7-103757772-T-C

Variant names:

• chr7-103757772-T-C
• rs2283029
• NM_005045.4:c.545-4558A>G

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_005045.4(RELN):​c.545-4558A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.182 in 152,042 control chromosomes in the GnomAD database, including 2,735 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.18 (2735 hom., cov: 31)
• Consequence: RELN NM_005045.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.507
• Publications: 4 publications found

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 Gene-Disease associations (from GenCC):

• lissencephaly with cerebellar hypoplasia

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• Norman-Roberts syndrome

  Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Illumina, Labcorp Genetics (formerly Invitae), Ambry Genetics, Orphanet, G2P, PanelApp Australia
• familial temporal lobe epilepsy 7

  Inheritance: AD Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
• autosomal dominant epilepsy with auditory features

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• ankylosing spondylitis

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
• complex neurodevelopmental disorder

  Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.93).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.249 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
RELN	NM_005045.4	c.545-4558A>G		intron_variant	Intron 4 of 64	ENST00000428762.6	NP_005036.2
RELN	NM_173054.3	c.545-4558A>G		intron_variant	Intron 4 of 63		NP_774959.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
RELN	ENST00000428762.6	c.545-4558A>G		intron_variant	Intron 4 of 64	5	NM_005045.4	ENSP00000392423.1

Frequencies

GnomAD3 genomes AF: 0.182 AC: 27713 AN: 151924 Hom.: 2733 Cov.: 31

Gnomad AFR AF: 0.252

Gnomad AMI AF: 0.116

Gnomad AMR AF: 0.149

Gnomad ASJ AF: 0.179

Gnomad EAS AF: 0.106

Gnomad SAS AF: 0.130

Gnomad FIN AF: 0.127

Gnomad MID AF: 0.229

Gnomad NFE AF: 0.166

Gnomad OTH AF: 0.184

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.182 AC: 27740 AN: 152042 Hom.: 2735 Cov.: 31 AF XY: 0.180 AC XY: 13386 AN XY: 74334

African (AFR) AF: 0.253 AC: 10474 AN: 41462

American (AMR) AF: 0.149 AC: 2270 AN: 15264

Ashkenazi Jewish (ASJ) AF: 0.179 AC: 620 AN: 3472

East Asian (EAS) AF: 0.105 AC: 546 AN: 5178

South Asian (SAS) AF: 0.130 AC: 628 AN: 4822

European-Finnish (FIN) AF: 0.127 AC: 1350 AN: 10592

Middle Eastern (MID) AF: 0.219 AC: 64 AN: 292

European-Non Finnish (NFE) AF: 0.166 AC: 11296 AN: 67940

Other (OTH) AF: 0.183 AC: 386 AN: 2108

Alfa AF: 0.172 Hom.: 5334

Bravo AF: 0.186

Asia WGS AF: 0.131 AC: 456 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.93
CADD	Benign	1.6
DANN	Benign	0.61
PhyloP100		-0.51
Mutation Taster		=100/0	polymorphism (auto)

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

Other links and lift over

dbSNP: rs2283029; hg19: chr7-103398219;