Genetic Variant NM_016589.4:c.218A>G (chr3-119500718-A-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_016589.4(TIMMDC1):c.218A>G(p.Asp73Gly) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,270 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

TIMMDC1
NM_016589.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.73

Publications

1 publications found

Variant links:

Genes affected

TIMMDC1 (HGNC:1321): (translocase of inner mitochondrial membrane domain containing 1) Located in mitochondrion and nucleoplasm. Implicated in nuclear type mitochondrial complex I deficiency 31. [provided by Alliance of Genome Resources, Apr 2022]

TIMMDC1 Gene-Disease associations (from GenCC):

mitochondrial disease
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
mitochondrial complex I deficiency, nuclear type 31
Inheritance: AR Classification: STRONG, MODERATE Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae), Illumina
mitochondrial complex I deficiency
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
Leigh syndrome
Inheritance: AR Classification: LIMITED Submitted by: ClinGen

TIMMDC1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_016589.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TIMMDC1	NM_016589.4	MANE Select	c.218A>G	p.Asp73Gly	missense	Exon 2 of 7	NP_057673.2	Q9NPL8
	TIMMDC1	NM_001438040.1		c.194+1791A>G		intron	N/A	NP_001424969.1	C9JU35

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
TIMMDC1	ENST00000494664.6	TSL:1 MANE Select	c.218A>G	p.Asp73Gly	missense	Exon 2 of 7	ENSP00000418803.1	Q9NPL8
TIMMDC1	ENST00000264244.7	TSL:1	n.218A>G		non_coding_transcript_exon	Exon 2 of 6	ENSP00000264244.3	G3XA94
TIMMDC1	ENST00000854204.1		c.218A>G	p.Asp73Gly	missense	Exon 2 of 7	ENSP00000524263.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000399

AC:

AN:

250384

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000292

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461270

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726932

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33436

American (AMR)

AF:

0.0000225

AC:

AN:

44538

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26108

East Asian (EAS)

AF:

0.00

AC:

AN:

39690

South Asian (SAS)

AF:

0.00

AC:

AN:

86112

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111836

Other (OTH)

AF:

0.00

AC:

AN:

60370

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.24

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.44

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.13

Eigen

Benign

-0.16

Eigen_PC

Benign

0.011

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.64

M_CAP

Benign

0.0084

MetaRNN

Benign

0.19

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.0

PhyloP100

4.7

PrimateAI

Benign

0.42

PROVEAN

Uncertain

-3.8

REVEL

Benign

0.15

Sift

Uncertain

0.0020

Sift4G

Uncertain

0.0040

Polyphen

0.081

Vest4

0.28

MutPred

0.51

Gain of MoRF binding (P = 0.0348)

MVP

0.18

MPC

0.21

ClinPred

0.52

GERP RS

5.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.3

Varity_R

0.62

gMVP

0.79

Mutation Taster

=55/45

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.22

Details are displayed if max score is > 0.2

DS_AL_spliceai

0.22

Position offset: -23

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over