rs376455886

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001008537.3(NEXMIF):c.911G>T(p.Gly304Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000414 in 1,208,594 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 1 hemizygotes in GnomAD. 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. G304S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000018 ( 0 hom., 0 hem., cov: 22)

Exomes 𝑓: 0.0000027 ( 0 hom. 1 hem. )

Consequence

NEXMIF
NM_001008537.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 5.86

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 Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NEXMIF	NM_001008537.3 linkuse as main transcript	c.911G>T	p.Gly304Val	missense_variant	3/4	ENST00000055682.12

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
NEXMIF	ENST00000055682.12 linkuse as main transcript	c.911G>T	p.Gly304Val	missense_variant	3/4	1	NM_001008537.3	P1
NEXMIF	ENST00000616200.2 linkuse as main transcript	c.911G>T	p.Gly304Val	missense_variant	3/5	1		P1
NEXMIF	ENST00000642681.2 linkuse as main transcript	c.911G>T	p.Gly304Val	missense_variant	3/3

Frequencies

GnomAD3 genomes

AF:

0.0000179

AC:

AN:

111953

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

34123

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:

0.0000376

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000546

AC:

AN:

183034

Hom.:

AF XY:

0.00

AC XY:

AN XY:

67628

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:

0.00

Gnomad NFE exome

AF:

0.0000123

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1096641

Hom.:

Cov.:

AF XY:

0.00000276

AC XY:

AN XY:

362045

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:

0.00000357

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000179

AC:

AN:

111953

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

34123

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:

0.0000376

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000189

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000149

AC:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Invitae	Jan 06, 2022	This sequence change replaces glycine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 304 of the KIAA2022 protein (p.Gly304Val). This variant is present in population databases (rs376455886, gnomAD 0.001%). This variant has not been reported in the literature in individuals affected with KIAA2022-related conditions. ClinVar contains an entry for this variant (Variation ID: 574203). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C15"). 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. -
Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	Mar 26, 2019	In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.58

BayesDel_addAF

Pathogenic

0.25

BayesDel_noAF

Uncertain

0.11

Cadd

Uncertain

Dann

Uncertain

1.0

DEOGEN2

Benign

0.22

T;T;.

FATHMM_MKL

Pathogenic

0.98

M_CAP

Pathogenic

0.82

MetaRNN

Uncertain

0.71

D;D;D

MetaSVM

Benign

-0.81

MutationTaster

Benign

1.0

D;D

PrimateAI

Pathogenic

0.79

PROVEAN

Uncertain

-3.1

D;.;.

REVEL

Uncertain

0.42

Sift

Uncertain

0.0060

D;.;.

Sift4G

Uncertain

0.018

D;D;.

Polyphen

1.0

D;D;.

Vest4

0.63

MVP

0.47

MPC

0.94

ClinPred

0.78

GERP RS

5.8

Varity_R

0.69

gMVP

0.31

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