How to check exon count of gene?

Question

[9521ljh]

ARHGAP35 is + strand, thus i saw the lowest transcript_id and count exon number.

In gtf(hg19) file, the exon number of ARHGAP35 gene is 6.

https://ibb.co/bFDKszP

However, in NCBI database the exon count is 9.

https://www.ncbi.nlm.nih.gov/gene/2909

What am i missing something to understand..?

Answer 1

[27atcggcta27]

Where did you get this gtf file? if it is a file you generated you may not have those exons

[9521ljh]

i downloaded gtf file here: ftp://ftp.ensembl.org/pub/grch37/current/gtf/homo_sapiens/Homo_sapiens.GRCh37.87.gtf

[9521ljh]

is it update problem?