Variant 1-112724112-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_182759.3(TAFA3):c.365G>A(p.Ser122Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,458,156 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 11/17 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

TAFA3
NM_182759.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.52

Variant links:

Genes affected

TAFA3 (HGNC:21590): (TAFA chemokine like family member 3) This gene is a member of the TAFA family which is composed of five highly homologous genes that encode small secreted proteins. These proteins contain conserved cysteine residues at fixed positions, and are distantly related to MIP-1alpha, a member of the CC-chemokine family. The TAFA proteins are predominantly expressed in specific regions of the brain, and are postulated to function as brain-specific chemokines or neurokines, that act as regulators of immune and nervous cells. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Nov 2011]

TAFA3 links:

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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=0.14806157).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
TAFA3	NM_182759.3 linkuse as main transcript	c.365G>A	p.Ser122Asn	missense_variant	5/6	ENST00000361886.4
TAFA3	NM_001004440.2 linkuse as main transcript	c.433G>A	p.Val145Met	missense_variant	5/6
TAFA3	NR_169586.1 linkuse as main transcript	n.856G>A		non_coding_transcript_exon_variant	5/6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TAFA3	ENST00000361886.4 linkuse as main transcript	c.365G>A	p.Ser122Asn	missense_variant	5/6	1	NM_182759.3	P1	Q7Z5A8-1
TAFA3	ENST00000369630.7 linkuse as main transcript	c.433G>A	p.Val145Met	missense_variant	4/5	1			Q7Z5A8-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000405

AC:

AN:

246874

Hom.:

AF XY:

0.00000749

AC XY:

AN XY:

133472

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000546

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:

0.00000137

AC:

AN:

1458156

Hom.:

Cov.:

AF XY:

0.00000276

AC XY:

AN XY:

725016

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000505

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

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

Feb 21, 2024

The c.433G>A (p.V145M) alteration is located in exon 4 (coding exon 3) of the FAM19A3 gene. This alteration results from a G to A substitution at nucleotide position 433, causing the valine (V) at amino acid position 145 to be replaced by a methionine (M). 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

0.14

BayesDel_addAF

Benign

-0.41

BayesDel_noAF

Benign

-0.54

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.032

Eigen

Uncertain

0.23

Eigen_PC

Uncertain

0.27

FATHMM_MKL

Uncertain

0.88

LIST_S2

Benign

0.80

M_CAP

Benign

0.0078

MetaRNN

Benign

0.15

MetaSVM

Benign

-0.96

MutationTaster

Benign

0.99

N;N

PROVEAN

Benign

-2.2

REVEL

Benign

0.10

Sift

Uncertain

0.028

Sift4G

Uncertain

0.056

Polyphen

0.0060

Vest4

0.33

MutPred

0.20

Loss of catalytic residue at S122 (P = 0.0402);

MVP

0.088

ClinPred

0.59

GERP RS

3.6

Varity_R

0.30

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