from typing import List
import re


def parse_active_site_data_line(line: str) -> List[str]:
    """
    Parse active site data line.

    Args:
        line (str): a line from the active site data file.

    Returns:
        List[str]: a list containing identifiers and the sequence.
    """
    identifiers, sequence = re.split(r",\s+", line.strip(">\n"))
    return identifiers.split() + [sequence]