bioinformatics /genomics
The sequences you have posted seem to be (protein) amino acid sequences. The stop codon are present in DNA sequences and in mRNA sequences.

In DNA, the bases are A, G, C and T; stop codons are TAG, TGA and TAA.
In RNA, the bases are A, G, C and U; stop codons are UAG, UGA and UAA.
In DNA and RNA, other letters are used to specify degeneracy.

What you have here looks like protein sequences. So, there are no stop codons in sequences you have posted.