Abstract: To provide a rubber composition having excellent durability against external environment, and a vulcanization rubber product and a hose using the same. The rubber composition of the present technology is a rubber composition comprising: a rubber component (A), a water repellent (B), and hydrotalcite (C). In the rubber composition, the rubber component (A) comprises CR, SBR, or both CR and SBR; and the water repellent (B) comprises one or more types of ultra high molecular weight polyethylene powders or fatty acid amide compounds. The total content of the components of the water repellent (B) is from 2 parts by mass to 30 parts by mass per 100 parts by mass of the rubber component (A); and the content of the hydrotalcite (C) is from 2 parts by mass to 20 parts by mass per 100 parts by mass of the rubber component (A).

Abstract: An antibody against mutant ?-actinin-4 having an amino acid sequence with at least one amino acid residue substitution in the region between position 245 and 263 in the amino acid sequence of ?-actinin-4, wherein the antibody recognizes all or a part of the substituted amino acid residue(s) in the region.