1. Gene
  2. TTPA - alpha tocopherol transfer protein Gene

TTPA - alpha tocopherol transfer protein Gene

Homo sapiens

Also known as ATTP; AVED; TTP1; alphaTTP

Gene ID: 7274 | Gene type: protein coding

About TTPA

Cytogenetic location: 8q12.3 Genomic coordinates (GRCh38): 8:63,059,488-63,086,053 (from NCBI)

This gene has 2 transcripts (splice variants), 205 orthologues, 6 paralogues and is associated with 3 phenotypes. Biased expression in liver (RPKM 30.1) and colon (RPKM 1.4).

Summary

This gene encodes a soluble protein that binds alpha-trocopherol, a form of vitamin E, with high selectivity and affinity. This protein plays an important role in regulating vitamin E levels in the body by transporting vitamin E between membrane vesicles and facilitating the secretion of vitamin E from hepatocytes to circulating lipoproteins. Mutations in this gene cause hereditary vitamin E deficiency (ataxia with vitamin E deficiency, AVED) and retinitis pigmentosa. [provided by RefSeq, Nov 2009]

TTPA Products(6)

mRNA Protein Name
NM_000370.3 NP_000361.1 alpha-tocopherol transfer protein isoform 1
NM_001413414.1 NP_001400343.1 alpha-tocopherol transfer protein isoform 2
NM_001413415.1 NP_001400344.1 alpha-tocopherol transfer protein isoform 3
NM_001413416.1 NP_001400345.1 alpha-tocopherol transfer protein isoform 4
NM_001413417.1 NP_001400346.1 alpha-tocopherol transfer protein isoform 5
NM_001413418.1 NP_001400347.1 alpha-tocopherol transfer protein isoform 6
Gene Ontology
  • Molecular Function
Molecular Function GO Annotation Evidence Reference Source
enables protein binding IPI
IPI: Inferred from physical interaction
25416956 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

TTPA Protein Structure

CRAL_TRIO_N

CRAL_TRIO_N: CRAL/TRIO, N-terminal domain (46 - 73)

CRAL_TRIO

CRAL_TRIO: CRAL/TRIO domain (97 - 248)

  • 0
  • 100
  • 200
  • 278 a.a.
Protein Preferred Names Protein Names

alpha-tocopherol transfer protein

alpha-TTP

Related Diseases

Diseases Alias
Ataxia With Vitamin E Deficiency

Ataxia With Isolated Vitamin E Deficiency

AVED

Familial Isolated Vitamin E Deficiency

Friedreich-Like Ataxia

Familial Isolated Deficiency Of Vitamin E

Isolated Vitamin E Deficiency

Ataxia, Friedreich-Like, With Selective Vitamin E Deficiency

Vitamin E Deficiency, Familial Isolated

Ved

Friedreich-Like Ataxia With Selective Vitamin E Deficiency

Five

Friedreich Ataxia Phenotype With Selective Vitamin E Deficiency

Vitamin E Familial Isolated, Deficiency Of

Ataxia Friedreich-Like With Selective Vitamin E Deficiency

Friedreich Ataxia

Friedreich Ataxia 1

FRDA

Friedreich Ataxia With Retained Reflexes

Frda1

Fa

Friedreich'S Ataxia

Hereditary Spinal Ataxia

Fa1

Friedreich'S Tabes

Hereditary Spinal Sclerosis

Spinocerebellar Ataxia, Friedreich

Friedreich Spinocerebellar Ataxia

Friedrich'S Ataxia

Abetalipoproteinemia

Acanthocytosis

ABL

Bassen-Kornzweig Syndrome

Mtp Deficiency

Familial Hypobetalipoproteinemia

Abetalipoproteinaemia

Microsomal Triglyceride Transfer Protein Deficiency

Microsomal Triglyceride Transfer Protein Deficiency Disease

Abetalipoproteinemia Neuropathy

Apolipoprotein B Deficiency

Bassen-Kornzweig Disease

Betalipoprotein Deficiency Disease

Congenital Betalipoprotein Deficiency Syndrome

Homozygous Familial Hypobetalipoproteinemia

Fhbl

Bassen Kornzweig Syndrome

Hypobetalipoproteinemia, Familial

Hypobetalipoproteinemia

Hypobetalipoproteinemias

Hypobetalipoproteinemia, Familial, Apolipoprotein B

Cerebellar Ataxia, Cayman Type

Cayman Type Cerebellar Ataxia

Ataxia, Cerebellar, Cayman Type

ATCAY

Cayman Cerebellar Ataxia

Cayman Ataxia

Tabes Dorsalis

Posterior Spinal Sclerosis

Tabes Dorsalis - Neurosyphilis

Syphilitic Myelopathy

Retinitis Pigmentosa

RP

Rod-Cone Dystrophy

Autosomal Recessive Retinitis Pigmentosa

Non-Syndromic Retinitis Pigmentosa

Pericentral Pigmentary Retinopathy

Pigmentary Retinopathy

Tapetoretinal Degeneration

Rcd

Retinitis Pigmentosa Autosomal Recessive

ARRP

Retinitis Pigmentosa, Autosomal Recessive

Retinitis Pigmentosa 1

Spastic Ataxia, Charlevoix-Saguenay Type

Charlevoix-Saguenay Spastic Ataxia

Autosomal Recessive Spastic Ataxia Of Charlevoix-Saguenay

Arsacs

SACS

Spax6

Spastic Ataxia Charlevoix-Saguenay Type

Spastic Ataxia 6, Autosomal Recessive

Autosomal Recessive Spastic Ataxia Type 6

Spastic Ataxia Of Charlevoix-Saguenay

Atx/Hsp-Sacs

Ataxia, Spastic, Charlevoix-Saguenay Type

Progressive External Ophthalmoplegia With Mitochondrial Dna Deletions, Autosomal Dominant 3

PEOA3

Autosomal Dominant Progressive External Ophthalmoplegia With Mitochondrial Dna Deletions 3

Progressive External Ophthalmoplegia With Mitochondrial Dna Deletions, Autosomal Dominant, 3

Chronic Progressive External Ophthalmoplegia

Progressive External Ophthalmoplegia, Autosomal Dominant 3

Autosomal Dominant Progressive External Ophthalmoplegia 3

Cpeo

Graefe Disease

Mitochondrial Ocular Myopathy

Ocular Myopathy Of Von Graefe-Fuchs

Progressive External Ophthalmoplegia Autosomal Dominant 3

Progressive External Ophthalmoplegia, Autosomal Dominant, 3

Ophthalmoplegia, External, Progressive, With Mitochondrial Dna Deletions, Autosomal Dominant, Type 3

Kearns-Sayre Syndrome

Lichtenstein-Knorr Syndrome

Scar19

LIKNS

Autosomal Recessive Spinocerebellar Ataxia 19

Spinocerebellar Ataxia, Autosomal Recessive 19

Progressive Autosomal Recessive Ataxia-Deafness Syndrome

Progressive Autosomal Recessive Ataxia-Sensorineural Hearing Loss Syndrome

Spinocerebellar Ataxia, Autosomal Recessive, 19

Refsum Disease, Classic

Refsum Disease

Heredopathia Atactica Polyneuritiformis

Phytanic Acid Oxidase Deficiency

Hmsn Iv

Refsum Disease, Adult, 1

Refsum'S Disease

Phytanic Acid Storage Disease

Hereditary Motor And Sensory Neuropathy Iv

Hmsn4

Hmsn Type Iv

Hmsn 4

Adult Refsum Disease

Classic Refsum Disease

Hereditary Motor And Sensory Neuropathy Type Iv

Refsum Syndrome

Hsmn Iv

Disorder Of Cornification 11

Doc 11

Hereditary Sensory And Motor Neuropathy Type 4

Hypertrophic Neuropathy Of Refsum

Ard

Crd

Hereditary Motor And Sensory Neuropathy Type 4

Phytanic-Coa Hydroxylase Deficiency

RD

Autosomal Dominant Cerebellar Ataxia

Spinocerebellar Ataxia

Adca

Pierre Marie Cerebellar Ataxia

Ataxia, Spinocerebellar

Sca

Autosomal Dominant Spinocerebellar Ataxia

Spinocerebellar Ataxias

Spinocerebellar Ataxia, Autosomal Recessive 27

SCAR27

Autosomal Recessive Spinocerebellar Ataxia 27

Spinocerebellar Ataxia, Autosomal Recessive, 27

Ataxia, Early-Onset, With Oculomotor Apraxia And Hypoalbuminemia

Aoa1

Ataxia-Telangiectasia-Like Disorder

EAOH

Eoca-Ha

Ataxia With Oculomotor Apraxia Type 1

Ataxia-Oculomotor Apraxia 1

Ataxia-Oculomotor Apraxia Syndrome

AOA

Ataxia-Telangiectasia-Like Syndrome

Ataxia-Oculomotor Apraxia Type 1

Ataxia With Oculomotor Apraxia

Cerebellar Ataxia, Early-Onset, With Hypoalbuminemia

Early-Onset Ataxia With Oculomotor Apraxia And Hypoalbuminemia

Early-Onset Cerebellar Ataxia With Hypoalbuminemia

Adult Onset Ataxia With Oculomotor Apraxia

Early-Onset Ataxia With Ocular Motor Apraxia And Hypoalbuminemia

Scan2

Scar1

Spinocerebellar Ataxia With Axonal Neuropathy Type 2

Spinocerebellar Ataxia, Recessive, Non-Friedreich Type 1

Atld

Ataxia Early-Onset With Oculomotor Apraxia And Hypoalbuminemia

Cerebellar Ataxia Early-Onset With Hypoalbuminemia

Ataxia-Oculomotor Apraxia

Spinocerebellar Ataxia, Autosomal Recessive 1

Marinesco-Sjogren Syndrome

Marinesco-Sjögren Syndrome

MSS

Marinesco-Garland Syndrome

Garland-Moorhouse Syndrome

Hereditary Oligophrenic Cerebello-Lental Degeneration

Oligophrenic Cerebellolenticular Degeneration

Marinesco-Sjogren Syndrome-Hypergonadotrophic Hypogonadism

Marinesco-Sjogren Syndrome-Myopathy

Marinesco-Sjogren-Garland Syndrome

Marinesco-Sjoegren Syndrome

Dissociated Nystagmus
Tertiary Syphilis

Late Syphilis

Syphilis, Tertiary

Late Syphilis, Unspecified

Late Tertiary Syphilis

Spinocerebellar Ataxia, X-Linked 1

X-Linked Progressive Cerebellar Ataxia

SCAX1

Opcax

X-Linked Spinocerebellar Ataxia 1

Olivopontocerebellar Atrophy, X-Linked

Opca, X-Linked

Olivopontocerebellar Atrophy X-Linked

Opca X-Linked

Ataxia, Spinocerebellar, X-Linked Type 1

Early Congenital Syphilis
Tertiary Neurosyphilis

Late Neurosyphilis

Late Syphilis Of Central Nervous System Nos

Spinocerebellar Ataxia, Autosomal Recessive, With Axonal Neuropathy 2

Aoa2

Ataxia With Oculomotor Apraxia Type 2

Scar1

SCAN2

Ataxia-Oculomotor Apraxia 2

Ataxia-Ocular Apraxia 2

Ataxia-Oculomotor Apraxia Type 2

Scan 2

Spinocerebellar Ataxia With Axonal Neuropathy Type 2

Spinocerebellar Ataxia, Autosomal Recessive 1, Formerly

Scar1, Formerly

Autosomal Recessive Spinocerebellar Ataxia-1

Spinocerebellar Ataxia, Autosomal Recessive, 1

Ataxia-Ocular Apraxia-2

Spinocerebellar Ataxia, Autosomal Recessive 1

Vitamin Metabolic Disorder
Meningovascular Neurosyphilis
Cerebrotendinous Xanthomatosis

CTX

Cerebral Cholesterinosis

Cholestanol Storage Disease

Xanthomatosis, Cerebrotendinous

Sterol 27-Hydroxylase Deficiency

Xanthomatosis Cerebrotendinous

Cerebrotendinous Cholesterinosis

Cholestanolosis

Van Bogaert-Scherer-Epstein Disease

Hypolipoproteinemia

Hypolipoproteinaemia

Lipoprotein Deficiencies

Lipoprotein Disorder

Hypolipoproteinemias

Lipoprotein

Lipoprotein Deficiency

Hypolipidaemia

Lipoprotein Deficiency Disorder

High-Density Lipoid Deficiency

High-Density Lipoprotein Deficiency

Dyslipidaemia, Depressed Hdl Cholesterol

Vestibular Nystagmus

Nystagmus Associated With Disorder Of The Vestibular System

Autosomal Recessive Cerebellar Ataxia

Arca

X-Linked Cerebellar Ataxia
Intellectual Developmental Disorder, X-Linked, Syndromic, Billuart Type

MRXSBL

Mental Retardation, X-Linked, With Cerebellar Hypoplasia And Distinctive Facial Appearance

X-Linked Mental Retardation With Cerebellar Hypoplasia And Distinctive Facial Appearance

Mental Retardation, X-Linked 60, Formerly

Mrx60, Formerly

Intellectual Developmental Disorder, X-Linked Syndromic, Billuart Type

Mrx60

Mental Retardation, X-Linked, With Cerebellar Hypoplasia, Distinctive Facial Appearance

Mitochondrial Complex Iii Deficiency, Nuclear Type 2

Mitochondrial Complex Iii Deficiency Nuclear Type 2

MC3DN2

Mitochondrial Complex Ii Deficiency, Nuclear Type 3

MC2DN3

Mitochondrial Complex 2 Deficiency, Nuclear Type 3

Mitochondrial Complex Iii Deficiency, Nuclear 2

Mitochondrial Dna Depletion Syndrome 7

Ohaha Syndrome

Infantile Onset Spinocerebellar Ataxia

Iosca

Infantile-Onset Spinocerebellar Ataxia

Spinocerebellar Ataxia 8

MTDPS7

Ophthalmoplegia, Hypotonia, Ataxia, Hypacusis, And Athetosis

Ophthalmoplegia-Hypotonia-Ataxia-Hypoacusis-Athetosis Syndrome

Sca8

Spinocerebellar Ataxia Infantile With Sensory Neuropathy

Spinocerebellar Ataxia, Infantile-Onset

Ophthalmoplegia, Hypotonia, Ataxia, Hypoacusis, And Athetosis

Spinocerebellar Ataxia, Infantile, With Sensory Neuropathy

Spinocerebellar Ataxia 8, Formerly

Sca8, Formerly

Iosca, Mitochondrial Dna Depletion Syndrome 7

Ophthalmoplegia - Hypotonia - Ataxia - Hypoacusis - Athetosis

Mitochondrial Dna Depletion Syndrome, Hepatocerebrorenal Form

Mtdna Depletion Syndrome, Hepatocerebrorenal Form

Mitochondrial Dna Depletion Syndrome 7 Hepatocerebral Type

Ophthalmoplegia Hypotonia Ataxia Hypoacusis And Athetosis

Pure Spinocerebellar Ataxia Japanese Type

Sca4 Pure Japanese Type

Spinocerebellar Ataxia Infantile-Onset

Mitochondrial Dna Depletion Syndrome , Type 7

Sensory Ataxic Neuropathy, Dysarthria, And Ophthalmoparesis

SANDO

Mitochondrial Recessive Ataxia Syndrome

Spinocerebellar Ataxia With Epilepsy

Epilepsy, Progressive Myoclonic 5

Epm5

Miras

SCAE

Sensory Ataxic Neuropathy With Mitochondrial Dna Deletions, Autosomal Recessive

Autosomal Recessive Sensory Ataxic Neuropathy With Mitochondrial Dna Deletions

Progressive Myoclonic Epilepsy Type 5

Pme Type 5

Progressive Myoclonus Epilepsy Type 5

Sensory Ataxic Neuropathy-Dysarthria-Ophthalmoparesis Syndrome

Recessive Mitochondrial Ataxia Syndrome

Sensory Ataxic Neuropathy Dysarthria And Ophthalmoparesis

Mitochondrial Spinocerebellar Ataxia-Epilepsy Syndrome

Mscae

Sensory Ataxic Neuropathy With Mitochondrial Dna Deletions Autosomal Recessive

Progressive Myoclonic Epilepsy With Sensory Ataxic Neuropathy

Epilepsy, Progressive Myoclonic, 5

Ataxia Neuropathy Spectrum

Spinocerebellar Ataxia, Autosomal Recessive 8

Arca1

Autosomal Recessive Cerebellar Ataxia Type 1

SCAR8

Autosomal Recessive Spinocerebellar Ataxia 8

Autosomal Recessive Ataxia, Beauce Type

Recessive Ataxia Of Beauce

Syne1-Related Autosomal Recessive Cerebellar Ataxia

Ataxia, Recessive, Of Beauce

Cerebellar Ataxia, Autosomal Recessive, Type 1

Spinocerebellar Ataxia Autosomal Recessive 8

Autosomal Recessive Ataxia Beauce Type

Spinocerebellar Ataxia, Autosomal Recessive, 8

Ataxia Recessive Of Beauce

Ataxia, Spinocerebellar, Autosomal Recessive, Type 8

Spastic Paraplegia 7, Autosomal Recessive

SPG7

Hereditary Spastic Paraplegia 7

Spastic Paraplegia Type 7

Spastic Paraplegia 7

Hereditary Spastic Paraplegia, Paraplegin Type

Autosomal Recessive Spastic Paraplegia 7

Hereditary Spastic Paraplegia Paraplegin Type

Spastic Paraplegia-7

Paraplegia, Spastic, Autosomal Recessive, Type 7

Spastic Paraplegia, Hereditary

Autosomal Recessive Hereditary Spastic Paraplegia

Dystonia

Dystonic Disease

Dystonic Disorder

Dystonia Disorders

Neuroleptic Dyskinesia

Hereditary Ataxia

Sca

Spinocerebellar Ataxia

Ataxias Hereditary

Ataxias, Hereditary

Cerebellar Disease

Cerebellar Diseases

Cerebellar Dysfunction

Cerebellar Abnormality

Cerebellar Disorders

Dystonia 11, Myoclonic

Myoclonic Dystonia

Myoclonus-Dystonia Syndrome

DYT11

Myoclonic Dystonia 11

Alcohol-Responsive Dystonia

Myoclonus, Hereditary Essential

Dystonia-11, Myoclonic

Myoclonus-Dystonia

Dystonia 11

Hereditary Essential Myoclonus

Dystonia, Alcohol-Responsive

Dyt-Sgce

Dystonia, Alcohol Responsive

Dystonia-11

Dystonia, Myoclonic

Dystonia, Myoclonic, Type 11

Cerebellar Ataxia, Mental Retardation, And Dysequilibrium Syndrome 1

Dysequilibrium Syndrome

CAMRQ1

Des

Cerebellar Ataxia, Intellectual Disability, And Dysequilibrium Syndrome 1

Cerebellar Hypoplasia, Vldlr-Associated

Cerebellar Hypoplasia And Mental Retardation With Or Without Quadrupedal Locomotion 1

Cerebellar Ataxia, Mental Retardation And Dysequlibrium Syndrome

Uner Tan Syndrome

Vldlr Cerebellar Hypoplasia

Vldlrch

Vldlr-Associated Cerebellar Hypoplasia

Cerebellar Ataxia And Mental Retardation With Or Without Quadrupedal Locomotion 1

Cerebellar Ataxia, Congenital, And Mental Retardation, Autosomal Recessive

Camrq

Cerebellar Ataxia, Mental Retardation, Dysequilibrium Syndrome 1

Cerebellar Disorder, Nonprogressive, With Intellectual Disability

Cerebellar Hypoplasia, Vldlr Associated

Autosomal Recessive Cerebellar Ataxia With Mental Retardation

Autosomal Recessive Cerebellar Hypoplasia With Cerebral Gyral Simplification

Cerebellar Disorder, Nonprogressive, With Mental Retardation

Cerebellar Hypoplasia And Mental Retardation With Or Without Quadrupedal Locomotion

Chmrq1

Des-Vldlr

Dysequilibrium Syndrome-Vldlr

Vldlr-Ch

Camrq Syndrome

Cerebellar Ataxia-Intellectual Disability-Dysequilibrium Syndrome Syndrome

Non-Progressive Cerebellar Ataxia-Intellectual Disability Syndrome

Uts

Cerebellar Hypoplasia Vldlr-Associated

Dialysis Disequilibrium Syndrome

Spastic Ataxia

Spax

Ataxia, Spastic

Episodic Ataxia

Isaacs Syndrome

Neuromyotonia

Isaacs' Syndrome

Acquired Neuromyotonia

Continuous Muscle Fiber Activity Syndrome

Quantal Squander Syndrome

Isaacs-Mertens Syndrome

Ea Syndrome

Episodic Ataxia Syndrome

Isaac Syndrome

Isaac'S-Merten'S Syndrome

Isaac-Mertens Syndrome

Peripheral Nerve Hyperexcitability

Ea

Peripheral Nerve Hyperexcitability Syndrome

Ataxia, Episodic

Isaacs Neuromyotonia

Continuous Muscle Fibre Activity

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
Macaca mulatta TTPA VGNC VGNC:104505
Rattus norvegicus TTPA RGD RGD:3915
Bos taurus TTPA VGNC VGNC:36497
Canis familiaris TTPA VGNC VGNC:47981
Felis catus TTPA VGNC VGNC:66691
Mus musculus TTPA MGD MGI:1354168