Variation in Ensembl Chromosome ID
Hi, I've been parsing through some Ensembl CDS files (using BioPython), and I'm getting some variation in how the chromosome ID is specified. Typically it is specified like this: "chromosome:GRCh38:7:142786213:142786224:1". However, other times it is specified like this: 'chromosome:GRCh38:CHR_HSCHR7_2_CTG6:142847306:142847317:1'. Why is this variation present? What does 'CHR_HSCHR7_2_CTG6' specify exactly? Thanks for any clarification or help.
1 answer
That is a haplotype sequence, check https://www.ensembl.org/Help/Faq?id=291 for more information
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