NM_000038.6(APC):c.6952A>G (p.Ser2318Gly) AND Hereditary cancer-predisposing syndrome

Germline classification:: Conflicting interpretations of pathogenicity (2 submissions)
Last evaluated:: May 4, 2023
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:: RCV000563979.16

Allele description [Variation Report for NM_000038.6(APC):c.6952A>G (p.Ser2318Gly)]

NM_000038.6(APC):c.6952A>G (p.Ser2318Gly)

Gene:

APC:APC regulator of WNT signaling pathway [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

5q22.2

Genomic location:

Preferred name:

NM_000038.6(APC):c.6952A>G (p.Ser2318Gly)

HGVS:

NC_000005.10:g.112842546A>G
NG_008481.4:g.155026A>G
NM_000038.6:c.6952A>GMANE SELECT
NM_001127510.3:c.6952A>G
NM_001127511.3:c.6898A>G
NM_001354895.2:c.6952A>G
NM_001354896.2:c.7006A>G
NM_001354897.2:c.6982A>G
NM_001354898.2:c.6877A>G
NM_001354899.2:c.6868A>G
NM_001354900.2:c.6829A>G
NM_001354901.2:c.6775A>G
NM_001354902.2:c.6679A>G
NM_001354903.2:c.6649A>G
NM_001354904.2:c.6574A>G
NM_001354905.2:c.6472A>G
NM_001354906.2:c.6103A>G
NP_000029.2:p.Ser2318Gly
NP_001120982.1:p.Ser2318Gly
NP_001120983.2:p.Ser2300Gly
NP_001341824.1:p.Ser2318Gly
NP_001341825.1:p.Ser2336Gly
NP_001341826.1:p.Ser2328Gly
NP_001341827.1:p.Ser2293Gly
NP_001341828.1:p.Ser2290Gly
NP_001341829.1:p.Ser2277Gly
NP_001341830.1:p.Ser2259Gly
NP_001341831.1:p.Ser2227Gly
NP_001341832.1:p.Ser2217Gly
NP_001341833.1:p.Ser2192Gly
NP_001341834.1:p.Ser2158Gly
NP_001341835.1:p.Ser2035Gly
LRG_130:g.155026A>G
NC_000005.9:g.112178243A>G
NM_000038.5:c.6952A>G

Protein change:

S2035G

Links:

dbSNP: rs747056590

NCBI 1000 Genomes Browser:

rs747056590

Molecular consequence:

NM_000038.6:c.6952A>G - missense variant - [Sequence Ontology: SO:0001583]
NM_001127510.3:c.6952A>G - missense variant - [Sequence Ontology: SO:0001583]
NM_001127511.3:c.6898A>G - missense variant - [Sequence Ontology: SO:0001583]
NM_001354895.2:c.6952A>G - missense variant - [Sequence Ontology: SO:0001583]
NM_001354896.2:c.7006A>G - missense variant - [Sequence Ontology: SO:0001583]
NM_001354897.2:c.6982A>G - missense variant - [Sequence Ontology: SO:0001583]
NM_001354898.2:c.6877A>G - missense variant - [Sequence Ontology: SO:0001583]
NM_001354899.2:c.6868A>G - missense variant - [Sequence Ontology: SO:0001583]
NM_001354900.2:c.6829A>G - missense variant - [Sequence Ontology: SO:0001583]
NM_001354901.2:c.6775A>G - missense variant - [Sequence Ontology: SO:0001583]
NM_001354902.2:c.6679A>G - missense variant - [Sequence Ontology: SO:0001583]
NM_001354903.2:c.6649A>G - missense variant - [Sequence Ontology: SO:0001583]
NM_001354904.2:c.6574A>G - missense variant - [Sequence Ontology: SO:0001583]
NM_001354905.2:c.6472A>G - missense variant - [Sequence Ontology: SO:0001583]
NM_001354906.2:c.6103A>G - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: Hereditary cancer-predisposing syndrome
Synonyms:: Neoplastic Syndromes, Hereditary; Tumor predisposition; Cancer predisposition; See all synonyms [MedGen]
Identifiers:: MONDO: MONDO:0015356; MeSH: D009386; MedGen: C0027672

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV000667442	Ambry Genetics	criteria provided, single submitter (Ambry Variant Classification Scheme 2023)	Likely benign (Aug 15, 2022)	germline	clinical testing	Citation Link,
SCV000909623	Color Diagnostics, LLC DBA Color Health	criteria provided, single submitter (ACMG Guidelines, 2015)	Uncertain significance (May 4, 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

SCV000667442

Ambry Genetics

criteria provided, single submitter

(Ambry Variant Classification Scheme 2023)

Likely benign
(Aug 15, 2022)

germline

clinical testing

Citation Link,

SCV000909623

Color Diagnostics, LLC DBA Color Health

criteria provided, single submitter

(ACMG Guidelines, 2015)

Uncertain significance
(May 4, 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

Standards and guidelines for the interpretation of sequence variants: a joint consensus recommendation of the American College of Medical Genetics and Genomics and the Association for Molecular Pathology.

Richards S, Aziz N, Bale S, Bick D, Das S, Gastier-Foster J, Grody WW, Hegde M, Lyon E, Spector E, Voelkerding K, Rehm HL; ACMG Laboratory Quality Assurance Committee..

Genet Med. 2015 May;17(5):405-24. doi: 10.1038/gim.2015.30. Epub 2015 Mar 5.

PubMed [citation]

PMID:: 25741868
PMCID:: PMC4544753

Details of each submission

From Ambry Genetics, SCV000667442.5

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

Description

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity.

#	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 Color Diagnostics, LLC DBA Color Health, SCV000909623.4

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

Description

This missense variant replaces serine with glycine at codon 2318 of the APC protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with APC-related disorders in the literature. This variant has been identified in 4/250906 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	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

Last Updated: Nov 3, 2024

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