Add new CountESS tutorial

CONTRIBUTORS.yaml

@@ -148,6 +148,10 @@ afgane:
     name: Enis Afgan
     joined: 2018-06
 
+afrubin:
+    name: Alan Rubin
+    joined: 2026-05
+
 aisanjiangw:
     name: Aisanjiang Wubuli
     joined: 2017-09
@@ -3151,6 +3155,10 @@ NickSto:
     twitter: NickStoler
     joined: 2018-07
 
+nickzoic:
+    name: Nick Moore
+    joined: 2026-05
+
 njall:
     name: Niall Beard
     joined: 2019-02

topics/variant-analysis/tutorials/countess-mave-chek2/data-library.yaml

@@ -0,0 +1,23 @@
+---
+destination:
+  type: library
+  name: GTN - Material
+  description: Galaxy Training Network Material
+  synopsis: Galaxy Training Network Material. See https://training.galaxyproject.org
+items:
+- name: Variant Analysis
+  description: Materials for variant analysis tutorials
+  items:
+  - name: Calculating CHEK2 variant effect scores from MAVE data with CountESS
+    items:
+    - name: 'DOI: 10.5281/zenodo.20250971'
+      description: latest
+      items:
+      - url: https://zenodo.org/records/20250971/files/chek2_frequency_summary.csv
+        src: url
+        ext: csv
+        info: https://doi.org/10.5281/zenodo.20250971
+      - url: https://zenodo.org/records/20250971/files/chek2_rcs_countess.ini
+        src: url
+        ext: txt
+        info: https://doi.org/10.5281/zenodo.20250971

topics/variant-analysis/tutorials/countess-mave-chek2/tutorial.bib

@@ -0,0 +1,19 @@
+@article{McCarthyLeo2024,
+  title = {Comprehensive analysis of the functional impact of single nucleotide variants of human CHEK2},
+  author = {McCarthy-Leo, Claire E. and Brush, George S. and Pique-Regi, Roger and Luca, Francesca and Tainsky, Michael A. and Finley, Russell L.},
+  year = {2024},
+  month = aug,
+  journal = {PLOS Genetics},
+  volume = {20},
+  number = {8},
+  pages = {e1011375},
+  doi = {10.1371/journal.pgen.1011375},
+  url = {https://doi.org/10.1371/journal.pgen.1011375}
+}
+
+@online{MaveDBCHEK2,
+  title = {Rad53 complementation scores for coding SNVs of human CHEK2},
+  author = {{MaveDB}},
+  url = {https://mavedb.org/score-sets/urn:mavedb:00001203-a-2},
+  urldate = {2026-05-17}
+}