[ensembl-dev] tss differ from trasncript start site

[mag]

Hi Elena,

The transcript start/end represent the position of the transcript on the 
genome from left to right, with start always smaller than the end.
For this transcript, start is 8,934,984 and end is 8,935,481

The transcription start site (or TSS) represents the 5' position where 
the transcription is initiated.
If the transcript is on the positive strand, it will correspond to the 
transcript start.
If the transcript is on the negative strand, as is the case with your 
example, it will correspond to the the transcript end.


Hope that helps,
Magali

On 20/01/2015 11:40, Elena Grassi wrote:
> Hi
> using biomart I found that some transcripts have different values for
> TSS and Transcript Start (bp).
>
> Ensembl Gene ID |  Ensembl Transcript ID | Transcription Start Site
> (TSS) | Transcript Start (bp)
> ENSG00000276385 | ENST00000618935        | 8935481
>     | 8934984
>
> Is it correct?
> What is the difference between TSS and Transcript Start?
>
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