Appears different enough to be 2nd form.

>PutativePGS_second isoform

ACGCAACCTTAAGGATGCAGTCATTCAATCAGTACAGAAAGAGATTTGATATGGAGCCTTTCAAAGTCTTTTGAGGAACTGACTGGGGAAAAGAAATTTGCAAAGCAGCTTGAAGAATTCTATGGTGATATCAATGCTGTGGAATTTTATGTAGGAATGATGCTGGAGAAAAGACTTCGATTTGATTCATTGTTTTCGGCTACGGTTATACAGTTTGTCCTCTCCATTTTCTTATAAGGGTCTAATGACCAATCCAATTTGTAGTCCCAAGTACTGGAAACCTTCTACCTTTGGTGGGGGAGGTTGGGTTCAACATAATAAAAACTGCTTCTCTTGAAAACTTAATCTGTAATAATATCAAAGGAGAAATGTCCCGCAGTATCATTTAAAGTCCCAGACTATGTTGAGGGAGATGTAACAGAATTCGTCAACCAAAAACTAGAATTATAA

Blast 454

gnl|BL_ORD_ID|328351  FU6OSJA02FNBOV                                766    0E00

gnl|BL_ORD_ID|519424  FV2TRRU02GA34K                                748    0E00

gnl|BL_ORD_ID|568414  FV2TRRU02INIR2                                678    0E00

gnl|BL_ORD_ID|62667  FU6OSJA01EM4F3                                 565    8E-160

gnl|BL_ORD_ID|265519  FU6OSJA02IM7N8                                548    2E-154

gnl|BL_ORD_ID|425039  FU6OSJA02HWRB7                                522    1E-146

gnl|BL_ORD_ID|213616  FU6OSJA02IQQ8B                                359    9E-98

gnl|BL_ORD_ID|456560  FV2TRRU02HDWFY                                357    4E-97

gnl|BL_ORD_ID|441230  FU6OSJA02H48L7                                274    4E-72

Nothing new on 5' of second isoform