---

type: genome

filename: hg19.fa.bgz

chrom_prefix: "chr"

meta:
  summary: |
    Nucleotide sequence of the GRCh37/hg19 genome assembly from UCSC

  description: |
    Nucleotide sequence of the GRCh37/hg19 genome assembly from UCSC. This assembly is an earlier human reference genome release widely used in genetic and genomic studies, with UCSC-style chromosome names such as chr1, chr2, chrX, chrY, and chrM.

    Downloaded on 6/12/2026
    
    [https://hgdownload.soe.ucsc.edu/goldenPath/hg19/bigZips/hg19.fa.gz](https://hgdownload.soe.ucsc.edu/goldenPath/hg19/bigZips/hg19.fa.gz)
    
    Processing Details: 

    `build.sh` converts the downloaded `hg19.fa.gz` file from regular gzip compression to bgzip compression, then runs `samtools faidx` to create the required FASTA and bgzip index files. The original `hg19.fa.gz` file is removed, leaving only `hg19.fa.bgz`, `hg19.fa.bgz.fai`, and `hg19.fa.bgz.gzi` in the resource directory.

  
  labels: ~