rs201296719

chr7-103566267-G-C

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 1P and 3B. PP2 BP4_Moderate BS1_Supporting

The NM_005045.4(RELN):c.4893C>G(p.Asp1631Glu) variant causes a missense change. The variant allele was found at a frequency of 0.0000638 in 1,613,948 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D1631N) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.00015 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000055 (1 hom.)
• Consequence: RELN NM_005045.4 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4 B:1
• Conservation: PhyloP100: 3.75

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]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PP2: Missense variant where missense usually causes diseases, RELN
• BP4: Computational evidence support a benign effect (MetaRNN=0.20931554).
• BS1: Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.000151 (23/152292) while in subpopulation AMR AF= 0.000784 (12/15302). AF 95% confidence interval is 0.000452. There are 0 homozygotes in gnomad4. There are 11 alleles in male gnomad4 subpopulation. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
RELN	NM_005045.4	c.4893C>G	p.Asp1631Glu	missense_variant	33/65	ENST00000428762.6
RELN	NM_173054.3	c.4893C>G	p.Asp1631Glu	missense_variant	33/64

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
RELN	ENST00000428762.6	c.4893C>G	p.Asp1631Glu	missense_variant	33/65	5	NM_005045.4	P5

Frequencies

GnomAD3 genomes AF: 0.000151 AC: 23 AN: 152174 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000241

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000785

Gnomad ASJ AF: 0.00173

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000294

Gnomad OTH AF: 0.000955

GnomAD3 exomes AF: 0.000104 AC: 26 AN: 250604 Hom.: 0 AF XY: 0.000103 AC XY: 14 AN XY: 135462

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.000145

Gnomad ASJ exome AF: 0.00149

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000354

Gnomad OTH exome AF: 0.000327

GnomAD4 exome AF: 0.0000547 AC: 80 AN: 1461656 Hom.: 1 Cov.: 31 AF XY: 0.0000591 AC XY: 43 AN XY: 727138

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.000134

Gnomad4 ASJ exome AF: 0.00149

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000162

Gnomad4 OTH exome AF: 0.000282

GnomAD4 genome AF: 0.000151 AC: 23 AN: 152292 Hom.: 0 Cov.: 32 AF XY: 0.000148 AC XY: 11 AN XY: 74474

Gnomad4 AFR AF: 0.0000241

Gnomad4 AMR AF: 0.000784

Gnomad4 ASJ AF: 0.00173

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000294

Gnomad4 OTH AF: 0.000945

Alfa AF: 0.000100 Hom.: 0

Bravo AF: 0.000230

TwinsUK AF: 0.00 AC: 0

ALSPAC AF: 0.000519 AC: 2

ESP6500AA AF: 0.00 AC: 0

ESP6500EA AF: 0.000116 AC: 1

ExAC AF: 0.0000741 AC: 9

EpiCase AF: 0.00

EpiControl AF: 0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:4 Benign:1

Revision: criteria provided, conflicting classifications

Submissions by phenotype

not provided Uncertain:3

Uncertain significance, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Dec 01, 2021	- -
Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	Aug 03, 2022	In silico analysis supports that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 24448499, 30181556, 28404951) -
Uncertain significance, no assertion criteria provided	clinical testing	Department of Pathology and Laboratory Medicine, Sinai Health System	-	The RELN p.Asp1631Glu variant was not identified in the literature nor was it identified in Cosmic or LOVD 3.0. The variant was identified in dbSNP (ID: rs201296719, Uncertain significance) and in ClinVar (classified as a VUS by the Genetic Services Laboratory at the University of Chicago in 2015 and by Invitae in 2018). The variant was identified in control databases in 29 of 282000 chromosomes at a frequency of 0.000103 (Genome Aggregation Database Feb 27, 2017). The variant was observed in the following populations: Ashkenazi Jewish in 15 of 10342 chromosomes (freq: 0.00145), Other in 3 of 7196 chromosomes (freq: 0.000417), Latino in 7 of 35390 chromosomes (freq: 0.000198) and European (non-Finnish) in 4 of 128492 chromosomes (freq: 0.000031); it was not observed in the African, East Asian, European (Finnish), and South Asian populations. The p.Asp1631 residue is conserved in mammals and other organisms however computational analyses (PolyPhen-2, SIFT, AlignGVGD, BLOSUM, MutationTaster) provide inconsistent predictions regarding the impact to the protein; this information is not very predictive of pathogenicity. The variant occurs outside of the splicing consensus sequence and in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer) do not predict a difference in splicing. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time. This variant is classified as a variant of uncertain significance. -

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Genetic Services Laboratory, University of Chicago

Nov 05, 2015

- -

Norman-Roberts syndrome;C4225327:Familial temporal lobe epilepsy 7 Benign:1

Benign, criteria provided, single submitter

clinical testing

Invitae

Jan 15, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.66
BayesDel_addAF	Benign	-0.14	T
BayesDel_noAF	Benign	-0.22
Cadd	Uncertain	24
Dann	Uncertain	1.0
DEOGEN2	Benign	0.10	T;.;.
Eigen	Pathogenic	0.69
Eigen_PC	Pathogenic	0.71
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Uncertain	0.90	D;D;D
M_CAP	Benign	0.0095	T
MetaRNN	Benign	0.21	T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.9	L;L;.
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Uncertain	0.73	T
PROVEAN	Benign	-1.1	N;N;N
REVEL	Benign	0.17
Sift	Benign	0.65	T;T;T
Sift4G	Uncertain	0.032	D;D;D
Polyphen		0.99	D;P;.
Vest4		0.84
MutPred		0.56		Gain of sheet (P = 0.0149);Gain of sheet (P = 0.0149);Gain of sheet (P = 0.0149);
MVP		0.72
MPC		0.66
ClinPred		0.26	T
GERP RS		6.1
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.19
gMVP		0.47

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

Other links and lift over

dbSNP: rs201296719; hg19: chr7-103206714;