X-74739448-G-A

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP3BS2

The NM_001008537.3(NEXMIF):c.4508C>T(p.Pro1503Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000209 in 1,197,802 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 8 hemizygotes in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. P1503P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000018 ( 0 hom., 2 hem., cov: 21)

Exomes 𝑓: 0.000021 ( 0 hom. 6 hem. )

Consequence

NEXMIF
NM_001008537.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.12

Variant links:

Genes affected

NEXMIF (HGNC:29433): (neurite extension and migration factor) An inversion on the X chromosome which disrupts this gene and a G-protein coupled purinergic receptor gene located in the pseudoautosomal region of the X chromosome has been linked to X linked cognitive disability.[provided by RefSeq, Mar 2009]

NEXMIF links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.786

BS2

High Hemizygotes in GnomAd at 2 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NEXMIF	NM_001008537.3 linkuse as main transcript	c.4508C>T	p.Pro1503Leu	missense_variant	4/4	ENST00000055682.12

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
NEXMIF	ENST00000055682.12 linkuse as main transcript	c.4508C>T	p.Pro1503Leu	missense_variant	4/4	1	NM_001008537.3	P1
NEXMIF	ENST00000616200.2 linkuse as main transcript	c.4508C>T	p.Pro1503Leu	missense_variant	4/5	1		P1
NEXMIF	ENST00000642681.2 linkuse as main transcript	c.*648C>T		3_prime_UTR_variant	3/3

Frequencies

GnomAD3 genomes

AF:

0.0000182

AC:

AN:

109860

Hom.:

Cov.:

AF XY:

0.0000622

AC XY:

AN XY:

32178

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:

0.0000380

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000211

AC:

AN:

1087942

Hom.:

Cov.:

AF XY:

0.0000169

AC XY:

AN XY:

355324

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:

0.0000251

Gnomad4 OTH exome

AF:

0.0000437

GnomAD4 genome

AF:

0.0000182

AC:

AN:

109860

Hom.:

Cov.:

AF XY:

0.0000622

AC XY:

AN XY:

32178

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:

0.0000380

Gnomad4 OTH

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Nov 11, 2023

This sequence change replaces proline, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 1503 of the NEXMIF protein (p.Pro1503Leu). This variant is present in population databases (no rsID available, gnomAD 0.01%), including at least one homozygous and/or hemizygous individual. This variant has not been reported in the literature in individuals affected with NEXMIF-related conditions. An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.23

BayesDel_addAF

Pathogenic

0.20

BayesDel_noAF

Uncertain

0.050

Cadd

Uncertain

Dann

Uncertain

1.0

DEOGEN2

Benign

0.086

T;T

FATHMM_MKL

Uncertain

0.94

M_CAP

Pathogenic

0.49

MetaRNN

Pathogenic

0.79

D;D

MetaSVM

Benign

-0.85

MutationTaster

Benign

1.0

D;D

PrimateAI

Uncertain

0.63

PROVEAN

Benign

0.020

N;.

REVEL

Benign

0.25

Sift

Pathogenic

0.0

D;.

Sift4G

Uncertain

0.017

D;D

Polyphen

1.0

D;D

Vest4

0.64

MutPred

0.53

Loss of catalytic residue at P1503 (P = 0.1527);Loss of catalytic residue at P1503 (P = 0.1527);

MVP

0.42

MPC

0.62

ClinPred

0.87

GERP RS

5.5

Varity_R

0.29

gMVP

0.43

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.10

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