10-106579202-G-A

Variant names:

• chr10-106579202-G-A
• rs1844748933
• NM_052918.5:c.3371+167C>T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP5_Moderate

The NM_001387556.1(SORCS1):​c.3421C>T​(p.Gln1141*) variant causes a stop gained change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,840 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: SORCS1 NM_001387556.1 stop_gained
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 9.60

Genes affected

SORCS1 (HGNC:16697): (sortilin related VPS10 domain containing receptor 1) This gene encodes one family member of vacuolar protein sorting 10 (VPS10) domain-containing receptor proteins. The VPS10 domain name comes from the yeast carboxypeptidase Y sorting receptor Vps10 protein. Members of this gene family are large with many exons but the CDS lengths are usually less than 3700 nt. Very large introns typically separate the exons encoding the VPS10 domain; the remaining exons are separated by much smaller-sized introns. These genes are strongly expressed in the central nervous system. Two of the five family members (sortilin and sortilin-related receptor) are synthesized as preproproteins; it is not yet known if this encoded protein is also a preproprotein. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 10-106579202-G-A is Pathogenic according to our data. Variant chr10-106579202-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 1691317.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SORCS1	NM_052918.5	c.3371+167C>T		intron_variant	Intron 25 of 25	ENST00000263054.11	NP_443150.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SORCS1	ENST00000263054.11	c.3371+167C>T		intron_variant	Intron 25 of 25	1	NM_052918.5	ENSP00000263054.5
SORCS1	ENST00000369698.6	c.2152C>T	p.Gln718*	stop_gained	Exon 18 of 19	5		ENSP00000358712.2
SORCS1	ENST00000452214.5	c.463C>T	p.Gln155*	stop_gained	Exon 5 of 6	3		ENSP00000407769.1
SORCS1	ENST00000473866.1	n.309C>T		non_coding_transcript_exon_variant	Exon 4 of 4	2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461840 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727228

Gnomad4 AFR exome AF: 0.0000299

Gnomad4 AMR exome AF: 0.00

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 Cov.: 32

Bravo AF: 0.00000378

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

Alzheimer disease 6 Pathogenic:1

May 12, 2022

Diagnostics Services (NGS), CSIR - Centre For Cellular And Molecular Biology

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.3421C>T variant is not present in publicly available population databases like 1000 Genomes, Exome Variant Server (EVS), Exome Aggregation Consortium (ExAC), Genome Aggregation Database (gnomAD) and Indian Exome Database. The variant is not present in our in-house exome database. The variant was not previously reported to ClinVar, Human Genome Mutation Database (HGMD) and/or OMIM databases, in any affected individuals. In-silico pathogenicity prediction programs like MutationTaster2, CADD, Varsome, InterVar etc. predicted this variant to be likely deleterious, however these predictions were not confirmed by any published functional studies. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.62	D
BayesDel_noAF	Pathogenic	0.66
CADD	Uncertain	23
DANN	Uncertain	1.0
Eigen	Pathogenic	1.2
Eigen_PC	Pathogenic	1.1
FATHMM_MKL	Pathogenic	1.0	D
Vest4		0.64
GERP RS		5.8

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

Publications

LitVar

Other links and lift over

dbSNP: rs1844748933; hg19: chr10-108338960;