Genetic Variant NAALADL2:p.Ile200Thr (chr3-175233984-T-C) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_207015.3(NAALADL2):c.599T>C(p.Ile200Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000124 in 1,608,070 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

NAALADL2
NM_207015.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.83

Variant links:

Genes affected

NAALADL2 (HGNC:23219): (N-acetylated alpha-linked acidic dipeptidase like 2) Predicted to enable metalloexopeptidase activity. Predicted to be involved in proteolysis. Predicted to act upstream of or within response to bacterium. Located in nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

NAALADL2 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
NAALADL2	NM_207015.3 link	c.599T>C	p.Ile200Thr	missense_variant	Exon 3 of 14	ENST00000454872.6	NP_996898.2	Q58DX5-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
NAALADL2	ENST00000454872.6 link	c.599T>C	p.Ile200Thr	missense_variant	Exon 3 of 14	1	NM_207015.3	ENSP00000404705.1	Q58DX5-1
NAALADL2	ENST00000485853.5 link	n.685T>C		non_coding_transcript_exon_variant	Exon 3 of 4	1
NAALADL2	ENST00000473253.5 link	n.831T>C		non_coding_transcript_exon_variant	Exon 3 of 11	2
NAALADL2	ENST00000489299.5 link	n.338T>C		non_coding_transcript_exon_variant	Exon 3 of 11	2

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152186

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.00

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.0000121

AC:

AN:

248244

Hom.:

AF XY:

0.00000743

AC XY:

AN XY:

134626

show subpopulations

Gnomad AFR exome

AF:

0.000129

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:

0.00000890

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000893

AC:

AN:

1455766

Hom.:

Cov.:

AF XY:

0.00000552

AC XY:

AN XY:

724570

show subpopulations

Gnomad4 AFR exome

AF:

0.0000300

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000994

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000460

AC:

AN:

152304

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74468

show subpopulations

Gnomad4 AFR

AF:

0.0000962

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.0000329

Hom.:

Bravo

AF:

0.0000264

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.000269

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000166

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 05, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.599T>C (p.I200T) alteration is located in exon 3 (coding exon 3) of the NAALADL2 gene. This alteration results from a T to C substitution at nucleotide position 599, causing the isoleucine (I) at amino acid position 200 to be replaced by a threonine (T). 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

Uncertain

0.52

BayesDel_addAF

Benign

-0.10

BayesDel_noAF

Benign

-0.15

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.026

Eigen

Uncertain

0.37

Eigen_PC

Uncertain

0.47

FATHMM_MKL

Uncertain

0.96

M_CAP

Benign

0.019

MetaRNN

Uncertain

0.70

MetaSVM

Benign

-0.74

MutationAssessor

Benign

1.9

PrimateAI

Uncertain

0.50

PROVEAN

Uncertain

-3.9

REVEL

Benign

0.24

Sift

Uncertain

0.0040

Sift4G

Uncertain

0.0060

Polyphen

0.88

Vest4

0.81

MVP

0.69

MPC

0.0091

ClinPred

0.83

GERP RS

5.9

Varity_R

0.39

gMVP

0.64

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