rs35268159

Positions:

• chr7-103565554-GAA-G
• chr7-103565554-GAA-GA
• chr7-103565554-GAA-GAAA
• chr7-103565554-GAA-GAAAA
• chr7-103565554-GAA-GAAAAA

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP6

The NM_005045.4(RELN):​c.4937-5_4937-4del variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000024 in 1,252,122 control chromosomes in the GnomAD database, with no homozygous occurrence. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in Lovd as Benign (no stars).

• Frequency:
  • Genomes: not found (cov: 0)
  • Exomes 𝑓: 0.0000024 (0 hom.)
• Consequence: RELN NM_005045.4 splice_region, splice_polypyrimidine_tract, intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.186

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 Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP6: Variant 7-103565554-GAA-G is Benign according to our data. Variant chr7-103565554-GAA-G is described in Lovd as [Benign].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
RELN	NM_005045.4	c.4937-5_4937-4del		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		ENST00000428762.6	NP_005036.2
RELN	NM_173054.3	c.4937-5_4937-4del		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant			NP_774959.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
RELN	ENST00000428762.6	c.4937-5_4937-4del		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		5	NM_005045.4	ENSP00000392423	P5

Frequencies

GnomAD3 genomes Cov.: 0

GnomAD4 exome AF: 0.00000240 AC: 3 AN: 1252122 Hom.: 0 AF XY: 0.00000161 AC XY: 1 AN XY: 622780

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000137

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000208

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

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: rs35268159; hg19: chr7-103206001;