makeFeatureDbFromUCSC   Making a FeatureDb object from annotations
                        available at the UCSC Genome Browser
makeTxDb                Making a TxDb object from user supplied
                        annotations
makeTxDbFromBiomart     Make a TxDb object from annotations available
                        on a BioMart database
makeTxDbFromEnsembl     Make a TxDb object from an Ensembl database
makeTxDbFromGFF         Make a TxDb object from annotations available
                        as a GFF3 or GTF file
makeTxDbFromGRanges     Make a TxDb object from a GRanges object
makeTxDbFromUCSC        Make a TxDb object from annotations available
                        at the UCSC Genome Browser
makeTxDbPackage         Making a TxDb package from annotations
                        available at the UCSC Genome Browser, biomaRt
                        or from another source.
txdbmaker-package       Tools for making TxDb objects from genomic
                        annotations
