Transmembrane Protein 222 (TMEM222)

Transmembrane protein 222 is a protein encoded by the TMEM222 gene. Chromosome 1 is the designation for the largest human chromosome. Humans have two copies of chromosome 1, as they do with all of the autosomes, which are the non-sex chromosomes. Chromosome 1 spans about 247 million nucleotide base pairs, which are the basic units of information for DNA. It represents about 8% of the total DNA in human cells. Identifying genes on each chromosome is an active area of genetic research. Chromosome 1 is currently believed to have 4,220 genes, exceeding previous predictions based on its size. It was the last completed chromosome, sequenced two decades after the beginning of the Human Genome Project.The number of single nucleotide polymorphisms (SNPs) is about 740,000.