There are a number of ELISA Kits available for the measurement of D16Ertd472e, another term for the human protein, chromosome 21 open reading frame 91. Other synonyms may include: protein EURL homolog, cold sore susceptibility gene 1, early undifferentiated retina and lens, C21orf14, CSSG1, EURL, and YG81. It is encoded by the C21orf91 gene to yield a protein 297 amino acids in length and 33.9 kDa in size. However, there are up to 3 reported isoforms. The protein is categorized into the EURL family. Versions of D16Ertd472e are present in other organisms, including: Mouse, Rat, Frog.