Genetic Variant TIMM44:p.Ala424Ala (chr19-7927274-C-T) – ACMG Classification: Benign (-17 pts)

Variant summary

Our verdict is Benign. The variant received -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The NM_006351.4(TIMM44):c.1272G>A(p.Ala424Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00061 in 1,611,880 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00064 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00061 ( 1 hom. )

Consequence

TIMM44
NM_006351.4 synonymous

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -3.33

Publications

1 publications found

Variant links:

Genes affected

TIMM44 (HGNC:17316): (translocase of inner mitochondrial membrane 44) This gene encodes a peripheral membrane protein associated with the mitochondrial inner membrane translocase, which functions in the import of proteins across the mitochondrial inner membrane and into the mitochondrial matrix. The encoded protein mediates binding of mitochondrial heat shock protein 70 to the translocase of inner mitochondrial membrane 23 (TIM23) complex. Expression of this gene is upregulated in kidney in a mouse model of diabetes. A mutation in this gene is associated with familial oncocytic thyroid carcinoma. [provided by RefSeq, Jul 2016]

TIMM44 Gene-Disease associations (from GenCC):

thyroid cancer
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

TIMM44 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -17 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.51).

BP6

Variant 19-7927274-C-T is Benign according to our data. Variant chr19-7927274-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 215250.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-3.33 with no splicing effect.

BS2

High AC in GnomAd4 at 98 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006351.4. 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
	TIMM44	NM_006351.4	MANE Select	c.1272G>A	p.Ala424Ala	synonymous	Exon 13 of 13	NP_006342.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
TIMM44	ENST00000270538.8	TSL:1 MANE Select	c.1272G>A	p.Ala424Ala	synonymous	Exon 13 of 13	ENSP00000270538.2	O43615
TIMM44	ENST00000923643.1		c.1260G>A	p.Ala420Ala	synonymous	Exon 13 of 13	ENSP00000593702.1
TIMM44	ENST00000870121.1		c.1242G>A	p.Ala414Ala	synonymous	Exon 13 of 13	ENSP00000540180.1

Frequencies

GnomAD3 genomes

AF:

0.000644

AC:

AN:

152122

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000604

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000524

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000943

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000941

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000525

AC:

130

AN:

247688

AF XY:

0.000535

show subpopulations

Gnomad AFR exome

AF:

0.000618

Gnomad AMR exome

AF:

0.000318

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000237

Gnomad NFE exome

AF:

0.000894

Gnomad OTH exome

AF:

0.000329

GnomAD4 exome

AF:

0.000607

AC:

886

AN:

1459640

Hom.:

Cov.:

AF XY:

0.000642

AC XY:

466

AN XY:

726196

show subpopulations

African (AFR)

AF:

0.000747

AC:

AN:

33454

American (AMR)

AF:

0.000157

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.0000812

AC:

AN:

86210

European-Finnish (FIN)

AF:

0.000268

AC:

AN:

52172

Middle Eastern (MID)

AF:

0.000199

AC:

AN:

5032

European-Non Finnish (NFE)

AF:

0.000718

AC:

798

AN:

1111944

Other (OTH)

AF:

0.000564

AC:

AN:

60280

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

102

153

204

255

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

120

150

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000644

AC:

AN:

152240

Hom.:

Cov.:

AF XY:

0.000564

AC XY:

AN XY:

74440

show subpopulations

African (AFR)

AF:

0.000602

AC:

AN:

41536

American (AMR)

AF:

0.000523

AC:

AN:

15296

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5174

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.0000943

AC:

AN:

10610

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000941

AC:

AN:

68014

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.499

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000568

Hom.:

Bravo

AF:

0.000661

Asia WGS

AF:

0.000577

AC:

AN:

3478

EpiCase

AF:

0.000654

EpiControl

AF:

0.000948

ClinVar

ClinVar submissions

Significance:Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (2)

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.51

CADD

Benign

7.8

(source)

DANN

Benign

0.94

PhyloP100

-3.3

Mutation Taster

=100/0

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over