rs143972828

Positions:

chr7-103610759-T-G

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 0P and 11B. BP4_ModerateBP6BS1BS2

The NM_005045.4(RELN):c.2944A>C(p.Ile982Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000478 in 1,612,514 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00031 ( 2 hom., cov: 32)

Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

RELN
NM_005045.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 2.89

Variant links:

Genes affected

RELN (HGNC:9957): (reelin) This gene encodes a large secreted extracellular matrix protein thought to control cell-cell interactions critical for cell positioning and neuronal migration during brain development. This protein may be involved in schizophrenia, autism, bipolar disorder, major depression and in migration defects associated with temporal lobe epilepsy. Mutations of this gene are associated with autosomal recessive lissencephaly with cerebellar hypoplasia. Two transcript variants encoding distinct isoforms have been identified for this gene. Other transcript variants have been described but their full length nature has not been determined. [provided by RefSeq, Jul 2008]

RELN links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -11 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.13683867).

BP6

Variant 7-103610759-T-G is Benign according to our data. Variant chr7-103610759-T-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 542587.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=2, Benign=1}.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000309 (47/152254) while in subpopulation AFR AF= 0.00108 (45/41544). AF 95% confidence interval is 0.000832. There are 2 homozygotes in gnomad4. There are 24 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 2 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
RELN	NM_005045.4 link	c.2944A>C	p.Ile982Leu	missense_variant	22/65	ENST00000428762.6	NP_005036.2	P78509-1
RELN	NM_173054.3 link	c.2944A>C	p.Ile982Leu	missense_variant	22/64		NP_774959.1	P78509-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RELN	ENST00000428762.6 link	c.2944A>C	p.Ile982Leu	missense_variant	22/65	5	NM_005045.4	ENSP00000392423.1		P78509-1

Frequencies

GnomAD3 genomes

AF:

0.000256

AC:

AN:

152136

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000893

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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

GnomAD3 exomes

AF:

0.0000478

AC:

AN:

251178

Hom.:

AF XY:

0.0000516

AC XY:

AN XY:

135744

show subpopulations

Gnomad AFR exome

AF:

0.000431

Gnomad AMR exome

AF:

0.0000868

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:

0.000327

GnomAD4 exome

AF:

0.0000205

AC:

AN:

1460260

Hom.:

Cov.:

AF XY:

0.0000193

AC XY:

AN XY:

726534

show subpopulations

Gnomad4 AFR exome

AF:

0.000628

Gnomad4 AMR exome

AF:

0.000112

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:

9.00e-7

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.000309

AC:

AN:

152254

Hom.:

Cov.:

AF XY:

0.000322

AC XY:

AN XY:

74462

show subpopulations

Gnomad4 AFR

AF:

0.00108

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000324

Hom.:

Bravo

AF:

0.000280

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000659

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Feb 27, 2023

Variant summary: RELN c.2944A>C (p.Ile982Leu) results in a conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 4.8e-05 in 251178 control chromosomes. To our knowledge, no occurrence of c.2944A>C in individuals affected with Epilepsy Familial Temporal Lobe 7 and no experimental evidence demonstrating its impact on protein function have been reported. One clinical diagnostic laboratory has submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. One laboratory classified the variant as benign. Based on the evidence outlined above, the variant was classified as uncertain significance. -

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 26, 2024

The c.2944A>C (p.I982L) alteration is located in exon 22 (coding exon 22) of the RELN gene. This alteration results from a A to C substitution at nucleotide position 2944, causing the isoleucine (I) at amino acid position 982 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Norman-Roberts syndrome;C4225327:Familial temporal lobe epilepsy 7

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 17, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.43

BayesDel_noAF

Benign

-0.49

CADD

Benign

DANN

Benign

0.96

DEOGEN2

Benign

0.080

T;.;.

Eigen

Benign

-0.20

Eigen_PC

Benign

-0.054

FATHMM_MKL

Uncertain

0.88

LIST_S2

Uncertain

0.92

D;D;D

M_CAP

Benign

0.0074

MetaRNN

Benign

0.14

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.4

L;L;.

PrimateAI

Uncertain

0.52

PROVEAN

Benign

-0.68

N;N;N

REVEL

Benign

0.048

Sift

Benign

0.067

T;T;T

Sift4G

Uncertain

0.047

D;D;D

Polyphen

0.0050

B;B;.

Vest4

0.30

MVP

0.22

MPC

0.17

ClinPred

0.055

GERP RS

2.4

Varity_R

0.12

gMVP

0.31

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

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over