The OPA1 gene provides instructions for making a protein that is found in cells and tissues throughout the body. The OPA1 protein is active in the inner membrane of cell structures called mitochondria, which are the energy-producing centers in cells. READ MORE

The OPA3 gene provides instructions for making a protein whose exact function is unknown. The OPA3 protein is found in structures called mitochondria, which are the energy-producing centers of cells. The OPA3 protein is thought to play a role in the READ MORE

The OPN1LW gene provides instructions for making a protein that is essential for normal color vision. This protein is found in the retina, which is the light-sensitive tissue at the back of the eye. The retina contains two types of light receptor cel READ MORE

The OPN1MW gene provides instructions for making a protein that is essential for normal color vision. This protein is found in the retina, which is the light-sensitive tissue at the back of the eye. The retina contains two types of light receptor cel READ MORE

The OPN1SW gene provides instructions for making a protein that is essential for normal color vision. This protein is found in the retina, which is the light-sensitive tissue at the back of the eye. The retina contains two types of light receptor cel READ MORE

The OPRM1 gene provides instructions for making a protein called the mu (μ) opioid receptor. Opioid receptors are part of the endogenous opioid system, which is the body's internal system for regulating pain, reward, and addictive behaviors. It consi READ MORE

The ORC1 gene provides instructions for making a protein that is important in the copying of a cell's DNA before the cell divides (a process known as DNA replication). The protein produced from this gene is one of a group of proteins known as the ori READ MORE

The ORC4 gene provides instructions for making a protein that is important in the copying of a cell's DNA before the cell divides (a process known as DNA replication). The protein produced from this gene, ORC4, is one of a group of proteins known as READ MORE

The ORC6 gene provides instructions for making a protein that is important in the copying of a cell's DNA before the cell divides (a process known as DNA replication). The protein produced from this gene is one of a group of proteins known as the ori READ MORE

The OSMR gene provides instructions for making a protein called oncostatin M receptor beta subunit (OSMRβ). This protein is one piece (subunit) of both the oncostatin M (OSM) receptor type II and the interleukin-31 (IL-31) receptor. These receptors a READ MORE

The OTULIN gene provides instructions for making a protein that helps regulate inflammation, which is part of the body's early immune response to foreign invaders. Inflammation occurs when the immune system sends signaling molecules and white blood c READ MORE

The OTX2 gene provides instructions for making a type of protein called a transcription factor. Transcription factors attach (bind) to specific regions of DNA and help regulate the activity of other genes. The OTX2 gene is part of a family of homeobo READ MORE