PMS2 c.903+10A>T, p.?

NM_000535.7:c.903+10A>T
Likely Benign
The intronic PMS2 c.903+10A>T variant is absent from population databases, shows no predicted splicing impact, and is reported as likely benign. Application of one pathogenic supporting (PM2) and three benign supporting criteria (BP4, BP6, BP7) with no pathogenic or strong benign evidence yields a final classification of Likely Benign.
ACMG/AMP Criteria Applied
PM2 BP4 BP6 BP7

Genetic Information

Gene & Transcript Details
Gene
PMS2
Transcript
NM_000535.7 MANE Select
Total Exons
15
Strand
Reverse (−)
Reference Sequence
NC_000007.13
Alternative Transcripts
IDStatusDetails
NM_000535.6 Alternative 15 exons | Reverse
NM_000535.4 Alternative 15 exons | Reverse
NM_000535.5 Alternative 15 exons | Reverse
NM_000535.3 Alternative 15 exons | Reverse
Variant Details
HGVS Notation
NM_000535.7:c.903+10A>T
Protein Change
?
Location
Exon 8 (Exon 8 of 15)
8
5'Exon Structure (15 total)3'
Functional Consequence
Loss of Function
Related Variants
Variant interpretation based on transcript NM_000535.7

Genome Browser

UCSC Genome Browser hg19/GRCh37
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HGVS InputNM_000535:c.903+10A>T
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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 2026-01-23T14:23:07.041629
Classification
Likely Benign
Based on 2 submitter reviews in ClinVar
Submitter Breakdown
2 LB
Pathogenic
Likely Path.
VUS
Likely Benign
Benign
Publications (0)
No publication details.
Clinical Statement
This variant has been reported in ClinVar as Likely benign (2 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
Functional Studies & Therapeutic Relevance
Functional Summary
The PMS2 903+10A>T variant has not been functionally characterized.
Database Previews
OncoKB
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JAX-CKB
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Computational Analysis

Pathogenicity Predictions
Predictor Consensus
Mixed/VUS
PP3 Applied
No
Additional Predictors
Benign:
CADD: -0.60
SpliceAI Scores Window: ±500bp
Effect TypeScorePosition
-Acceptor Loss
0.02
109 bp
-Donor Loss
0.0
10 bp
+Acceptor Gain
0.0
14 bp
+Donor Gain
0.0
-327 bp
High impact (≥0.5)
Medium impact (0.2-0.49)
Low impact (<0.2)

VCEP Guidelines

Applied ACMG/AMP Criteria (VCEP Specific) VCEP Guidelines
PVS1
PVS1 (Not Applied) Strength Modified
According to VCEP guidelines, the rule for PVS1 is: "Variants at IVS±1 or IVS±2 where exon skipping or use of a cryptic splice site disrupts reading frame and is predicted to undergo NMD." The evidence for this variant shows it is at position +10, outside of IVS±1 or IVS±2. Therefore, this criterion is not applied.
PS1
PS1 (Not Applied) Strength Modified
According to VCEP guidelines, the rule for PS1 is: "Variants affecting the same non-canonical splice nucleotide as a confirmed pathogenic splice variant with similar or worse splicing in silico prediction using SpliceAI." The evidence for this variant shows it is at +10, not affecting a known non-canonical splice nucleotide. Therefore, this criterion is not applied.
PS2
PS2 (Not Applied) Strength Modified
According to VCEP guidelines, the rule for PS2 is: "De novo points: ≥4 de novo points for Very Strong, 2–3 for Strong, 1 for Moderate, 0.5 for Supporting." There are no de novo data available for this variant. Therefore, this criterion is not applied.
PS3
PS3 (Not Applied) Strength Modified
According to VCEP guidelines, the rule for PS3 is: "Strong: Calibrated functional assays with functional odds for Pathogenicity >18.7; Moderate/Supporting with lower thresholds." No functional assay data exist 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: "Prevalence in affected individuals statistically increased over controls." No case-control or cohort data are available. Therefore, this criterion is not applied.
PM1
PM1 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for PM1 is: "Located in a mutational hot spot or functional domain without benign variation." The variant is intronic outside known functional motifs. Therefore, this criterion is not applied.
PM2
PM2 (Supporting) Strength Modified
According to VCEP guidelines, the rule for PM2 is: "Supporting: Absent/extremely rare (<1 in 50,000 alleles) in gnomAD v4 dataset." The evidence shows the variant is absent from gnomAD. Therefore, this criterion is applied at Supporting strength.
PM3
PM3 (Not Applied) Strength Modified
According to VCEP guidelines, the rule for PM3 is: "Evidence for recessive inheritance based on allelic observations." No trans observations in recessive cases are available. Therefore, this criterion is not applied.
PM4
PM4 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for PM4 is: "Protein length changes due to in-frame indels or stop-loss." This intronic variant does not alter protein length. Therefore, this criterion is not applied.
PM5
PM5 (Not Applied) Strength Modified
According to VCEP guidelines, the rule for PM5 is: "Missense change at a residue with a different pathogenic missense." This variant is intronic. Therefore, this criterion is not applied.
PM6
PM6 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for PM6 is: "Unconfirmed de novo occurrence." No parental data exist. Therefore, this criterion is not applied.
PP1
PP1 (Not Applied) Strength Modified
According to VCEP guidelines, the rule for PP1 is: "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: "Missense in a gene with low rate of benign missense variants." This variant is intronic. Therefore, this criterion is not applied.
PP3
PP3 (Not Applied) Strength Modified
According to VCEP guidelines, the rule for PP3 is: "Supporting: Predicted splice defect for non-canonical splice nucleotides using SpliceAI delta score ≥0.2." SpliceAI predicts a delta score of 0.02. Therefore, this criterion is not applied.
PP4
PP4 (Not Applied) Strength Modified
According to VCEP guidelines, the rule for PP4 is: "Phenotype specificity with multiple independent tumors or protein loss patterns." No tumor or phenotype data are available. Therefore, this criterion is not applied.
PP5
PP5 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for PP5 is: "Reputable source reports variant as pathogenic." The variant is reported benign, not pathogenic. Therefore, this criterion is not applied.
BA1
BA1 (Not Applied) Strength Modified
According to VCEP guidelines, the rule for BA1 is: "GnomAD v4 Grpmax filtering allele frequency ≥0.0028." The allele frequency is 0%. Therefore, this criterion is not applied.
BS1
BS1 (Not Applied) Strength Modified
According to VCEP guidelines, the rule for BS1 is: "GnomAD v4 Grpmax filtering allele frequency ≥0.0001 and <0.001." The allele frequency is 0%. Therefore, this criterion is not applied.
BS2
BS2 (Not Applied) Strength Modified
According to VCEP guidelines, the rule for BS2 is: "Co-occurrence in trans with a known pathogenic variant in the same gene in LS cases without CMMRD." No such co-occurrence data are available. Therefore, this criterion is not applied.
BS3
BS3 (Not Applied) Strength Modified
According to VCEP guidelines, the rule for BS3 is: "Strong: Synonymous/intronic variants with no mRNA aberration in laboratory assays." No laboratory splicing assays have been performed. Therefore, this criterion is not applied.
BS4
BS4 (Not Applied) Strength Modified
According to VCEP guidelines, the rule for BS4 is: "Lack of co-segregation with disease in families." No segregation data exist. Therefore, this criterion is not applied.
BP1
BP1 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for BP1 is: "Missense variant in a gene where only truncating variants cause disease." This variant is intronic. Therefore, this criterion is not applied.
BP2
BP2 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for BP2 is: "Observed in trans with a pathogenic variant for a dominant disorder." No data are available. Therefore, this criterion is not applied.
BP3
BP3 (Not Applied) Strength Modified
According to standard ACMG guidelines, the rule for BP3 is: "In-frame deletions/insertions in repetitive regions." This variant is not an indel. Therefore, this criterion is not applied.
BP4
BP4 (Supporting)
According to VCEP guidelines, the rule for BP4 is: "Supporting: For intronic variants, SpliceAI predicts no impact with delta score ≤0.1." SpliceAI gives 0.02. Therefore, this criterion is applied at Supporting strength.
BP5
BP5 (Not Applied) Strength Modified
According to VCEP guidelines, the rule for BP5 is: "Observations in cases with an alternate molecular basis for disease." No such cases are reported. Therefore, this criterion is not applied.
BP6
BP6 (Supporting)
According to standard ACMG guidelines, the rule for BP6 is: "Reputable source reports variant as benign without available evidence." ClinVar entries report this variant as Likely Benign. Therefore, this criterion is applied at Supporting strength.
BP7
BP7 (Supporting)
According to VCEP guidelines, the rule for BP7 is: "Supporting: A synonymous or intronic variant at or beyond -21/+7." This variant is at +10. Therefore, this criterion is applied at Supporting strength.