Variant 4-146820239-C-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_031956.4(TTC29):c.987G>C(p.Glu329Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000149 in 1,611,262 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000085 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000075 ( 0 hom. )

Consequence

TTC29
NM_031956.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.801

Variant links:

Genes affected

TTC29 (HGNC:29936): (tetratricopeptide repeat domain 29) Involved in cilium movement and cilium organization. Located in sperm flagellum. Implicated in spermatogenic failure 42. [provided by Alliance of Genome Resources, Apr 2022]

TTC29 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.037758082).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TTC29	NM_031956.4 linkuse as main transcript	c.987G>C	p.Glu329Asp	missense_variant	10/13	ENST00000325106.9	NP_114162.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TTC29	ENST00000325106.9 linkuse as main transcript	c.987G>C	p.Glu329Asp	missense_variant	10/13	1	NM_031956.4	ENSP00000316740	P4	Q8NA56-1
TTC29	ENST00000508306.5 linkuse as main transcript	c.*49G>C		3_prime_UTR_variant, NMD_transcript_variant	11/14	1		ENSP00000422648
TTC29	ENST00000513335.5 linkuse as main transcript	c.1065G>C	p.Glu355Asp	missense_variant	11/14	2		ENSP00000423505
TTC29	ENST00000504425.5 linkuse as main transcript	c.987G>C	p.Glu329Asp	missense_variant	10/13	5		ENSP00000425778	A1

Frequencies

GnomAD3 genomes

AF:

0.0000855

AC:

AN:

152130

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000290

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000163

AC:

AN:

246056

Hom.:

AF XY:

0.00000748

AC XY:

AN XY:

133672

show subpopulations

Gnomad AFR exome

AF:

0.000195

Gnomad AMR exome

AF:

0.0000292

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000754

AC:

AN:

1459132

Hom.:

Cov.:

AF XY:

0.00000276

AC XY:

AN XY:

725888

show subpopulations

Gnomad4 AFR exome

AF:

0.000239

Gnomad4 AMR exome

AF:

0.0000225

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:

0.00

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000855

AC:

AN:

152130

Hom.:

Cov.:

AF XY:

0.0000807

AC XY:

AN XY:

74314

show subpopulations

Gnomad4 AFR

AF:

0.000290

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000756

ExAC

AF:

0.00000828

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

Oct 13, 2023

The c.987G>C (p.E329D) alteration is located in exon 10 (coding exon 8) of the TTC29 gene. This alteration results from a G to C substitution at nucleotide position 987, causing the glutamic acid (E) at amino acid position 329 to be replaced by an aspartic acid (D). 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

0.11

BayesDel_addAF

Benign

-0.27

BayesDel_noAF

Benign

-0.35

CADD

Benign

4.1

DANN

Benign

0.73

DEOGEN2

Benign

0.13

.;T;.

Eigen

Benign

-1.5

Eigen_PC

Benign

-1.6

FATHMM_MKL

Benign

0.039

LIST_S2

Benign

0.51

T;T;T

M_CAP

Benign

0.046

MetaRNN

Benign

0.038

T;T;T

MetaSVM

Benign

-0.49

MutationAssessor

Benign

1.7

.;L;.

MutationTaster

Benign

1.0

N;N;N;N

PrimateAI

Benign

0.27

PROVEAN

Benign

-0.13

N;N;N

REVEL

Benign

0.12

Sift

Benign

0.59

T;T;T

Sift4G

Benign

0.15

T;T;T

Polyphen

0.37

B;B;B

Vest4

0.17

MutPred

0.35

Gain of MoRF binding (P = 0.1229);.;.;

MVP

0.42

MPC

0.015

ClinPred

0.012

GERP RS

-5.3

Varity_R

0.056

gMVP

0.10

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.

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