1-232009435-G-T

Variant names:

• chr1-232009435-G-T
• rs821618
• ENST00000422590.6:n.*2554G>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The ENST00000422590.6(DISC1):​n.*2554G>T variant causes a non coding transcript exon change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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: not found (cov: 31)
• Consequence: DISC1 ENST00000422590.6 non_coding_transcript_exon
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0710
• Publications: 1 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: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.9).

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000422590.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DISC1	NM_018662.3	MANE Select	c.2307+386G>T		intron	N/A	NP_061132.2
	DISC1	NM_001164538.2		c.*281G>T		3_prime_UTR	Exon 11 of 11	NP_001158010.1
	DISC1	NM_001164541.2		c.*544G>T		3_prime_UTR	Exon 10 of 10	NP_001158013.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DISC1	ENST00000422590.6	TSL:1	n.*2554G>T		non_coding_transcript_exon	Exon 11 of 11	ENSP00000415147.2
	DISC1	ENST00000422590.6	TSL:1	n.*2554G>T		3_prime_UTR	Exon 11 of 11	ENSP00000415147.2
	DISC1	ENST00000439617.8	TSL:5 MANE Select	c.2307+386G>T		intron	N/A	ENSP00000403888.4

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 6

GnomAD4 genome Cov.: 31

Alfa AF: 0.00 Hom.: 327

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.90
CADD	Benign	0.93
DANN	Benign	0.13
PhyloP100		-0.071

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs821618; hg19: chr1-232145181;