Gene Variant Detail

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Gene MAP2K1
Variant I103N
Impact List missense
Protein Effect gain of function - predicted
Gene Variant Descriptions MAP2K1 I103N lies within the protein kinase domain of the Map2k1 protein (UniProt.org). I103N is predicted to confer a gain of function on the Map2k1 protein as demonstrated by increased Map2k1 autophosphorylation in cell culture (PMID: 29753091), and is also associated with resistance to Mek inhibitors (PMID: 12370306, PMID: 19915144).
Associated Drug Resistance Y

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Transcript NM_002755.3
gDNA chr15:g.66436762T>A
cDNA c.308T>A
Protein p.I103N
Source Database RefSeq
Genome Build GRCh38/hg38
Transcript gDNA cDNA Protein Source Database Genome Build
NM_002755 chr15:g.66436762T>A c.308T>A p.I103N RefSeq GRCh38/hg38
NM_002755.3 chr15:g.66436762T>A c.308T>A p.I103N RefSeq GRCh38/hg38
XM_017022411 chr15:g.66436762T>A c.308T>A p.I103N RefSeq GRCh38/hg38
XM_017022411.2 chr15:g.66436762T>A c.308T>A p.I103N RefSeq GRCh38/hg38

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Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
MAP2K1 I103N melanoma resistant CI-1040 Preclinical - Cell culture Actionable In a preclinical study, CI-1040 (PD184352) did not inhibit proliferation of melanoma cells expressing Map2k1 I103N (PMID: 19915144). 19915144
MAP2K1 I103N Advanced Solid Tumor decreased response CI-1040 Preclinical - Cell culture Actionable In a preclinical study, CI-1040 (PD184352) partially inhibited kinase activity of Map2k1 I103N expressed in transformed human kidney cells (PMID: 12370306). 12370306
MAP2K1 I103N melanoma resistant Selumetinib Preclinical - Cell culture Actionable In a preclinical study, Selumetinib (AZD6244) did not inhibit proliferation of melanoma cells expressing Map2k1 I103N (PMID: 19915144). 19915144
BRAF V600E MAP2K1 I103N melanoma sensitive DEL-22379 Preclinical - Cell culture Actionable In a preclinical study, DEL-22379 inhibited growth of a melanoma cell line harboring BRAF V600E and expressing MAP2K1 I103N in culture (PMID: 26267534). 26267534
BRAF V600E MAP2K1 I103N melanoma resistant PD-0325901 Preclinical Actionable In a preclinical study, over expression of MAPK21 I103N in melanoma cells harboring BRAF V600E resulted in insensitivity to growth inhibition by PD-0325901 in cell culture (PMID: 26267534). 26267534
Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
MAP2K1 mutant Erdheim-Chester disease sensitive Cobimetinib Guideline Actionable Cotellic (cobimetinib) is included in guidelines as preferred first-line or subsequent-line therapy for patients with Erdheim-Chester disease harboring mutations in the MAPK pathway such as ARAF, NRAS, KRAS, MAP2K1, PIK3CA, or with no detectable mutations, or for whom testing is not available (NCCN Guidelines). detail...
MAP2K1 mutant Erdheim-Chester disease sensitive Trametinib Guideline Actionable Mekinist (trametinib) is included in guidelines as first-line or subsequent-line therapy for patients with Erdheim-Chester disease harboring mutations in the MAPK pathway such as ARAF, NRAS, KRAS, MAP2K1, PIK3CA, or with no detectable mutations, or for whom testing is not available (NCCN Guidelines). detail...
Molecular Profile Protein Effect Treatment Approaches
MAP2K1 I103N gain of function - predicted
BRAF V600E MAP2K1 I103N