Q (haiku): I'm interested in IDH1 in lower grade glioma. What can we look at? In Brain Lower Grade Glioma (TCGA, PanCancer Atlas), IDH1 is mutated in most tumors. A few directions: 1. Compare overall survival of IDH1-mutant vs IDH1-wild-type patients 2. See which genes are co-mutated with IDH1 (e.g. TP53, ATRX, CIC) 3. Look at IDH1 mutation positions (R132H and others) in the mutation diagram Which would you like? Continue this conversation: reply to the user's new message. option 1 please ▶ resolve_and_route { "studyKeywords": [ "lower grade glioma", "TCGA" ] } ◀ result {"success":true,"message":"Found 2 matching studies. Pick the best match (prefer TCGA → prefer PanCancer Atlas), use its metadata to call the appropriate navigation tool(s) and generate URLs immediately. Present other studies as alternatives.","data":{"totalCount":2,"studiesWithMetadata":[{"studyId":"lgg_tcga","name":"Brain Lower Grade Glioma (TCGA, Firehose Legacy)","sampleCount":530,"studyViewUrl":"https://www.cbioportal.org/study?id=lgg_tcga","metadata":{"clinicalAttributeIds":["AGE","ANIMAL_INSECT_ALLERGY_AGE","ANIMAL_INSECT_ALLERGY_HIST","ASTHMA_ECZEMA_ALLERGY_FIRST_DIAGNOSIS","ASTHMA_HISTORY","CANCER_TYPE","CANCER_TYPE_DETAILED","DAYS_TO_COLLECTION","DAYS_TO_INITIAL_PATHOLOGIC_DIAGNOSIS","DAYS_TO_SPECIMEN_COLLECTION","DFS_MONTHS","DFS_STATUS","DISEASE_CODE","ECOG_SCORE","ECZEMA_HISTORY","ETHNICITY","FAMILY_HISTORY_OF_CANCER","FAMILY_HISTORY_OF_PRIMARY_BRAIN_TUMOR","FIRST_SYMPTOM_LONGEST_DURATION","FOOD_ALLERGY_AGE","FOOD_ALLERGY_HISTORY","FOOD_ALLERGY_TYPES","FORM_COMPLETION_DATE","FRACTION_GENOME_ALTERED","GRADE","HAY_FEVER_HISTORY","HEADACHE_HISTORY","HISTOLOGICAL_DIAGNOSIS","HISTORY_IONIZING_RT_TO_HEAD","HISTORY_NEOADJUVANT_MEDICATION","HISTORY_NEOADJUVANT_STEROID_TX","HISTORY_NEOADJUVANT_TRTYN","HISTORY_OTHER_MALIGNANCY","ICD_10","ICD_O_3_HISTOLOGY","ICD_O_3_SITE","IDH1_MUTATION","IDH1_MUTATION_TEST_INDICATOR","IDH1_MUTATION_TEST_METHOD","INFORMED_CONSENT_VERIFIED","INHERITED_GENETIC_SYNDROME_INDICATOR","INHERITED_GENETIC_SYNDROME_SPECIFIED","INITIAL_PATHOLOGIC_DX_YEAR","IS_FFPE","KARNOFSKY_PERFORMANCE_SCORE","LATERALITY","LONGEST_DIMENSION","METHOD_OF_SAMPLE_PROCUREMENT","MOLD_OR_DUST_ALLERGY_HISTORY","MUTATION_COUNT","NEW_TUMOR_EVENT_AFTER_INITIAL_TREATMENT","OCT_EMBEDDED","ONCOTREE_CODE","OS_MONTHS","OS_STATUS","OTHER_METHOD_OF_SAMPLE_PROCUREMENT","OTHER_PATIENT_ID","OTHER_SAMPLE_ID","PATHOLOGY_REPORT_FILE_NAME","PATHOLOGY_REPORT_UUID","PERFORMANCE_STATUS_DAYS_TO","PERFORMANCE_STATUS_TIMING","PROJECT_CODE","PROSPECTIVE_COLLECTION","RACE","RADIATION_TREATMENT_ADJUVANT","RELATED_SYMPTOM_FIRST_PRESENT","RETROSPECTIVE_COLLECTION","SAMPLE_COUNT","SAMPLE_INITIAL_WEIGHT","SAMPLE_TYPE","SAMPLE_TYPE_ID","SEIZURE_HISTORY","SEX","SHORTEST_DIMENSION","SITE_OF_TUMOR_TISSUE","SOMATIC_STATUS","SPECIMEN_CURRENT_WEIGHT","SPECIMEN_FREEZING_METHOD","SPECIMEN_SECOND_LONGEST_DIMENSION","SUPRATENTORIAL_LOCALIZATION","SYMP_CHANGES_MENTAL_STATUS","SYMP_CHANGES_MOTOR_MOVEMENT","SYMP_CHANGES_SENSORY","SYMP_CHANGES_VISUAL","TARGETED_MOLECULAR_THERAPY","TIME_BETWEEN_CLAMPING_AND_FREEZING","TIME_BETWEEN_EXCISION_AND_FREEZING","TISSUE_SOURCE_SITE","TMB_NONSYNONYMOUS","TREATMENT_OUTCOME_FIRST_COURSE","TUMOR_SITE","TUMOR_STATUS","VIAL_NUMBER"],"molecularProfileIds":["lgg_tcga_gistic","lgg_tcga_linear_CNA","lgg_tcga_methylation_hm450","lgg_tcga_mrna","lgg_tcga_mrna_median_Zscores","lgg_tcga_mrna_median_all_sample_Zscores","lgg_tcga_mutations","lgg_tcga_rna_seq_v2_mrna","lgg_tcga_rna_seq_v2_mrna_median_Zscores","lgg_tcga_rna_seq_v2_mrna_median_all_sample_Zscores","lg … (2867 more chars) ▶ navigate_to_group_comparison { "studyIds": [ "lgg_tcga_pan_can_atlas_2018" ], "tab": "survival", "groups": [ { "name": "IDH1 Mutant", "studyViewFilter": { "geneFilters": [ { "molecularProfileIds": [ "lgg_tcga_pan_can_atlas_2018_mutations" ], "geneQueries": [ [ { "hugoGeneSymbol": "IDH1" } ] ] } ] } }, { "name": "IDH1 Wild-type", "studyViewFilter": { "geneFilters": [ { "molecularProfileIds": [ "lgg_tcga_pan_can_atlas_2018_mutations" ], "geneQueries": [ [ { "hugoGeneSymbol": "IDH1" } ] ], "alterations": [] } ] }, "isUnselected": true } ] } ◀ result {"success":false,"error":"Bad Request","details":{"status":400,"response":{"req":{"method":"POST","url":"https://www.cbioportal.org/api/filtered-samples/fetch","data":{"geneFilters":[{"molecularProfileIds":["lgg_tcga_pan_can_atlas_2018_mutations"],"geneQueries":[[{"hugoGeneSymbol":"IDH1"}]],"alterations":[]}],"studyIds":["lgg_tcga_pan_can_atlas_2018"]},"headers":{"user-agent":"node-superagent/3.8.3","accept":"application/json","content-type":"application/json"}},"header":{"cache-control":"no-cache, no-store, max-age=0, must-revalidate","content-encoding":"gzip","content-type":"application/json","date":"Fri, 25 Sep 2026 14:08:45 GMT","elapsed-time":"3","expires":"0","pragma":"no-cache","strict-transport-security":"max-age=31536000 ; includeSubDomains","vary":"origin,access-control-request-method,access-control-request-headers,accept-encoding","x-content-type-options":"nosniff","x-frame-options":"DENY","x-xss-protection":"0","connection":"close","transfer-encoding":"chunked"},"status":400,"text":"{\"message\":\"There is an error in the JSON format of the request payload\"}"}}} ▶ navigate_to_group_comparison { "studyIds": [ "lgg_tcga_pan_can_atlas_2018" ], "tab": "survival", "groups": [ { "name": "IDH1 Mutant", "studyViewFilter": { "geneFilters": [ { "molecularProfileIds": [ "lgg_tcga_pan_can_atlas_2018_mutations" ], "geneQueries": [ [ { "hugoGeneSymbol": "IDH1" } ] ] } ] } }, { "name": "IDH1 Wild-type", "isUnselected": true } ] } ◀ result {"success":true,"message":"Navigating to https://www.cbioportal.org/comparison/survival?comparisonId=6ab6806fc2115c492d884f84","url":"https://www.cbioportal.org/comparison/survival?comparisonId=6ab6806fc2115c492d884f84","data":{"description":"Group comparison (2 custom groups)","studies":["lgg_tcga_pan_can_atlas_2018"],"totalGroups":2,"groups":[{"name":"IDH1 Mutant","sampleCount":395},{"name":"IDH1 Wild-type","sampleCount":119}],"studyViewUrl":"https://www.cbioportal.org/study?id=lgg_tcga_pan_can_atlas_2018","groupUrls":[{"groupName":"IDH1 Mutant","url":"https://www.cbioportal.org/study?id=lgg_tcga_pan_can_atlas_2018#filterJson=%7B%22geneFilters%22%3A%5B%7B%22molecularProfileIds%22%3A%5B%22lgg_tcga_pan_can_atlas_2018_mutations%22%5D%2C%22geneQueries%22%3A%5B%5B%7B%22hugoGeneSymbol%22%3A%22IDH1%22%7D%5D%5D%7D%5D%7D"}],"pageDescription":"Kaplan-Meier survival analysis comparing IDH1 Mutant (395) vs IDH1 Wild-type (119)."}} ═ answer (success) Perfect! Here's your survival comparison: **[View IDH1 Survival Analysis](https://www.cbioportal.org/comparison/survival?comparisonId=6ab6806fc2115c492d884f84)** **Group sizes:** - **IDH1 Mutant:** 395 samples - **IDH1 Wild-type:** 119 samples The Kaplan-Meier survival curves will show overall survival (OS) outcomes for each group. In lower grade glioma, IDH1 mutations are strongly associated with improved prognosis — you should see a noticeable survival advantage in the mutant group.