 here_0.1
[5] dplyr_1.0.0 data.table_1.12.6
loaded via a namespace (and not attached):
[1] Rcpp_1.0.2 RColorBrewer_1.1-2 pillar_1.4.4
[4] compiler_3.6.1 git2r_0.26.1 workflowr_1.4.0
[7] tools_3.6.1 digest_0.6.21 evaluate_0.14
[10] lifecycle_0.2.0 tibble_3.0.1 gtable_0.3.0
[13] checkmate_2.0.0 pkgconfig_2.0.3 rlang_0.4.6
[16] commonmark_1.7 yaml_2.2.0 xfun_0.10
[19] withr_2.1.2 knitr_1.25 generics_0.0.2
[22] fs_1.4.1 vctrs_0.3.1 sass_0.2.0
[25] rprojroot_1.3-2 grid_3.6.1 tidyselect_1.1.0
[28] glue_1.4.1 R6_2.4.0 rmarkdown_1.16
[31] farver_2.0.3 purrr_0.3.2 magrittr_1.5
[34] whisker_0.4 backports_1.1.4 scales_1.1.1
[37] ellipsis_0.3.0 htmltools_0.4.0 colorspace_1.4-1
[40] labeling_0.3 stringi_1.4.3 munsell_0.5.0
[43] crayon_1.3.4