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GeneBe

16-2036421-G-C

Variant summary

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

The NM_001130012.3(NHERF2):c.512G>C(p.Arg171Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000687 in 1,455,126 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R171W) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

NHERF2
NM_001130012.3 missense

Scores

2
10
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.14
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]

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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
NHERF2NM_001130012.3 linkuse as main transcriptc.512G>C p.Arg171Pro missense_variant 3/7 ENST00000424542.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
NHERF2ENST00000424542.7 linkuse as main transcriptc.512G>C p.Arg171Pro missense_variant 3/71 NM_001130012.3 P1Q15599-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000425
AC:
1
AN:
235410
Hom.:
0
AF XY:
0.00000777
AC XY:
1
AN XY:
128702
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000581
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.87e-7
AC:
1
AN:
1455126
Hom.:
0
Cov.:
32
AF XY:
0.00000138
AC XY:
1
AN XY:
723446
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000254
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
Bravo
AF:
0.00000378
ExAC
AF:
0.00000829
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJun 22, 2021The c.512G>C (p.R171P) alteration is located in exon 3 (coding exon 3) of the SLC9A3R2 gene. This alteration results from a G to C substitution at nucleotide position 512, causing the arginine (R) at amino acid position 171 to be replaced by a proline (P). 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
Pathogenic
0.89
BayesDel_addAF
Benign
-0.078
T
BayesDel_noAF
Benign
-0.17
Cadd
Pathogenic
27
Dann
Uncertain
0.99
DEOGEN2
Benign
0.16
T;.;.;T;.
Eigen
Uncertain
0.33
Eigen_PC
Uncertain
0.30
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Uncertain
0.96
D;D;D;D;D
M_CAP
Uncertain
0.14
D
MetaRNN
Uncertain
0.66
D;D;D;D;D
MetaSVM
Benign
-0.96
T
MutationAssessor
Benign
1.2
L;L;.;.;.
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Uncertain
0.66
T
PROVEAN
Pathogenic
-4.6
D;D;D;D;D
REVEL
Benign
0.28
Sift
Uncertain
0.0080
D;D;D;D;D
Sift4G
Uncertain
0.038
D;D;D;D;D
Polyphen
1.0
D;.;.;.;.
Vest4
0.69
MutPred
0.50
Loss of MoRF binding (P = 0.0183);Loss of MoRF binding (P = 0.0183);.;.;.;
MVP
0.60
MPC
0.38
ClinPred
0.97
D
GERP RS
4.0
Varity_R
0.96
gMVP
0.74

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.

Other links and lift over

dbSNP: rs555526303; hg19: chr16-2086422; API