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Domain

The RCC1 repeat region mediates interactions with RPGRIP1.

Function

Could be a guanine-nucleotide releasing factor. Plays a role in ciliogenesis. Probably regulates cilia formation by regulating actin stress filaments and cell contractility. Plays an important role in photoreceptor integrity. May play a critical role in spermatogenesis and in intraflagellar transport processes (By similarity). May be involved in microtubule organization and regulation of transport in primary cilia.

Involvement in disease

Retinitis pigmentosa 3

RP3

An X-linked retinal dystrophy belonging to the group of pigmentary retinopathies. Retinitis pigmentosa is characterized by retinal pigment deposits visible on fundus examination and primary loss of rod photoreceptor cells followed by secondary loss of cone photoreceptors. Patients typically have night vision blindness and loss of midperipheral visual field. As their condition progresses, they lose their far peripheral visual field and eventually central vision as well. In RP3, affected males have a severe phenotype, and carrier females show a wide spectrum of clinical features ranging from completely asymptomatic to severe retinitis pigmentosa. Heterozygous women can manifest a form of choroidoretinal degeneration which is distinguished from other types by the absence of visual defects in the presence of a brilliant, scintillating, golden-hued, patchy appearance most striking around the macula, called a tapetal-like retinal reflex.

None

The disease is caused by variants affecting the gene represented in this entry.

Retinitis pigmentosa, X-linked, and sinorespiratory infections with or without deafness

RPSRDF

A disease characterized by the association of retinitis pigmentosa with recurrent upper and lower airway infections. Some patients also develop progressive hearing loss.

None

The disease is caused by variants affecting the gene represented in this entry.

Cone-rod dystrophy, X-linked 1

CORDX1

An inherited retinal dystrophy characterized by retinal pigment deposits visible on fundus examination, predominantly in the macular region, and initial loss of cone photoreceptors followed by rod degeneration. This leads to decreased visual acuity and sensitivity in the central visual field, followed by loss of peripheral vision. Severe loss of vision occurs earlier than in retinitis pigmentosa. In cone-rod dystrophy X-linked type 1 the degree of rod-photoreceptor involvement can be variable, with degeneration increasing as the disease progresses. Affected individuals (essentially all of whom are males) present with decreased visual acuity, myopia, photophobia, abnormal color vision, full peripheral visual fields, decreased photopic electroretinographic responses, and granularity of the macular retinal pigment epithelium. Although penetrance appears to be nearly 100%, there is variable expressivity with respect to age at onset and severity of symptoms.

None

The disease is caused by variants affecting the gene represented in this entry.

Macular degeneration, atrophic, X-linked

MDXLA

An ocular disorder characterized by macular atrophy causing progressive loss of visual acuity with minimal peripheral visual impairment. Some patients manifest extensive macular degeneration plus peripheral loss of retinal pigment epithelium and choriocapillaries. Full-field electroretinograms (ERGs) show normal cone and rod responses in some affected males despite advanced macular degeneration.

None

The disease is caused by variants affecting the gene represented in this entry.

Post-translational modifications

Prenylated.

Tissue specificity

Heart, brain, placenta, lung, liver, muscle, kidney, retina, pancreas and fetal retinal pigment epithelium. Isoform 3 is found only in the retina. Colocalizes with RPGRIP1 in the outer segment of rod photoreceptors and cone outer segments.

Cellular localization

  • Cytoplasm
  • Cytoskeleton
  • Flagellum axoneme
  • Golgi apparatus
  • Cell projection
  • Cilium
  • In the retinal photoreceptor cell layer, localizes at the connecting cilium (By similarity). Colocalizes with WHRN in the photoreceptor connecting cilium (By similarity). Colocalizes with CEP290 in the photoreceptor connecting cilium (By similarity). Colocalizes with RPGRIP1 in the photoreceptor connecting cilium (By similarity).
  • Isoform 6
  • Cytoplasm
  • Cytoskeleton
  • Microtubule organizing center
  • Centrosome
  • Cytoplasm
  • Cytoskeleton
  • Cilium basal body
  • Cytoplasm
  • Cytoskeleton
  • Cilium axoneme

Alternative names

RP3, XLRP3, RPGR, X-linked retinitis pigmentosa GTPase regulator

Target type

Proteins

Molecular weight

113387Da

We found 2 products in 1 category

Primary Antibodies

Target

Application

Reactive species

Search our catalogue for 'RPGR' (2)

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