Genetic Variant CHL1:p.Arg82Gly (chr3-328213-C-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_006614.4(CHL1):c.244C>G(p.Arg82Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000435 in 1,609,206 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

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

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

CHL1
NM_006614.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.88

Variant links:

Genes affected

CHL1 (HGNC:1939): (cell adhesion molecule L1 like) The protein encoded by this gene is a member of the L1 gene family of neural cell adhesion molecules. It is a neural recognition molecule that may be involved in signal transduction pathways. The deletion of one copy of this gene may be responsible for mental defects in patients with 3p- syndrome. This protein may also play a role in the growth of certain cancers. Alternate splicing results in both coding and non-coding variants. [provided by RefSeq, Nov 2011]

CHL1 links:

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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 rank	MANE	Protein	UniProt
CHL1	NM_006614.4 link	c.244C>G	p.Arg82Gly	missense_variant	Exon 5 of 28	ENST00000256509.7	NP_006605.2	O00533-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CHL1	ENST00000256509.7 link	c.244C>G	p.Arg82Gly	missense_variant	Exon 5 of 28	1	NM_006614.4	ENSP00000256509.2		O00533-2

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152048

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000197

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:

0.00

GnomAD3 exomes

AF:

0.0000161

AC:

AN:

249122

Hom.:

AF XY:

0.00000742

AC XY:

AN XY:

134718

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000118

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:

0.00

GnomAD4 exome

AF:

0.00000275

AC:

AN:

1457158

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

724920

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000902

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152048

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74270

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000197

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:

0.00

Bravo

AF:

0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.76

BayesDel_addAF

Uncertain

0.11

BayesDel_noAF

Pathogenic

0.14

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.29

.;T;.;.;T;.

Eigen

Benign

0.17

Eigen_PC

Benign

0.18

FATHMM_MKL

Uncertain

0.92

LIST_S2

Benign

0.77

T;T;T;T;T;T

M_CAP

Uncertain

0.16

MetaRNN

Uncertain

0.54

D;D;D;D;D;D

MetaSVM

Pathogenic

0.89

PrimateAI

Benign

0.35

PROVEAN

Uncertain

-3.4

D;D;D;D;D;.

REVEL

Uncertain

0.39

Sift

Uncertain

0.021

D;D;D;T;D;.

Sift4G

Uncertain

0.015

D;D;D;D;D;D

Polyphen

0.86

P;B;.;.;.;.

Vest4

0.65

MutPred

0.38

Gain of glycosylation at T79 (P = 0.058);Gain of glycosylation at T79 (P = 0.058);Gain of glycosylation at T79 (P = 0.058);Gain of glycosylation at T79 (P = 0.058);Gain of glycosylation at T79 (P = 0.058);Gain of glycosylation at T79 (P = 0.058);

MVP

0.73

MPC

0.044

ClinPred

0.78

GERP RS

4.9

Varity_R

0.34

gMVP

0.83

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

Computational scores

Splicing

Publications

LitVar

Other links and lift over