rs774709748
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Variant summary
Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_StrongBP6_Very_Strong
The NM_002485.5(NBN):c.38-20T>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000187 in 1,607,538 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000018 ( 0 hom. )
Consequence
NBN
NM_002485.5 intron
NM_002485.5 intron
Scores
2
Clinical Significance
Conservation
PhyloP100: -0.280
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]
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ACMG classification
Classification made for transcript
Verdict is Benign. Variant got -12 ACMG points.
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
Variant 8-89982875-A-T is Benign according to our data. Variant chr8-89982875-A-T is described in ClinVar as [Likely_benign]. Clinvar id is 383426.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
NBN | NM_002485.5 | c.38-20T>A | intron_variant | ENST00000265433.8 | NP_002476.2 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
NBN | ENST00000265433.8 | c.38-20T>A | intron_variant | 1 | NM_002485.5 | ENSP00000265433 | P1 |
Frequencies
GnomAD3 genomes AF: 0.0000263 AC: 4AN: 152118Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.0000401 AC: 10AN: 249166Hom.: 0 AF XY: 0.0000296 AC XY: 4AN XY: 135018
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GnomAD4 exome AF: 0.0000179 AC: 26AN: 1455302Hom.: 0 Cov.: 31 AF XY: 0.0000193 AC XY: 14AN XY: 724266
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GnomAD4 genome AF: 0.0000263 AC: 4AN: 152236Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1AN XY: 74450
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ClinVar
Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
not specified Benign:1
Likely benign, criteria provided, single submitter | clinical testing | GeneDx | Jan 30, 2017 | This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. - |
Microcephaly, normal intelligence and immunodeficiency Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Jan 25, 2024 | - - |
Computational scores
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Benign
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DANN
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Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at