Genetic Variant NEXMIF:p.Arg481Arg (chrX-74743116-G-T) – ACMG Classification: Benign (-11 pts)

Variant summary

Our verdict is Benign. The variant received -11 ACMG points: 0P and 11B. BP4_StrongBP6_ModerateBP7BS2

The NM_001008537.3(NEXMIF):c.1441C>A(p.Arg481Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000638 in 1,097,741 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 3 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: not found (cov: 22)

Exomes 𝑓: 0.0000064 ( 0 hom. 3 hem. )

Consequence

NEXMIF
NM_001008537.3 synonymous

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 2.03

Publications

2 publications found

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 Gene-Disease associations (from GenCC):

X-linked complex neurodevelopmental disorder
Inheritance: XL Classification: DEFINITIVE Submitted by: ClinGen
X-linked intellectual disability, Cantagrel type
Inheritance: XL Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)
myoclonic-astatic epilepsy
Inheritance: Unknown Classification: SUPPORTIVE Submitted by: Orphanet

NEXMIF links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -11 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.58).

BP6

Variant X-74743116-G-T is Benign according to our data. Variant chrX-74743116-G-T is described in ClinVar as Likely_benign. ClinVar VariationId is 1612818.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=2.03 with no splicing effect.

BS2

High Hemizygotes in GnomAdExome4 at 3 Unknown,XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NEXMIF	NM_001008537.3 link	c.1441C>A	p.Arg481Arg	synonymous_variant	Exon 3 of 4	ENST00000055682.12	NP_001008537.1	Q5QGS0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
NEXMIF	ENST00000055682.12 link	c.1441C>A	p.Arg481Arg	synonymous_variant	Exon 3 of 4	1	NM_001008537.3	ENSP00000055682.5	Q5QGS0
NEXMIF	ENST00000616200.2 link	c.1441C>A	p.Arg481Arg	synonymous_variant	Exon 3 of 5	1		ENSP00000480284.1	Q5QGS0
NEXMIF	ENST00000642681.2 link	c.1441C>A	p.Arg481Arg	synonymous_variant	Exon 3 of 3			ENSP00000495800.1	A0A2R8YEQ5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000638

AC:

AN:

1097741

Hom.:

Cov.:

AF XY:

0.00000826

AC XY:

AN XY:

363137

show subpopulations

African (AFR)

AF:

0.000152

AC:

AN:

26398

American (AMR)

AF:

0.00

AC:

AN:

35153

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

19377

East Asian (EAS)

AF:

0.00

AC:

AN:

30196

South Asian (SAS)

AF:

0.00

AC:

AN:

54089

European-Finnish (FIN)

AF:

0.00

AC:

AN:

40463

Middle Eastern (MID)

AF:

0.000242

AC:

AN:

4134

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

841862

Other (OTH)

AF:

0.0000434

AC:

AN:

46069

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.450

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:1

Nov 06, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.58

CADD

Benign

6.5

(source)

DANN

Benign

0.59

PhyloP100

2.0

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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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over