There are a number of ELISA Kits available for the measurement of NEM/1CHD4, another term for the human protein, ribosomal protein SA. Other synonyms may include: 40S ribosomal protein SA, 37 kDa laminin receptor, 37/67 kDa laminin receptor, 67 kDa laminin receptor, laminin receptor 1 (67kD ribosomal protein SA), laminin-binding protein precursor p40, and multidrug resistance-associated protein MGr1-Ag. It is encoded by the RPSA gene to yield a protein 295 amino acids in length and 32.9 kDa in size. The protein is categorized into the Universal ribosomal protein uS2 family. Versions of NEM/1CHD4 are present in other organisms, including: Mouse, Rat, Fly, E. coli, Zebrafish, Frog, Chicken.