Genetic Variant MARCKSL1:p.Asp63Val (chr1-32334997-T-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_023009.7(MARCKSL1):c.188A>T(p.Asp63Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,454,612 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

MARCKSL1
NM_023009.7 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.28

Variant links:

Genes affected

MARCKSL1 (HGNC:7142): (MARCKS like 1) This gene encodes a member of the myristoylated alanine-rich C-kinase substrate (MARCKS) family. Members of this family play a role in cytoskeletal regulation, protein kinase C signaling and calmodulin signaling. The encoded protein affects the formation of adherens junction. Alternative splicing results in multiple transcript variants. Pseudogenes of this gene are located on the long arm of chromosomes 6 and 10. [provided by RefSeq, Jun 2012]

MARCKSL1 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
MARCKSL1	NM_023009.7 link	c.188A>T	p.Asp63Val	missense_variant	Exon 2 of 2	ENST00000329421.8	NP_075385.1	P49006
MARCKSL1	NR_052852.2 link	n.163A>T		non_coding_transcript_exon_variant	Exon 2 of 2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MARCKSL1	ENST00000329421.8 link	c.188A>T	p.Asp63Val	missense_variant	Exon 2 of 2	1	NM_023009.7	ENSP00000362638.4		P49006

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000412

AC:

AN:

242464

Hom.:

AF XY:

0.00000757

AC XY:

AN XY:

132084

show subpopulations

Gnomad AFR exome

AF:

0.0000649

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1454612

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

723728

show subpopulations

Gnomad4 AFR exome

AF:

0.0000607

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 02, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.188A>T (p.D63V) alteration is located in exon 2 (coding exon 2) of the MARCKSL1 gene. This alteration results from a A to T substitution at nucleotide position 188, causing the aspartic acid (D) at amino acid position 63 to be replaced by a valine (V). 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

Pathogenic

0.82

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.35

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.42

Eigen

Uncertain

0.48

Eigen_PC

Uncertain

0.48

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.92

M_CAP

Benign

0.029

MetaRNN

Uncertain

0.45

MetaSVM

Benign

-0.98

MutationAssessor

Benign

1.9

PrimateAI

Uncertain

0.67

PROVEAN

Pathogenic

-6.5

REVEL

Benign

0.23

Sift

Uncertain

0.0020

Sift4G

Uncertain

0.0060

Polyphen

0.96

Vest4

0.51

MutPred

0.42

Gain of sheet (P = 0.0266);

MVP

0.18

MPC

0.68

ClinPred

0.91

GERP RS

4.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.79

gMVP

0.65

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