Overview
DUSP2 functions as a negative regulator of MAPK signaling,
particularly affecting the ERK1/2 pathway. DUSP2 mutations have been
reported in nodular lymphocyte predominant Hodgkin lymphoma (NLPHL),
T-cell/histiocyte-rich large B-cell lymphoma (T/HRLBCL)1,2 and they are relatively frequent
in DLBCL.
DUSP2 is one of a
number of genes affected by aberrant somatic hypermutation in B-cell
lymphomas, which complicates the interpretation of mutations at this
locus. These mutations are associated with the ST2 genetic subgroup of
DLBCL. This gene has some recurrent sites of mutations (hot spots). The
mutation pattern in DLBCL implies the preferential accumulation of
inactivating mutations.
Relevance tier by entity
Cannot include /table1_DUSP2.md - does not exist yet
Mutation incidence in large patient cohorts (GAMBL reanalysis)
| Entity | Collection | N | mutated | Incidence | 95% CI |
|---|---|---|---|---|---|
| DLBCL | GAMBL without Reddy | 1,089 | 103 | 0.0946 | [0.0772,0.112] |
| DLBCL | GAMBL with Reddy | 2,088 | 200 | 0.0958 | [0.0832,0.1084] |
| DLBCL | BC | 231 | 21 | 0.0909 | [0.0538,0.128] |
| DLBCL | Dana-Farber | 303 | 13 | 0.0429 | [0.0201,0.0657] |
| DLBCL | NCI | 470 | 59 | 0.1255 | [0.0956,0.1555] |
| DLBCL | Reddy | 999 | 97 | 0.0971 | [0.0787,0.1155] |
| DLBCL | DLBCL_ICGC | 85 | 10 | 0.1176 | [0.0492,0.1861] |
| pathology | Collection | N | mutated | Incidence | CI |
|---|---|---|---|---|---|
| FL | GAMBL without Crouch | 642 | 13 | 0.0202 | [0.0094,0.0311] |
| FL | GAMBL with Crouch | 1,189 | 13 | 0.0109 | [0.005,0.0168] |
| FL | BC | 379 | 7 | 0.0185 | [0.0049,0.032] |
| FL | Kalmbach | 164 | 3 | 0.0183 | [0,0.0388] |
| FL | Crouch | 547 | 0 | 0.0002 | [0,0.0013] |
| FL | FL_ICGC | 99 | 3 | 0.0303 | [0,0.0641] |
Mutation pattern and selective pressure estimates
| Entity | Missense dN/dS | Nonsense dN/dS | Q value |
|---|---|---|---|
| BL | 1.4723 | 16.4546 | 1 |
| FL | 3.0082 | 6.2264 | 1 |
| DLBCL | 0.8137 | 5.4445 | 0 |
aSHM regions
| chr_name | hg19_start | hg19_end | region | regulatory_comment |
|---|---|---|---|---|
| chr2 | 96808901 | 96811913 | intron-1 | enhancer |
DUSP2 Hotspots
| Chromosome | Coordinate (hg19) | ref>alt | HGVSp |
|---|---|---|---|
| chr2 | 96810877 | C>G | D73H |
| chr2 | 96810865 | G>A | R77W |
| chr2 | 96810842 | C>G | E84D |
| chr2 | 96810841 | G>C | L85V |
| chr2 | 96810730 | G>A | P122S |
| chr2 | 96810717 | T>C | Y126C |
| chr2 | 96810706 | C>T | G130R |
| chr2 | 96810597 | C>T | C138Y |
| chr2 | 96810582 | C>T | C143Y |
| chr2 | 96810574 | C>T | A146T |
Cannot include /browser_DUSP2.md - does not exist yet
Expression
Cannot include /mermaid_DUSP2.md - does not exist yet


