Genetic Variant NM_017514.5:c.42G>C (chrX-154460225-G-C) – ACMG Classification: Benign (-10 pts)

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6BP7BS2

The NM_017514.5(PLXNA3):c.42G>C(p.Val14Val) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000218 in 1,193,228 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 10 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.0000090 ( 0 hom., 0 hem., cov: 25)

Exomes 𝑓: 0.000023 ( 0 hom. 10 hem. )

Consequence

PLXNA3
NM_017514.5 synonymous

Scores

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 0.0630

Variant links:

Genes affected

PLXNA3 (HGNC:9101): (plexin A3) This gene encodes a member of the plexin class of proteins. The encoded protein is a class 3 semaphorin receptor, and may be involved in cytoskeletal remodeling and as well as apoptosis. Studies of a similar gene in zebrafish suggest that it is important for axon pathfinding in the developing nervous system. This gene may be associated with tumor progression. [provided by RefSeq, Aug 2013]

PLXNA3 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.84).

BP6

Variant X-154460225-G-C is Benign according to our data. Variant chrX-154460225-G-C is described in ClinVar as [Likely_benign]. Clinvar id is 3030538.Status of the report is no_assertion_criteria_provided, 0 stars.

BP7

Synonymous conserved (PhyloP=0.063 with no splicing effect.

BS2

High Hemizygotes in GnomAdExome4 at 10 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PLXNA3	NM_017514.5 link	c.42G>C	p.Val14Val	synonymous_variant	Exon 2 of 33	ENST00000369682.4	NP_059984.3	P51805
PLXNA3	XM_047442247.1 link	c.42G>C	p.Val14Val	synonymous_variant	Exon 2 of 22		XP_047298203.1
PLXNA3	XR_007068193.1 link	n.217G>C		non_coding_transcript_exon_variant	Exon 2 of 32
PLXNA3	XR_430556.4 link	n.217G>C		non_coding_transcript_exon_variant	Exon 2 of 19

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PLXNA3	ENST00000369682.4 link	c.42G>C	p.Val14Val	synonymous_variant	Exon 2 of 33	1	NM_017514.5	ENSP00000358696.3		P51805
PLXNA3	ENST00000495040.1 link	n.146-874G>C		intron_variant	Intron 1 of 1	5

Frequencies

GnomAD3 genomes

AF:

0.00000897

AC:

AN:

111498

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

33862

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000939

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000957

AC:

AN:

167182

Hom.:

AF XY:

0.000102

AC XY:

AN XY:

58820

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000496

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000579

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000482

GnomAD4 exome

AF:

0.0000231

AC:

AN:

1081730

Hom.:

Cov.:

AF XY:

0.0000284

AC XY:

AN XY:

351586

show subpopulations

Gnomad4 AFR exome

AF:

0.0000767

Gnomad4 AMR exome

AF:

0.000543

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000187

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000362

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000897

AC:

AN:

111498

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

33862

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000939

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000491

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

PLXNA3-related disorder

Benign:1

Sep 10, 2021

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.84

CADD

Benign

1.8

DANN

Benign

0.68

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

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