rs377729019

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM1BP4

The NM_000360.4(TH):​c.653C>T​(p.Pro218Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000269 in 1,561,416 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 (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P218S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

TH
NM_000360.4 missense

Scores

5
7
7

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: 2.89

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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM1
In a hotspot region, there are 6 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 9 uncertain in NM_000360.4
BP4
Computational evidence support a benign effect (MetaRNN=0.42371455).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
THNM_000360.4 linkc.653C>T p.Pro218Leu missense_variant Exon 6 of 13 ENST00000352909.8 NP_000351.2 P07101-3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
THENST00000352909.8 linkc.653C>T p.Pro218Leu missense_variant Exon 6 of 13 1 NM_000360.4 ENSP00000325951.4 P07101-3

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152176
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000385
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000414
AC:
7
AN:
168990
AF XY:
0.0000334
show subpopulations
Gnomad AFR exome
AF:
0.000305
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000231
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000148
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000248
AC:
35
AN:
1409122
Hom.:
0
Cov.:
33
AF XY:
0.0000287
AC XY:
20
AN XY:
695938
show subpopulations
African (AFR)
AF:
0.000124
AC:
4
AN:
32382
American (AMR)
AF:
0.0000538
AC:
2
AN:
37186
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25240
East Asian (EAS)
AF:
0.0000808
AC:
3
AN:
37108
South Asian (SAS)
AF:
0.00
AC:
0
AN:
80082
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
48384
Middle Eastern (MID)
AF:
0.000877
AC:
5
AN:
5704
European-Non Finnish (NFE)
AF:
0.0000157
AC:
17
AN:
1084654
Other (OTH)
AF:
0.0000685
AC:
4
AN:
58382
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.451
Heterozygous variant carriers
0
2
4
7
9
11
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000460
AC:
7
AN:
152294
Hom.:
0
Cov.:
33
AF XY:
0.0000537
AC XY:
4
AN XY:
74466
show subpopulations
African (AFR)
AF:
0.0000481
AC:
2
AN:
41560
American (AMR)
AF:
0.00
AC:
0
AN:
15308
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.000386
AC:
2
AN:
5184
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
68006
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.432
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000565
Hom.:
0
Bravo
AF:
0.0000718
ESP6500AA
AF:
0.000463
AC:
2
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000436
AC:
5

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Autosomal recessive DOPA responsive dystonia Uncertain:3
Mar 11, 2020
Natera, Inc.
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Dec 10, 2021
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces proline, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 249 of the TH protein (p.Pro249Leu). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This missense change has been observed in individual(s) with generalized dystonia (PMID: 29801903). ClinVar contains an entry for this variant (Variation ID: 374731). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Deleterious"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C15". The leucine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Feb 03, 2022
Fulgent Genetics, Fulgent Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not specified Uncertain:1
Sep 23, 2016
Athena Diagnostics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Uncertain:1
Nov 01, 2016
CeGaT Center for Human Genetics Tuebingen
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.087
BayesDel_addAF
Pathogenic
0.17
D
BayesDel_noAF
Uncertain
0.0
CADD
Benign
23
DANN
Uncertain
0.99
DEOGEN2
Pathogenic
0.97
D;.;.;.
Eigen
Benign
-0.068
Eigen_PC
Benign
-0.18
FATHMM_MKL
Benign
0.58
D
LIST_S2
Uncertain
0.97
D;D;D;D
M_CAP
Pathogenic
0.96
D
MetaRNN
Benign
0.42
T;T;T;T
MetaSVM
Pathogenic
1.0
D
MutationAssessor
Uncertain
2.6
M;.;.;.
PhyloP100
2.9
PrimateAI
Benign
0.43
T
PROVEAN
Pathogenic
-7.3
D;D;.;D
REVEL
Uncertain
0.54
Sift
Uncertain
0.015
D;D;.;D
Sift4G
Uncertain
0.016
D;D;D;D
Polyphen
0.97
D;D;.;P
Vest4
0.28
MVP
0.93
MPC
0.16
ClinPred
0.31
T
GERP RS
2.5
Varity_R
0.63
gMVP
0.66
Mutation Taster
=56/44
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs377729019; hg19: chr11-2188707; API