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Variant interpretation report

PALB2 c.2580G>T, p.(Glu860Asp)

NM_024675.4:c.2580G>T NP_078951.2:p.(Glu860Asp) View identifiers
Classification
Not classified

Variant description:

No variant summary was recorded for this case.

Five-step scale from benign to pathogenic. Select a step to read what it means.

Not classified yet.Select a step to read what it means.

In plain language

Gene-level background from the recorded interpretation.

About PALB2

No gene-level summary was recorded for this case.

LYFE Sciences is an AI system, and it can make mistakes. Criteria may be applied incorrectly, sources may be misread, and a confident-looking classification can still be wrong. Double-check every criterion and its underlying evidence before relying on any call.
01The reasoning

How it was classified

The recorded framework is ClinGen PALB2 VCEP v1.2.0. The criteria and strengths shown below come from the saved assessment; this page does not recalculate the classification.

Recorded applied criteria

The applied criteria and their strengths are shown as assessed under the stated framework.

Pathogenic evidence criteria: 1 Benign evidence criteria: 1
Pathogenic criteria applied · 1
PM2Supporting
PM2 · supporting

Variant is absent from gnomAD v2.1 (exomes) and gnomAD v4.1 (exomes). Meets VCEP PM2_Supporting threshold (frequency ≤ 0.000333% in gnomAD v4).

Benign criteria applied · 1
BP1Supporting
BP1 · supporting

VCEP PALB2 specification: BP1 applies to all missense variants at supporting benign strength. PALB2 has a low rate of missense variants that are non-functional in relevant assays, and true missense pathogenic variants are thought to be exceedingly rare.

Recorded classification: Not classified

Richards et.al., 2015 - Combining rules v1.2.0 criteria-combination framework: matched Rule31 (Benign.Supporting >=1 + Pathogenic.Supporting >=1) with applied criteria: PM2 supporting, BP1 supporting benign; maps to Uncertain Significance - Conflicting Evidence.

02The sources

Evidence at a glance

Evidence summaries and captured source records, where available. Missing entries should not be interpreted as negative findings.

SpliceAI score
0.010 maximum delta

Recorded SpliceAI maximum delta score: 0.010. Refer to the recorded PP3/BP4 rationale for interpretation.

No listed criterion applied SpliceAI ↗
ClinVar submissions
5 reported laboratory submissions

4 Uncertain significance · 1 Likely benign.

Context only ClinVar ↗
Functional evidence
Statement recorded

OncoKB did not identify variant-specific reviewed functional evidence for this variant; gene-level curated context is available for reviewer follow-up. PALB2, a scaffolding protein involved in DNA repair, is altered in various cancers.

No listed criterion applied OncoKB ↗
COSMIC
Cancer Hotspots
Somatic evidence
No matching record reported

This variant has not previously been reported in somatic cancers (COSMIC).

Cancer Hotspots

This variant does not lie in a statistically significant hotspot.

For specialists

Technical detail

ACMG/AMP criteria under ClinGen PALB2 VCEP v1.2.0, with the data and sources behind each one.

27 criteria with recorded statuses: 2 met · 2 not met · 5 not assessed · 18 not applicable. Open any row for the full reasoning, the rule and the evidence behind it.

Met Not met Not assessed Not applicable

NM_024675.4:c.2580G>T (p.Glu860Asp) is a missense variant in PALB2, a gene where loss of function is an established mechanism of disease but missense pathogenicity is not yet confirmed.

The variant is absent from gnomAD v2.1 and v4.1, meeting the VCEP PM2_Supporting criterion (frequency ≤ 0.000333%).

Per VCEP PALB2 specification, BP1_Supporting is applied to all missense variants given the very low likelihood that missense variants in PALB2 are pathogenic.

Multiple VCEP criteria are not applicable to missense variants in PALB2: PVS1, PS1, PM1, PM5, PP2, PP3, BP4. Additional criteria (PS3, BS3, PS2, PM6, PP4, PP5, BP2, BP5, BP6) are not applicable per VCEP specification.

SpliceAI predicts no splice impact (max delta 0.01). REVEL score (0.021) and BayesDel score (-0.521846) are consistent with a benign computational prediction for the missense change, though not formally applied as criteria per VCEP rules.

ClinVar reports this variant as Uncertain significance (4 clinical laboratories) and Likely benign (1 clinical laboratory). No expert panel classification is available.

With PM2_Supporting (1 pathogenic supporting point) and BP1_Supporting (1 benign supporting point), the variant falls into the Uncertain Significance category per ACMG/AMP 2015 combination rules (Rule 31: conflicting supporting evidence).

Met · 2

PM2 SupportingVariant is absent from gnomAD v2.1 (exomes) and gnomAD v4.1 (exomes). Meets VCEP PM2_Supporting threshold (frequency ≤ 0.000333% in gnomAD v4). Details ▾Hide ▴
Evidence considered
  • Absent from gnomAD v2.1
  • absent from gnomAD v4.1
  • frequency 0% ≤ 0.000333% VCEP threshold.
Sources
BP1 SupportingVCEP PALB2 specification: BP1 applies to all missense variants at supporting benign strength. PALB2 has a low rate of missense variants that are non-functional in relevant assays, and true missense pathogenic variants are thought to be exceedingly rare. Details ▾Hide ▴
Evidence considered
  • VCEP rule: 'Apply to all missense variants.' NM_024675.4:c.2580G>T is a missense variant (p.Glu860Asp).
Sources

Not met · 2 · evaluated, threshold not reached

BA1 Variant is absent from gnomAD v4.1. Does not meet the VCEP BA1 threshold (Grpmax Filtering AF >0.1% in gnomAD v4). Details ▾Hide ▴
Evidence considered
  • Absent from gnomAD v4.1
  • AF 0% does not exceed BA1 threshold of >0.1%.
Sources
BS1 Variant is absent from gnomAD v4.1. Does not meet the VCEP BS1 threshold (Grpmax Filtering AF >0.01% in gnomAD v4). Details ▾Hide ▴
Evidence considered
  • Absent from gnomAD v4.1
  • AF 0% does not exceed BS1 threshold of >0.01%.
Sources

Not assessed · 5 · no assessment recorded

PS4 VCEP requires case-control studies with p≤0.05 AND (OR≥3 OR lower 95% CI ≥1.5). No case-control study meeting this threshold has been identified for this variant. ClinVar reports 5 clinical laboratory submissions (4 VUS, 1 likely benign) but no case-control data. Details ▾Hide ▴
Evidence considered
  • VCEP PS4 threshold not met
  • no case-control study with required statistical significance identified.
Still missing
  • No case-control study available for NM_024675.4:c.2580G>T meeting VCEP PS4_Strong criteria.
Sources
PP1 No co-segregation data available for this variant. VCEP requires quantitative co-segregation analysis (LOD scores or Bayes Factors for AD condition) or affected relative counts for AR condition. Details ▾Hide ▴
Evidence considered
  • No segregation data identified for NM_024675.4:c.2580G>T.
Still missing
  • No co-segregation data available to meet VCEP PP1 thresholds.
Sources
BS2 VCEP BS2 requires Fanconi Anemia proband points from BS2 tables. No Fanconi Anemia proband data available for this variant. Details ▾Hide ▴
Evidence considered
  • No Fanconi Anemia proband data available to assign BS2 points.
Still missing
  • No Fanconi Anemia proband data for BS2 point assignment.
Sources
BS4 VCEP BS4 requires quantitative co-segregation analysis (LOD scores or Bayes Factors). No segregation data available for this variant. Details ▾Hide ▴
Evidence considered
  • No segregation data available to meet VCEP BS4 quantitative thresholds.
Still missing
  • No co-segregation data for BS4 LOD/Bayes Factor calculation.
Sources
PS5 No pathogenic missense variant has been established at codon Glu860 in PALB2. Insufficient evidence to apply PS5 (same amino acid change as established pathogenic variant). Details ▾Hide ▴
Evidence considered
  • No ClinVar expert-panel pathogenic or likely pathogenic missense variant identified at Glu860.
Still missing
  • No established pathogenic missense at Glu860 for PS5 comparison.
Sources
pm5_candidates
Not applicable · 18· recorded as not applicable Show reasons ▾Hide reasons ▴
PVS1 N/AMissense variant (p.Glu860Asp); does not meet PVS1 null-variant criteria (nonsense, frameshift, canonical splice ±1,2). PALB2 PVS1 Decision Tree applies to null variants, not missense substitutions. Details ▾Hide ▴
Evidence considered
  • Missense variant in PALB2
  • variant bucket 'other' per PVS1 assessment
  • no null-variant mechanism.
Sources
pvs1_variant_assessmentcspec ↗
PS1 N/AVCEP PALB2 specification: PS1 is not used for missense variants. Missense changes are not yet confirmed as a mechanism of disease for PALB2. Details ▾Hide ▴
Evidence considered
  • VCEP rule: 'Missense: Do not use. Missense changes are not yet confirmed as a mechanism of disease for PALB2.'
Sources
PS2 VCEPVCEP PALB2 specification: PS2 is not applicable. Informative de novo occurrences have not yet been observed for autosomal dominant PALB2-related disease. Details ▾Hide ▴
Evidence considered
  • VCEP rule: PS2 not applicable for AD or AR PALB2 disease.
Sources
PS3 VCEPVCEP PALB2 specification: PS3 is not applicable for protein-level functional studies. Color Health submission notes 'functional studies have not been performed for this variant.' Details ▾Hide ▴
Evidence considered
  • VCEP rule: PS3 not applicable for PALB2 missense
  • no variant-specific functional studies identified.
Sources
PM1 VCEPVCEP PALB2 specification: PM1 is not applicable. Missense pathogenic variation in PALB2 is not yet confirmed as a mechanism of disease. Details ▾Hide ▴
Evidence considered
  • VCEP rule: 'Do not use: Missense pathogenic variation in PALB2 is not yet confirmed as a mechanism of disease.'
Sources
PM5 N/AVCEP PALB2 specification: PM5 is restricted to frameshifting or truncating variants with premature termination codons upstream of p.Tyr1183, or splice variants with NMD-prone PTCs. Not applicable to missense variants. Details ▾Hide ▴
Evidence considered
  • VCEP rule: 'Do not use for missense changes: Missense changes are not yet confirmed as a mechanism of disease for PALB2.' PM5 candidate search confirmed not applicable.
Sources
PM6 VCEPVCEP PALB2 specification: PM6 is not applicable. Informative de novo occurrences have not yet been observed for PALB2-related disease. Details ▾Hide ▴
Evidence considered
  • VCEP rule: PM6 not applicable for AD or AR PALB2 disease.
Sources
PP2 VCEPVCEP PALB2 specification: PP2 is not applicable. Missense is not yet confirmed or refuted as a mechanism of disease for PALB2. Details ▾Hide ▴
Evidence considered
  • VCEP rule: 'Do not use. Missense is not yet confirmed or refuted as a mechanism of disease for PALB2.'
Sources
PP3 N/AVCEP PALB2 specification: PP3 is not used for missense variants. PP3 applies only to splicing predictions (SpliceAI ≥0.2). SpliceAI max delta score is 0.01, which does not meet the splicing threshold. REVEL score 0.021 and BayesDel score -0.521846 are consistent with a benign computational prediction but are not applied under VCEP rules. Details ▾Hide ▴
Evidence considered
  • VCEP rule: PP3 not for missense
  • SpliceAI max delta 0.01 < 0.2
  • REVEL 0.021
  • BayesDel -0.521846.
Sources
PP4 VCEPVCEP PALB2 specification: PP4 is not applicable. Breast cancer has multiple genetic etiologies and no features readily distinguish hereditary from sporadic causes. Details ▾Hide ▴
Evidence considered
  • VCEP rule: PP4 not applicable for AD PALB2 disorder.
Sources
PP5 VCEPVCEP PALB2 specification: PP5 is not for use as recommended by the ClinGen Sequence Variant Interpretation VCEP Review Committee. Details ▾Hide ▴
Evidence considered
  • VCEP rule: PP5 not applicable for this VCEP.
Sources
BS3 VCEPVCEP PALB2 specification: BS3 is not applicable for protein-level functional studies. No variant-specific benign functional evidence identified. Details ▾Hide ▴
Evidence considered
  • VCEP rule: BS3 not applicable for PALB2 missense functional studies.
Sources
BP2 VCEPVCEP PALB2 specification: BP2 is not applicable. Uses ATM PM3/BP2 table; not relevant for PALB2. Details ▾Hide ▴
Evidence considered
  • VCEP rule: BP2 not applicable for PALB2.
Sources
BP3 VCEPSkipped per case directive; substitution variant, not an in-frame deletion/insertion. Details ▾Hide ▴
Evidence considered
  • Substitution variant
  • BP3 applies to in-frame deletions/insertions in repetitive regions.
BP4 N/AVCEP PALB2 specification: BP4 is not used for missense variants. Published predictors have yet to achieve reliable functional outcome prediction for PALB2 missense variants. SpliceAI max delta 0.01 is ≤0.1 but BP4 is explicitly not applicable to missense variants. Details ▾Hide ▴
Evidence considered
  • VCEP rule: 'Missense: Do not use.' SpliceAI max delta 0.01 indicates no predicted splice impact.
Sources
BP5 VCEPVCEP PALB2 specification: BP5 is not applicable. Cases with multiple pathogenic variants have been observed with no noticeable difference in phenotype; PALB2 has moderate penetrance. Details ▾Hide ▴
Evidence considered
  • VCEP rule: BP5 not applicable for PALB2.
Sources
BP6 VCEPVCEP PALB2 specification: BP6 is not for use as recommended by the ClinGen Sequence Variant Interpretation VCEP Review Committee. Details ▾Hide ▴
Evidence considered
  • VCEP rule: BP6 not applicable for this VCEP.
Sources
BP7 N/ABP7 is restricted to synonymous and deep intronic variants beyond +7 (donor) and -21 (acceptor). NM_024675.4:c.2580G>T is a missense variant in exon 6; BP7 does not apply. Details ▾Hide ▴
Evidence considered
  • Missense variant in coding exon
  • BP7 applies only to synonymous and deep intronic variants.
Sources

Identifiers

Gene
PALB2
Transcript
NM_024675.4
Coding (HGVS c.)
NM_024675.4:c.2580G>T
Protein (HGVS p.)
NP_078951.2:p.(Glu860Asp)
GRCh38
chr16:23629210 C>A
GRCh37
chr16:23640531 C>A
ClinVar
484223

Gene diagram

Every interpreted variant in PALB2, mapped onto the exon structure of NM_024675.4. Select a row to find it on the plot.

PALB2NM_024675.4
Fetching transcript structure from UCSC…
gnomAD v4.1 Allele count data not recorded
gnomAD v2.1 Allele count data not recorded
gnomAD-Canada v1.0 Allele count data not recorded

Statements

gnomAD v4.1

Absent from gnomAD v4.1.

gnomAD v2.1

Absent from gnomAD v2.1.

gnomAD-Canada

Not available in gnomAD-Canada v1.0.

SpliceAI and Pangolin

SpliceAI acceptor lossat -190 bp
0.000
SpliceAI acceptor gainat +65 bp
0.010
SpliceAI donor lossat -118 bp
0.000
SpliceAI donor gainat -6 bp
0.010
Pangolin splice lossmagnitude shown
-0.010
Pangolin splice gain
0.030

Other predictors

REVEL
0.021
BayesDel
-0.522

How the predictions were used

PP3 N/AVCEP PALB2 specification: PP3 is not used for missense variants. PP3 applies only to splicing predictions (SpliceAI ≥0.2). SpliceAI max delta score is 0.01, which does not meet the splicing threshold. REVEL score 0.021 and BayesDel score -0.521846 are consistent with a benign computational prediction but are not applied under VCEP rules. Details ▾Hide ▴
Evidence considered
  • VCEP rule: PP3 not for missense
  • SpliceAI max delta 0.01 < 0.2
  • REVEL 0.021
  • BayesDel -0.521846.
Sources
BP4 N/AVCEP PALB2 specification: BP4 is not used for missense variants. Published predictors have yet to achieve reliable functional outcome prediction for PALB2 missense variants. SpliceAI max delta 0.01 is ≤0.1 but BP4 is explicitly not applicable to missense variants. Details ▾Hide ▴
Evidence considered
  • VCEP rule: 'Missense: Do not use.' SpliceAI max delta 0.01 indicates no predicted splice impact.
Sources
BP7 N/ABP7 is restricted to synonymous and deep intronic variants beyond +7 (donor) and -21 (acceptor). NM_024675.4:c.2580G>T is a missense variant in exon 6; BP7 does not apply. Details ▾Hide ▴
Evidence considered
  • Missense variant in coding exon
  • BP7 applies only to synonymous and deep intronic variants.
Sources

Statement

In silico

SpliceAI predicts no significant splice impact for this variant (max delta score = 0.01). REVEL score = 0.021. BayesDel score = -0.521846.

7 paper records listed. No publication is explicitly linked to an applied criterion in the recorded metadata. None of the listed paper records explicitly indicates that the variant is named.

Recorded publications

  • Risk assessment and genetic counseling for hereditary breast and ovarian cancer: recommendations of the National Society of Genetic Counselors.
    Berliner JL et al. · 2007
    Risk assessment and genetic counseling for hereditary breast and ovarian cancer: recommendations of the National Society of Genetic Counselors. General practice guideline for BRCA-related cancer.
    Does not name this variant
    PMID 17508274 ↗
  • Summaries for patients. Assessing the genetic risk for BRCA-related breast or ovarian cancer in women: recommendations from the U.S. Preventive Services Task Force.
    2014
    Summaries for patients: assessing the genetic risk for BRCA-related breast or ovarian cancer in women. Patient-level summary of USPSTF recommendations.
    Does not name this variant
    PMID 24366402 ↗
  • PMID 24432435
    Nelson HD et al. · 2013
    No paper-specific finding is recorded.
    PMID 24432435 ↗
  • Standards and guidelines for the interpretation of sequence variants: a joint co
    Standards and guidelines for the interpretation of sequence variants — a joint consensus recommendation of ACMG and AMP. Provides the generic ACMG/AMP classification framework used as reference.
    Does not name this variant
    PMID 25741868 ↗
  • Sherloc: a comprehensive refinement of the ACMG-AMP variant classification crite
    Sherloc: a comprehensive refinement of the ACMG-AMP variant classification criteria. Describes a systematic refinement of variant classification rules.
    Does not name this variant
    PMID 28492532 ↗
  • Risk Assessment, Genetic Counseling, and Genetic Testing for BRCA-Related Cancer
    Risk assessment, genetic counseling, and genetic testing for BRCA-related cancer: US Preventive Services Task Force recommendation statement.
    Does not name this variant
    PMID 31429903 ↗
  • PMID 31479213
    No paper-specific finding is recorded.
    PMID 31479213 ↗

Screenshots represent source records captured during evidence collection. Select one to view the recorded source content.

All source links

Statements for reports

The evidence statements recorded by the interpretation pipeline. They have not been reinterpreted by the page.

gnomAD v4.1

Absent from gnomAD v4.1.

gnomAD v2.1

Absent from gnomAD v2.1.

gnomAD-Canada

Not available in gnomAD-Canada v1.0.

ClinVar

This variant has been reported in ClinVar as Uncertain significance (4 clinical laboratories) and as Likely benign (1 clinical laboratory). (ClinVarID = 484223)

In silico

SpliceAI predicts no significant splice impact for this variant (max delta score = 0.01). REVEL score = 0.021. BayesDel score = -0.521846.

Functional

OncoKB did not identify variant-specific reviewed functional evidence for this variant; gene-level curated context is available for reviewer follow-up. PALB2, a scaffolding protein involved in DNA repair, is altered in various cancers.

Somatic

This variant does not lie in a statistically significant hotspot. This variant has not previously been reported in somatic cancers (COSMIC).

Cancer Hotspots

This variant does not lie in a statistically significant hotspot.