ENST00000396252.6:n.-230+2191T>C

Variant names:

• chr8-90001267-C-G
• ENST00000396252.6:n.-230+1845G>C

Variant summary

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

The ENST00000396252.6(NBN):​n.-230+1845G>C variant causes a intron 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: 33)
• Consequence: NBN ENST00000396252.6 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0520
• Publications: 0 publications found

Genes affected

NBN (HGNC:7652): (nibrin) Mutations in this gene are associated with Nijmegen breakage syndrome, an autosomal recessive chromosomal instability syndrome characterized by microcephaly, growth retardation, immunodeficiency, and cancer predisposition. The encoded protein is a member of the MRE11/RAD50 double-strand break repair complex which consists of 5 proteins. This gene product is thought to be involved in DNA double-strand break repair and DNA damage-induced checkpoint activation. [provided by RefSeq, Jul 2008]

ENSG00000298563 (HGNC:):

DECR1 (HGNC:2753): (2,4-dienoyl-CoA reductase 1) Enables 2,4-dienoyl-CoA reductase (NADPH) activity; NADPH binding activity; and identical protein binding activity. Involved in fatty acid beta-oxidation. Located in cytosol; mitochondrion; and nucleoplasm. Part of catalytic complex. [provided by Alliance of Genome Resources, Apr 2022]

DECR1 Gene-Disease associations (from GenCC):

• liver disorder

  Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics
• progressive encephalopathy with leukodystrophy due to DECR deficiency

  Inheritance: Unknown Classification: LIMITED, NO_KNOWN Submitted by: ClinGen, Labcorp Genetics (formerly Invitae)

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=-0.8).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DECR1	NM_001359.2	c.-226C>G		upstream_gene_variant		ENST00000220764.7	NP_001350.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DECR1	ENST00000220764.7	c.-226C>G		upstream_gene_variant		1	NM_001359.2	ENSP00000220764.2

Frequencies

GnomAD3 genomes Cov.: 33

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

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.80
CADD	Benign	3.9
DANN	Benign	0.69
PhyloP100		-0.052
PromoterAI		0.015	Neutral

Splicing

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

Other links and lift over

hg19: chr8-91013495;