Genetic Variant NM_020448.5:c.380C>T (chr1-24445230-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_020448.5(NIPAL3):c.380C>T(p.Pro127Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000932 in 1,609,192 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. P127P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000082 ( 0 hom. )

Consequence

NIPAL3
NM_020448.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.20

Variant links:

Genes affected

NIPAL3 (HGNC:25233): (NIPA like domain containing 3) Predicted to enable magnesium ion transmembrane transporter activity. Predicted to be involved in magnesium ion transport. Predicted to be integral component of membrane. Predicted to be active in membrane. [provided by Alliance of Genome Resources, Apr 2022]

NIPAL3 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 rank	MANE	Protein	UniProt
NIPAL3	NM_020448.5 link	c.380C>T	p.Pro127Leu	missense_variant	Exon 5 of 12	ENST00000374399.9	NP_065181.1	Q6P499-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
NIPAL3	ENST00000374399.9 link	c.380C>T	p.Pro127Leu	missense_variant	Exon 5 of 12	1	NM_020448.5	ENSP00000363520.4	Q6P499-1
NIPAL3	ENST00000003912.7 link	c.134C>T	p.Pro45Leu	missense_variant	Exon 6 of 13	1		ENSP00000003912.3	Q6P499-2
NIPAL3	ENST00000358028.8 link	c.380C>T	p.Pro127Leu	missense_variant	Exon 5 of 8	1		ENSP00000350722.4	Q6P499-3
NIPAL3	ENST00000339255.2 link	c.380C>T	p.Pro127Leu	missense_variant	Exon 5 of 12	5		ENSP00000343549.2	A6NN97

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152168

Hom.:

Cov.:

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:

0.000193

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251216

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135802

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:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.00000824

AC:

AN:

1457024

Hom.:

Cov.:

AF XY:

0.00000965

AC XY:

AN XY:

725196

show subpopulations

Gnomad4 AFR exome

AF:

0.0000599

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000465

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000451

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152168

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74344

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Sep 27, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.380C>T (p.P127L) alteration is located in exon 5 (coding exon 4) of the NIPAL3 gene. This alteration results from a C to T substitution at nucleotide position 380, causing the proline (P) at amino acid position 127 to be replaced by a leucine (L). 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

0.19

BayesDel_addAF

Pathogenic

0.19

BayesDel_noAF

Uncertain

0.030

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.63

D;.;.;.

Eigen

Uncertain

0.52

Eigen_PC

Uncertain

0.57

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Benign

0.81

T;T;T;T

M_CAP

Uncertain

0.13

MetaRNN

Uncertain

0.51

D;D;D;D

MetaSVM

Uncertain

-0.14

MutationAssessor

Benign

1.8

L;.;L;.

PrimateAI

Uncertain

0.55

PROVEAN

Benign

-2.2

N;N;D;N

REVEL

Uncertain

0.46

Sift

Benign

0.11

T;T;T;T

Sift4G

Uncertain

0.019

D;D;D;D

Polyphen

1.0

D;.;D;D

Vest4

0.56

MutPred

0.53

Gain of MoRF binding (P = 0.0199);.;Gain of MoRF binding (P = 0.0199);Gain of MoRF binding (P = 0.0199);

MVP

0.65

MPC

0.79

ClinPred

0.97

GERP RS

5.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.32

gMVP

0.72

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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