Variant 3-180604857-G-C details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_133462.4(TTC14):c.707G>C(p.Ser236Thr) variant causes a missense change. The variant allele was found at a frequency of 0.00000344 in 1,453,590 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. S236N) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

TTC14
NM_133462.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.89

Variant links:

Genes affected

TTC14 (HGNC:24697): (tetratricopeptide repeat domain 14) Predicted to enable nucleic acid binding activity. [provided by Alliance of Genome Resources, Apr 2022]

TTC14 links:

CCDC39 (HGNC:25244): (coiled-coil domain 39 molecular ruler complex subunit) The protein encoded by this gene is involved in the motility of cilia and flagella. The encoded protein is essential for the assembly of dynein regulatory and inner dynein arm complexes, which regulate ciliary beat. Defects in this gene are a cause of primary ciliary dyskinesia type 14 (CILD14). [provided by RefSeq, Jul 2011]

CCDC39 links:

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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=0.40070283).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TTC14	NM_133462.4 linkuse as main transcript	c.707G>C	p.Ser236Thr	missense_variant	6/12	ENST00000296015.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TTC14	ENST00000296015.9 linkuse as main transcript	c.707G>C	p.Ser236Thr	missense_variant	6/12	1	NM_133462.4	P1	Q96N46-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000344

AC:

AN:

1453590

Hom.:

Cov.:

AF XY:

0.00000415

AC XY:

AN XY:

723132

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:

0.00000451

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

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

Oct 25, 2022

The c.707G>C (p.S236T) alteration is located in exon 6 (coding exon 6) of the TTC14 gene. This alteration results from a G to C substitution at nucleotide position 707, causing the serine (S) at amino acid position 236 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

0.18

BayesDel_addAF

Benign

-0.016

BayesDel_noAF

Benign

-0.26

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.049

T;.;.;.

Eigen

Pathogenic

0.69

Eigen_PC

Pathogenic

0.69

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.77

T;.;T;T

M_CAP

Benign

0.018

MetaRNN

Benign

0.40

T;T;T;T

MetaSVM

Benign

-0.62

MutationAssessor

Uncertain

2.3

M;M;M;.

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Uncertain

0.50

PROVEAN

Benign

-1.1

N;N;N;N

REVEL

Benign

0.18

Sift

Benign

0.049

D;T;T;T

Sift4G

Benign

0.088

T;T;T;D

Polyphen

1.0

D;.;D;.

Vest4

0.50

MutPred

0.38

Gain of glycosylation at S236 (P = 0.0012);Gain of glycosylation at S236 (P = 0.0012);Gain of glycosylation at S236 (P = 0.0012);.;

MVP

0.69

MPC

0.43

ClinPred

0.88

GERP RS

5.9

Varity_R

0.34

gMVP

0.67

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

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over