684ad73a17eebb717fba52f0aa25f3d9d7adb2de
max
  Thu Sep 3 12:03:37 2026 -0700
New Imprinting track collection on hg38, first subtrack is MethBase2 ASM

Adds the "Imprinting" superTrack to the Regulation group and its first
subtrack, the allele-specific methylation summary from the MethBase2 hub
(http://smithlab.usc.edu/trackdata/methylation/hub.txt). The bigWig gives,
for each of 29,401,795 CpG sites, the fraction of MethBase2 human methylomes
in which the site fell inside an allelically methylated region called by
dnmtools amrfinder. Taken from upstream unchanged.

Alpha only for now, refs #37599

diff --git src/hg/makeDb/trackDb/human/hg38/imprinting.ra src/hg/makeDb/trackDb/human/hg38/imprinting.ra
new file mode 100644
index 00000000000..be33989607a
--- /dev/null
+++ src/hg/makeDb/trackDb/human/hg38/imprinting.ra
@@ -0,0 +1,25 @@
+track imprinting
+shortLabel Imprinting
+longLabel Genomic imprinting: allele-specific methylation and imprinted regions
+group regulation
+superTrack on
+priority 3.5
+
+    track methBaseAsm
+    parent imprinting on
+    shortLabel MethBase2 ASM
+    longLabel Imprinting: fraction of MethBase2 methylomes with allele-specific methylation at each CpG
+    type bigWig 0 1
+    bigDataUrl /gbdb/hg38/imprinting/methBaseAsm/hg38.asm.bw
+    visibility full
+    priority 1
+    color 255,64,64
+    autoScale off
+    viewLimits 0:0.5
+    viewLimitsMax 0:1
+    maxHeightPixels 100:40:8
+    alwaysZero on
+    yLineOnOff on
+    yLineMark 0
+    windowingFunction mean
+    dataVersion MethBase2 hg38 ASM, 2025-07-14