if we have "genes with the same HUGO ids but different Ensembl id" does it make sense to add up the raw count of those? ( for RNA expression or single cell analysis). Does it make sense to treat them as isoforms?
Question: HUGO and Ensembl ids
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rsafavi • 50 wrote:
2
EagleEye ♦ 6.8k wrote:
Hi,
Only last one is from chromosome 22 assembly. The first 2 are from the exception contigs (haplotype variant contigs). So there is a reason to assign different 'ENSG' names for them. I would say always use 'ENSG' ids as reference/indexing purpose, when you are working with ensembl annotation. In my opinion, if you are working with gene-level analysis, you always summarize based on 'ENSG' ids. For transcript-level/isoform-level analysis, you always summarize based on 'ENST' ids
Note:
ENSG: Genes ; ENST: TranscriptVariants/Isoforms ; ENSE: Exons ; ENSP: Proteins
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Please provide some examples.
Maybe I can give an example. I have RNAseq samples from human and I have differential expression of gene NDUFA6 like below:
As you can see, there are different ENS IDs (2 alternative sequence alignments and the last one is reference gene at the Ensembl website) for the same gene name. Usually, I do not get such different FCs for the alternative versions of the same gene but now it gets tricky. Should I integrate all alignments of the same gene name into one gene expression (for all such cases) and make the DE analysis again? Or how should I interpret this results?