TMEM126B

transmembrane protein 126B, the group of Mitochondrial complex I assembly complex

Basic information

Region (hg38): 11:85628573-85636539

Links

ENSG00000171204NCBI:55863OMIM:615533HGNC:30883Uniprot:Q8IUX1AlphaFoldGenCCjaxSfariGnomADPubmedClinVar

Phenotypes

GenCC

Source: genCC

  • mitochondrial complex I deficiency (Supportive), mode of inheritance: AR
  • mitochondrial complex 1 deficiency, nuclear type 29 (Moderate), mode of inheritance: AR
  • mitochondrial complex 1 deficiency, nuclear type 29 (Strong), mode of inheritance: AR
  • mitochondrial disease (Definitive), mode of inheritance: AR

Clinical Genomic Database

Source: CGD

ConditionInheritanceIntervention CategoriesIntervention/Rationale Manifestation CategoriesReferences
Mitochondrial complex I deficiency, nuclear type 29ARCardiovascularAmong other findings, individuals have been described with hypertrophic cardiomyopathy, and awareness may allow prompt diagnosis and managementBiochemical; Cardiovascular; Musculoskeletal; Neurologic27374773; 27374774

ClinVar

This is a list of variants' phenotypes submitted to ClinVar and linked to the TMEM126B gene.

  • not provided (6 variants)
  • Mitochondrial complex 1 deficiency, nuclear type 29 (1 variants)

Variants pathogenicity by type

Statistics on ClinVar variants can assist in determining whether a specific variant type in the TMEM126B gene is commonly pathogenic or not.

In the table, we include only reliable ClinVar variants with their consequences to MANE Select, Mane Plus Clinical transcripts, or transcripts with TSL equals 1. Click the count to view the source variants.

Warning: slight differences between displayed counts and the number of variants in ClinVar may occur, primarily due to (1) the application of a different transcript and/or consequence by our variant effect predictor or (2) differences in clinical significance: we classify Benign/Likely benign variants as Likely benign and Pathogenic/Likely pathogenic variants as Likely pathogenic.

Variant type Pathogenic Likely pathogenic VUS Likely benign Benign Sum
synonymous
10
clinvar
10
missense
1
clinvar
29
clinvar
6
clinvar
2
clinvar
38
nonsense
1
clinvar
1
start loss
0
frameshift
5
clinvar
3
clinvar
8
inframe indel
1
clinvar
1
splice donor/acceptor (+/-2bp)
1
clinvar
1
splice region
1
3
4
non coding
2
clinvar
12
clinvar
5
clinvar
19
Total 6 5 32 28 7

Highest pathogenic variant AF is 0.00000657

Variants in TMEM126B

This is a list of pathogenic ClinVar variants found in the TMEM126B region.

You can filter this list by clicking the number of variants in the Variants pathogenicity by type table.

Position Type Phenotype Significance ClinVar
11-85628617-T-G Inborn genetic diseases Uncertain significance (Jun 17, 2024)3326692
11-85628622-G-T Likely benign (Jul 17, 2023)2168674
11-85628626-G-C Uncertain significance (Nov 06, 2021)1400840
11-85628639-A-C Uncertain significance (May 13, 2024)3253245
11-85628641-C-T Uncertain significance (Nov 11, 2021)1392636
11-85628665-G-C Uncertain significance (May 25, 2022)1995686
11-85628672-C-T Inborn genetic diseases Uncertain significance (Apr 27, 2022)2286406
11-85628677-G-A Uncertain significance (Aug 12, 2022)1716232
11-85628683-CCCAAG-C Pathogenic (Nov 08, 2022)2072804
11-85628706-G-A Likely benign (Jan 17, 2024)1913900
11-85629419-G-A Likely benign (Jul 07, 2018)1218019
11-85629547-C-T Benign (Jun 16, 2018)671603
11-85631673-AT-A TMEM126B-related disorder Benign (Oct 05, 2023)2957668
11-85631688-T-C Benign/Likely benign (Jan 11, 2024)1202470
11-85631689-T-A Likely benign (Jul 08, 2022)2015211
11-85631703-C-G Uncertain significance (Oct 31, 2022)1717366
11-85631730-C-T TMEM126B-related disorder Likely benign (Feb 21, 2024)1203741
11-85631738-G-C Uncertain significance (Feb 24, 2022)1486686
11-85631741-GC-G Mitochondrial complex 1 deficiency, nuclear type 29 Pathogenic (Apr 17, 2023)997635
11-85631766-T-C Uncertain significance (Dec 10, 2021)2037841
11-85631773-C-T Likely benign (Nov 23, 2022)2720320
11-85631774-A-C Uncertain significance (Dec 01, 2022)2642239
11-85631786-T-G Inborn genetic diseases Uncertain significance (Aug 13, 2021)2214325
11-85631791-CT-C Pathogenic (Jul 15, 2022)1953147
11-85631793-A-G Uncertain significance (Sep 07, 2022)1901073

GnomAD

Source: gnomAD

GeneTypeBio TypeTranscript Coding Exons Length
TMEM126Bprotein_codingprotein_codingENST00000358867 57952
pLI Probability
LOF Intolerant
pRec Probability
LOF Recessive
Individuals with
no LOFs
Individuals with
Homozygous LOFs
Individuals with
Heterozygous LOFs
Defined p
0.0001860.4861247970411248380.000164
Z-Score Observed Expected Observed/Expected Mutation Rate Total Possible in Transcript
Missense-0.1791281221.050.000005851502
Missense in Polyphen2229.5210.74524406
Synonymous0.2244041.80.9560.00000209440
Loss of Function0.33866.960.8622.87e-7110

LoF frequencies by population

EthnicitySum of pLOFs p
African & African-American0.001230.00115
Ashkenazi Jewish0.0001060.0000994
East Asian0.000.00
Finnish0.00004660.0000462
European (Non-Finnish)0.00002820.0000265
Middle Eastern0.000.00
South Asian0.0006490.000501
Other0.000.00

dbNSFP

Source: dbNSFP

Function
FUNCTION: Chaperone protein involved in the assembly of the mitochondrial NADH:ubiquinone oxidoreductase complex (complex I). Participates in constructing the membrane arm of complex I. {ECO:0000269|PubMed:24191001}.;
Pathway
Respiratory electron transport;The citric acid (TCA) cycle and respiratory electron transport;Metabolism;Complex I biogenesis;Respiratory electron transport, ATP synthesis by chemiosmotic coupling, and heat production by uncoupling proteins. (Consensus)

Recessive Scores

pRec
0.0730

Intolerance Scores

loftool
0.918
rvis_EVS
0.39
rvis_percentile_EVS
76.05

Haploinsufficiency Scores

pHI
0.0652
hipred
N
hipred_score
0.112
ghis
0.529

Essentials

essential_gene_CRISPR
N
essential_gene_CRISPR2
N
essential_gene_gene_trap
N
gene_indispensability_pred
N
gene_indispensability_score
0.0656

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium

Mouse Genome Informatics

Gene name
Tmem126b
Phenotype

Gene ontology

Biological process
biological_process;mitochondrial respiratory chain complex I assembly
Cellular component
cellular_component;mitochondrion;mitochondrial inner membrane;integral component of membrane
Molecular function
molecular_function;protein binding