17-3476169-T-C

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM5BP4_StrongBP6_Moderate

The NM_000049.4(ASPA):c.10T>C(p.Cys4Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000418 in 1,613,770 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. C4G?) has been classified as Pathogenic.

Frequency

Genomes: 𝑓 0.00030 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00043 ( 2 hom. )

Consequence

ASPA
NM_000049.4 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.394

Variant links:

Genes affected

ASPA (HGNC:756): (aspartoacylase) This gene encodes an enzyme that catalyzes the conversion of N-acetyl_L-aspartic acid (NAA) to aspartate and acetate. NAA is abundant in the brain where hydrolysis by aspartoacylase is thought to help maintain white matter. This protein is an NAA scavenger in other tissues. Mutations in this gene cause Canavan disease. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Jul 2008]

ASPA links:

SPATA22 (HGNC:30705): (spermatogenesis associated 22) Predicted to be involved in regulation of meiotic cell cycle. Predicted to act upstream of or within several processes, including fertilization; gamete generation; and meiosis I cell cycle process. Predicted to be located in chromosome. [provided by Alliance of Genome Resources, Apr 2022]

SPATA22 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM5

Other missense variant is known to change same aminoacid residue: Variant chr17-3476169-T-GG is described in ClinVar as [Pathogenic]. Clinvar id is 2854616.Status of the report is criteria_provided_single_submitter, 1 stars.

BP4

Computational evidence support a benign effect (MetaRNN=0.024567723).

BP6

Variant 17-3476169-T-C is Benign according to our data. Variant chr17-3476169-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 1561274.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr17-3476169-T-C is described in Lovd as [Likely_benign].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ASPA	NM_000049.4 linkuse as main transcript	c.10T>C	p.Cys4Arg	missense_variant	1/6	ENST00000263080.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ASPA	ENST00000263080.3 linkuse as main transcript	c.10T>C	p.Cys4Arg	missense_variant	1/6	1	NM_000049.4	P1

Frequencies

GnomAD3 genomes

AF:

0.000302

AC:

AN:

152236

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:

0.000676

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000330

AC:

AN:

251252

Hom.:

AF XY:

0.000317

AC XY:

AN XY:

135812

show subpopulations

Gnomad AFR exome

AF:

0.000123

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000233

Gnomad NFE exome

AF:

0.000651

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000430

AC:

628

AN:

1461416

Hom.:

Cov.:

AF XY:

0.000425

AC XY:

309

AN XY:

727044

show subpopulations

Gnomad4 AFR exome

AF:

0.000119

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:

0.000207

Gnomad4 NFE exome

AF:

0.000539

Gnomad4 OTH exome

AF:

0.000215

GnomAD4 genome

AF:

0.000302

AC:

AN:

152354

Hom.:

Cov.:

AF XY:

0.000188

AC XY:

AN XY:

74508

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:

0.000676

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000626

Hom.:

Bravo

AF:

0.000408

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000465

AC:

ExAC

AF:

0.000395

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000273

EpiControl

AF:

0.000356

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Spongy degeneration of central nervous system

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Invitae

Jan 24, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.080

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.15

Cadd

Benign

Dann

Benign

0.62

DEOGEN2

Benign

0.0090

T;T;T

Eigen

Benign

-0.89

Eigen_PC

Benign

-0.79

FATHMM_MKL

Benign

0.30

LIST_S2

Benign

0.27

T;.;T

M_CAP

Benign

0.062

MetaRNN

Benign

0.025

T;T;T

MetaSVM

Benign

-0.32

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.38

Sift4G

Benign

0.14

T;T;T

Polyphen

0.0

.;B;B

Vest4

0.19, 0.18

MVP

0.46

MPC

0.12

ClinPred

0.014

GERP RS

0.37

Varity_R

0.21

gMVP

0.83

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