diff --git a/classroom_data/marker_genes.json b/classroom_data/marker_genes.json
index 2cf64f5..ae1f681 100644
--- a/classroom_data/marker_genes.json
+++ b/classroom_data/marker_genes.json
@@ -1,80 +1,28 @@
 {
-    "CD14+ Mono": ["FCN1", "CD14"],
-    "CD16+ Mono": ["TCF7L2", "FCGR3A", "LYN"],
-    "ID2-hi myeloid prog": [
-        "CD14",
-        "ID2",
-        "VCAN",
-        "S100A9",
-        "CLEC12A",
-        "KLF4",
-        "PLAUR"
-    ],
-    "cDC1": ["CLEC9A", "CADM1"],
-    "cDC2": [
-        "CST3",
-        "COTL1",
-        "LYZ",
-        "DMXL2",
-        "CLEC10A",
-        "FCER1A"
-    ], 
-    "Normoblast": ["SLC4A1", "SLC25A37", "HBB", "HBA2", "HBA1", "TFRC"],
-    "Erythroblast": ["MKI67", "HBA1", "HBB"],
-    "Proerythroblast": [
-        "CDK6",
-        "SYNGR1",
-        "HBM",
-        "GYPA"
-    ],
-    "NK": ["GNLY", "NKG7", "CD247", "GRIK4", "FCER1G", "TYROBP", "KLRG1", "FCGR3A"],
-    "ILC": ["ID2", "PLCG2", "GNLY", "SYNE1"],
-    "Lymph prog": [
-        "VPREB1",
-        "MME",
-        "EBF1",
-        "SSBP2",
-        "BACH2",
-        "CD79B",
-        "IGHM",
-        "PAX5",
-        "PRKCE",
-        "DNTT",
-        "IGLL1"
-    ],
-    "Naive CD20+ B": ["MS4A1", "IL4R", "IGHD", "FCRL1", "IGHM"],
-    "B1 B": [
-        "MS4A1",
-        "SSPN",
-        "ITGB1",
-        "EPHA4",
-        "COL4A4",
-        "PRDM1",
-        "IRF4",
-        "CD38",
-        "XBP1",
-        "PAX5",
-        "BCL11A",
-        "BLK",
-        "IGHD",
-        "IGHM",
-        "ZNF215"
-    ],
-    "Transitional B": ["MME", "CD38", "CD24", "ACSM3", "MSI2"],
-    "Plasma cells": ["MZB1", "HSP90B1", "FNDC3B", "PRDM1", "IGKC", "JCHAIN"],
-    "Plasmablast": ["XBP1", "RF4", "PRDM1", "PAX5"],
-    "CD4+ T activated": ["CD4", "IL7R", "TRBC2", "ITGB1"],
-    "CD4+ T naive": ["CD4", "IL7R", "TRBC2", "CCR7"],
-    "CD8+ T": ["CD8A", "CD8B", "GZMK", "GZMA", "CCL5", "GZMB", "GZMH", "GZMA"],
-    "T activation": ["CD69", "CD38"],
-    "T naive": ["LEF1", "CCR7", "TCF7"],
-    "pDC": ["GZMB", "IL3RA", "COBLL1", "TCF4"],
-    "G/M prog": ["MPO", "BCL2", "KCNQ5", "CSF3R"],
-    "HSC": ["NRIP1", "MECOM", "PROM1", "NKAIN2", "CD34"],
-    "MK/E prog": [
-        "ZNF385D",
-        "ITGA2B",
-        "RYR3",
-        "PLCB1"
-    ]
+  "CD14+ Mono": ["FCN1", "CD14"],
+  "CD16+ Mono": ["TCF7L2", "FCGR3A", "LYN"],
+  "cDC2": ["CST3", "COTL1", "LYZ", "DMXL2", "CLEC10A", "FCER1A"],
+  "Erythroblast": ["MKI67", "HBA1", "HBB"],
+  "Proerythroblast": ["CDK6", "SYNGR1", "HBM", "GYPA"],
+  "NK": ["GNLY", "NKG7", "CD247", "FCER1G", "TYROBP", "KLRG1", "FCGR3A"],
+  "ILC": ["ID2", "PLCG2", "GNLY", "SYNE1"],
+  "Naive CD20+ B": ["MS4A1", "IL4R", "IGHD", "FCRL1", "IGHM"],
+  "B cells": [
+      "MS4A1",
+      "ITGB1",
+      "COL4A4",
+      "PRDM1",
+      "IRF4",
+      "PAX5",
+      "BCL11A",
+      "BLK",
+      "IGHD",
+      "IGHM"
+  ],
+  "Plasma cells": ["MZB1", "HSP90B1", "FNDC3B", "PRDM1", "IGKC", "JCHAIN"],
+  "Plasmablast": ["XBP1", "PRDM1", "PAX5"],
+  "CD4+ T": ["CD4", "IL7R", "TRBC2"],
+  "CD8+ T": ["CD8A", "CD8B", "GZMK", "GZMA", "CCL5", "GZMB", "GZMH", "GZMA"],
+  "T naive": ["LEF1", "CCR7", "TCF7"],
+  "pDC": ["GZMB", "IL3RA", "COBLL1", "TCF4"]
 }
\ No newline at end of file