7-2647222-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The ENST00000258796.12(TTYH3):ā€‹c.374C>Gā€‹(p.Ala125Gly) variant causes a missense change. The variant allele was found at a frequency of 0.00000562 in 1,600,442 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.000013 ( 0 hom., cov: 33)
Exomes š‘“: 0.0000048 ( 0 hom. )

Consequence

TTYH3
ENST00000258796.12 missense

Scores

2
12
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.59
Variant links:
Genes affected
TTYH3 (HGNC:22222): (tweety family member 3) This gene encodes a member of the tweety family of proteins. Members of this family function as chloride anion channels. The encoded protein functions as a calcium(2+)-activated large conductance chloride(-) channel. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.814

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TTYH3NM_025250.3 linkuse as main transcriptc.374C>G p.Ala125Gly missense_variant 3/14 ENST00000258796.12 NP_079526.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TTYH3ENST00000258796.12 linkuse as main transcriptc.374C>G p.Ala125Gly missense_variant 3/141 NM_025250.3 ENSP00000258796 P3Q9C0H2-1
TTYH3ENST00000429448.2 linkuse as main transcriptc.374C>G p.Ala125Gly missense_variant 3/152 ENSP00000413757 A1Q9C0H2-4
TTYH3ENST00000407643.5 linkuse as main transcriptc.374C>G p.Ala125Gly missense_variant 3/135 ENSP00000385316 Q9C0H2-2
TTYH3ENST00000400376.2 linkuse as main transcript downstream_gene_variant 4 ENSP00000383227

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152208
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000460
AC:
1
AN:
217380
Hom.:
0
AF XY:
0.00000837
AC XY:
1
AN XY:
119460
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000104
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000483
AC:
7
AN:
1448234
Hom.:
0
Cov.:
33
AF XY:
0.00000417
AC XY:
3
AN XY:
719612
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000632
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152208
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74360
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000113
ExAC
AF:
0.00000839
AC:
1

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 GeneticsJan 04, 2024The c.374C>G (p.A125G) alteration is located in exon 3 (coding exon 3) of the TTYH3 gene. This alteration results from a C to G substitution at nucleotide position 374, causing the alanine (A) at amino acid position 125 to be replaced by a glycine (G). 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
Benign
0.34
BayesDel_addAF
Uncertain
0.088
D
BayesDel_noAF
Benign
-0.11
CADD
Pathogenic
28
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.48
T;.
Eigen
Uncertain
0.52
Eigen_PC
Uncertain
0.54
FATHMM_MKL
Uncertain
0.87
D
LIST_S2
Uncertain
0.97
D;D
M_CAP
Uncertain
0.21
D
MetaRNN
Pathogenic
0.81
D;D
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.9
M;M
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.79
T
PROVEAN
Uncertain
-3.6
D;D
REVEL
Benign
0.22
Sift
Uncertain
0.0020
D;D
Sift4G
Uncertain
0.013
D;D
Polyphen
0.58
P;.
Vest4
0.74
MutPred
0.83
Gain of sheet (P = 0.0221);Gain of sheet (P = 0.0221);
MVP
0.30
MPC
0.66
ClinPred
0.97
D
GERP RS
5.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.78
gMVP
0.74

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: rs747817938; hg19: chr7-2686856; API