Genetic Variant NHSL2:p.Pro19Arg (chrX-71911143-C-G) – ACMG Classification: Benign (-8 pts)

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_001013627.3(NHSL2):c.56C>G(p.Pro19Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000465 in 1,118,497 control chromosomes in the GnomAD database, including 1 homozygotes. There are 28 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000018 ( 0 hom., 2 hem., cov: 23)

Exomes 𝑓: 0.000050 ( 1 hom. 26 hem. )

Consequence

NHSL2
NM_001013627.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.0900

Variant links:

Genes affected

NHSL2 (HGNC:33737): (NHS like 2) Predicted to enable calcium ion binding activity. Predicted to be involved in cell differentiation. Predicted to be active in cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

NHSL2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.004713744).

BS2

High Hemizygotes in GnomAd4 at 2 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NHSL2	NM_001013627.3 link	c.56C>G	p.Pro19Arg	missense_variant	Exon 1 of 8	ENST00000633930.2	NP_001013649.2	Q5HYW2-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NHSL2	ENST00000633930.2 link	c.56C>G	p.Pro19Arg	missense_variant	Exon 1 of 8	5	NM_001013627.3	ENSP00000488668.1		Q5HYW2-1

Frequencies

GnomAD3 genomes

AF:

0.0000177

AC:

AN:

112896

Hom.:

Cov.:

AF XY:

0.0000570

AC XY:

AN XY:

35108

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:

0.000709

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000139

AC:

AN:

64559

Hom.:

AF XY:

0.000338

AC XY:

AN XY:

17739

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:

0.000814

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000421

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000497

AC:

AN:

1005555

Hom.:

Cov.:

AF XY:

0.0000813

AC XY:

AN XY:

319869

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:

0.00100

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000250

Gnomad4 OTH exome

AF:

0.0000470

GnomAD4 genome

AF:

0.0000177

AC:

AN:

112942

Hom.:

Cov.:

AF XY:

0.0000569

AC XY:

AN XY:

35164

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:

0.000712

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000142

Hom.:

Bravo

AF:

0.00000756

ExAC

AF:

0.000829

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 16, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.56C>G (p.P19R) alteration is located in exon 1 (coding exon 1) of the NHSL2 gene. This alteration results from a C to G substitution at nucleotide position 56, causing the proline (P) at amino acid position 19 to be replaced by an arginine (R). 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

0.10

BayesDel_noAF

Benign

-0.32

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.013

FATHMM_MKL

Benign

0.14

LIST_S2

Benign

0.41

MetaRNN

Benign

0.0047

MetaSVM

Benign

-1.1

PrimateAI

Uncertain

0.78

Sift4G

Benign

0.12

Vest4

0.089

MutPred

0.34

Loss of loop (P = 0.0075);

GERP RS

3.2

gMVP

0.10

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