How to convert transcript-relative coordinates to genomic coordinates?

Question

[adixon3]

I have queried using Entrez Utilities (efetch: https://www.ncbi.nlm.nih.gov/books/NBK25499/) and obtained annotations for transcripts like the following:

>Feature ref|NM_152486.3|

1 2557 gene

        gene    SAMD11

        gene_syn    MRS

        gene_desc   sterile alpha motif domain containing 11

        db_xref GeneID:148398

        db_xref HGNC:HGNC:28706

        db_xref MIM:616765

How/what database should I query to get the proper genomic coordinates for this gene and convert the transcript coordinates to absolute genomic coordinates?

IMPORTANT!: many of these transcripts are out of date, so just getting a table from UCSC is out of the question (unless transcript ID doesn't matter for getting genomic coordinates...)

Thanks!

[vkkodali_ncbi]

You will need to find the annotation release when the RefSeq was last annotated and extract that information from the GFF3/GTF files for that annotation. Since this is a human gene, which version of the genome are you interested: GRCh38/hg38 or GRCh37/hg19?