SETBP1 c.881G>A, p.Ser294Asn

NM_015559.2:c.881G>A
Variant of Uncertain Significance (VUS)
NM_015559.2:c.881G>A (p.Ser294Asn) in SETBP1 is classified as Variant of Uncertain Significance (VUS) based on the application of PM2 (Moderate) for absence from population databases and BP4 (Supporting) for benign computational predictions, with insufficient additional evidence to support pathogenicity or benign classification.
ACMG/AMP Criteria Applied
PM2 BP4

Genetic Information

Gene & Transcript Details
Gene
SETBP1
Transcript
NM_015559.3 MANE Select
Total Exons
6
Strand
Forward (+)
Reference Sequence
NC_000018.9
Alternative Transcripts
IDStatusDetails
NM_015559.1 Alternative 5 exons | Forward
NM_015559.2 Alternative 6 exons | Forward
Variant Details
HGVS Notation
NM_015559.2:c.881G>A
Protein Change
S294N
Location
Exon 4 (Exon 4 of 6)
4
5'Exon Structure (6 total)3'
Functional Consequence
Loss of Function
Related Variants
No evidence of other pathogenic variants at position 294 in gene SETBP1
Variant interpretation based on transcript NM_015559.3

Genome Browser

UCSC Genome Browser hg19/GRCh37
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HGVS InputNM_015559:c.881G>A
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Clinical Data

Population Frequency
Global Frequency
0.0 in 100,000
Extremely Rare
Global: 0.0%
0%
0.05%
0.1%
1%
5%
10%+
ACMG Criteria Applied
PM2
This variant is not present in gnomAD (PM2 criteria applies).
ClinVar 2025-05-27T11:41:08.745073
Classification
Uncertain Significance (VUS)
Based on 1 submitter review in ClinVar
Submitter Breakdown
1 VUS
Pathogenic
Likely Path.
VUS
Likely Benign
Benign
Publications (0)
No publication details.
Clinical Statement
This variant has been reported in ClinVar as Uncertain significance (1 clinical laboratories).
COSMIC
COSMIC ID
Unknown
Recurrence
0 occurrences
PM1 Criteria
Not Applied
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Functional Impact

Functional Domain
Hotspot Status
Not a hotspot
Domain Summary

This variant is not located in a mutational hotspot or critical domain (0 mutations).

Related Variants in This Domain
No evidence of other pathogenic variants at position 294 in gene SETBP1
Functional Studies & Therapeutic Relevance
Functional Summary
The SETBP1 S294N variant has not been functionally characterized, and its biological significance remains unknown.
Database Previews
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Computational Analysis

Pathogenicity Predictions
REVEL Score
0.056
0.056
Likely Benign0.0
Uncertain (Low)0.2
Uncertain (Med)0.5
Likely Pathogenic0.75
REVEL scores ≥ 0.75 are strong evidence (PP3)
Predictor Consensus
Mixed/VUS
PP3 Applied
No
Additional Predictors
Benign:
CADD: 1.96polyphen_prediction: benignmetasvm: Tmetalr: Tprimateai: T
Neutral: Show all
SpliceAI Scores Window: ±500bp
Effect TypeScorePosition
-Acceptor Loss
0.0
-18 bp
-Donor Loss
0.0
109 bp
+Acceptor Gain
0.0
-283 bp
+Donor Gain
0.0
-88 bp
High impact (≥0.5)
Medium impact (0.2-0.49)
Low impact (<0.2)

VCEP Guidelines

Applied ACMG/AMP Criteria (VCEP Specific)
PVS1
PVS1 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for PVS1 is: 'PVS1 – Null variant in a gene where loss of function (LoF) is a known mechanism of disease'. The evidence for this variant shows it is a missense change (c.881G>A; p.Ser294Asn), not a null variant. Therefore, this criterion is not applied.
PS1
PS1 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for PS1 is: 'PS1 – Same amino acid change as a known pathogenic variant but different nucleotide change'. The evidence for this variant shows no previously established pathogenic variant at amino acid residue 294. Therefore, this criterion is not applied.
PS2
PS2 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for PS2 is: 'PS2 – De novo (both maternity and paternity confirmed) in a patient with the disease and no family history'. There is no evidence of confirmed de novo occurrence for this variant. Therefore, this criterion is not applied.
PS3
PS3 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for PS3 is: 'PS3 – Well-established functional studies supportive of a damaging effect on the gene or gene product'. No functional studies have been performed for this variant. Therefore, this criterion is not applied.
PS4
PS4 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for PS4 is: 'PS4 – Prevalence in affected individuals significantly increased compared with controls'. There are no case–control or segregation data demonstrating enrichment in affected individuals. Therefore, this criterion is not applied.
PM1
PM1 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for PM1 is: 'PM1 – Located in a mutational hot spot or well-established functional domain without benign variation'. This variant lies outside any known mutational hot spot or functional domain. Therefore, this criterion is not applied.
PM2
PM2 (Moderate)
According to standard ACMG guidelines, the rule for PM2 is: 'PM2 – Absent from controls (or at extremely low frequency if recessive)'. The evidence for this variant shows it is absent from gnomAD and other population databases. Therefore, this criterion is applied at Moderate strength because the variant is absent from controls.
PM3
PM3 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for PM3 is: 'PM3 – Detected in trans with a pathogenic variant for recessive disorders'. No evidence exists of this variant in trans with another pathogenic variant. Therefore, this criterion is not applied.
PM4
PM4 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for PM4 is: 'PM4 – Protein length changes due to in-frame deletions/insertions or stop-loss variants'. This is a missense variant without change in protein length. Therefore, this criterion is not applied.
PM5
PM5 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for PM5 is: 'PM5 – Novel missense change at an amino acid residue where a different pathogenic missense change has been seen'. No pathogenic missense variants have been reported at residue 294. Therefore, this criterion is not applied.
PM6
PM6 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for PM6 is: 'PM6 – Assumed de novo, but without confirmation of paternity and maternity'. There is no evidence of assumed de novo origin. Therefore, this criterion is not applied.
PP1
PP1 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for PP1 is: 'PP1 – Co-segregation with disease in multiple affected family members'. No segregation data are available. Therefore, this criterion is not applied.
PP2
PP2 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for PP2 is: 'PP2 – Missense variant in a gene with a low rate of benign missense variation and where missense variants are a common mechanism of disease'. SETBP1 has both missense and LoF mechanisms; this single missense does not meet PP2 without further evidence. Therefore, this criterion is not applied.
PP3
PP3 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for PP3 is: 'PP3 – Multiple lines of computational evidence support a deleterious effect on the gene/gene product'. Computational tools predict no deleterious effect for this variant. Therefore, PP3 is not applied.
PP4
PP4 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for PP4 is: 'PP4 – Patient’s phenotype or family history highly specific for a disease with a single genetic etiology'. No phenotype or family history data are provided. Therefore, this criterion is not applied.
PP5
PP5 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for PP5 is: 'PP5 – Reputable source reports variant as pathogenic, but without accessible evidence'. ClinVar reports this variant as VUS, not pathogenic. Therefore, this criterion is not applied.
BA1
BA1 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for BA1 is: 'BA1 – Allele frequency is too high for the disorder'. The allele frequency is 0% in population databases. Therefore, this criterion is not applied.
BS1
BS1 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for BS1 is: 'BS1 – Allele frequency is greater than expected for the disorder'. The allele frequency is absent, not greater than expected. Therefore, this criterion is not applied.
BS2
BS2 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for BS2 is: 'BS2 – Observed in a healthy adult individual for a dominant disorder with expected early penetrance'. No such observations are reported. Therefore, this criterion is not applied.
BS3
BS3 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for BS3 is: 'BS3 – Well-established functional studies show no damaging effect on protein function or splicing'. No functional studies exist. Therefore, this criterion is not applied.
BS4
BS4 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for BS4 is: 'BS4 – Lack of segregation in affected family members'. No segregation data are available. Therefore, this criterion is not applied.
BP1
BP1 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for BP1 is: 'BP1 – Missense variant in a gene where only loss of function causes disease'. SETBP1 disease mechanism includes both missense and LoF. Therefore, this criterion is not applied.
BP2
BP2 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for BP2 is: 'BP2 – Observed in trans with a pathogenic variant for dominant disorders or in cis with a pathogenic variant'. There is no evidence of this variant in cis or trans with another variant. Therefore, this criterion is not applied.
BP3
BP3 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for BP3 is: 'BP3 – In-frame deletions/insertions in a repetitive region without known function'. This is a missense variant, not an in-frame indel. Therefore, this criterion is not applied.
BP4
BP4 (Supporting)
According to standard ACMG guidelines, the rule for BP4 is: 'BP4 – Multiple lines of computational evidence suggest no impact on gene or gene product'. The evidence for this variant shows a REVEL score of 0.06 (below 0.15 threshold), benign predictions from CADD and PolyPhen, and no splicing impact by SpliceAI. Therefore, this criterion is applied at Supporting strength because in silico tools consistently predict a benign effect.
BP5
BP5 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for BP5 is: 'BP5 – Variant found in a case with an alternate molecular basis for disease'. No such case reports exist. Therefore, this criterion is not applied.
BP6
BP6 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for BP6 is: 'BP6 – Reputable source reports variant as benign, but without accessible evidence'. No reputable sources report this variant as benign. Therefore, this criterion is not applied.
BP7
BP7 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for BP7 is: 'BP7 – Synonymous variant with no predicted impact on splicing'. This is a missense variant, not synonymous. Therefore, this criterion is not applied.