Genetic Variant NM_001308120.2:c.112G>A (chr14-44962533-G-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

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

The NM_001308120.2(TOGARAM1):c.112G>A(p.Val38Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,502 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

TOGARAM1
NM_001308120.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.443

Variant links:

Genes affected

TOGARAM1 (HGNC:19959): (TOG array regulator of axonemal microtubules 1) Predicted to enable microtubule binding activity. Predicted to be involved in organelle assembly and positive regulation of microtubule polymerization. Predicted to be located in ciliary basal body. Predicted to be active in cilium and microtubule cytoskeleton. Predicted to colocalize with microtubule. Implicated in Joubert syndrome. [provided by Alliance of Genome Resources, Apr 2022]

TOGARAM1 links:

KLHL28 (HGNC:19741): (kelch like family member 28)

KLHL28 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=0.031391263).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TOGARAM1	NM_001308120.2 link	c.112G>A	p.Val38Ile	missense_variant	Exon 1 of 20	ENST00000361462.7	NP_001295049.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TOGARAM1	ENST00000361462.7 link	c.112G>A	p.Val38Ile	missense_variant	Exon 1 of 20	1	NM_001308120.2	ENSP00000354917.2		G3XAE9

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1461502

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727074

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

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:

0.00000180

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

Nov 20, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.112G>A (p.V38I) alteration is located in exon 1 (coding exon 1) of the FAM179B gene. This alteration results from a G to A substitution at nucleotide position 112, causing the valine (V) at amino acid position 38 to be replaced by an isoleucine (I). 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

0.089

BayesDel_addAF

Benign

-0.28

BayesDel_noAF

Benign

-0.64

CADD

Benign

7.5

DANN

Benign

0.94

DEOGEN2

Benign

0.0072

T;T

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.017

LIST_S2

Benign

0.63

T;T

M_CAP

Benign

0.0025

MetaRNN

Benign

0.031

T;T

MetaSVM

Benign

-1.0

PrimateAI

Benign

0.31

PROVEAN

Benign

-0.19

N;N

REVEL

Benign

0.088

Sift

Benign

0.14

T;.

Sift4G

Benign

0.17

T;T

Polyphen

0.0

B;B

Vest4

0.054

MutPred

0.14

Loss of sheet (P = 0.1158);Loss of sheet (P = 0.1158);

MVP

0.040

MPC

0.13

ClinPred

0.084

GERP RS

-1.2

Varity_R

0.036

gMVP

0.11

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