POLG2 - DNA polymerase gamma 2, accessory subunit Gene

Also Known as HP55; POLB; PEOA4; POLGB; MTPOLB; MTDPS16; MTDPS16A; MTDPS16B; POLG-BETA

Species: Homo sapiens

Gene Type: protein coding

Gene ID: 11232

About POLG2

Cytogenetic location: 17q23.3 Genomic coordinates (GRCh38): 17:64,477,785-64,497,054 (from NCBI)

This gene has 12 transcripts (splice variants), 190 orthologues, 1 paralogue and is associated with 4 phenotypes. Broad expression in testis (RPKM 7.8), lymph node (RPKM 4.4) and 25 other tissues.

Summary

This gene encodes the processivity subunit of the mitochondrial DNA Polymerase gamma. The encoded protein forms a heterotrimer containing one catalytic subunit and two processivity subunits. This protein enhances DNA binding and promotes processive DNA synthesis. Mutations in this gene result in autosomal dominant progressive external ophthalmoplegia with mitochondrial DNA deletions.[provided by RefSeq, Sep 2009]

POLG2 Products (1)

mRNA	Protein	Name
NM_007215.4	NP_009146.2	DNA polymerase subunit gamma-2, mitochondrial

POLG2 Protein Structure

HGTP_anticodon

0
100
200
300
400
485 a.a.

Protein Preferred Names	Protein Names
DNA polymerase subunit gamma-2, mitochondrial	DNA polymerase gamma accessory 55 kDa subunit

POLG2 Protein-protein interaction Information

Type	Protein Name	Protein ID	Interactor	Interactor Species	Interactor ID	Detection Method	References
Intra	POLG2	Q9UHN1	POLG	Homo sapiens	P54098	Anti Tag CoIP	33961781
Intra	POLG2	Q9UHN1	POLG	Homo sapiens	P54098	X-Ray Diffraction	19837034
Intra	POLG2	Q9UHN1	POLG	Homo sapiens	P54098	ITC	16263719
Intra	POLG2	Q9UHN1	POLG	Homo sapiens	P54098	Anti Tag CoIP	26496610
Intra	POLG2	Q9UHN1	POLG	Homo sapiens	P54098	Anti Tag CoIP	28514442
Intra	POLG2	Q9UHN1	POLG	Homo sapiens	P54098	EM	17762861

Cross: Cross-species interaction Intra: Intraspecies interaction

Related Diseases

Diseases	Alias
Mitochondrial Dna Depletion Syndrome 16b	MTDPS16B Mitochondrial Dna Depletion Syndrome 16b, Neuroophthalmic Type
Progressive External Ophthalmoplegia With Mitochondrial Dna Deletions, Autosomal Dominant 4	PEOA4 Autosomal Dominant Progressive External Ophthalmoplegia With Mitochondrial Dna Deletions 4 Progressive External Ophthalmoplegia With Mitochondrial Dna Deletions, Autosomal Dominant, 4 Chronic Progressive External Ophthalmoplegia Progressive External Ophthalmoplegia, Autosomal Dominant 4 Autosomal Dominant Progressive External Ophthalmoplegia 4 Cpeo Graefe Disease Mitochondrial Ocular Myopathy Ocular Myopathy Of Von Graefe-Fuchs Progressive External Ophthalmoplegia Autosomal Dominant 4 Ophthalmoplegia, External, Progressive, With Mitochondrial Dna Deletions, Autosomal Dominant, Type 4 Kearns-Sayre Syndrome
Mitochondrial Dna Depletion Syndrome 16	MTDPS16 Mitochondrial Dna Depletion Syndrome 16, Hepatic Type
Autosomal Dominant Progressive External Ophthalmoplegia	Adpeo
Acute Liver Failure	Fulminant Hepatic Failure Acute Hepatic Failure Liver Failure Acute Hepatic Failure Fulminant Liver Failure, Acute
Chronic Progressive External Ophthalmoplegia	Progressive External Ophthalmoplegia Cpeo Peo Ophthalmoplegia, Chronic Progressive External Ophthalmoplegia, External, Progressive, Chronic Graefe Disease Peo - [Progressive External Ophthalmoplegia] Ophthalmoplegia Plus Syndrome
Mitochondrial Dna Depletion Syndrome	Mtdna Depletion Syndrome
Mitochondrial Dna Depletion Syndrome 4a	Alpers Syndrome Alpers-Huttenlocher Syndrome Alpers Progressive Infantile Poliodystrophy Alpers Diffuse Degeneration Of Cerebral Gray Matter With Hepatic Cirrhosis Alpers Disease Progressive Sclerosing Poliodystrophy Pndc Diffuse Cerebral Sclerosis Of Schilder MTDPS4A Neuronal Degeneration Of Childhood With Liver Disease, Progressive Alper'S Syndrome Alpers' Disease Or Gray-Matter Degeneration Diffuse Cerebral Degeneration In Infancy Infantile Poliodystrophy Poliodystrophia Cerebri Progressiva Progressive Cerebral Poliodystrophy Alpers' Disease Alpers Progressive Sclerosing Poliodystrophy Progressive Neuronal Degeneration Of Childhood With Liver Disease Ahs Mitochondrial Dna Depletion Syndrome 4a Alpers Type Neuronal Degeneration Of Childhood With Liver Disease Progressive
Parkinsonism	Parkinsonism-Plus Idiopathic Parkinsonism Primary Parkinsonism Paralysis Agitans Syndrome Parkinsonian Syndrome Trembling Paralysis Paralysis Agitans Shaking Palsy Shaking Paralysis
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
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
Kearns-Sayre Syndrome	Ophthalmoplegia Mitochondrial Cytopathy KSS Ophthalmoplegia, Pigmentary Degeneration Of Retina, And Cardiomyopathy Oculocraniosomatic Syndrome Chronic Progressive External Ophthalmoplegia With Myopathy Cpeo With Myopathy Total Ophthalmoplegia Ophthalmoplegia-Plus Syndrome Ophthalmoplegia, Progressive External, With Ragged-Red Fibers Cpeo With Ragged-Red Fibers Oculomotor Paralysis Renal Tubulopathy, Diabetes Mellitus, And Cerebellar Ataxia Due To Duplication O Renal Tubulopathy, Diabetes Mellitus, And Cerebellar Ataxia Due To Duplication Of Mitochondrial Dna Proximal Tubulopathy, Diabetes Mellitus And Cerebellar Ataxia Cpeo With Ragged Red Fibers Ophthalmoplegia Plus Syndrome Ophthalmoplegia, Progressive External, With Ragged Red Fibers Kearns-Sayre Mitochondrial Cytopathy Mitochondrial Myopathies
Axonal Neuropathy
Mitochondrial Disease	Mitochondrial Diseases Mitochondrial Disorder
Metabolic Acidosis
Mitochondrial Dna Depletion Syndrome 6	Navajo Neurohepatopathy Navajo Neuropathy MTDPS6 Nnh Nn Mpv17-Related Hepatocerebral Mitochondrial Dna Depletion Syndrome Navajo Familial Neurogenic Arthropathy Mpv17-Associated Hepatocerebral Mds Mitochondrial Dna Depletion 6 Hepatocerebral Type Mitochondrial Dna Depletion Syndrome , Type 6
Polyneuropathy	Polyneuropathies
Myopathy	Muscular Diseases Myopathies
Mitochondrial Dna Depletion Syndrome 2	Mitochondrial Dna Depletion Syndrome, Myopathic Form MTDPS2 Tk2-Related Mitochondrial Dna Depletion Syndrome, Myopathic Form Mitochondrial Dna Depletion Myopathy, Tk2-Related Tk2-Related Mitochondrial Dna Depletion Myopathy Mtdna Depletion Syndrome, Myopathic Form Mitochondrial Dna Depletion Myopathy Tk2-Related Mitochondrial Dna Depletion Syndrome 2 Myopathic Type Myopathic Mitochondrial Dna Depletion Syndrome Mitochondrial Dna Depletion Syndrome, Type 2
Toxic Optic Neuropathy
Mitochondrial Dna Depletion Syndrome 4b	Mitochondrial Neurogastrointestinal Encephalopathy Syndrome Mngie Syndrome Thymidine Phosphorylase Deficiency MTDPS4B Mitochondrial Neurogastrointestinal Encephalopathy Disease Mngie Myoneurogastrointestinal Encephalopathy Syndrome Ogimd Oculogastrointestinal Muscular Dystrophy Polip Polyneuropathy, Ophthalmoplegia, Leukoencephalopathy, And Intestinal Pseudo-Obstruction Mitochondrial Neurogastrointestinal Encephalopathy Syndrome, Polg-Related Mngie, Polg-Related Mepop Mitochondrial Myopathy With Sensorimotor Polyneuropathy, Ophthalmoplegia, And Pseudo-Obstruction Mngie Disease Mitochondrial Dna Depletion Syndrome 4b Mngie Type Mitochondrial Neurogastrointestinal Encephalopathy Syndrome Polg-Related Mngie Polg-Related Mitochondrial Dna Depletion Syndrome, Type 4b Visceral Myopathy Familial External Ophthalmoplegia
Ocular Motility Disease	Ocular Motility Disorders Abnormality Of Eye Movement Disorder Of Eye Movements Eye Movement Disorder Eye Movement Disorders
Mitochondrial Metabolism Disease	Abnormality Of Mitochondrial Metabolism Mitochondrial Diseases
Mitochondrial Myopathy	Mitochondrial Myopathies Mitochondrial Cytopathy Myopathies In Mitochondrial Disorders
3-Methylglutaconic Aciduria, Type Iii	Optic Atrophy 3-Methylglutaconic Aciduria Type 3 Costeff Syndrome Mga3 Costeff Optic Atrophy Syndrome Optic Atrophy Plus Syndrome Infantile Optic Atrophy With Chorea And Spastic Paraplegia 3-Methylglutaconic Aciduria Type Iii Autosomal Recessive Optic Atrophy Plus Syndrome Autosomal Recessive Optic Atrophy Type 3 Opa3 Defect MGCA3 Mga, Type Iii Iraqi Jewish Optic Atrophy Plus Mga Type Iii Optic Atrophy, Infantile, With Chorea And Spastic Paraplegia Iraqi-Jewish 'Optic Atrophy Plus' Optic Atrophy 3, Autosomal Recessive Opa3, Autosomal Recessive Opa3-Related 3-Methylglutaconic Aciduria Iraqi-Jewish Optic Atrophy Plus Atrophy Of Optic Disc 3-Alpha Methylglutaconic Aciduria Type Iii Optic Atrophy 3 Optic Atrophy Infantile With Chorea And Spastic Paraplegia Autosomal Recessive Opa3 Autosomal Recessive Optic Atrophy 3 3-Methylglutaconic Aciduria 3 3-Alpha-Methylglutaconic Aciduria Type 3 Optic Atrophy 3 Autosomal Recessive Atrophy, Optic Atrophy, Optic, Plus Syndrome Optic Nerve Atrophy Primary Optic Atrophy Oa - [Optic Atrophy] Second Cranial Nerve Atrophy Second Cranium Nerve Atrophy
Mitochondrial Dna Depletion Syndrome 1	MTDPS1 Mitochondrial Neurogastrointestinal Encephalopathy Syndrome, Tymp-Related Myoneurogastrointestinal Encephalopathy Syndrome Polip Syndrome Mitochondrial Dna Depletion Syndrome, Type 1 Mngie, Tymp-Related Polyneuropathy, Ophthalmoplegia, Leukoencephalopathy, And Intestinal Pseudoobstruction Mitochondrial Dna Depletion Syndrome 1, Mngie Type Mitochondrial Neurogastrointestinal Encephalomyopathy Mitochondrial Neurogastrointestinal Encephalopathy Syndrome Tymp-Related Myoneurogastrointestinal Encephalomyopathy Polyneuropathy Ophthalmoplegia Leukoencephalopathy And Intestinal Pseudoobstruction Mitochondrial Neurogastrointestinal Encephalopathy Syndrome
Mitochondrial Dna Depletion Syndrome 3	Deoxyguanosine Kinase Deficiency Mitochondrial Dna Depletion Syndrome, Hepatocerebral Form MTDPS3 Dguok Deficiency Dguok-Related Mitochondrial Dna Depletion Syndrome, Hepatocerebral Form Dguok-Related Mitochondrial Dna Depletion Syndrome Hepatocerebral Mitochondrial Dna Depletion Syndrome Mtdna Depletion Syndrome, Hepatocerebral Form Mitochondrial Dna Depletion Syndrome, Hepatocerebral Form Due To Dguok Deficiency Hepatocerebral Mitochondrial Dna Deletions Syndrome Autosomal Recessive Mitochondrial Dna Depletion Syndrome 3 Hepatocerebral Type Mitochondrial Dna Depletion Syndrome , Type 3
Male Infertility	Infertility, Male Infertility Male Male Sterility Absolute Infertility
Leber Hereditary Optic Neuropathy, Modifier Of	Leber Optic Atrophy Leber Hereditary Optic Neuropathy LHON Leber'S Hereditary Optic Neuropathy Leber Optic Atrophy, Susceptibility To Leber'S Optic Atrophy LOAM Loas Leber'S Disease Leber'S Optic Neuropathy Optic Atrophy, Hereditary, Leber Lhon, Modifier Of Optic Atrophy, Leber Type Hereditary Optic Neuroretinopathy Leber Hereditary Optic Atrophy Loa Optic Atrophy Leber Type Leber Hereditary Optic Neuropathy, Modifier Leber Hereditary Optic Neuropathy Susceptibility Modifier Of Leber Hereditary Optic Neuropathy Lebers Hereditary Optic Neuropathy Leber Congenital Amaurosis
Ptosis	Blepharoptosis Drooping Eyelid Droopy Eyelid Ptosis Of Eyelid Paralysis Of Levator Palpebrae Superioris
Early Myoclonic Encephalopathy	Myoclonic Epilepsy Myoclonic Seizure Epilepsies, Myoclonic Epileptic Seizures - Myoclonic Epileptic Seizures, Myoclonic Myoclonia Epileptica Myoclonic Seizure Disorder Early Myoclonic Encephalopathy With Suppression-Bursts
Perrault Syndrome	Gonadal Dysgenesis, Xx Type, With Deafness Ovarian Dysgenesis With Sensorineural Deafness Gonadal Dysgenesis, Xx Type Gonadal Dysgenesis With Auditory Dysfunction, Autosomal Recessive Inheritance Gonadal Dysgenesis With Sensorineural Deafness, Autosomal Recessive Inheritance Xx Gonodal Dysgenesis-Deafness Syndrome Xx Gonodal Dysgenesis-Hearing Loss Syndrome Gonadal Dysgenesis Xx Type Deafness
Mitochondrial Complex I Deficiency, Nuclear Type 1	Mitochondrial Complex I Deficiency Nadh:Q(1) Oxidoreductase Deficiency MC1DN1 Nadh-Coenzyme Q Reductase Deficiency Isolated Mitochondrial Respiratory Chain Complex I Deficiency Isolated Nadh-Coenzyme Q Reductase Deficiency Isolated Nadh-Coq Reductase Deficiency Isolated Nadh-Ubiquinone Reductase Deficiency Mitochondrial Nadh Dehydrogenase Component Of Complex I, Deficiency Of Nuclear Type Mitochondrial Complex I Deficiency 1 Isolated Complex I Deficiency Complex 1 Mitochondrial Respiratory Chain Deficiency Nadh Coenzyme Q Reductase Deficiency Complex I Mitochondrial Respiratory Chain Deficiency Deficiency Of Mitochondrial Nadh Dehydrogenase Component Of Complex I Nadh:Ubiquinone Oxidoreductase Deficiency Complex I, Mitochondrial Respiratory Chain, Deficiency Of

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

Related Agents

Pre-clinical Phase

Pre-clinical Phase

Bioactive Molecules (3)

Cat. No.	Product Name	Effect	Purity	Rare Diseases
HY-RS10830	POLG2 Human Pre-designed siRNA Set A	Pre-designed Set	/	Unkown
HY-RS22735	Polg2 Mouse Pre-designed siRNA Set A	Pre-designed Set	/	Unkown
HY-RS29249	Polg2 Rat Pre-designed siRNA Set A	Pre-designed Set	/	Unkown

Orthologs Information

Species	Symbol	Source	ID
Macaca mulatta	POLG2	VGNC	VGNC:76206
Rattus norvegicus	POLG2	RGD	RGD:1305128
Bos taurus	POLG2	VGNC	VGNC:33123
Canis familiaris	POLG2	VGNC	VGNC:44782
Mus musculus	POLG2	MGD	MGI:1354947
Felis catus	POLG2	VGNC	VGNC:68941
Others	POLG2	NCBI