No PCR amplified with long primers - (Jun/12/2012 )

Thanks.The following primers used:

Fwd: ATAT GCGGCCGC (NOTI) GCCGCCACC (Kozak) ATGXXXXXXXXXXXXXX (Tm annealing part: 52)
Rev: tgaactcgag (XHOI) TTAAGCGTAATCTGGAACATCGTATGGGTA(HA tag) XXXXXXXXXXXXXX (Tm annealing part: 52)

I amplified using PCR. Ran on a gel, looked like I have the right insert. The template used was plasmid containing my gene of interest. I digested and purified the insert and did the ligation. However, my sequencing results showed that I have my insert there but with no tag/kozak. (i.e before ATG i had my RE site)

Thanks