I personally prefer to get annotations directly from GENCODE. That way you do not have to rely on any annotation packages. For human hg19 that would be:
library(rtracklayer)
#/ URL to GENCODE GTF, from: https://www.gencodegenes.org/human/release_19.html
url <- "https://ftp.ebi.ac.uk/pub/databases/gencode/Gencode_human/release_19/gencode.v19.annotation.gtf.gz"
#/ load GTF, output directly as GRanges:
gr <- rtracklayer::import(url)
#/ subset to transcripts only:
gr[gr$type=="transcript"]
GRanges object with 196520 ranges and 21 metadata columns:
seqnames ranges strand | source type score phase gene_id transcript_id
<Rle> <IRanges> <Rle> | <factor> <factor> <numeric> <integer> <character> <character>
[1] chr1 11869-14409 + | HAVANA transcript NA <NA> ENSG00000223972.4 ENST00000456328.2
[2] chr1 11872-14412 + | ENSEMBL transcript NA <NA> ENSG00000223972.4 ENST00000515242.2
[3] chr1 11874-14409 + | ENSEMBL transcript NA <NA> ENSG00000223972.4 ENST00000518655.2
[4] chr1 12010-13670 + | HAVANA transcript NA <NA> ENSG00000223972.4 ENST00000450305.2
[5] chr1 14363-29370 - | ENSEMBL transcript NA <NA> ENSG00000227232.4 ENST00000438504.2
... ... ... ... . ... ... ... ... ... ...
[196516] chrM 14149-14673 - | ENSEMBL transcript NA <NA> ENSG00000198695.2 ENST00000361681.2
[196517] chrM 14674-14742 - | ENSEMBL transcript NA <NA> ENSG00000210194.1 ENST00000387459.1
[196518] chrM 14747-15887 + | ENSEMBL transcript NA <NA> ENSG00000198727.2 ENST00000361789.2
[196519] chrM 15888-15953 + | ENSEMBL transcript NA <NA> ENSG00000210195.2 ENST00000387460.2
[196520] chrM 15956-16023 - | ENSEMBL transcript NA <NA> ENSG00000210196.2 ENST00000387461.2
gene_type gene_status gene_name transcript_type transcript_status transcript_name level
<character> <character> <character> <character> <character> <character> <character>
[1] pseudogene KNOWN DDX11L1 processed_transcript KNOWN DDX11L1-002 2
[2] pseudogene KNOWN DDX11L1 transcribed_unproces.. KNOWN DDX11L1-201 3
[3] pseudogene KNOWN DDX11L1 transcribed_unproces.. KNOWN DDX11L1-202 3
[4] pseudogene KNOWN DDX11L1 transcribed_unproces.. KNOWN DDX11L1-001 2
[5] pseudogene KNOWN WASH7P unprocessed_pseudogene KNOWN WASH7P-202 3
... ... ... ... ... ... ... ...
[196516] protein_coding KNOWN MT-ND6 protein_coding KNOWN MT-ND6-201 3
[196517] Mt_tRNA KNOWN MT-TE Mt_tRNA KNOWN MT-TE-201 3
[196518] protein_coding KNOWN MT-CYB protein_coding KNOWN MT-CYB-201 3
[196519] Mt_tRNA KNOWN MT-TT Mt_tRNA KNOWN MT-TT-201 3
[196520] Mt_tRNA KNOWN MT-TP Mt_tRNA KNOWN MT-TP-201 3
havana_gene tag havana_transcript exon_number exon_id ont protein_id
<character> <character> <character> <character> <character> <character> <character>
[1] OTTHUMG00000000961.2 basic OTTHUMT00000362751.1 <NA> <NA> <NA> <NA>
[2] OTTHUMG00000000961.2 <NA> <NA> <NA> <NA> <NA> <NA>
[3] OTTHUMG00000000961.2 <NA> <NA> <NA> <NA> <NA> <NA>
[4] OTTHUMG00000000961.2 <NA> OTTHUMT00000002844.2 <NA> <NA> PGO:0000019 <NA>
[5] OTTHUMG00000000958.1 <NA> <NA> <NA> <NA> <NA> <NA>
... ... ... ... ... ... ... ...
[196516] <NA> appris_principal <NA> <NA> <NA> <NA> ENSP00000354665.2
[196517] <NA> basic <NA> <NA> <NA> <NA> <NA>
[196518] <NA> appris_principal <NA> <NA> <NA> <NA> ENSP00000354554.2
[196519] <NA> basic <NA> <NA> <NA> <NA> <NA>
[196520] <NA> basic <NA> <NA> <NA> <NA> <NA>
ccdsid
<character>
[1] <NA>
[2] <NA>
[3] <NA>
[4] <NA>
[5] <NA>
... ...
[196516] <NA>
[196517] <NA>
[196518] <NA>
[196519] <NA>
[196520] <NA>
-------
seqinfo: 25 sequences from an unspecified genome; no seqlengths
