5-177209877-C-T
Variant summary
Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2
The NM_022455.5(NSD1):c.1478C>T(p.Pro493Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000209 in 1,614,000 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P493A) has been classified as Likely benign.
Frequency
Consequence
NM_022455.5 missense
Scores
Clinical Significance
Conservation
Publications
- Beckwith-Wiedemann syndrome due to NSD1 mutationInheritance: AD Classification: DEFINITIVE Submitted by: G2P
 - Sotos syndromeInheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, G2P, ClinGen
 - Sotos syndrome 1Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Ambry Genetics
 
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ACMG classification
Our verdict: Benign. The variant received -13 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes   AF:  0.000118  AC: 18AN: 152126Hom.:  0  Cov.: 31 show subpopulations 
GnomAD2 exomes  AF:  0.0000757  AC: 19AN: 251080 AF XY:  0.0000737   show subpopulations 
GnomAD4 exome  AF:  0.000218  AC: 319AN: 1461874Hom.:  0  Cov.: 35 AF XY:  0.000210  AC XY: 153AN XY: 727236 show subpopulations 
Age Distribution
GnomAD4 genome   AF:  0.000118  AC: 18AN: 152126Hom.:  0  Cov.: 31 AF XY:  0.000121  AC XY: 9AN XY: 74314 show subpopulations 
Age Distribution
ClinVar
Submissions by phenotype
not provided    Benign:3 
NSD1: BS2 -
See Variant Classification Assertion Criteria. -
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Acute myeloid leukemia;C0175695:Sotos syndrome    Uncertain:1 
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Sotos syndrome    Uncertain:1 
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Inborn genetic diseases    Benign:1 
This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Computational scores
Source: 
Splicing
 Find out detailed SpliceAI scores and Pangolin per-transcript scores at