HCC-4 is expressed in multiple tissue types. RNA from human immune tissues (A) or a multiple tissue dot-blot (B) were probed with a full-length HCC-4 probe. The 500-bp HCC-4 mRNA detected is indicated with an arrow and appropriate size markers are shown. Dot blot legend: A1, left atrium; B1, right atrium; C1, left ventricle; D1, right ventricle; E1, interventricle septum; F1, pericardium; G1, human DNA; H1, plasmid DNA; A2, frontal lobe; B2, temporal lobe; C2, occipital lobe; D2, parietal lobe; E2, thalamus; F2, pons; G2, cerebellum; H2, spinal cord; A3, parotid; B3, esophagus; C3, stomach; D3, small intestine; E3, colon; F3, rectum; G3, liver; H3, gallbladder; A4, throat; B4, bronchial trachea; C4, left lung; D4, right lung; E4, diaphragm; F4, skeletal muscle; G4, tongue; H4, adipose tissue; A5, kidney; B5, bladder; C5, prostate; D5, testis; E5, uterus; F5, breast; G5, ovary; H5, placenta; A6, thyroid; B6, pancreas; C6, adrenal; D6, tonsil; E6, thymus; F6, spleen; G6, lymph node; H6, appendix.