rs823167

Variant names:

• chr1-231631484-G-A
• rs823167
• NM_018662.3:c.67+4550G>A

Variant summary

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

The NM_018662.3(DISC1):​c.67+4550G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.458 in 152,012 control chromosomes in the GnomAD database, including 16,625 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 0.46 (16625 hom., cov: 32)
• Consequence: DISC1 NM_018662.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -2.03
• Publications: 9 publications found

Genes affected

DISC1 (HGNC:2888): (DISC1 scaffold protein) This gene encodes a protein with multiple coiled coil motifs which is located in the nucleus, cytoplasm and mitochondria. The protein is involved in neurite outgrowth and cortical development through its interaction with other proteins. This gene is disrupted in a t(1;11)(q42.1;q14.3) translocation which segregates with schizophrenia and related psychiatric disorders in a large Scottish family. Alternate transcriptional splice variants, encoding different isoforms, have been characterized. [provided by RefSeq, Jul 2008]

TSNAX-DISC1 (HGNC:49177): (TSNAX-DISC1 readthrough (NMD candidate)) This gene represents naturally occurring read-through transcription between the neighboring TSNAX (translin-associated factor X) and DISC1 (disrupted in schizophrenia 1) genes on chromosome 1. Alternative splicing results in multiple transcript variants, all of which are candidates for nonsense-mediated mRNA decay (NMD) and are unlikely to be protein-coding. These alterations in gene processing may be associated with risk for psychiatric illness, most notably, schizophrenia. [provided by RefSeq, Nov 2010]

ACMG classification

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

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-1.04).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.803 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DISC1	NM_018662.3	c.67+4550G>A		intron_variant	Intron 1 of 12	ENST00000439617.8	NP_061132.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DISC1	ENST00000439617.8	c.67+4550G>A		intron_variant	Intron 1 of 12	5	NM_018662.3	ENSP00000403888.4
DISC1	ENST00000366637.8	c.67+4550G>A		intron_variant	Intron 1 of 12	5		ENSP00000355597.6
TSNAX-DISC1	ENST00000602956.5	n.496-62342G>A		intron_variant	Intron 5 of 12	2		ENSP00000473532.1

Frequencies

GnomAD3 genomes AF: 0.458 AC: 69511 AN: 151894 Hom.: 16590 Cov.: 32

Gnomad AFR AF: 0.518

Gnomad AMI AF: 0.296

Gnomad AMR AF: 0.494

Gnomad ASJ AF: 0.428

Gnomad EAS AF: 0.824

Gnomad SAS AF: 0.468

Gnomad FIN AF: 0.414

Gnomad MID AF: 0.354

Gnomad NFE AF: 0.396

Gnomad OTH AF: 0.444

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

GnomAD4 genome AF: 0.458 AC: 69598 AN: 152012 Hom.: 16625 Cov.: 32 AF XY: 0.461 AC XY: 34254 AN XY: 74290

African (AFR) AF: 0.518 AC: 21478 AN: 41474

American (AMR) AF: 0.495 AC: 7557 AN: 15274

Ashkenazi Jewish (ASJ) AF: 0.428 AC: 1484 AN: 3470

East Asian (EAS) AF: 0.824 AC: 4258 AN: 5170

South Asian (SAS) AF: 0.468 AC: 2249 AN: 4804

European-Finnish (FIN) AF: 0.414 AC: 4360 AN: 10526

Middle Eastern (MID) AF: 0.350 AC: 103 AN: 294

European-Non Finnish (NFE) AF: 0.396 AC: 26893 AN: 67982

Other (OTH) AF: 0.449 AC: 947 AN: 2108

Alfa AF: 0.426 Hom.: 1726

Bravo AF: 0.469

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-1.0
CADD	Benign	0.19
DANN	Benign	0.49
PhyloP100		-2.0
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: rs823167; hg19: chr1-231767230;