5-140642592-C-G

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.

The NM_018502.5(TMCO6):c.610C>G(p.His204Asp) variant causes a missense change. The variant allele was found at a frequency of 0.000375 in 1,614,230 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00027 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00039 ( 0 hom. )

Consequence

TMCO6
NM_018502.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.88

Publications

2 publications found

Variant links:

Genes affected

TMCO6 (HGNC:28814): (transmembrane and coiled-coil domains 6) Predicted to enable nuclear import signal receptor activity. Predicted to be involved in protein import into nucleus. Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

TMCO6 links:

NDUFA2 (HGNC:7685): (NADH:ubiquinone oxidoreductase subunit A2) The encoded protein is a subunit of the hydrophobic protein fraction of the NADH:ubiquinone oxidoreductase (complex 1), the first enzyme complex in the electron transport chain located in the inner mitochondrial membrane, and may be involved in regulating complex I activity or its assembly via assistance in redox processes. Mutations in this gene are associated with Leigh syndrome, an early-onset progressive neurodegenerative disorder. Alternative splicing results in multiple transcript variants.[provided by RefSeq, May 2010]

NDUFA2 Gene-Disease associations (from GenCC):

mitochondrial complex I deficiency, nuclear type 13
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
Leigh syndrome
Inheritance: AR Classification: MODERATE Submitted by: ClinGen
cystic leukoencephalopathy without megalencephaly
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
Leigh syndrome with leukodystrophy
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

NDUFA2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TMCO6	NM_018502.5 link	c.610C>G	p.His204Asp	missense_variant	Exon 6 of 12	ENST00000394671.8	NP_060972.3	Q96DC7-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TMCO6	ENST00000394671.8 link	c.610C>G	p.His204Asp	missense_variant	Exon 6 of 12	2	NM_018502.5	ENSP00000378166.3		Q96DC7-1

Frequencies

GnomAD3 genomes

AF:

0.000269

AC:

AN:

152242

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000529

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000244

AC:

AN:

249568

AF XY:

0.000251

show subpopulations

Gnomad AFR exome

AF:

0.0000646

Gnomad AMR exome

AF:

0.0000579

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000494

Gnomad OTH exome

AF:

0.000330

GnomAD4 exome

AF:

0.000386

AC:

565

AN:

1461870

Hom.:

Cov.:

AF XY:

0.000384

AC XY:

279

AN XY:

727240

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.0000894

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53412

Middle Eastern (MID)

AF:

0.000347

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000487

AC:

541

AN:

1111996

Other (OTH)

AF:

0.000298

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.469

Heterozygous variant carriers

125

156

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.000269

AC:

AN:

152360

Hom.:

Cov.:

AF XY:

0.000295

AC XY:

AN XY:

74510

show subpopulations

African (AFR)

AF:

0.0000722

AC:

AN:

41578

American (AMR)

AF:

0.0000653

AC:

AN:

15306

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5188

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000529

AC:

AN:

68042

Other (OTH)

AF:

0.000473

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.507

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000454

Hom.:

Bravo

AF:

0.000344

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.000778

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000364

AC:

ExAC

AF:

0.000273

AC:

EpiCase

AF:

0.000654

EpiControl

AF:

0.000711

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 27, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.610C>G (p.H204D) alteration is located in exon 6 (coding exon 6) of the TMCO6 gene. This alteration results from a C to G substitution at nucleotide position 610, causing the histidine (H) at amino acid position 204 to be replaced by an aspartic acid (D). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.15

BayesDel_addAF

Benign

-0.23

BayesDel_noAF

Benign

-0.22

CADD

Uncertain

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.21

T;.

Eigen

Uncertain

0.45

Eigen_PC

Uncertain

0.51

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.88

D;D

M_CAP

Benign

0.019

MetaRNN

Uncertain

0.63

D;D

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.8

L;L

PhyloP100

4.9

PrimateAI

Uncertain

0.53

PROVEAN

Uncertain

-2.8

D;D

REVEL

Benign

0.21

Sift

Uncertain

0.011

D;D

Sift4G

Uncertain

0.036

D;D

Polyphen

1.0

D;D

Vest4

0.78

MVP

0.55

MPC

0.92

ClinPred

0.14

GERP RS

5.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.27

gMVP

0.47

Mutation Taster

=221/79

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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5-140642592-C-G

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over