Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_27 (human_gene__protein_ VARCHAR, mouse_ortholog VARCHAR)
### Question:
What is the human gene that has a mouse ortholog of LIG1?
### Answer:
SELECT human_gene__protein_ FROM table_name_27 WHERE mouse_ortholog = "lig1"