Name

ECM2 Gene

extracellular matrix protein 2, female organ and adipocyte specific

ECM2 encodes extracellular matrix protein 2, so named because it shares extensive similarity with known extracelluar matrix proteins. Three transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2010]

CLN8 Gene

ceroid-lipofuscinosis, neuronal 8 (epilepsy, progressive with mental retardation)

This gene encodes a transmembrane protein belonging to a family of proteins containing TLC domains, which are postulated to function in lipid synthesis, transport, or sensing. The protein localizes to the endoplasmic reticulum (ER), and may recycle between the ER and ER-Golgi intermediate compartment. Mutations in this gene are associated with a disorder characterized by progressive epilepsy with cognitive disabilities (EPMR), which is a subtype of neuronal ceroid lipofuscinoses (NCL). Patients with mutations in this gene have altered levels of sphingolipid and phospholipids in the brain. [provided by RefSeq, Jul 2017]

EIG4 Gene

Epilepsy, idiopathic generalized, susceptibility to 4

ETL6 Gene

Epilepsy, familial temporal lobe, 6

FAME4 Gene

Epilepsy, familial adult myoclonic, 4

FAME3 Gene

Epilepsy, familial adult myoclonic, 3

EIG3 Gene

Epilepsy, idiopathic generalized, susceptibility to 3

EIG2 Gene

Epilepsy, idiopathic generalized, susceptibility to 2

ECT Gene

centralopathic epilepsy

EIG5 Gene

Epilepsy, idiopathic generalized, susceptibility to, 5

ETL2 Gene

epilepsy, familial temporal lobe

ETL4 Gene

epilepsy, occipitotemporal lobe, and migraine with aura

FCMTE2 Gene

familial cortical myoclonic tremor with epilepsy 2

FCMTE1 Gene

familial cortical myoclonic tremor with epilepsy 1

EJM3 Gene

Epilepsy, juvenile myoclonic 3

EJM2 Gene

epilepsy, juvenile myoclonic 2

EJM4 Gene

Myoclonic epilepsy, juvenile, 4

EJM9 Gene

Epilepsy, juvenile myoclonic, susceptiblity to, 9

EPRPDC Gene

Epilepsy, rolandic, with paroxysmal exercise-induced dystonia and writer's cramp

GEFSP8 Gene

Generalized epilepsy with febrile seizures plus, type 8

GEFSP6 Gene

Generalized epilepsy with febrile seizures plus, type 6

GEFSP4 Gene

Epilepsy, generalized, with febrile seizures plus, type 4

EPM2A Gene

epilepsy, progressive myoclonus type 2A, Lafora disease (laforin)

This gene encodes a dual-specificity phosphatase and may be involved in the regulation of glycogen metabolism. The protein acts on complex carbohydrates to prevent glycogen hyperphosphorylation, thus avoiding the formation of insoluble aggregates. Loss-of-function mutations in this gene have been associated with Lafora disease, a rare, adult-onset recessive neurodegenerative disease, which results in myoclonus epilepsy and usually results in death several years after the onset of symptoms. The disease is characterized by the accumulation of insoluble particles called Lafora bodies, which are derived from glycogen. [provided by RefSeq, Jan 2018]

HWE1 Gene

Epilepsy, hot water, 1

HWE2 Gene

Epilepsy, hot water, 2

EIM Gene

Infantile myoclonic epilepsy

FMTLE Gene

Epilepsy, familial mesial temporal lobe

FPEVF Gene

Epilepsy, partial, with variable foci

ECA1 Gene

epilepsy, childhood absence 1

EGI Gene

epilepsy, generalized, idiopathic

EPPS Gene

Epilepsy, partial, with pericentral spikes

ENFL2 Gene

Epilepsy, nocturnal frontal lobe, type 2

MRT28 Gene

mental retardation, non-syndromic, autosomal recessive, 28

MRT29 Gene

Mental retardation, autosomal recessive 29

MRT24 Gene

mental retardation, non-syndromic, autosomal recessive, 24

MRT23 Gene

mental retardation, non-syndromic, autosomal recessive, 23

MRT10 Gene

mental retardation, non-syndromic, autosomal recessive, 10

MRXSAB Gene

Abidi X-linked mental retardation syndrome

MRX18 Gene

mental retardation, X-linked 18

MRX11 Gene

mental retardation, X-linked 11

MRX12 Gene

mental retardation, X-linked 12

MRX15 Gene

mental retardation, X-linked 15

MRX14 Gene

mental retardation, X-linked 14

MRX17 Gene

mental retardation, X-linked 17

FMR1 Gene

fragile X mental retardation 1

The protein encoded by this gene binds RNA and is associated with polysomes. The encoded protein may be involved in mRNA trafficking from the nucleus to the cytoplasm. A trinucleotide repeat (CGG) in the 5' UTR is normally found at 6-53 copies, but an expansion to 55-230 repeats is the cause of fragile X syndrome. Expansion of the trinucleotide repeat may also cause one form of premature ovarian failure (POF1). Multiple alternatively spliced transcript variants that encode different protein isoforms and which are located in different cellular locations have been described for this gene. [provided by RefSeq, May 2010]

FMR3 Gene

fragile X mental retardation associated 3

AMMECR1 Gene

Alport syndrome, mental retardation, midface hypoplasia and elliptocytosis chromosomal region gene 1

The exact function of this gene is not known, however, submicroscopic deletion of the X chromosome including this gene, COL4A5, and FACL4 genes, result in a contiguous gene deletion syndrome, the AMME complex (Alport syndrome, mental retardation, midface hypoplasia, and elliptocytosis). Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2010]

FXR1 Gene

fragile X mental retardation, autosomal homolog 1

The protein encoded by this gene is an RNA binding protein that interacts with the functionally-similar proteins FMR1 and FXR2. These proteins shuttle between the nucleus and cytoplasm and associate with polyribosomes, predominantly with the 60S ribosomal subunit. Three transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

FXR2 Gene

fragile X mental retardation, autosomal homolog 2

The protein encoded by this gene is a RNA binding protein containing two KH domains and one RCG box, which is similar to FMRP and FXR1. It associates with polyribosomes, predominantly with 60S large ribosomal subunits. This encoded protein may self-associate or interact with FMRP and FXR1. It may have a role in the development of fragile X cognitive disability syndrome. [provided by RefSeq, Jul 2008]

MRX92 Gene

Mental retardation, X-linked 92

MRX95 Gene

Mental retardation, X-linked 95

HBHR Gene

alpha-thalassemia/mental retardation syndrome, type 1

MHW2 Gene

Mental health wellness 2

MHW1 Gene

Mental health wellness 1

MRT17 Gene

mental retardation, non-syndromic, autosomal recessive, 17

MRT16 Gene

Mental retardation, autosomal recessive 16

MRT11 Gene

mental retardation, non-syndromic, autosomal recessive, 11

MRT19 Gene

mental retardation, non-syndromic, autosomal recessive, 19

ATRX Gene

alpha thalassemia/mental retardation syndrome X-linked

The protein encoded by this gene contains an ATPase/helicase domain, and thus it belongs to the SWI/SNF family of chromatin remodeling proteins. This protein is found to undergo cell cycle-dependent phosphorylation, which regulates its nuclear matrix and chromatin association, and suggests its involvement in the gene regulation at interphase and chromosomal segregation in mitosis. Mutations in this gene are associated with X-linked syndromes exhibiting cognitive disabilities as well as alpha-thalassemia (ATRX) syndrome. These mutations have been shown to cause diverse changes in the pattern of DNA methylation, which may provide a link between chromatin remodeling, DNA methylation, and gene expression in developmental processes. Multiple alternatively spliced transcript variants encoding distinct isoforms have been reported. [provided by RefSeq, Jul 2017]

CVMRF Gene

cubitus valgus with mental retardation and unusual facies

MRX42 Gene

mental retardation, X-linked 42

MRX40 Gene

mental retardation, X-linked 40

MRX49 Gene

mental retardation, X-linked 49

MRT8 Gene

mental retardation, non-syndromic, autosomal recessive, 8

AMMEC Gene

Alport syndrome, mental retardation, midface hypoplasia, and elliptocytosis

MRT9 Gene

mental retardation, non-syndromic, autosomal recessive, 9

LOC100132797 Gene

fragile X mental retardation, autosomal homolog 1 pseudogene

DEL11P13 Gene

Wilms tumor, aniridia, genitourinary anomalies and mental retardation syndrome

NUFIP2 Gene

nuclear fragile X mental retardation protein interacting protein 2

Enables RNA binding activity. Located in several cellular components, including cytoplasmic stress granule; nuclear body; and ribosome. [provided by Alliance of Genome Resources, Mar 2025]

NUFIP1 Gene

nuclear fragile X mental retardation protein interacting protein 1

This gene encodes a nuclear RNA binding protein that contains a C2H2 zinc finger motif and a nuclear localization signal. This protein is associated with the nuclear matrix in perichromatin fibrils and, in neurons, localizes to the cytoplasm in association with endoplasmic reticulum ribosomes. This protein interacts with the fragile X mental retardation protein (FMRP), the tumor suppressor protein BRCA1, upregulates RNA polymerase II transcription, and is involved in box C/D snoRNP biogenesis. A pseudogene of this gene resides on chromosome 6q12. [provided by RefSeq, Feb 2012]

MRT25 Gene

mental retardation, non-syndromic, autosomal recessive, 25

MRT4 Gene

mental retardation, non-syndromic, autosomal recessive, 4

MRX37 Gene

mental retardation, X-linked 37

MRX35 Gene

mental retardation, X-linked 35

MRX31 Gene

mental retardation, X-linked 31

MRX39 Gene

mental retardation, X-linked 39

APMR3 Gene

Alopecia-mental retardation syndrome 3

APMR2 Gene

Alopecia with mental retardation syndrome 2

APMR1 Gene

Alopecia-mental retardation syndrome

DELXQ21 Gene

Choroideremia, deafness, and mental retardation

MRXS17 Gene

Mental retardation, X-linked, syndromic 17

MRXS12 Gene

Mental retardation, X-linked, syndromic 12

MRXS11 Gene

mental retardation, X-linked, syndromic 11

MRT33 Gene

Mental retardation, autosomal recessive 33

MRT32 Gene

Mental retardation, autosomal recessive 32

MRT31 Gene

Mental retardation, autosomal recessive 31

MRT30 Gene

Mental retardation, autosomal recessive 30

MRT35 Gene

Mental retardation, autosomal recessive 35

MRT27 Gene

mental retardation, non-syndromic, autosomal recessive, 27

NUFIP1P Gene

nuclear fragile X mental retardation protein interacting protein 1 pseudogene

MRX69 Gene

mental retardation, X-linked 69

MRX64 Gene

mental retardation, X-linked 64

MRX65 Gene

mental retardation, X-linked 65

MRX61 Gene

mental retardation, X-linked 61

MEHMO Gene

mental retardation, epileptic seizures, hypogonadism and -genitalism, microcephaly and obesity syndrome

MRXSA Gene

Armfield X-linked mental retardation syndrome

MRXSL Gene

Lubs X-linked mental retardation syndrome

MMRFCGU Gene

Microcephaly, mental retardation, and distinctive facies, with cardiac and genitourinary malformations

MRX57 Gene

mental retardation, X-linked 57

MRX56 Gene

mental retardation, X-linked 56

MRX51 Gene

mental retardation, X-linked 51

MRX50 Gene

mental retardation, X-linked 50

MRX53 Gene

mental retardation, X-linked 53

MRX52 Gene

mental retardation, X-linked 52

MCS Gene

Miles-Carpenter X-linked mental retardation syndrome

MRXSMP Gene

Martin-Probst deafness-mental retardation syndrome

PRS Gene

Prieto X-linked mental retardation syndrome

MRX66 Gene

mental retardation, X-linked 66

MRX67 Gene

mental retardation, X-linked 67

MRX5 Gene

mental retardation, X-linked 5

MRX4 Gene

mental retardation, X-linked 4

MRX7 Gene

mental retardation, X-linked 7

MRX6 Gene

mental retardation, X-linked 6 (Okinawa type)

FRAXA Gene

fragile site, folic acid type, rare, fra(X)(q27.3) A (macroorchidism, mental retardation)

MRX8 Gene

mental retardation, X-linked 8

MRX82 Gene

mental retardation, X-linked 82

MRX80 Gene

mental retardation, X-linked 80

MRX81 Gene

mental retardation, X-linked 81

MRX86 Gene

mental retardation, X-linked 86

MRX84 Gene

mental retardation, X-linked 84

MRX88 Gene

Mental retardation, X-linked 88

MRX89 Gene

Mental retardation, X-linked 89

CHMRQ Gene

Cerebellar hypoplasia, mental retardation, and quadrupedal locomotion

MRX28 Gene

mental retardation, X-linked 28

MRXSCS Gene

Mental retardation, X-linked, syndromic, Chudley-Schwartz type

GUST Gene

Gustavson mental retardation syndrome (with microcephaly, optic

MRX73 Gene

mental retardation, X-linked 73

MRX71 Gene

mental retardation, X-linked 71

MRX70 Gene

mental retardation, X-linked 70

MRX75 Gene

mental retardation, X-linked 75

MRXS7 Gene

mental retardation, X-linked, syndromic 7

MRSD Gene

mental retardation-skeletal dysplasia

MRSS Gene

Mental retardation, X-linked, with short stature

MRST Gene

Mental retardation, severe, with spasticity and tapetoretinal

MRX77 Gene

mental retardation, X-linked 77

MRX78 Gene

mental retardation, X-linked 78

ANOP1 Gene

anophthalmos 1 (with mental retardation, without limb anomalies or dental or urogenital abnormalities)

FMR1NB Gene

fragile X mental retardation 1 neighbor

Predicted to be located in membrane. [provided by Alliance of Genome Resources, Mar 2025]

MRX20 Gene

mental retardation, X-linked 20

MRX23 Gene

mental retardation, X-linked 23

MRX24 Gene

mental retardation, X-linked 24

MRX25 Gene

mental retardation, X-linked 25

MRX26 Gene

mental retardation, X-linked 26

MRX27 Gene

mental retardation, X-linked 27