There have been several candidate markers for cancer; most notably genes coding for elafin, antileukoproteinase 1 (previously called secretory leucocyte proteinase inhibitor, SLPI), WAP four disulphide core domain protein 1 (previously called prostate stromal protein 20 kDa, PS20), and WAP four disulphide core domain protein 2 (previously called major human epididymis-specific protein E4, HE4).
protein | Protein subunit | Protein-protein interaction | Hfq protein | protein domain | Protein-protein_interaction | Protein Data Bank | RNA-binding protein | Promyelocytic leukemia protein | G protein | Wiskott–Aldrich syndrome protein | Protein G | protein dimer | Protein A | C-reactive protein | Bone morphogenetic protein 2 | AMP-activated protein kinase | whey | Transmembrane protein | Tau protein | Sterol regulatory element-binding protein | SR protein | Rab escort protein | Protein structure | protein structure | Protein phosphatase 2 | protein kinase | Protein Information Resource | Protein folding | protein folding |