Genetic Variant NM_153046.3:c.448G>C (chr14-103965360-G-C) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_153046.3(TDRD9):c.448G>C(p.Val150Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000286 in 1,399,412 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V150M) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000029 ( 0 hom. )

Consequence

TDRD9
NM_153046.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 9.86

Publications

0 publications found

Variant links:

Genes affected

TDRD9 (HGNC:20122): (tudor domain containing 9) Predicted to enable RNA binding activity. Involved in spermatogenesis. Located in cytoplasm and nucleus. Implicated in spermatogenic failure 30. [provided by Alliance of Genome Resources, Apr 2022]

TDRD9 Gene-Disease associations (from GenCC):

spermatogenic failure 30
Inheritance: AR Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
male infertility with azoospermia or oligozoospermia due to single gene mutation
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

TDRD9 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.861

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TDRD9	NM_153046.3 link	c.448G>C	p.Val150Leu	missense_variant	Exon 4 of 36	ENST00000409874.9	NP_694591.2	Q8NDG6-1Q86WA0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
TDRD9	ENST00000409874.9 link	c.448G>C	p.Val150Leu	missense_variant	Exon 4 of 36	5	NM_153046.3	ENSP00000387303.4	Q8NDG6-1
TDRD9	ENST00000496087.5 link	n.460G>C		non_coding_transcript_exon_variant	Exon 5 of 5	4
TDRD9	ENST00000554571.1 link	n.323G>C		non_coding_transcript_exon_variant	Exon 4 of 5	3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000286

AC:

AN:

1399412

Hom.:

Cov.:

AF XY:

0.00000435

AC XY:

AN XY:

690216

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31598

American (AMR)

AF:

0.00

AC:

AN:

35704

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25182

East Asian (EAS)

AF:

0.00

AC:

AN:

35736

South Asian (SAS)

AF:

0.00

AC:

AN:

79234

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49292

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5694

European-Non Finnish (NFE)

AF:

0.00000371

AC:

AN:

1078966

Other (OTH)

AF:

0.00

AC:

AN:

58006

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.463

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.71

BayesDel_addAF

Uncertain

0.096

BayesDel_noAF

Benign

-0.10

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.34

Eigen

Pathogenic

0.86

Eigen_PC

Pathogenic

0.77

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.91

M_CAP

Benign

0.065

MetaRNN

Pathogenic

0.86

MetaSVM

Benign

-0.74

MutationAssessor

Uncertain

2.8

PhyloP100

9.9

PrimateAI

Uncertain

0.69

PROVEAN

Uncertain

-2.6

REVEL

Uncertain

0.45

Sift

Uncertain

0.012

Sift4G

Uncertain

0.015

Polyphen

1.0

Vest4

0.78

MutPred

0.64

Gain of sheet (P = 0.0827);

MVP

0.65

MPC

0.79

ClinPred

0.98

GERP RS

4.7

Varity_R

0.36

gMVP

0.82

Mutation Taster

=57/43

polymorphism

(source)

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

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NM_153046.3:c.448G>C

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over