Molecular model of albumin complexed with JSM-053 inhibitor. The figure shows the structure of the blood serum protein albumin as a ribbon pattern, showing its secondary and tertiary structure. Albumin protein is capable of binding and transporting different substances such as fatty acids, hormones, and therapeutic agents such as medications. Here, it is bound to inhibitor JMS-053, a protein tyrosine phosphatase (PTP) 4A3 inhibitor, overexpressed in some cancers (molecules shown as spheres with the carbons in yellow).