Oxygen-regulated protein 1 also known as retinitis pigmentosa 1 protein (RP1) is a protein that in humans is encoded by the RP1 gene. [5] [6]
Oxygen-regulated protein 1 also known as retinitis pigmentosa 1 protein (RP1) is a protein that in humans is encoded by the RP1 gene. [5] [6]
This gene encodes a member of the doublecortin family. The protein encoded by this gene contains two doublecortin domains that bind to microtubules and regulate microtubule polymerization. The encoded protein is a protein associated with the photoreceptor cell microtubules in the retina and is necessary for the correct stacking of outer segment disc. This protein and another retinal-specific protein, RP1L1, play essential and synergistic roles in affecting photosensitivity and outer segment morphogenesis of rod photoreceptor cells. [6]
Initially named "ORP1" for its response to in vivo retinal oxygen levels (designated ORP1 for 'oxygen-regulated protein-1'), this gene was subsequently linked to autosomal dominant retinitis pigmentosa and was renamed RP1 for 'retinitis pigmentosa 1'.
Mutations in this gene cause autosomal dominant or autosomal recessive retinitis pigmentosa. [7] [8] [9] [10] [11] Transcript variants produced by alternative promoters and alternative splicing have been discovered that overlap with the current reference sequence and have multiple exons upstream and downstream of the current reference sequence. However, as of 2010, it is currently impossible to determine the biological effectiveness and full-length nature of certain variants. [6]
Retinitis pigmentosa (RP) is a genetic disorder of the eyes that causes loss of vision. Symptoms include trouble seeing at night and decreasing peripheral vision. As peripheral vision worsens, people may experience "tunnel vision". Complete blindness is uncommon. Onset of symptoms is generally gradual and often begins in childhood.
X-linked retinitis pigmentosa GTPase regulator is a GTPase-binding protein that in humans is encoded by the RPGR gene. The gene is located on the X-chromosome and is commonly associated with X-linked retinitis pigmentosa (XLRP). In photoreceptor cells, RPGR is localized in the connecting cilium which connects the protein-synthesizing inner segment to the photosensitive outer segment and is involved in the modulation of cargo trafficked between the two segments.
Peripherin-2 is a protein, that in humans is encoded by the PRPH2 gene. Peripherin-2 is found in the rod and cone cells of the retina of the eye. Defects in this protein result in one form of retinitis pigmentosa, an incurable blindness.
PRP31 pre-mRNA processing factor 31 homolog , also known as PRPF31, is a protein which in humans is encoded by the PRPF31 gene.
Cone-rod homeobox protein is a protein that in humans is encoded by the CRX gene.
Protein XRP2 is a protein that in humans is encoded by the RP2 gene.
Rod cGMP-specific 3',5'-cyclic phosphodiesterase subunit beta is the beta subunit of the protein complex PDE6 that is encoded by the PDE6B gene. PDE6 is crucial in transmission and amplification of visual signal. The existence of this beta subunit is essential for normal PDE6 functioning. Mutations in this subunit are responsible for retinal degeneration such as retinitis pigmentosa or congenital stationary night blindness.
Crumbs homolog 1 is a protein that in humans is encoded by the CRB1 gene.
Aryl-hydrocarbon-interacting protein-like 1 is a protein that in humans is encoded by the AIPL1 gene.
Tubby-related protein 1 is a protein that in humans is encoded by the TULP1 gene.
Rod outer segment membrane protein 1 is a protein that in humans is encoded by the ROM1 gene.
Cyclic nucleotide gated channel beta 1, also known as CNGB1, is a human gene encoding an ion channel protein.
Rod cGMP-specific 3',5'-cyclic phosphodiesterase subunit alpha is an enzyme that in humans is encoded by the PDE6A gene.
Fascin-2 is a protein that in humans is encoded by the FSCN2 gene.
Cytochrome P450 4V2 is a protein that in humans is encoded by the CYP4V2 gene.
Retinitis pigmentosa 9 (autosomal dominant), also known as RP9 or PAP-1, is a protein which in humans is encoded by the RP9 gene.
Membrane frizzled-related protein is a protein that in humans is encoded by the MFRP gene.
Inosine-5'-monophosphate dehydrogenase 1, also known as IMP dehydrogenase 1, is an enzyme that in humans is encoded by the IMPDH1 gene.
Retinal degeneration is a retinopathy which consists in the deterioration of the retina caused by the progressive death of its cells. There are several reasons for retinal degeneration, including artery or vein occlusion, diabetic retinopathy, R.L.F./R.O.P., or disease. These may present in many different ways such as impaired vision, night blindness, retinal detachment, light sensitivity, tunnel vision, and loss of peripheral vision to total loss of vision. Of the retinal degenerative diseases retinitis pigmentosa (RP) is a very important example.
Occult macular dystrophy (OMD) is a rare inherited degradation of the retina, characterized by progressive loss of function in the most sensitive part of the central retina (macula), the location of the highest concentration of light-sensitive cells (photoreceptors) but presenting no visible abnormality. "Occult" refers to the degradation in the fundus being difficult to discern. The disorder is called "dystrophy" instead of "degradation" to distinguish its genetic origin from other causes, such as age. OMD was first reported by Y. Miyake et al. in 1989.
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