chr1-156581962-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001105669.4(TTC24):​c.598G>A​(p.Ala200Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000094 in 1,383,544 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. A200S) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000094 ( 0 hom. )

Consequence

TTC24
NM_001105669.4 missense

Scores

1
6
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.11
Variant links:
Genes affected
TTC24 (HGNC:32348): (tetratricopeptide repeat domain 24)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.36302364).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TTC24NM_001105669.4 linkuse as main transcriptc.598G>A p.Ala200Thr missense_variant 2/11 ENST00000368236.8 NP_001099139.2 A2A3L6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TTC24ENST00000368236.8 linkuse as main transcriptc.598G>A p.Ala200Thr missense_variant 2/115 NM_001105669.4 ENSP00000357219.3 A2A3L6

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000769
AC:
1
AN:
130108
Hom.:
0
AF XY:
0.0000142
AC XY:
1
AN XY:
70292
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:
0.0000504
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000940
AC:
13
AN:
1383544
Hom.:
0
Cov.:
30
AF XY:
0.0000117
AC XY:
8
AN XY:
682058
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:
0.000169
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33

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 GeneticsJul 19, 2023The c.598G>A (p.A200T) alteration is located in exon 2 (coding exon 1) of the TTC24 gene. This alteration results from a G to A substitution at nucleotide position 598, causing the alanine (A) at amino acid position 200 to be replaced by a threonine (T). 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
0.13
BayesDel_addAF
Benign
-0.038
T
BayesDel_noAF
Benign
-0.15
CADD
Uncertain
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.0018
T;T
Eigen
Benign
0.16
Eigen_PC
Benign
0.20
FATHMM_MKL
Uncertain
0.87
D
LIST_S2
Benign
0.70
T;.
M_CAP
Uncertain
0.15
D
MetaRNN
Benign
0.36
T;T
MetaSVM
Uncertain
-0.27
T
MutationAssessor
Uncertain
2.3
M;M
MutationTaster
Benign
0.99
D;D
PrimateAI
Benign
0.46
T
PROVEAN
Benign
-1.7
N;N
REVEL
Uncertain
0.33
Sift
Benign
0.10
T;T
Sift4G
Pathogenic
0.0
D;D
Vest4
0.45
MutPred
0.36
Loss of disorder (P = 0.0995);Loss of disorder (P = 0.0995);
MVP
0.60
MPC
0.44
ClinPred
0.92
D
GERP RS
4.6
Varity_R
0.11
gMVP
0.23

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

LitVar

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

Other links and lift over

dbSNP: rs1248155742; hg19: chr1-156551754; API