rs148235227

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6

The ENST00000381178.5(TH):​c.134C>T​(p.Pro45Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000257 in 1,600,356 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. P45P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 30)
Exomes 𝑓: 0.00027 ( 0 hom. )

Consequence

TH
ENST00000381178.5 missense

Scores

1
3
15

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1

Conservation

PhyloP100: -0.969

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: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.047463566).
BP6
Variant 11-2170739-G-A is Benign according to our data. Variant chr11-2170739-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 567057.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
THNM_000360.4 linkc.91-868C>T intron_variant Intron 1 of 12 ENST00000352909.8 NP_000351.2 P07101-3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
THENST00000352909.8 linkc.91-868C>T intron_variant Intron 1 of 12 1 NM_000360.4 ENSP00000325951.4 P07101-3

Frequencies

GnomAD3 genomes
AF:
0.000113
AC:
17
AN:
150710
Hom.:
0
Cov.:
30
show subpopulations
Gnomad AFR
AF:
0.0000244
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.000237
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000152
AC:
34
AN:
223280
AF XY:
0.000180
show subpopulations
Gnomad AFR exome
AF:
0.0000739
Gnomad AMR exome
AF:
0.0000609
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000122
Gnomad NFE exome
AF:
0.000289
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000272
AC:
394
AN:
1449530
Hom.:
0
Cov.:
33
AF XY:
0.000271
AC XY:
195
AN XY:
720160
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33416
American (AMR)
AF:
0.0000458
AC:
2
AN:
43656
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25822
East Asian (EAS)
AF:
0.0000254
AC:
1
AN:
39386
South Asian (SAS)
AF:
0.0000119
AC:
1
AN:
84110
European-Finnish (FIN)
AF:
0.0000616
AC:
3
AN:
48664
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5504
European-Non Finnish (NFE)
AF:
0.000341
AC:
378
AN:
1108962
Other (OTH)
AF:
0.000133
AC:
8
AN:
60010
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.476
Heterozygous variant carriers
0
23
46
68
91
114
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
20
40
60
80
100
<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:
0.000113
AC:
17
AN:
150826
Hom.:
0
Cov.:
30
AF XY:
0.000136
AC XY:
10
AN XY:
73688
show subpopulations
African (AFR)
AF:
0.0000243
AC:
1
AN:
41068
American (AMR)
AF:
0.00
AC:
0
AN:
15184
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3460
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5036
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4746
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10448
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000237
AC:
16
AN:
67614
Other (OTH)
AF:
0.00
AC:
0
AN:
2078
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.496
Heterozygous variant carriers
0
1
3
4
6
7
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:
0.000277
Hom.:
0
Bravo
AF:
0.000140
ESP6500AA
AF:
0.000228
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000116
AC:
14

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:3Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Autosomal recessive DOPA responsive dystonia Uncertain:3
Jan 28, 2019
Centre for Mendelian Genomics, University Medical Centre Ljubljana
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was classified as: Uncertain significance. The available evidence on this variant's pathogenicity is insufficient or conflicting. The following ACMG criteria were applied in classifying this variant: No criteria apply. -

Nov 11, 2019
Natera, Inc.
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Aug 31, 2022
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 45 of the TH protein (p.Pro45Leu). This variant is present in population databases (rs148235227, gnomAD 0.03%). This variant has not been reported in the literature in individuals affected with TH-related conditions. ClinVar contains an entry for this variant (Variation ID: 567057). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt TH 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. -

Inborn genetic diseases Benign:1
Jan 26, 2022
Ambry Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.093
BayesDel_addAF
Benign
-0.26
T
BayesDel_noAF
Benign
-0.32
CADD
Benign
6.0
DANN
Benign
0.29
DEOGEN2
Benign
0.25
T;.
Eigen
Benign
-1.6
Eigen_PC
Benign
-1.7
FATHMM_MKL
Benign
0.012
N
LIST_S2
Benign
0.48
T;T
M_CAP
Uncertain
0.13
D
MetaRNN
Benign
0.047
T;T
MetaSVM
Pathogenic
0.99
D
MutationAssessor
Benign
0.34
N;.
PhyloP100
-0.97
PrimateAI
Uncertain
0.56
T
PROVEAN
Benign
-0.020
N;N
REVEL
Benign
0.24
Sift
Uncertain
0.0060
D;D
Sift4G
Benign
0.34
T;T
Polyphen
0.47
P;B
Vest4
0.12
MVP
0.57
MPC
0.046
ClinPred
0.029
T
GERP RS
-1.7
Varity_R
0.048
gMVP
0.15
Mutation Taster
=100/0
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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: rs148235227; hg19: chr11-2191969; COSMIC: COSV60768258; COSMIC: COSV60768258; API