Variant 12-52014189-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_181711.4(TAMALIN):c.670C>T(p.Arg224Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000187 in 1,600,810 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

TAMALIN
NM_181711.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.311

Variant links:

Genes affected

TAMALIN (HGNC:18707): (trafficking regulator and scaffold protein tamalin) This gene encodes a protein that functions as a molecular scaffold, linking receptors, including group 1 metabotropic glutamate receptors, to neuronal proteins. The encoded protein contains conserved domains, including a leucine zipper sequence, PDZ domain and a C-terminal PDZ-binding motif. Alternately spliced transcript variants have been observed for this gene.[provided by RefSeq, Dec 2012]

TAMALIN links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
TAMALIN	NM_181711.4 linkuse as main transcript	c.670C>T	p.Arg224Trp	missense_variant	7/8	ENST00000293662.9
TAMALIN	NM_001271856.2 linkuse as main transcript	c.241C>T	p.Arg81Trp	missense_variant	6/7
TAMALIN	XM_005268691.4 linkuse as main transcript	c.280C>T	p.Arg94Trp	missense_variant	7/8
TAMALIN	XM_047428439.1 linkuse as main transcript	c.280C>T	p.Arg94Trp	missense_variant	6/7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
TAMALIN	ENST00000293662.9 linkuse as main transcript	c.670C>T	p.Arg224Trp	missense_variant	7/8	1	NM_181711.4	P1	Q7Z6J2-1

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152060

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000138

AC:

AN:

1448750

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

719162

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.05e-7

Gnomad4 OTH exome

AF:

0.0000167

GnomAD4 genome

AF:

0.00000658

AC:

AN:

152060

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74270

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

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

Apr 27, 2023

The c.670C>T (p.R224W) alteration is located in exon 7 (coding exon 7) of the GRASP gene. This alteration results from a C to T substitution at nucleotide position 670, causing the arginine (R) at amino acid position 224 to be replaced by a tryptophan (W). 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

Pathogenic

0.91

BayesDel_addAF

Uncertain

0.13

BayesDel_noAF

Uncertain

-0.050

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.76

D;.;T

Eigen

Uncertain

0.48

Eigen_PC

Uncertain

0.42

FATHMM_MKL

Uncertain

0.93

LIST_S2

Uncertain

0.96

D;D;D

M_CAP

Uncertain

0.11

MetaRNN

Uncertain

0.69

D;D;D

MetaSVM

Benign

-0.33

MutationAssessor

Uncertain

2.7

M;.;.

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Pathogenic

0.85

PROVEAN

Uncertain

-4.4

D;D;D

REVEL

Uncertain

0.42

Sift

Pathogenic

0.0

D;D;D

Sift4G

Pathogenic

0.0010

D;D;D

Polyphen

1.0

D;D;.

Vest4

0.59

MutPred

0.56

Gain of catalytic residue at Q221 (P = 0.0211);.;.;

MVP

0.79

MPC

2.8

ClinPred

1.0

GERP RS

4.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.60

gMVP

0.80

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.21

Details are displayed if max score is > 0.2

DS_DL_spliceai

0.21

Position offset: 12

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