Genetic Variant CRISPLD2:p.Leu13Met (chr16-84838532-C-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_031476.4(CRISPLD2):c.37C>A(p.Leu13Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000979 in 1,614,080 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00010 ( 0 hom. )

Consequence

CRISPLD2
NM_031476.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.27

Variant links:

Genes affected

CRISPLD2 (HGNC:25248): (cysteine rich secretory protein LCCL domain containing 2) Predicted to enable glycosaminoglycan binding activity. Involved in face morphogenesis. Located in transport vesicle. [provided by Alliance of Genome Resources, Apr 2022]

CRISPLD2 links:

ENSG00000285848 (HGNC:):

ENSG00000285848 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
CRISPLD2	NM_031476.4 link	c.37C>A	p.Leu13Met	missense_variant	Exon 2 of 15	ENST00000262424.10	NP_113664.1	Q9H0B8-1A0A140VK80
CRISPLD2	XM_005256190.2 link	c.37C>A	p.Leu13Met	missense_variant	Exon 3 of 16		XP_005256247.1	Q9H0B8-1A0A140VK80

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CRISPLD2	ENST00000262424.10 link	c.37C>A	p.Leu13Met	missense_variant	Exon 2 of 15	1	NM_031476.4	ENSP00000262424.5		Q9H0B8-1

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

152214

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.000103

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000796

AC:

AN:

251340

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135832

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:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000103

AC:

150

AN:

1461866

Hom.:

Cov.:

AF XY:

0.0000894

AC XY:

AN XY:

727232

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000129

Gnomad4 OTH exome

AF:

0.0000994

GnomAD4 genome

AF:

0.0000526

AC:

AN:

152214

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74370

show subpopulations

Gnomad4 AFR

AF:

0.0000241

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:

0.000103

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000580

Hom.:

Bravo

AF:

0.0000264

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 06, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.37C>A (p.L13M) alteration is located in exon 2 (coding exon 1) of the CRISPLD2 gene. This alteration results from a C to A substitution at nucleotide position 37, causing the leucine (L) at amino acid position 13 to be replaced by a methionine (M). 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

0.12

BayesDel_addAF

Benign

-0.014

BayesDel_noAF

Benign

-0.26

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.092

T;.;T;.;.

Eigen

Uncertain

0.36

Eigen_PC

Uncertain

0.26

FATHMM_MKL

Uncertain

0.92

LIST_S2

Benign

0.63

T;.;T;T;T

M_CAP

Benign

0.053

MetaRNN

Uncertain

0.50

D;D;D;D;D

MetaSVM

Uncertain

-0.19

MutationAssessor

Pathogenic

3.0

M;.;.;M;M

PrimateAI

Benign

0.38

PROVEAN

Benign

-1.3

N;N;N;N;N

REVEL

Uncertain

0.39

Sift

Uncertain

0.0040

D;.;D;D;D

Sift4G

Uncertain

0.0050

D;.;D;D;D

Polyphen

0.97

D;.;.;D;D

Vest4

0.35

MutPred

0.57

Loss of catalytic residue at L13 (P = 0.0434);Loss of catalytic residue at L13 (P = 0.0434);Loss of catalytic residue at L13 (P = 0.0434);Loss of catalytic residue at L13 (P = 0.0434);Loss of catalytic residue at L13 (P = 0.0434);

MVP

0.46

MPC

0.29

ClinPred

0.93

GERP RS

2.9

Varity_R

0.19

gMVP

0.60

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