3-126988696-G-A

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_032242.4(PLXNA1):c.103G>A(p.Gly35Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000146 in 1,574,580 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G35E) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 34)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

PLXNA1
NM_032242.4 missense

Scores

Clinical Significance

Uncertain significance no assertion criteria provided U:1

Conservation

PhyloP100: 1.15

Publications

2 publications found

Variant links:

Genes affected

PLXNA1 (HGNC:9099): (plexin A1) Predicted to enable semaphorin receptor activity. Predicted to be involved in several processes, including generation of neurons; regulation of GTPase activity; and regulation of cell shape. Predicted to act upstream of or within dichotomous subdivision of terminal units involved in salivary gland branching; neuron projection morphogenesis; and regulation of smooth muscle cell migration. Located in cytosol and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

PLXNA1 Gene-Disease associations (from GenCC):

Dworschak-Punetha neurodevelopmental syndrome
Inheritance: AR Classification: STRONG, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
complex neurodevelopmental disorder
Inheritance: AD Classification: LIMITED Submitted by: G2P

PLXNA1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.07529658).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PLXNA1	NM_032242.4 link	c.103G>A	p.Gly35Arg	missense_variant	Exon 2 of 32	ENST00000393409.3	NP_115618.3	Q9UIW2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PLXNA1	ENST00000393409.3 link	c.103G>A	p.Gly35Arg	missense_variant	Exon 2 of 32	1	NM_032242.4	ENSP00000377061.2		Q9UIW2
PLXNA1	ENST00000684469.1 link	c.103G>A	p.Gly35Arg	missense_variant	Exon 2 of 2			ENSP00000507976.1		A0A804HKL4

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152178

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000231

AC:

AN:

216668

AF XY:

0.0000259

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000938

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000103

Gnomad OTH exome

AF:

0.000188

GnomAD4 exome

AF:

0.0000120

AC:

AN:

1422402

Hom.:

Cov.:

AF XY:

0.0000157

AC XY:

AN XY:

702172

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32920

American (AMR)

AF:

0.0000946

AC:

AN:

42296

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

23480

East Asian (EAS)

AF:

0.00

AC:

AN:

39320

South Asian (SAS)

AF:

0.00

AC:

AN:

78902

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50656

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5592

European-Non Finnish (NFE)

AF:

0.0000119

AC:

AN:

1090546

Other (OTH)

AF:

0.00

AC:

AN:

58690

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.493

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000394

AC:

AN:

152178

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74338

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41440

American (AMR)

AF:

0.000196

AC:

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5190

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68018

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.517

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000142

Hom.:

Bravo

AF:

0.0000227

ExAC

AF:

0.00000826

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

PLXNA1-related disorder

Uncertain:1

May 08, 2024

PreventionGenetics, part of Exact Sciences

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

The PLXNA1 c.103G>A variant is predicted to result in the amino acid substitution p.Gly35Arg. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.012% of alleles in individuals of Latino descent in gnomAD. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.47

BayesDel_noAF

Benign

-0.68

CADD

Benign

6.6

(source)

DANN

Benign

0.57

DEOGEN2

Benign

0.21

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.64

LIST_S2

Benign

0.56

M_CAP

Benign

0.0049

MetaRNN

Benign

0.075

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.4

PhyloP100

1.1

PrimateAI

Benign

0.40

PROVEAN

Benign

-1.3

REVEL

Benign

0.044

Sift

Benign

0.12

Sift4G

Benign

0.22

Polyphen

0.0050

Vest4

0.12

MutPred

0.35

Gain of methylation at G35 (P = 0.0585);

MVP

0.13

MPC

0.57

ClinPred

0.050

GERP RS

-3.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.0

Varity_R

0.042

gMVP

0.60

Mutation Taster

=83/17

polymorphism

(source)

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

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3-126988696-G-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over