Genetic Variant NHERF2:p.Arg84Trp (chr16-2029618-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001130012.3(NHERF2):c.250C>T(p.Arg84Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000329 in 1,579,182 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 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. R84Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000034 ( 0 hom. )

Consequence

NHERF2
NM_001130012.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.04

Variant links:

Genes affected

NHERF2 (HGNC:11076): (NHERF family PDZ scaffold protein 2) This gene encodes a member of the NHERF family of PDZ scaffolding proteins. These proteins mediate many cellular processes by binding to and regulating the membrane expression and protein-protein interactions of membrane receptors and transport proteins. The encoded protein plays a role in intestinal sodium absorption by regulating the activity of the sodium/hydrogen exchanger 3, and may also regulate the cystic fibrosis transmembrane regulator (CFTR) ion channel. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Nov 2011]

NHERF2 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.25288296).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NHERF2	NM_001130012.3 link	c.250C>T	p.Arg84Trp	missense_variant	Exon 2 of 7	ENST00000424542.7	NP_001123484.1	Q15599-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NHERF2	ENST00000424542.7 link	c.250C>T	p.Arg84Trp	missense_variant	Exon 2 of 7	1	NM_001130012.3	ENSP00000408005.2		Q15599-1

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152202

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000309

AC:

AN:

193990

Hom.:

AF XY:

0.0000383

AC XY:

AN XY:

104322

show subpopulations

Gnomad AFR exome

AF:

0.000184

Gnomad AMR exome

AF:

0.0000352

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000404

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000237

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000336

AC:

AN:

1426862

Hom.:

Cov.:

AF XY:

0.0000368

AC XY:

AN XY:

706272

show subpopulations

Gnomad4 AFR exome

AF:

0.0000305

Gnomad4 AMR exome

AF:

0.0000254

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000370

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000365

Gnomad4 OTH exome

AF:

0.0000508

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152320

Hom.:

Cov.:

AF XY:

0.0000268

AC XY:

AN XY:

74490

show subpopulations

Gnomad4 AFR

AF:

0.0000722

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000564

Hom.:

Bravo

AF:

0.0000189

ExAC

AF:

0.0000255

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 24, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.250C>T (p.R84W) alteration is located in exon 2 (coding exon 2) of the SLC9A3R2 gene. This alteration results from a C to T substitution at nucleotide position 250, causing the arginine (R) at amino acid position 84 to be replaced by a tryptophan (W). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.16

BayesDel_addAF

Uncertain

0.10

BayesDel_noAF

Benign

-0.090

CADD

Benign

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.24

.;T;.

Eigen

Benign

-0.20

Eigen_PC

Benign

-0.27

FATHMM_MKL

Benign

0.20

LIST_S2

Uncertain

0.95

D;D;D

M_CAP

Uncertain

0.15

MetaRNN

Benign

0.25

T;T;T

MetaSVM

Benign

-0.94

MutationAssessor

Uncertain

2.2

.;M;M

PrimateAI

Uncertain

0.49

PROVEAN

Pathogenic

-6.5

D;D;D

REVEL

Benign

0.17

Sift

Uncertain

0.0020

D;D;D

Sift4G

Uncertain

0.0020

D;D;D

Polyphen

1.0

.;D;.

Vest4

0.45, 0.36

MutPred

0.60

.;Loss of disorder (P = 8e-04);Loss of disorder (P = 8e-04);

MVP

0.93

MPC

0.064

ClinPred

0.18

GERP RS

3.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.67

gMVP

0.57

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