NM_144573.4:c.28-85dupT

Variant names:

• chr1-77917475-A-AT
• rs112597766
• NM_144573.4:c.28-85dupT

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_144573.4(NEXN):​c.28-85dupT variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 31)
• Consequence: NEXN NM_144573.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.250

Genes affected

NEXN (HGNC:29557): (nexilin F-actin binding protein) This gene encodes a filamentous actin-binding protein that may function in cell adhesion and migration. Mutations in this gene have been associated with dilated cardiomyopathy, also known as CMD1CC. Alternatively spliced transcript variants have been described.[provided by RefSeq, Feb 2010]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NEXN	NM_144573.4	c.28-85dupT		intron_variant	Intron 2 of 12	ENST00000334785.12	NP_653174.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NEXN	ENST00000334785.12	c.28-91_28-90insT		intron_variant	Intron 2 of 12	1	NM_144573.4	ENSP00000333938.7
NEXN	ENST00000401035.7	c.28-485_28-484insT		intron_variant	Intron 2 of 8	1		ENSP00000383814.3
NEXN	ENST00000330010.12	c.28-485_28-484insT		intron_variant	Intron 2 of 11	2		ENSP00000327363.8
NEXN	ENST00000440324.5	c.28-91_28-90insT		intron_variant	Intron 2 of 9	5		ENSP00000411902.1

Frequencies

GnomAD3 genomes Cov.: 31

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

GnomAD4 genome Cov.: 31

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

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: rs112597766; hg19: chr1-78383160;