AFF2 - ALF transcription elongation factor 2 Gene

Also Known as FMR2; MRX2; OX19; FMR2P; FRAXE; XLID109

Species: Homo sapiens

Gene Type: protein coding
Gene ID: 2334

About AFF2

Cytogenetic location: Xq28 Genomic coordinates (GRCh38): X:148,500,617-149,000,663 (from NCBI)

This gene has 7 transcripts (splice variants), 209 orthologues, 3 paralogues and is associated with 3 phenotypes. Biased expression in placenta (RPKM 3.7), bone marrow (RPKM 2.5) and 8 other tissues.

Summary

This gene encodes a putative transcriptional activator that is a member of the AF4\FMR2 gene family. This gene is associated with the folate-sensitive fragile X E locus on chromosome X. A repeat polymorphism in the fragile X E locus results in silencing of this gene causing Fragile X E syndrome. Fragile X E syndrome is a form of nonsyndromic X-linked cognitive disability. In addition, this gene contains 6-25 GCC repeats that are expanded to >200 repeats in the disease state. Alternate splicing results in multiple transcript variants.[provided by RefSeq, Jul 2016]

AFF2 Products (6)

mRNA Protein Name
NM_001169122.2 NP_001162593.1 AF4/FMR2 family member 2 isoform 2
NM_001169123.2 NP_001162594.1 AF4/FMR2 family member 2 isoform 3
NM_001169124.2 NP_001162595.1 AF4/FMR2 family member 2 isoform 4
NM_001169125.2 NP_001162596.1 AF4/FMR2 family member 2 isoform 5
NM_001170628.1 NP_001164099.1 AF4/FMR2 family member 2 isoform 6
NM_002025.4 NP_002016.2 AF4/FMR2 family member 2 isoform 1
Biological Process GO Annotation Evidence References Source
acts upstream of or within nuclear speck organization IMP
IMP: Inferred from mutant phenotype
23562910 GOA
involved in regulation of RNA splicing IMP
IMP: Inferred from mutant phenotype
19136466 GOA
acts upstream of or within regulation of gene expression IMP
IMP: Inferred from mutant phenotype
23562910 GOA
Cellular Component GO Annotation Evidence References Source
located in nuclear speck IDA
IDA: Inferred from direct assay
19136466 GOA
EXP: Inferred from Experiment IDA: Inferred from direct assay IPI: Inferred from physical interaction IMP: Inferred from mutant phenotype IGI: Inferred from genetic interaction IEP: Inferred from expression pattern

AFF2 Protein Structure

AF-4

AF-4: AF-4 proto-oncoprotein (18 - 1309)

  • 0
  • 300
  • 600
  • 900
  • 1200
  • 1311 a.a.
Protein Preferred Names Protein Names

AF4/FMR2 family member 2

  • protein FMR-2

Related Diseases

Diseases Alias
Intellectual Developmental Disorder, X-Linked 109
  • Fraxe Syndrome

  • Fragile Xe Syndrome

  • Mental Retardation, X-Linked, Fraxe Type

  • XLID109

  • Mrx109

  • Mental Retardation, X-Linked, Associated With Fragile Site Fraxe

  • Fraxe Mental Retardation Syndrome

  • X-Linked Intellectual Developmental Disorder 109

  • Fraxe Intellectual Disability

  • Fraxe

  • Mental Retardation, X-Linked 109

  • Fragile Site On Chromosome Xq28

  • Fragile Site, Folic Acid Type

  • X-Linked Intellectual Disability Associated With Fragile Site Fraxe

  • Fraxe Intellectual Deficit

  • Intellectual Disability Associated With Fragile Site Fraxe

Epidemic Typhus
  • Typhus

  • Typhus Fever

  • Epidemic Louse-Borne Typhus Fever Due To Rickettsia Prowazekii

  • Murine Typhus

  • Classical Typhus

  • Endemic Flea-Borne Typhus

  • Endemic Typhus Fever

  • Epidemic Louse-Borne Typhus

  • Famine Fever

  • Flea-Borne Typhus

  • Jail Fever

  • Louse-Borne Typhus

  • Mexican Typhus

  • Shop Typhus

  • Urban Typhus

  • Brill-Zinsser Disease

  • Endemic Typhus

  • Sylvatic Typhus

  • Epidemic Typhus

  • European Typhus

  • Exanthematic Typhus Fever

  • Exanthematous Typhus

  • Flea Typhus

  • Flea-Borne Rickettsiosis

  • Hospital Fever

  • Louse-Borne [Epidemic] Typhus

  • Louse-Borne Rickettsiosis

  • Moscow Typhus

  • Murine [Endemic] Typhus

  • Petechial Fever

  • Prison Fever

  • Rat Flea Typhus

  • Ship Fever

  • Typhus Exanthematique

  • Typhus, Endemic Flea-Borne

  • Typhus, Epidemic Louse-Borne

  • Typhus Group Rickettsial Disease

  • Relapsing Fever

  • Typhus Fever Nos

  • Typhus Nos

  • Epidemic Typhus Fever

  • Louse-Borne Typhus Fever

  • Classical Typhus Fever

  • Louse-Borne Tabardillo

  • Epidemic Typhus Fever Due To Rickettsia Prowazekii

  • Endemic Murine Typhus

  • Flea-Borne Typhus Fever

  • Murine Endemic Flea Typhus

  • Rat Typhus

  • Typhus Due To Rickettsia Typhi

  • Flea-Borne Tabardillo

  • Rickettsia Typhi Rickettsiosis

  • Mexican Fever

  • Murine Flea-Borne Typhus

  • Mooser Bodies

  • Tsutsugamushi Fever

  • Kedani Fever

  • Mite-Borne Typhus

  • Mite-Borne Typhus Due To Rickettsia Tsutsugamushi

  • Scrub Typhus

  • Tsutsugamushi

  • Tsutsugamushi Disease

  • Scrub Mite-Borne Typhus

  • Sumatran Mite Fever

  • Japanese River Fever

  • Kedani Typhus

  • Rickettsia Tsutsugamushi Rickettsiosis

  • Sumatran Mite Typhus

  • Tropical Typhus

  • Japanese Typhus

Fragile X Syndrome
  • FXS

  • Martin-Bell Syndrome

  • Fraxa Syndrome

  • Marker X Syndrome

  • X-Linked Mental Retardation And Macroorchidism

  • Fragile X Mental Retardation Syndrome

  • Fra Syndrome

  • Mental Retardation, X-Linked, Associated With Marxq28

  • X-Linked Intellectual Disability And Macroorchidism

  • Frax Syndrome

  • Symptomatic Form Of Fragile X Syndrome In Female Carriers

  • Fragile-X Syndrome

  • Fraxe Syndrome

Indian Tick Typhus
Endemic Typhus
  • Murine Typhus

  • Cat Flea Rickettsiosis

  • Fleaborne Typhus

  • Rat-Flea Typhus

  • Rickettsia Felis Spotted Fever

  • Shop Typhus

  • Toulon Typhus

  • Urban Typhus

  • Urban Typhus Of Malaya

  • Flea-Borne Typhus

  • Endemic Flea-Borne Typhus

Premature Menopause
  • Primary Ovarian Insufficiency

  • Premature Ovarian Failure

  • Hypergonadotropic Hypogonadism

  • Premature Ovarian Insufficiency

  • Menopause - Premature

  • Menopause Praecox

  • Menopause Premature

  • Menopause, Premature

  • Female Hypergonadotropic Hypogonadism

  • Hypergonadotrophic Ovarian Failure

  • Primary Female Hypogonadism

  • Pof - [Premature Ovarian Failure]

  • Ovarian Failure

  • Ovarian Secretion Suppression

  • Ovary Hyposecretion

  • Ovary Secretion Deficiency

  • Premature Menopause Nos

Brill-Zinsser Disease
  • Recrudescent Typhus

  • Brill Disease

  • Brill Zinsser Disease

  • Brill'S Disease

  • Latent Typhus

  • Sporadic Typhus

  • Typhus, Epidemic Louse-Borne

  • Recrudescent Typhus Due To Rickettsia Prowazekii

  • Recrudescent Typhus Fever

  • Recrudescent Brill-Zinsser Typhus Due To Rickettsia Prowazekii

  • Recrudescent Brill Disease

  • Recrudescent Typhus Fever Due To Rickettsia Prowazekii

Japanese Spotted Fever
  • Oriental Spotted Fever

  • Rickettsia Japonica Spotted Fever

Pediculus Humanus Corporis Infestation
  • Body Louse Infestation

  • Pediculus Corporis

  • Pediculus Humanus Infestation

Schneiderian Carcinoma
  • Cylindrical Cell Carcinoma

Rocky Mountain Spotted Fever
  • Brazillian Spotted

  • Choix

  • Exanthematic Typhus Of Sao Paulo

  • Fiebre Maculosa

  • Fiebre Manchada

  • Sao Paulo Typhus

  • So Paulo Fever

  • Tick Typhus

  • Tobia Fever

  • Rmsf

  • Typhus, Tick

Non-Syndromic X-Linked Intellectual Disability 72
  • Mrx72

Non-Syndromic X-Linked Intellectual Disability 41
  • Mrx41

  • Mrx48

  • X-Linked Mental Retardation 48

Spotted Fever
  • Spotted Fevers

  • Spotted Fever Group Rickettsial Disease

  • Tick-Borne Rickettsioses

  • Tick-Borne Typhus Nos

  • Rocky Mountain Spotted Fever

  • Sao Paulo Fever

  • Sao Paulo Typhus

  • Lone Star Spotted Fever

  • Colombian Spotted Fever

  • American Spotted Fever

  • Tick Typhus Due To Rickettsia Rickettsii

  • Rocky Mountain Tick Fever

  • Boutonneuse Fever

  • Mediterranean Tick Fever

  • Fièvre Boutonneuse

  • Mediterranean Spotted Fever

  • Tick Typhus Due To Rickettsia Conorii

  • African Tick Typhus

  • Indian Tick Typhus

  • Kenya Tick Typhus

  • North Asian Tick Fever

  • Siberian Tick Typhus

  • Tick Typhus Due To Rickettsia Siberica

  • North Asian Spotted Fever

  • Queensland Tick Typhus

  • Queensland Fever

Flinders Island Spotted Fever
  • Fisf

  • Thai Tick Typhus

Interstitial Myocarditis
Mucopolysaccharidosis, Type Ii
  • Hunter Syndrome

  • Iduronate 2-Sulfatase Deficiency

  • Mucopolysaccharidosis Ii

  • Mps Ii

  • Mucopolysaccharidosis Type Ii

  • MPS2

  • Sulfoiduronate Sulfatase Deficiency

  • Mucopolysaccharidosis, Mps-Ii

  • Ids Deficiency

  • Sids Deficiency

  • I2s Deficiency

  • Mucopolysaccharidosis Type 2

  • Mucopolysaccharidosis Type 2, Severe Form

  • Deficiency Of Iduronate-2-Sulphatase

  • Hunter'S Syndrome

  • Mps Ii - Hunter Syndrome

  • Iduronate-2-Sulfatase Deficiency

  • Attenuated Mps

  • Mps 2

  • Severe Mps Ii

  • Mpsii

  • Mucopolysaccharidosis Type 2, Attenuated Form

  • Hunter Syndrome Type B

  • Iduronate 2-Sulfatase Deficiency Type B

  • Mps2b

  • Mpsiib

  • Mucopolysaccharidosis Type 2b

  • Mucopolysaccharidosis Type Ii, Attenuated Form

  • Mucopolysaccharidosis Type Iib

  • Hunter Syndrome Type A

  • Iduronate 2-Sulfatase Deficiency Type A

  • Mps2a

  • Mpsiia

  • Mucopolysaccharidosis Type 2a

  • Mucopolysaccharidosis Type Ii, Severe Form

  • Mucopolysaccharidosis Type Iia

  • Mucopolysaccharidosis 2

  • Hunters Syndrome

  • Iduronate 2-Sulphatase Deficiency

  • Iduronate Sulfatase Deficiency

  • Iduronate Sulphatase Deficiency

  • Sulfo-Iduronate Sulfatase Deficiency

  • Sulfoiduronidate Sulfatase Deficiency

  • Sulpho-Iduronate Sulphatase Deficiency

  • Sulphoiduronidate Sulphatase Deficiency

  • Mps2 - [Mucopolysaccharidosis 2]

African Tick-Bite Fever
  • Rickettsia Africae Spotted Fever

  • South African Tick-Bite Fever

  • African Tick Bite Fever

Meier-Gorlin Syndrome 2
  • MGORS2

  • Meier-Gorlin Syndrome, Type 2

Epilepsy, Idiopathic Generalized 9
  • Epilepsy, Idiopathic Generalized, Susceptibility To, 9

  • EIG9

  • Epilepsy, Juvenile Myoclonic 6

  • Idiopathic Generalized Epilepsy 9

  • Epilepsy, Juvenile Myoclonic, Susceptibility To, 6

  • Susceptibility To Idiopathic Generalized Epilepsy 9

  • Juvenile Myoclonic Epilepsy 6

  • EJM6

  • Susceptibility To Juvenile Myoclonic Epilepsy 6

  • Epilepsy, Idiopathic, Generalized, Susceptibility To, Type 9

Partington Syndrome
  • X-Linked Reticulate Pigmentary Disorder

  • PRTS

  • Partington X-Linked Mental Retardation Syndrome

  • Mrxs1

  • Mrx36

  • Intellectual Developmental Disorder, X-Linked, Syndromic 1

  • Partington Disease

  • Pdr

  • Partington-Mulley Syndrome

  • Russell-Silver Syndrome, X-Linked

  • Mental Retardation, X-Linked, Syndromic 1

  • Mental Retardation, X-Linked, With Dystonic Movements, Ataxia, And Seizures

  • Mental Retardation, X-Linked 36

  • X-Linked Reticulate Pigmentary Disorder With Systemic Manifestations

  • X-Linked Russell-Silver Syndrome

  • Intelectual Disability-Dystonic Movements-Ataxia-Seizures Syndrome

  • Intellectual Disability, X-Linked, Syndromic 1

  • Intellectual Disability, X-Linked, With Dystonic Movements, Ataxia, And Seizures

  • Partington X-Linked Intellectual Disability Syndrome

  • X-Linked Intellectual Deficit-Dystonia-Dysarthria

  • X-Linked Mental Retardation With Dystonic Movements, Ataxia, And Seizures

  • Familial Cutaneous Amyloidosis

  • X-Linked Cutaneous Amyloidosis

  • Xlpdr

  • X-Linked Intellectual Disability-Dystonia-Dysarthria Syndrome

  • Pigmentary Disorder, Reticulate, With Systemic Manifestations

Retinitis Pigmentosa 24
  • RP24

  • Retinitis Pigmentosa-24

Boutonneuse Fever
  • Mediterranean Spotted Fever

  • African Tick Typhus

  • Boutonneuse Disease

  • Conor And Bruch'S Disease

  • Kenya Fever

  • Kenya Tick Typhus

  • Kenyan Tick Typhus

  • Marseilles Fever

  • Mediterranean Tick Fever

  • Rickettsia Conorii Spotted Fever

  • South African Tick-Bite Fever

  • African Tick Bite Fever

Queensland Tick Typhus
  • Australian Tick Typhus

  • North Queensland Tick Typhus

  • Rickettsia Australis Spotted Fever

Non-Syndromic X-Linked Intellectual Disability 30
  • Mrx30

  • Mrx47

  • X-Linked Mental Retardation 30/47

  • X-Linked Mental Retardation 47

  • Mental Retardation, X-Linked, Type 30/47

Syndromic X-Linked Intellectual Disability
  • X-Linked Syndromic Intellectual Disability

Premature Ovarian Failure 1
  • Ovarian Failure, Premature

  • Fmr1-Related Primary Ovarian Insufficiency

  • Fragile X-Associated Primary Ovarian Insufficiency

  • POF1

  • Pofx

  • Hypergonadotropic Ovarian Failure, X-Linked

  • Pof

  • Primary Ovarian Insufficiency, Fragile X-Associated

  • Primary Ovarian Insufficiency 1

  • Ovarian Failure Premature

  • Premature Ovarian Failure, X-Linked

  • Fragile X Premature Ovarian Failure

  • Fmr1-Related Premature Ovarian Failure

  • Familial Premature Ovarian Failure

  • Idiopathic Familial Premature Ovarian Failure

  • Fxpoi

  • X-Linked Hypergonadotropic Ovarian Failure

  • Hypergonadotropic Ovarian Failure X-Linked

  • Poi

  • Premature Ovarian Failure X-Linked

  • Primary Ovarian Insufficiency

  • Premature Ovarian Failure-1

  • Ovarian Failure, Premature, Type 1

  • Premature Ovarian Failure, Familial

  • Premature Menopause

  • Primary Hypogonadism

  • Turner Syndrome

Jacobsen Syndrome
  • Chromosome 11q Deletion Syndrome

  • Partial 11q Monosomy Syndrome

  • Jacobsen Distal 11q Deletion Syndrome

  • JBS

  • 11q Partial Monosomy Syndrome

  • Chromosome 11q Deletion

  • 11q Deletion

  • 11q Monosomy

  • Deletion 11q

  • Monosomy 11q

  • Partial Monosomy 11q

  • 11q Deletion Disorder

  • 11q Deletion Syndrome

  • 11q Terminal Deletion Disorder

  • 11q- Deletion Syndrome

  • 11q23 Deletion Disorder

  • Jacobsen Thrombocytopenia

  • 11q Terminal Deletion Syndrome

  • Del(11)(Q23.3)

  • Del(11)(Qter)

  • Distal Deletion 11q

  • Distal Monosomy 11q

  • Monosomy 11qter

  • Telomeric Deletion 11q

  • Paris-Trousseau Thrombocytopenia

X-Linked Hereditary Ataxia
Spinal And Bulbar Muscular Atrophy, X-Linked 1
  • Kennedy Disease

  • Sbma

  • Spinal And Bulbar Muscular Atrophy

  • Kennedy'S Disease

  • X-Linked Spinal And Bulbar Muscular Atrophy

  • SMAX1

  • Kd

  • Kennedy Spinal And Bulbar Muscular Atrophy

  • Spinobulbar Muscular Atrophy

  • Bulbospinal Muscular Atrophy, X-Linked

  • Bulbospinal Neuronopathy, X-Linked Recessive

  • Xbsn

  • Spinal And Bulbar Muscular Atrophy Of Kennedy

  • Bulbospinal Muscular Atrophy

  • X-Linked Bulbospinal Amyotrophy

  • Bulbo-Spinal Atrophy, X-Linked

  • Spinal Bulbar Muscular Atrophy

  • X-Linked Bulbo-Spinal Atrophy

  • X-Linked Spinal Bulbar Muscular Atrophy

  • X-Linked Bsma

  • X-Linked Bulbospinal Muscular Atrophy

  • Spinal And Bulbar Muscular Atrophy X-Linked 1

  • Bulbospinal Muscular Atrophy X-Linked

  • Bulbospinal Neuronopathy X-Linked Recessive

  • Kennedy Disease)

  • Kennedy Syndrome

  • Atrophy, Muscular, Spinal And Bulbar, Kennedy Type

  • Atrophy, Muscular, Spinobulbar

  • Bulbospinal Neuronopathy

Fragile X-Associated Tremor/Ataxia Syndrome
  • Fxtas Syndrome

  • Fragile X Tremor/Ataxia Syndrome

  • Fxtas

Syndromic Intellectual Disability
Familial Adult Myoclonic Epilepsy
  • Benign Adult Familial Myoclonus Epilepsy

  • Bafme

  • Benign Adult Familial Myoclonic Epilepsy

  • Fame

  • Familial Cortical Myoclonic Tremor And Epilepsy

  • Fcmte

  • Adcme

  • Autosomal Dominant Cortical Myoclonus And Epilepsy

  • Fam

  • Epilepsy, Myoclonic, Familial Adult

  • Epilepsy, Myoclonic, Benign Adult Familial, Type 2

Non-Syndromic X-Linked Intellectual Disability
  • X-Linked Non-Syndromic Intellectual Disability

  • Non-Specific X-Linked Mental Retardation

  • X-Linked Non-Specific Intellectual Disability

Developmental And Epileptic Encephalopathy 1
  • Epileptic Encephalopathy, Early Infantile, 1

  • Infantile Epileptic-Dyskinetic Encephalopathy

  • DEE1

  • Eiee1

  • Issx1

  • Xmesid

  • X-Linked Infantile Spasm Syndrome 1

  • X-Linked Infantile Spasm Syndrome

  • X-Linked Spasticity-Intellectual Disability-Epilepsy Syndrome

  • Developmental And Epileptic Encephalopathy, 1

  • Infantile Epileptic Dyskinetic Encephalopathy

  • Infantile Spasm Syndrome, X-Linked 1

  • West Syndrome, X-Linked

  • Ohtahara Syndrome, X-Linked

  • Early Infantile Epileptic Encephalopathy 1

  • Early Infantile Epileptic Encephalopathy-1

  • Issx

  • X-Linked Ohtahara Syndrome

  • X-Linked West Syndrome

  • Infantile Spasm Syndrome X-Linked 1

  • Myoclonic Epilepsy X-Linked With Intellectual Disability And Spasticity

  • Ohtahara Syndrome X-Linked

  • West Syndrome X-Linked

  • Encephalopathy, Epileptic, Early Infantile, Type 1

Specific Developmental Disorder
Spinocerebellar Ataxia 1
  • Spinocerebellar Ataxia Type 1

  • SCA1

  • Olivopontocerebellar Atrophy I

  • Opca1

  • Opca4

  • Menzel Type Opca

  • Schut-Haymaker Type Opca

  • Spinocerebellar Atrophy I

  • Opca I

  • Olivopontocerebellar Atrophy Iv

  • Opca Iv

  • Cerebelloparenchymal Disorder I

  • Cpd1

  • Olivopontocerebellar Atrophy 1

  • Cerebelloparenchymal Disorder 1

  • Olivopontocerebellar Atrophy 4

  • Spinocerebellar Atrophy 1

  • Type 1 Spinocerebellar Ataxia

  • Spinocerebellar Ataxia-1

  • Ataxia, Spinocerebellar, Type 1

Spinocerebellar Ataxia 8
  • Spinocerebellar Ataxia Type 8

  • SCA8

  • Ataxia, Spinocerebellar, Type 8

Diseases Alias
Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Macroglobulinemia Of Waldenstrom

Lymphoplasmacytic Lymphoma With Igm Gammopathy

Lymphoplasmacytic Lymphoma

Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Macroglobulinemia Of Waldenstrom

Lymphoplasmacytic Lymphoma With Igm Gammopathy

Lymphoplasmacytic Lymphoma

Orthologs Information

Species Symbol Source ID
Rattus norvegicus AFF2 RGD RGD:1565592
Macaca mulatta AFF2 VGNC VGNC:69773
Felis catus AFF2 VGNC VGNC:59668
Mus musculus AFF2 MGD MGI:1202294
Canis familiaris AFF2 VGNC VGNC:49896
Bos taurus AFF2 VGNC VGNC:25711