def read_msa(path):
    """ read original msa 
    
    Parameter
    =========
    path : string
        path to the MSA file
    
    Return
    ======
    result : dict
        the dictionary containing the protein sequence without characters linked
        to MSA
    """
    result = {}
    with open(path) as inf:
        for line in inf:
            if line[0] == '\n':
                continue
            if line[0] == '>':
                tmp = line[1:-1].split()
                name = tmp[0]
                result[name] = ''
            else:
                result[name] += line.rstrip().replace('-', '')
    return result
