>4xef_D mol:protein length:139 Protein-tyrosine kinase 2-beta GSHMANLDRTDDLVYLNVMELVRAVLELKNELSQLPPEGYVVVVKNVGLTLRKLIGSVD DLLPSLPSSSRTEIEGTQKLLNKDLAELINKMRLAQQNAVTSLSEEAKRQMLTASHTLA VDAKNLLDAVDQAKVLANLAH