rs757444247
Variant summary
Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6
The NM_024675.4(PALB2):c.3202-9C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000229 in 1,612,706 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_024675.4 intron
Scores
Clinical Significance
Conservation
Publications
- hereditary breast carcinomaInheritance: AD Classification: DEFINITIVE Submitted by: ClinGen, Ambry Genetics
- Fanconi anemia complementation group NInheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), ClinGen, Ambry Genetics
- pancreatic cancer, susceptibility to, 3Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
- familial ovarian cancerInheritance: AD Classification: MODERATE Submitted by: ClinGen
- Fanconi anemiaInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
- hereditary nonpolyposis colon cancerInheritance: AD Classification: LIMITED Submitted by: ClinGen
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ACMG classification
Our verdict: Likely_benign. The variant received -5 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| PALB2 | NM_024675.4 | c.3202-9C>T | intron_variant | Intron 11 of 12 | ENST00000261584.9 | NP_078951.2 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| PALB2 | ENST00000261584.9 | c.3202-9C>T | intron_variant | Intron 11 of 12 | 1 | NM_024675.4 | ENSP00000261584.4 |
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 151962Hom.: 0 Cov.: 31 show subpopulations
GnomAD2 exomes AF: 0.0000279 AC: 7AN: 251236 AF XY: 0.0000221 show subpopulations
GnomAD4 exome AF: 0.0000233 AC: 34AN: 1460744Hom.: 0 Cov.: 31 AF XY: 0.0000261 AC XY: 19AN XY: 726792 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000197 AC: 3AN: 151962Hom.: 0 Cov.: 31 AF XY: 0.0000135 AC XY: 1AN XY: 74214 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Uncertain:1Benign:1
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The c.3202-9C>T intronic alteration consists of a C to T substitution 9 nucleotides before coding exon 12 in the PALB2 gene. Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Familial cancer of breast Benign:2
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This variant is considered benign. This variant is intronic and is not expected to impact mRNA splicing. This variant is strongly associated with less severe personal and family histories of cancer, typical for individuals without pathogenic variants in this gene [PMID: 25085752]. -
not specified Benign:1
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Pancreatic cancer, susceptibility to, 3 Benign:1
The PALB2 c.3202-9C>T variant was not identified in the literature nor was it identified in LOVD 3.0. The variant was identified in dbSNP (ID: rs757444247) as “With Likely benign” allele, and in ClinVar (classified likely benign by Invitae, GeneDx, and Color). The variant was identified in control databases in 8 of 246052 chromosomes at a frequency of 0.00003 (Genome Aggregation Database Feb 27, 2017) in the following populations: European Non-Finnish in 1 of 111588 chromosomes (freq: 0.000009), East Asian in 2 of 17236 chromosomes (freq: 0.0001), and South Asian in 5 of 30764 chromosomes (freq: 0.0002), but not in the African, Other, Latino, Ashkenazi Jewish, and Finnish populations. The c.3202-9C>T variant is located in the 3' splice region but does not affect the invariant -1 and -2 positions. Positions -3 and -5 to -12 are part of the splicing consensus sequence and variants involving these positions sometimes affect splicing; however, in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer) do not predict a difference in splicing. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time although we would lean towards a more benign role for this variant. This variant is classified as likely benign. -
not provided Benign:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at