chrX-102749562-T-A

Position:

chrX-102749562-T-A

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001142524.2(GPRASP3):c.567T>A(p.Asn189Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000174 in 1,209,621 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 62 hemizygotes in GnomAD. 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N189H) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00013 ( 0 hom., 2 hem., cov: 23)

Exomes 𝑓: 0.00018 ( 0 hom. 60 hem. )

Consequence

GPRASP3
NM_001142524.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.181

Variant links:

Genes affected

GPRASP3 (HGNC:29353): (G protein-coupled receptor associated sorting protein family member 3) This gene is a member of a gene family which encodes proteins with a basic helix-loop-helix domain. Other members of this gene family encode proteins which function as transcription factors, either enhancing or inhibiting transcription depending on the activity of other DNA binding proteins. The coding region of this gene is located entirely within the terminal exon. The encoded protein may be involved in the survival of neurons (PMID: 15034937). Multiple alternatively spliced variants, encoding the same protein, have been identified. [provided by RefSeq, Sep 2011]

GPRASP3 links:

ARMCX5-GPRASP2 (HGNC:42000): (ARMCX5-GPRASP2 readthrough) This locus represents naturally occurring readthrough transcription among the adjacent armadillo repeat containing, X-linked 5 (ARMCX5), G protein-coupled receptor associated sorting proteins 1 and 2 (GPRASP1 and GPRASP2), basic helix-loop-helix family member b9 (BHLHB9), and long intergenic non-protein coding RNA 630 (LINC00630) genes on chromosome X. Transcripts may make use of multiple alternative promoters and polyadenylation signals in this region. Readthrough transcripts may produce proteins identical to the proteins encoded by GPRASP2 or BHLHB9. [provided by RefSeq, Apr 2017]

ARMCX5-GPRASP2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.10858464).

BS2

High Hemizygotes in GnomAd4 at 2 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GPRASP3	NM_001142524.2 linkuse as main transcript	c.567T>A	p.Asn189Lys	missense_variant	4/4	ENST00000457056.6
ARMCX5-GPRASP2	NR_146584.3 linkuse as main transcript	n.1218+28471T>A		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GPRASP3	ENST00000457056.6 linkuse as main transcript	c.567T>A	p.Asn189Lys	missense_variant	4/4	4	NM_001142524.2	P1
ARMCX5-GPRASP2	ENST00000652409.1 linkuse as main transcript	c.567T>A	p.Asn189Lys	missense_variant	8/8			P1

Frequencies

GnomAD3 genomes

AF:

0.000135

AC:

AN:

111383

Hom.:

Cov.:

AF XY:

0.0000596

AC XY:

AN XY:

33583

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000569

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:

0.000170

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000136

AC:

AN:

183498

Hom.:

AF XY:

0.0000883

AC XY:

AN XY:

67938

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000625

Gnomad NFE exome

AF:

0.000281

Gnomad OTH exome

AF:

0.000221

GnomAD4 exome

AF:

0.000178

AC:

195

AN:

1098238

Hom.:

Cov.:

AF XY:

0.000165

AC XY:

AN XY:

363592

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000852

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000247

Gnomad4 NFE exome

AF:

0.000215

Gnomad4 OTH exome

AF:

0.000195

GnomAD4 genome

AF:

0.000135

AC:

AN:

111383

Hom.:

Cov.:

AF XY:

0.0000596

AC XY:

AN XY:

33583

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000569

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000170

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000102

Hom.:

Bravo

AF:

0.0000793

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000446

AC:

ExAC

AF:

0.000198

AC:

EpiCase

AF:

0.000273

EpiControl

AF:

0.000178

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

Oct 06, 2021

The c.567T>A (p.N189K) alteration is located in exon 4 (coding exon 1) of the BHLHB9 gene. This alteration results from a T to A substitution at nucleotide position 567, causing the asparagine (N) at amino acid position 189 to be replaced by a lysine (K). 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

0.23

BayesDel_addAF

Benign

-0.65

BayesDel_noAF

Benign

-0.87

CADD

Benign

DANN

Benign

0.95

DEOGEN2

Benign

0.034

T;T;T;T;T

FATHMM_MKL

Benign

0.47

LIST_S2

Benign

0.66

.;.;.;T;.

M_CAP

Benign

0.0039

MetaRNN

Benign

0.11

T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.3

M;M;M;M;M

MutationTaster

Benign

0.99

N;N;N;N;N

PrimateAI

Benign

0.41

PROVEAN

Benign

-2.4

N;N;N;N;N

REVEL

Benign

0.029

Sift

Uncertain

0.012

D;D;D;D;D

Sift4G

Uncertain

0.017

D;D;D;D;D

Polyphen

0.44

B;B;B;B;B

Vest4

0.19

MutPred

0.36

Gain of catalytic residue at N189 (P = 0.0075);Gain of catalytic residue at N189 (P = 0.0075);Gain of catalytic residue at N189 (P = 0.0075);Gain of catalytic residue at N189 (P = 0.0075);Gain of catalytic residue at N189 (P = 0.0075);

MVP

0.56

MPC

0.16

ClinPred

0.041

GERP RS

0.78

Varity_R

0.19

gMVP

0.18

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