chr11-18029548-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_004179.3(TPH1):​c.434G>A​(p.Arg145Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000347 in 1,613,096 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000035 ( 0 hom. )

Consequence

TPH1
NM_004179.3 missense

Scores

17
1
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.65
Variant links:
Genes affected
TPH1 (HGNC:12008): (tryptophan hydroxylase 1) This gene encodes a member of the aromatic amino acid hydroxylase family. The encoded protein catalyzes the first and rate limiting step in the biosynthesis of serotonin, an important hormone and neurotransmitter. Mutations in this gene have been associated with an elevated risk for a variety of diseases and disorders, including schizophrenia, somatic anxiety, anger-related traits, bipolar disorder, suicidal behavior, addictions, and others.[provided by RefSeq, Apr 2009]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.987

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TPH1NM_004179.3 linkuse as main transcriptc.434G>A p.Arg145Gln missense_variant 5/11 ENST00000682019.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TPH1ENST00000682019.1 linkuse as main transcriptc.434G>A p.Arg145Gln missense_variant 5/11 NM_004179.3 P1P17752-1
TPH1ENST00000250018.6 linkuse as main transcriptc.434G>A p.Arg145Gln missense_variant 4/101 P1P17752-1
TPH1ENST00000417164.5 linkuse as main transcriptc.434G>A p.Arg145Gln missense_variant, NMD_transcript_variant 4/91
TPH1ENST00000528338.1 linkuse as main transcriptc.464G>A p.Arg155Gln missense_variant 5/53

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152086
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.000208
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000439
AC:
11
AN:
250718
Hom.:
0
AF XY:
0.0000442
AC XY:
6
AN XY:
135716
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000272
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000441
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000349
AC:
51
AN:
1460892
Hom.:
0
Cov.:
31
AF XY:
0.0000289
AC XY:
21
AN XY:
726736
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000757
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000153
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
152204
Hom.:
0
Cov.:
32
AF XY:
0.0000403
AC XY:
3
AN XY:
74412
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000192
Gnomad4 SAS
AF:
0.000208
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000565
Hom.:
0
Bravo
AF:
0.0000227
ExAC
AF:
0.0000412
AC:
5
Asia WGS
AF:
0.000289
AC:
1
AN:
3474

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsSep 13, 2023The c.434G>A (p.R145Q) alteration is located in exon 4 (coding exon 4) of the TPH1 gene. This alteration results from a G to A substitution at nucleotide position 434, causing the arginine (R) at amino acid position 145 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.97
BayesDel_addAF
Pathogenic
0.35
D
BayesDel_noAF
Pathogenic
0.56
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.81
D;.
Eigen
Pathogenic
1.1
Eigen_PC
Pathogenic
1.0
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
1.0
D;D
M_CAP
Pathogenic
0.69
D
MetaRNN
Pathogenic
0.99
D;D
MetaSVM
Pathogenic
0.95
D
MutationAssessor
Pathogenic
3.8
H;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.83
D
PROVEAN
Uncertain
-3.8
D;D
REVEL
Pathogenic
0.95
Sift
Pathogenic
0.0
D;D
Sift4G
Pathogenic
0.0010
D;.
Polyphen
1.0
D;.
Vest4
0.97
MutPred
0.94
Loss of MoRF binding (P = 0.0414);.;
MVP
0.97
MPC
0.80
ClinPred
1.0
D
GERP RS
5.9
Varity_R
0.90
gMVP
0.90

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs754612963; hg19: chr11-18051095; COSMIC: COSV51457439; API