Variant X-153868962-G-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_001278116.2(L1CAM):c.1268-10C>G variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000594 in 1,178,941 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 2 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000018 ( 0 hom., 2 hem., cov: 24)

Exomes 𝑓: 0.0000047 ( 0 hom. 0 hem. )

Consequence

L1CAM
NM_001278116.2 splice_polypyrimidine_tract, intron

Scores

Splicing: ADA: 0.00006826

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.344

Variant links:

Genes affected

L1CAM (HGNC:6470): (L1 cell adhesion molecule) The protein encoded by this gene is an axonal glycoprotein belonging to the immunoglobulin supergene family. The ectodomain, consisting of several immunoglobulin-like domains and fibronectin-like repeats (type III), is linked via a single transmembrane sequence to a conserved cytoplasmic domain. This cell adhesion molecule plays an important role in nervous system development, including neuronal migration and differentiation. Mutations in the gene cause X-linked neurological syndromes known as CRASH (corpus callosum hypoplasia, retardation, aphasia, spastic paraplegia and hydrocephalus). Alternative splicing of this gene results in multiple transcript variants, some of which include an alternate exon that is considered to be specific to neurons. [provided by RefSeq, May 2013]

L1CAM links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.78).

BP6

Variant X-153868962-G-C is Benign according to our data. Variant chrX-153868962-G-C is described in ClinVar as [Likely_benign]. Clinvar id is 2109161.Status of the report is criteria_provided_single_submitter, 1 stars.

BS2

High Hemizygotes in GnomAd4 at 2 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	MANE	Protein
L1CAM	NM_001278116.2 linkuse as main transcript	c.1268-10C>G	splice_polypyrimidine_tract_variant, intron_variant	ENST00000370060.7	NP_001265045.1
L1CAM	NM_000425.5 linkuse as main transcript	c.1268-10C>G	splice_polypyrimidine_tract_variant, intron_variant		NP_000416.1
L1CAM	NM_001143963.2 linkuse as main transcript	c.1253-10C>G	splice_polypyrimidine_tract_variant, intron_variant		NP_001137435.1
L1CAM	NM_024003.3 linkuse as main transcript	c.1268-10C>G	splice_polypyrimidine_tract_variant, intron_variant		NP_076493.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
L1CAM	ENST00000370060.7 linkuse as main transcript	c.1268-10C>G		splice_polypyrimidine_tract_variant, intron_variant		5	NM_001278116.2	ENSP00000359077	A1	P32004-1

Frequencies

GnomAD3 genomes

AF:

0.0000178

AC:

AN:

112260

Hom.:

Cov.:

AF XY:

0.0000581

AC XY:

AN XY:

34412

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000187

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:

0.00000547

AC:

AN:

182676

Hom.:

AF XY:

0.00

AC XY:

AN XY:

67356

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000365

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:

0.00000469

AC:

AN:

1066681

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

334825

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000142

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:

0.0000178

AC:

AN:

112260

Hom.:

Cov.:

AF XY:

0.0000581

AC XY:

AN XY:

34412

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000187

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

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Spastic paraplegia

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Nov 19, 2023

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.78

CADD

Benign

DANN

Benign

0.43

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000068

dbscSNV1_RF

Benign

0.028

SpliceAI score (max)

0.17

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