From this scientific work:
"The Mycobacteriophage D29 Gene 65 Encodes an Early-Expressed Protein That Functions as a Structure-Specific Nuclease"
Walker motif A
GXXXXGK(T/S)
G-X-X-G-X-G-K-T/S
each character X in the sequence is a one-letter abbreviation representing a particular amino acid. The motif is distributed among proteins of widely varying function, but is best known for its presence in nucleotide-binding proteins.Walker motif B
Walker motif B is a motif in proteins having the pattern:
(R/K)XXXGXXXL/VhhhhD
R/K-X(7-8)-h(4)-D
R/K-X(7-8)-h(4)-D
where each character in the sequence is a one-letter abbreviation representing a particular amino acid. In that sequence, 'X' represents any of the 20 standard amino acids and 'h' represents any hydrophobic residue. The motif is particularly well conserved among proteins involved in homologous recombination.
By Jalview software(open source) or by ClustalX2(open source)
1) paste the fasta protein sequence
2) give free rein to one's imagination and paste the Walker sequences
This is the example with D29p65 protein:
