NM_024675.4(PALB2):c.995T>A (p.Leu332His) AND Familial cancer of breast

Germline classification:: Conflicting interpretations of pathogenicity (6 submissions)
Last evaluated:: Mar 27, 2024
Review status:: criteria provided, conflicting classifications

Somatic classification of clinical impact:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Somatic classification of oncogenicity:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Record status:: current
Accession:: RCV000199494.19

Allele description [Variation Report for NM_024675.4(PALB2):c.995T>A (p.Leu332His)]

NM_024675.4(PALB2):c.995T>A (p.Leu332His)

Gene:

PALB2:partner and localizer of BRCA2 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

16p12.2

Genomic location:

Preferred name:

NM_024675.4(PALB2):c.995T>A (p.Leu332His)

HGVS:

NC_000016.10:g.23635551A>T
NG_007406.1:g.10807T>A
NM_024675.4:c.995T>AMANE SELECT
NP_078951.2:p.Leu332His
NP_078951.2:p.Leu332His
LRG_308t1:c.995T>A
LRG_308:g.10807T>A
LRG_308p1:p.Leu332His
NC_000016.9:g.23646872A>T
NM_024675.3:c.995T>A
p.L332H

Protein change:

L332H

Links:

dbSNP: rs377149139

NCBI 1000 Genomes Browser:

rs377149139

Molecular consequence:

NM_024675.4:c.995T>A - missense variant - [Sequence Ontology: SO:0001583]

Observations:

Condition(s)

Name:: Familial cancer of breast
Synonyms:: Breast cancer, familial; Hereditary breast cancer
Identifiers:: MONDO: MONDO:0016419; MedGen: C0346153; OMIM: 114480

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV000255120	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Likely benign (Jan 6, 2024)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV000488627	Counsyl	criteria provided, single submitter (Counsyl Autosomal Dominant Disease Classification criteria (2015))	Uncertain significance (May 11, 2016)	unknown	clinical testing	PubMed (1) [See all records that cite this PMID] Counsyl Autosomal Dominant Disease Classification criteria (2015), Citation Link,
SCV001193048	Leiden Open Variation Database	no assertion criteria provided	Uncertain significance (May 13, 2019)	germline	curation	PubMed (1) [See all records that cite this PMID]
SCV003930442	KCCC/NGS Laboratory, Kuwait Cancer Control Center	criteria provided, single submitter (ACMG Guidelines, 2015)	Uncertain significance (Jun 14, 2023)	unknown	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV004019096	Myriad Genetics, Inc.	criteria provided, single submitter (Myriad Autosomal Dominant, Autosomal Recessive and X-Linked Classification Criteria (2023))	Likely benign (Mar 30, 2023)	unknown	clinical testing	PubMed (1) [See all records that cite this PMID] Citation Link,
SCV004202059	Baylor Genetics	criteria provided, single submitter (ACMG Guidelines, 2015)	Uncertain significance (Mar 27, 2024)	unknown	clinical testing	PubMed (1) [See all records that cite this PMID]

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing
not provided	unknown	yes	1	not provided	not provided	not provided	not provided	clinical testing
not provided	germline	no	not provided	not provided	not provided	not provided	not provided	curation
not provided	unknown	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

Sherloc: a comprehensive refinement of the ACMG-AMP variant classification criteria.

Nykamp K, Anderson M, Powers M, Garcia J, Herrera B, Ho YY, Kobayashi Y, Patil N, Thusberg J, Westbrook M; Invitae Clinical Genomics Group., Topper S.

Genet Med. 2017 Oct;19(10):1105-1117. doi: 10.1038/gim.2017.37. Epub 2017 May 11. Erratum in: Genet Med. 2020 Jan;22(1):240. doi: 10.1038/s41436-019-0624-9.

PubMed [citation]

PMID:: 28492532
PMCID:: PMC5632818

Frequency of mutations in individuals with breast cancer referred for BRCA1 and BRCA2 testing using next-generation sequencing with a 25-gene panel.

Tung N, Battelli C, Allen B, Kaldate R, Bhatnagar S, Bowles K, Timms K, Garber JE, Herold C, Ellisen L, Krejdovsky J, DeLeonardis K, Sedgwick K, Soltis K, Roa B, Wenstrup RJ, Hartman AR.

Cancer. 2015 Jan 1;121(1):25-33. doi: 10.1002/cncr.29010. Epub 2014 Sep 3.

PubMed [citation]

PMID:: 25186627

See all PubMed Citations (4)

Details of each submission

From Labcorp Genetics (formerly Invitae), Labcorp, SCV000255120.11

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Counsyl, SCV000488627.2

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	unknown	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Leiden Open Variation Database, SCV001193048.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	curation	PubMed (1)

Description

Curators: Marc Tischkowitz, Arleen D. Auerbach. Submitters to LOVD: Andreas Laner, Marc Tischkowitz.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	no	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From KCCC/NGS Laboratory, Kuwait Cancer Control Center, SCV003930442.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1		1	not provided	not provided	clinical testing	PubMed (1)

Description

a variant of uncertain significance was detected in the PALB2 gene (c.995T>A).This missense variant replaces leucine with histidine at codon 332 of the PALB2 protein.ClinVar contains an entry for this variant (Variation ID: 143019) with five submitter as uncertain significant .This variant has also been identified in 5/250756 chromosomes in the general population by the Genome Aggregation Database (gnomAD). Computational prediction suggests that this variant may not impact protein structure and function . This variant has been reported in individuals affected with breast cancer (PMID: 35402282, 25186627). This variant has also been identified in 5/250756 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	unknown	yes	not provided	not provided	not provided		1	not provided	not provided	not provided

From Myriad Genetics, Inc., SCV004019096.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

Description

This variant is considered likely benign. 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].

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	unknown	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Baylor Genetics, SCV004202059.2

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	unknown	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

Last Updated: Oct 8, 2024

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