NM_000077.5(CDKN2A):c.320G>C (p.Arg107Pro) AND Familial melanoma

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: Dec 24, 2023
Review status:: 1 star out of maximum of 4 stars
criteria provided, single submitter

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:: RCV001856123.5

Allele description [Variation Report for NM_000077.5(CDKN2A):c.320G>C (p.Arg107Pro)]

NM_000077.5(CDKN2A):c.320G>C (p.Arg107Pro)

Gene:

CDKN2A:cyclin dependent kinase inhibitor 2A [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

9p21.3

Genomic location:

Preferred name:

NM_000077.5(CDKN2A):c.320G>C (p.Arg107Pro)

HGVS:

NC_000009.12:g.21971039C>G
NG_007485.1:g.28453G>C
NM_000077.5:c.320G>CMANE SELECT
NM_001195132.2:c.320G>C
NM_001363763.2:c.167G>C
NM_058195.4:c.363G>C
NM_058197.5:c.*243G>C
NP_000068.1:p.Arg107Pro
NP_000068.1:p.Arg107Pro
NP_001182061.1:p.Arg107Pro
NP_001350692.1:p.Arg56Pro
NP_478102.2:p.Ala121=
LRG_11t1:c.320G>C
LRG_11:g.28453G>C
LRG_11p1:p.Arg107Pro
NC_000009.11:g.21971038C>G
NM_000077.4:c.320G>C

Protein change:

R107P

Links:

dbSNP: rs370823171

NCBI 1000 Genomes Browser:

rs370823171

Molecular consequence:

NM_058197.5:c.*243G>C - 3 prime UTR variant - [Sequence Ontology: SO:0001624]
NM_000077.5:c.320G>C - missense variant - [Sequence Ontology: SO:0001583]
NM_001195132.2:c.320G>C - missense variant - [Sequence Ontology: SO:0001583]
NM_001363763.2:c.167G>C - missense variant - [Sequence Ontology: SO:0001583]
NM_058195.4:c.363G>C - synonymous variant - [Sequence Ontology: SO:0001819]

Condition(s)

Name:: Familial melanoma
Synonyms:: Hereditary melanoma; Hereditary cutaneous melanoma
Identifiers:: MONDO: MONDO:0018961; MedGen: C1512419

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV002255752	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Dec 24, 2023)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV002255752

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Dec 24, 2023)

germline

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

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

Details of each submission

From Labcorp Genetics (formerly Invitae), Labcorp, SCV002255752.3

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

Description

This sequence change replaces arginine, which is basic and polar, with proline, which is neutral and non-polar, at codon 107 of the CDKN2A (p16INK4a) protein (p.Arg107Pro). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with CDKN2A (p16INK4a)-related conditions. ClinVar contains an entry for this variant (Variation ID: 630455). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant¬†is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.

#	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

Last Updated: Sep 29, 2024

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