Variant 3-68417403-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_213609.4(TAFA1):c.242G>A(p.Arg81Gln) variant causes a missense change. The variant allele was found at a frequency of 0.000039 in 1,613,422 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000037 ( 0 hom. )

Consequence

TAFA1
NM_213609.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.67

Variant links:

Genes affected

TAFA1 (HGNC:21587): (TAFA chemokine like family member 1) 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. [provided by RefSeq, Jul 2008]

TAFA1 links:

Genome browser will be placed here

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=0.14643228).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TAFA1	NM_213609.4 linkuse as main transcript	c.242G>A	p.Arg81Gln	missense_variant	3/5	ENST00000478136.6	NP_998774.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris
TAFA1	ENST00000478136.6 linkuse as main transcript	c.242G>A	p.Arg81Gln	missense_variant	3/5	1	NM_213609.4	ENSP00000418575	P1
TAFA1	ENST00000496687.1 linkuse as main transcript	c.242G>A	p.Arg81Gln	missense_variant	2/4	1		ENSP00000417496	P1
TAFA1	ENST00000491017.1 linkuse as main transcript	n.630G>A		non_coding_transcript_exon_variant	5/5	5

Frequencies

GnomAD3 genomes

AF:

0.0000658

AC:

AN:

151932

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000656

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000662

Gnomad MID

AF:

0.00637

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000765

AC:

AN:

248346

Hom.:

AF XY:

0.0000742

AC XY:

AN XY:

134700

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000654

Gnomad FIN exome

AF:

0.000372

Gnomad NFE exome

AF:

0.0000267

Gnomad OTH exome

AF:

0.000166

GnomAD4 exome

AF:

0.0000370

AC:

AN:

1461372

Hom.:

Cov.:

AF XY:

0.0000358

AC XY:

AN XY:

726972

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.000112

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000464

Gnomad4 FIN exome

AF:

0.000393

Gnomad4 NFE exome

AF:

0.0000180

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.0000592

AC:

AN:

152050

Hom.:

Cov.:

AF XY:

0.0000807

AC XY:

AN XY:

74310

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000662

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000868

Hom.:

Bravo

AF:

0.0000189

ExAC

AF:

0.0000414

AC:

EpiCase

AF:

0.0000546

EpiControl

AF:

0.00

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

Nov 30, 2022

The c.242G>A (p.R81Q) alteration is located in exon 3 (coding exon 2) of the FAM19A1 gene. This alteration results from a G to A substitution at nucleotide position 242, causing the arginine (R) at amino acid position 81 to be replaced by a glutamine (Q). 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

-0.29

BayesDel_noAF

Benign

-0.40

CADD

Uncertain

DANN

Benign

0.97

DEOGEN2

Benign

0.026

T;T;.

Eigen

Benign

0.077

Eigen_PC

Benign

0.12

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.95

.;D;D

M_CAP

Benign

0.0075

MetaRNN

Benign

0.15

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.81

L;L;.

MutationTaster

Benign

0.96

N;N

PrimateAI

Pathogenic

0.84

PROVEAN

Benign

0.51

N;N;.

REVEL

Benign

0.27

Sift

Benign

0.57

T;T;.

Sift4G

Benign

0.49

T;T;T

Polyphen

0.95

P;P;.

Vest4

0.31

MutPred

0.25

Loss of MoRF binding (P = 0.103);Loss of MoRF binding (P = 0.103);.;

MVP

0.082

MPC

0.61

ClinPred

0.097

GERP RS

4.7

Varity_R

0.10

gMVP

0.29

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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