chr1-17027802-A-G
Variant summary
Our verdict is Benign. Variant got -11 ACMG points: 2P and 13B. PM1BP4_StrongBP6BS1BS2
The NM_003000.3(SDHB):c.487T>C(p.Ser163Pro) variant causes a missense change. The variant allele was found at a frequency of 0.0131 in 1,613,448 control chromosomes in the GnomAD database, including 207 homozygotes. In-silico tool predicts 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. S163F) has been classified as Uncertain significance.
Frequency
Consequence
NM_003000.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -11 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00947 AC: 1441AN: 152086Hom.: 14 Cov.: 32
GnomAD3 exomes AF: 0.0121 AC: 3045AN: 251388Hom.: 33 AF XY: 0.0130 AC XY: 1760AN XY: 135866
GnomAD4 exome AF: 0.0135 AC: 19718AN: 1461244Hom.: 193 Cov.: 29 AF XY: 0.0137 AC XY: 9927AN XY: 726966
GnomAD4 genome AF: 0.00947 AC: 1441AN: 152204Hom.: 14 Cov.: 32 AF XY: 0.00963 AC XY: 717AN XY: 74424
ClinVar
Submissions by phenotype
not specified Benign:10Other:1
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Variant summary: The SDHB c.487T>C (p.Ser163Pro) variant involves the alteration of a conserved nucleotide. 2/4 in silico tools predict a benign outcome for this variant (SNPsandGO not captured due to low reliability index). This variant was found in 1523/121404 control chromosomes (21 homozygotes) at a frequency of 0.0125449, which largely exceeds the estimated maximal expected allele frequency of a pathogenic SDHB variant (0.0000009), suggesting this variant is likely a benign polymorphism. In addition, multiple clinical diagnostic laboratories/reputable databases classified this variant as benign. Taken together, this variant is classified as benign. -
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Paragangliomas 4 Uncertain:2Benign:4
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This variant is considered benign. This variant has been observed at a population frequency that is significantly greater than expected given the associated disease prevalence and penetrance. -
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not provided Uncertain:1Benign:4
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SDHB: BS1, BS2 -
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This variant is associated with the following publications: (PMID: 19215943, 16322339, 17298551, 16912137, 22995991, 19768395, 22584711, 19802898, 19399650, 22293219, 24735130, 20981092, 27153395, 18678321, 21979946, 25376524, 22938532, 22703879, 25694510, 23666964, 25333069, 24728327, 26071763, 17102082, 17102083, 22270996, 25695889, 17639058, 14985401, 26182300, 18419787, 19153209, 19522823, 19454582, 27279923, 27884173, 26092435, 28374168, 29386252, 30050099, 31019283) -
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Hereditary cancer-predisposing syndrome Benign:2
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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. -
Cowden syndrome Uncertain:1
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Pheochromocytoma;C0238198:Gastrointestinal stromal tumor;C1861848:Paragangliomas 4 Benign:1
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Gastrointestinal stromal tumor Benign:1
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Malignant tumor of breast Benign:1
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Hereditary pheochromocytoma-paraganglioma Benign:1
This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
Carney-Stratakis syndrome Benign:1
This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at