dbSNP rs746603549: CAB39L:p.Met258Leu (chr13-49332009-T-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001079670.3(CAB39L):c.772A>T(p.Met258Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000657 in 152,216 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Consequence

CAB39L
NM_001079670.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.28

Publications

0 publications found

Variant links:

Genes affected

CAB39L (HGNC:20290): (calcium binding protein 39 like) Predicted to enable protein serine/threonine kinase activator activity. Predicted to be involved in intracellular signal transduction. Predicted to be located in cytosol. [provided by Alliance of Genome Resources, Apr 2022]

CAB39L links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 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
CAB39L	NM_001079670.3 link	c.772A>T	p.Met258Leu	missense_variant	Exon 10 of 11	ENST00000409308.6	NP_001073138.1	Q9H9S4A0A024RDT3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CAB39L	ENST00000409308.6 link	c.772A>T	p.Met258Leu	missense_variant	Exon 10 of 11	1	NM_001079670.3	ENSP00000386375.1		Q9H9S4

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152216

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:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

Cov.:

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152216

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74356

show subpopulations

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

41472

American (AMR)

AF:

0.00

AC:

AN:

15266

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5198

South Asian (SAS)

AF:

0.00

AC:

AN:

4836

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68028

Other (OTH)

AF:

0.00

AC:

AN:

2092

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Sep 28, 2022

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.772A>T (p.M258L) alteration is located in exon 8 (coding exon 7) of the CAB39L gene. This alteration results from a A to T substitution at nucleotide position 772, causing the methionine (M) at amino acid position 258 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

Uncertain

0.47

BayesDel_addAF

Benign

-0.066

BayesDel_noAF

Benign

-0.33

CADD

Benign

(source)

DANN

Benign

0.95

DEOGEN2

Benign

0.19

T;T;T;T;T;T;T

Eigen

Benign

0.046

Eigen_PC

Benign

0.18

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Pathogenic

0.97

.;.;D;.;D;D;.

M_CAP

Benign

0.016

MetaRNN

Uncertain

0.47

T;T;T;T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.8

L;L;L;L;.;.;L

PhyloP100

6.3

PrimateAI

Uncertain

0.71

PROVEAN

Benign

-2.4

N;.;N;N;N;N;N

REVEL

Benign

0.13

Sift

Benign

0.40

T;.;T;T;T;T;T

Sift4G

Benign

0.27

T;T;T;T;T;T;T

Polyphen

0.10

B;B;B;B;.;.;B

Vest4

0.66

MutPred

0.51

Loss of disorder (P = 0.1847);Loss of disorder (P = 0.1847);Loss of disorder (P = 0.1847);Loss of disorder (P = 0.1847);.;.;Loss of disorder (P = 0.1847);

MVP

0.45

MPC

0.24

ClinPred

0.92

GERP RS

4.6

Varity_R

0.65

gMVP

0.36

Mutation Taster

=63/37

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over