With requesting http://www.cbioportal.org/webservice.do?cmd=getTypesOfCancerone may loop through a list of cancer types such as listing only those that are glioma related, while querying http://www.cbioportal.org/webservice.do?cmd=getMutationData&case_set_id=gbm_tcga_all&genetic_profile_id=gbm_tcga_mutations&gene_list=IDH1+TP53will request a set of mutation data with several details such as type, status, chromosome, start and end position among others. Here, IDH1 is linked to glioma.