1-231681096-C-T

Variant names:

• chr1-231681096-C-T
• rs12042938
• NM_018662.3:c.68-12730C>T

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_Moderate BA1

The NM_018662.3(DISC1):​c.68-12730C>T 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 152,058 control chromosomes in the GnomAD database, including 16,661 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 (16661 hom., cov: 33)
• Consequence: DISC1 NM_018662.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.11
• Publications: 22 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 -10 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.34).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.801 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DISC1	NM_018662.3	c.68-12730C>T		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.68-12730C>T		intron_variant	Intron 1 of 12	5	NM_018662.3	ENSP00000403888.4
DISC1	ENST00000366637.8	c.68-12730C>T		intron_variant	Intron 1 of 12	5		ENSP00000355597.6
TSNAX-DISC1	ENST00000602956.5	n.496-12730C>T		intron_variant	Intron 5 of 12	2		ENSP00000473532.1

Frequencies

GnomAD3 genomes AF: 0.458 AC: 69606 AN: 151940 Hom.: 16623 Cov.: 33

Gnomad AFR AF: 0.517

Gnomad AMI AF: 0.296

Gnomad AMR AF: 0.493

Gnomad ASJ AF: 0.428

Gnomad EAS AF: 0.822

Gnomad SAS AF: 0.439

Gnomad FIN AF: 0.412

Gnomad MID AF: 0.354

Gnomad NFE AF: 0.400

Gnomad OTH AF: 0.446

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

GnomAD4 genome AF: 0.458 AC: 69702 AN: 152058 Hom.: 16661 Cov.: 33 AF XY: 0.460 AC XY: 34173 AN XY: 74326

African (AFR) AF: 0.517 AC: 21440 AN: 41458

American (AMR) AF: 0.494 AC: 7540 AN: 15268

Ashkenazi Jewish (ASJ) AF: 0.428 AC: 1485 AN: 3470

East Asian (EAS) AF: 0.822 AC: 4257 AN: 5180

South Asian (SAS) AF: 0.440 AC: 2117 AN: 4816

European-Finnish (FIN) AF: 0.412 AC: 4355 AN: 10582

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

European-Non Finnish (NFE) AF: 0.400 AC: 27181 AN: 67966

Other (OTH) AF: 0.451 AC: 955 AN: 2116

Alfa AF: 0.420 Hom.: 43097

Bravo AF: 0.471

Asia WGS AF: 0.611 AC: 2124 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.34
CADD	Benign	12
DANN	Benign	0.68
PhyloP100		1.1
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: rs12042938; hg19: chr1-231816842;