NM_006642.5(SDCCAG8):c.1176G>A (p.Met392Ile) AND multiple conditions

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: May 11, 2022
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:: RCV002814530.2

Allele description [Variation Report for NM_006642.5(SDCCAG8):c.1176G>A (p.Met392Ile)]

NM_006642.5(SDCCAG8):c.1176G>A (p.Met392Ile)

Gene:

SDCCAG8:SHH signaling and ciliogenesis regulator SDCCAG8 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

1q43

Genomic location:

Preferred name:

NM_006642.5(SDCCAG8):c.1176G>A (p.Met392Ile)

HGVS:

NC_000001.11:g.243330647G>A
NG_027811.1:g.79643G>A
NM_001350246.2:c.273G>A
NM_001350247.2:c.273G>A
NM_001350248.2:c.1272G>A
NM_001350249.2:c.882G>A
NM_001350251.2:c.273G>A
NM_006642.5:c.1176G>AMANE SELECT
NP_001337175.1:p.Met91Ile
NP_001337176.1:p.Met91Ile
NP_001337177.1:p.Met424Ile
NP_001337178.1:p.Met294Ile
NP_001337180.1:p.Met91Ile
NP_006633.1:p.Met392Ile
NC_000001.10:g.243493949G>A

Protein change:

M294I

Links:

dbSNP: rs1367586020

NCBI 1000 Genomes Browser:

rs1367586020

Molecular consequence:

NM_001350246.2:c.273G>A - missense variant - [Sequence Ontology: SO:0001583]
NM_001350247.2:c.273G>A - missense variant - [Sequence Ontology: SO:0001583]
NM_001350248.2:c.1272G>A - missense variant - [Sequence Ontology: SO:0001583]
NM_001350249.2:c.882G>A - missense variant - [Sequence Ontology: SO:0001583]
NM_001350251.2:c.273G>A - missense variant - [Sequence Ontology: SO:0001583]
NM_006642.5:c.1176G>A - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: Senior-Loken syndrome 7 (SLSN7)
Identifiers:: MONDO: MONDO:0013326; MedGen: C3150877; Orphanet: 3156; OMIM: 613615

Name:: Bardet-Biedl syndrome 16 (BBS16)
Identifiers:: MONDO: MONDO:0014444; MedGen: C3889474; Orphanet: 110; OMIM: 615993

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV003197259	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (May 11, 2022)	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

SCV003197259

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(May 11, 2022)

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, SCV003197259.1

#	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 methionine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 392 of the SDCCAG8 protein (p.Met392Ile). This variant is present in population databases (no rsID available, gnomAD 0.0009%). This variant has not been reported in the literature in individuals affected with SDCCAG8-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest 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: May 16, 2025

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