Name

MCDR3 Gene

macular dystrophy, retinal 3

MCDR1 Gene

macular dystrophy, retinal, 1 (North Carolina type)

MCDR4 Gene

macular dystrophy, retinal, 4 (North Carolina type with progressive sensorineural hearing loss)

CYMD Gene

cystoid macular dystrophy

VMD1 Gene

vitelliform macular dystrophy, atypical

MDBS2 Gene

butterfly-shaped pigmentary macular dystrophy 2

CACD Gene

central areolar choroidal dystrophy

CACD3 Gene

Choroidal dystrophy, central areolar 3

COD2 Gene

cone dystrophy 2 (X-linked)

CORD8 Gene

cone rod dystrophy 8

CORD1 Gene

cone rod dystrophy 1 (autosomal dominant)

CORD4 Gene

cone rod dystrophy 4

RCD1 Gene

retinal cone dystrophy 1

CORD17 Gene

cone rod dystrophy 17 (autosomal dominant)

EBM Gene

epidermolysis bullosa, macular type

SYCE1 Gene

synaptonemal complex central element protein 1

This gene encodes a member of the synaptonemal complex, which links homologous chromosomes during prophase I of meiosis. The tripartite structure of the complex is highly conserved amongst metazoans. It consists of two lateral elements and a central region formed by transverse elements and a central element. The protein encoded by this gene localizes to the central element and is required for initiation and elongation of the synapsis. Allelic variants of this gene have been associated with premature ovarian failure and spermatogenic failure. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2016]

TCEANC2 Gene

transcription elongation factor A (SII) N-terminal and central domain containing 2

Predicted to be involved in regulation of transcription by RNA polymerase II. Predicted to be active in nucleus. [provided by Alliance of Genome Resources, Mar 2025]

TCEANC Gene

transcription elongation factor A (SII) N-terminal and central domain containing

Predicted to be involved in regulation of transcription by RNA polymerase II. Predicted to be active in nucleus. [provided by Alliance of Genome Resources, Mar 2025]

HYDIN Gene

HYDIN, axonemal central pair apparatus protein

This gene encodes a protein that may be involved in cilia motility. Mutations in this gene cause of autosomal recessive primary ciliary dyskinesia-5, a disorder characterized by the accumulation of cerebrospinal fluid within the ventricles of the brain. A duplicate copy of this gene has been found in humans on chromosome 1. [provided by RefSeq, Jan 2013]

SYCE3 Gene

synaptonemal complex central element protein 3

Predicted to be involved in reciprocal meiotic recombination; spermatogenesis; and synaptonemal complex assembly. Predicted to act upstream of or within positive regulation of apoptotic process; positive regulation of developmental process; and positive regulation of reproductive process. Predicted to be located in chromosome and nucleus. Predicted to be active in central element. [provided by Alliance of Genome Resources, Mar 2025]

CTRCT25 Gene

Cataract, central pouch-like, with sutural opacities

SYCE2 Gene

synaptonemal complex central element protein 2

The protein encoded by this gene is part of the synaptonemal complex formed between homologous chromosomes during meiotic prophase. The encoded protein associates with SYCP1 and SYCE1 and is found only where chromosome cores are synapsed. [provided by RefSeq, Dec 2012]

HYDIN2 Gene

HYDIN2, axonemal central pair apparatus protein (pseudogene)

SYCE1L Gene

synaptonemal complex central element protein 1-like

Predicted to be involved in synaptonemal complex assembly. Located in intermediate filament cytoskeleton. [provided by Alliance of Genome Resources, Mar 2025]

HPVC1 Gene

human papillomavirus (type 18) E5 central sequence-like 1

OPN1MW Gene

opsin 1 (cone pigments), medium-wave-sensitive

This gene encodes for a light absorbing visual pigment of the opsin gene family. The encoded protein is called green cone photopigment or medium-wavelength sensitive opsin. Opsins are G-protein coupled receptors with seven transmembrane domains, an N-terminal extracellular domain, and a C-terminal cytoplasmic domain. The long-wavelength opsin gene and multiple copies of the medium-wavelength opsin gene are tandemly arrayed on the X chromosome and frequent unequal recombination and gene conversion may occur between these sequences. X chromosomes may have fusions of the medium- and long-wavelength opsin genes or may have more than one copy of these genes. Defects in this gene are the cause of deutanopic colorblindness. [provided by RefSeq, Mar 2009]

OPN1SW Gene

opsin 1 (cone pigments), short-wave-sensitive

This gene belongs to the G-protein coupled receptor 1 family, opsin subfamily. It encodes the blue cone pigment gene which is one of three types of cone photoreceptors responsible for normal color vision. Defects in this gene are the cause of tritan color blindness (tritanopia). Affected individuals lack blue and yellow sensory mechanisms while retaining those for red and green. Defective blue vision is characteristic. [provided by RefSeq, Jul 2008]

OPN1LW Gene

opsin 1 (cone pigments), long-wave-sensitive

This gene encodes for a light absorbing visual pigment of the opsin gene family. The encoded protein is called red cone photopigment or long-wavelength sensitive opsin. Opsins are G-protein coupled receptors with seven transmembrane domains, an N-terminal extracellular domain, and a C-terminal cytoplasmic domain. This gene and the medium-wavelength opsin gene are tandemly arrayed on the X chromosome and frequent unequal recombination and gene conversion may occur between these sequences. X chromosomes may have fusions of the medium- and long-wavelength opsin genes or may have more than one copy of these genes. Defects in this gene are the cause of partial, protanopic colorblindness. [provided by RefSeq, Jul 2008]

PRCD Gene

progressive rod-cone degeneration

This gene is predominantly expressed in the retina, and mutations in this gene are the cause of autosomal recessive retinal degeneration in both humans and dogs. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Mar 2010]

CRX Gene

cone-rod homeobox

The protein encoded by this gene is a photoreceptor-specific transcription factor which plays a role in the differentiation of photoreceptor cells. This homeodomain protein is necessary for the maintenance of normal cone and rod function. Mutations in this gene are associated with photoreceptor degeneration, Leber congenital amaurosis type III and the autosomal dominant cone-rod dystrophy 2. Several alternatively spliced transcript variants of this gene have been described, but the full-length nature of some variants has not been determined. [provided by RefSeq, Jul 2008]

OPN1MW2 Gene

opsin 1 (cone pigments), medium-wave-sensitive 2

This gene encodes for a light absorbing visual pigment of the opsin gene family. The encoded protein is called green cone photopigment or medium-wavelength sensitive opsin. Opsins are G-protein coupled receptors with seven transmembrane domains, an N-terminal extracellular domain, and a C-terminal cytoplasmic domain. The long-wavelength opsin gene and multiple copies of the medium-wavelength opsin gene are tandemly arrayed on the X chromosome and frequent unequal recombination and gene conversion may occur between these sequences. X chromosomes may have fusions of the medium- and long-wavelength opsin genes or may have more than one copy of these genes. Defects in this gene are the cause of deutanopic colorblindness. [provided by RefSeq, Mar 2009]

PDE6C Gene

phosphodiesterase 6C, cGMP-specific, cone, alpha prime

This gene encodes the alpha-prime subunit of cone phosphodiesterase, which is composed of a homodimer of two alpha-prime subunits and 3 smaller proteins of 11, 13, and 15 kDa. Mutations in this gene are associated with cone dystrophy type 4 (COD4). [provided by RefSeq, Mar 2010]

PDE6H Gene

phosphodiesterase 6H, cGMP-specific, cone, gamma

This gene encodes the inhibitory (or gamma) subunit of the cone-specific cGMP phosphodiesterase, which is a tetramer composed of two catalytic chains (alpha and beta), and two inhibitory chains (gamma). It is specifically expressed in the retina, and is involved in the transmission and amplification of the visual signal. Mutations in this gene are associated with retinal cone dystrophy type 3A (RCD3A). [provided by RefSeq, Mar 2010]

MDRV Gene

muscular dystrophy, with rimmed vacuoles

LGMD1H Gene

limb girdle muscular dystrophy 1H (autosomal dominant)

LGMD1G Gene

limb girdle muscular dystrophy 1G (autosomal dominant)

FECD7 Gene

Corneal dystrophy, Fuchs endothelial, 7

FECD5 Gene

Corneal dystrophy, Fuchs endothelial, 5

FECD3 Gene

Corneal dystrophy, Fuchs endothelial, 3

FECD2 Gene

corneal dystrophy, Fuchs endothelial 2

MDC1B Gene

Muscular dystrophy, congenital, 1B

CDB2 Gene

corneal dystrophy of Bowman layer type II (Thiel-Behnke)

FSHMD1A Gene

facioscapulohumeral muscular dystrophy 1A

Facioscapulohumeral muscular dystrophy (FSHD) is a common hereditary disease of muscle. Patients with FSHD have a chromosomal rearrangement within the subtelomeric region of chromosome 4 (4q35). This region is composed mainly of a polymorphic repeat structure consisting of 3.3 kb repeat units, designated D4Z4. The number of repeat units varies from 10 to more than 100 in the population, however, in FSHD patients only 1-10 repeat units is observed because of a deletion of an integral number of these units. FSHD is caused by an epigenetic mechanism involving the contraction of a subtelomeric macrosatellite repeat, which results in marked hypomethylation of the contracted D4Z4 allele. It is likely not the structure, but the deregulation of transcription of one or more genes as a result of repeat-contraction-mediated chromatin alterations, that causes FSHD. [provided by RefSeq, Sep 2011]

FSHMD1B Gene

facioscapulohumeral muscular dystrophy 1B

LECD Gene

Corneal dystrophy, Lisch epithelial

ATD Gene

asphixiating thoracic dystrophy (chondroectodermal dysplasia-like syndrome)

MDCMP Gene

muscular dystrophy, congenital, merosin-positive

XECD Gene

Corneal dystrophy, endothelial, X-linked

CHED1 Gene

corneal endothelial dystrophy 1 (autosomal dominant)