>tr|A0A6P5P923|A0A6P5P923_MUSCR GTP cyclohydrolase 1 feedback regulatory protein OS=Mus caroli GN=Gchfr MPYLLISTQIRMEVGPTMVGDEHSDPELMQHLGASKRSVLGNNFYEYYVNDPPRIVLDKL ECKGFRVLSMTGVGQTLVWCLHKE