Genetic Variant TH:p.Ala492Ala (chr11-2164251-C-T) – ACMG Classification: Likely_benign (-5 pts)

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 2P and 7B. PM2BP4_StrongBP6_ModerateBP7

The NM_000360.4(TH):c.1476G>A(p.Ala492Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000196 in 1,482,218 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 Likely benign (★). Synonymous variant affecting the same amino acid position (i.e. A492A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

TH
NM_000360.4 synonymous

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:2

Conservation

PhyloP100: -1.22

Publications

1 publications found

Variant links:

Genes affected

TH (HGNC:11782): (tyrosine hydroxylase) The protein encoded by this gene is involved in the conversion of tyrosine to dopamine. It is the rate-limiting enzyme in the synthesis of catecholamines, hence plays a key role in the physiology of adrenergic neurons. Mutations in this gene have been associated with autosomal recessive Segawa syndrome. Alternatively spliced transcript variants encoding different isoforms have been noted for this gene. [provided by RefSeq, Jul 2008]

TH Gene-Disease associations (from GenCC):

TH-deficient dopa-responsive dystonia
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics, Orphanet
tyrosine hydroxylase deficiency
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen, Myriad Women’s Health

TH links:

ENSG00000295384 (HGNC:):

ENSG00000295384 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.69).

BP6

Variant 11-2164251-C-T is Benign according to our data. Variant chr11-2164251-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 698716.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=-1.22 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TH	NM_000360.4 link	c.1476G>A	p.Ala492Ala	synonymous_variant	Exon 13 of 13	ENST00000352909.8	NP_000351.2	P07101-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TH	ENST00000352909.8 link	c.1476G>A	p.Ala492Ala	synonymous_variant	Exon 13 of 13	1	NM_000360.4	ENSP00000325951.4		P07101-3

Frequencies

GnomAD3 genomes

AF:

0.0000789

AC:

AN:

152182

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000193

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000444

AC:

AN:

157674

AF XY:

0.0000588

show subpopulations

Gnomad AFR exome

AF:

0.000244

Gnomad AMR exome

AF:

0.0000539

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000392

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000128

AC:

AN:

1329918

Hom.:

Cov.:

AF XY:

0.0000138

AC XY:

AN XY:

650858

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

28046

American (AMR)

AF:

0.00

AC:

AN:

27564

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

19720

East Asian (EAS)

AF:

0.00

AC:

AN:

34948

South Asian (SAS)

AF:

0.0000450

AC:

AN:

66696

European-Finnish (FIN)

AF:

0.00

AC:

AN:

48208

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5066

European-Non Finnish (NFE)

AF:

0.0000124

AC:

AN:

1045162

Other (OTH)

AF:

0.0000183

AC:

AN:

54508

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

GnomAD4 genome

AF:

0.0000788

AC:

AN:

152300

Hom.:

Cov.:

AF XY:

0.0000806

AC XY:

AN XY:

74462

show subpopulations

African (AFR)

AF:

0.000192

AC:

AN:

41578

American (AMR)

AF:

0.000131

AC:

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5170

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68004

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000680

ClinVar

Significance: Likely benign

Submissions summary: Benign:2

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Autosomal recessive DOPA responsive dystonia

Benign:2

Nov 03, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Sep 16, 2020

Natera, Inc.

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.69

CADD

Benign

0.24

(source)

DANN

Benign

0.81

PhyloP100

-1.2

Mutation Taster

=98/2

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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chr11-2164251-C-T

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