Hi can anyone tell me why I am getting duplicate gene Ids in NCBI...The same gene Id exist several time..what is the reason behind this?
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sharma_tina189059 •
2 answers
We've found there are some genes that have the same name, but on different chromosomes. Not sure if this is what you are referring to or not.
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matt.newman
Please write here the gene ID number
http://www.ncbi.nlm.nih.gov/gene/3581
Found on both X and Y chromosomes.
Another one: http://www.ncbi.nlm.nih.gov/gene/653440
I thought we found some others previously, but those are the quick ones I could dig up. We have a tool for building custom gene model (transcript libraries) in our Array Suite package, and we had to build in some special logic for some counting algorithms.
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matt.newman
I think these genes have their origin in the evolution of the Y chromosome. There is an interesting video on this site that explains the process: http://www.hhmi.org/biointeractive/evolution-y-chromosome
Some other genes around WASH6P are present on both X and Y chromosomes.
Interesting, I was not aware of this. I recommend users read the Gene FAQ. It includes a section named "Multiple chromosomal locations", although what they describe there relates to annotation merges rather than the example of Gene 3581.
yes..u were right..thanku
i got the answer guys...the same genes were present on chromosome and plasmids that z y ncbi mentioned same gene ids several times
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Please supply an example of such ID
did you map against the proper organism?
You need to explain what you are doing more precisely, when you say "getting" and "exist". Getting from where and how?