Variant 5-34864540-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_144725.4(TTC23L):c.640G>A(p.Asp214Asn) variant causes a missense change. The variant allele was found at a frequency of 0.00000186 in 1,613,472 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 (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

TTC23L
NM_144725.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.53

Variant links:

Genes affected

TTC23L (HGNC:26355): (tetratricopeptide repeat domain 23 like) Predicted to be located in cytoplasm; microtubule cytoskeleton; and midbody. [provided by Alliance of Genome Resources, Apr 2022]

TTC23L links:

LOC124900959 (HGNC:):

LOC124900959 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.17343453).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TTC23L	NM_144725.4 linkuse as main transcript	c.640G>A	p.Asp214Asn	missense_variant	6/11	ENST00000505624.6
LOC124900959	XR_007058729.1 linkuse as main transcript	n.581+4340C>T		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TTC23L	ENST00000505624.6 linkuse as main transcript	c.640G>A	p.Asp214Asn	missense_variant	6/11	1	NM_144725.4	A2	Q6PF05-1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152162

Hom.:

Cov.:

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:

0.000385

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000121

AC:

AN:

248928

Hom.:

AF XY:

0.0000148

AC XY:

AN XY:

135028

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000167

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461192

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726832

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:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152280

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74442

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000386

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

ExAC

AF:

0.0000248

AC:

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 submitter

clinical testing

Ambry Genetics

Sep 29, 2023

The c.640G>A (p.D214N) alteration is located in exon 6 (coding exon 5) of the TTC23L gene. This alteration results from a G to A substitution at nucleotide position 640, causing the aspartic acid (D) at amino acid position 214 to be replaced by an asparagine (N). 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

0.16

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.34

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.013

T;.;.;.

Eigen

Uncertain

0.58

Eigen_PC

Uncertain

0.56

FATHMM_MKL

Uncertain

0.93

LIST_S2

Benign

0.85

D;D;D;D

M_CAP

Benign

0.036

MetaRNN

Benign

0.17

T;T;T;T

MetaSVM

Uncertain

-0.10

MutationAssessor

Uncertain

2.0

M;.;M;.

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.50

PROVEAN

Benign

-1.5

N;.;.;.

REVEL

Benign

0.26

Sift

Benign

0.12

T;.;.;.

Sift4G

Pathogenic

0.0

D;.;D;.

Polyphen

1.0

D;.;D;.

Vest4

0.47

MutPred

0.34

Loss of sheet (P = 0.0142);Loss of sheet (P = 0.0142);Loss of sheet (P = 0.0142);Loss of sheet (P = 0.0142);

MVP

0.71

MPC

0.37

ClinPred

0.81

GERP RS

5.6

Varity_R

0.15

gMVP

0.34

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.080

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over