NM_022464.5(SIL1):c.1231C>G (p.Arg411Gly) AND Marinesco-Sjögren syndrome

Germline classification:: Uncertain significance (2 submissions)
Last evaluated:: Oct 5, 2023
Review status:: 2 stars out of maximum of 4 stars
criteria provided, multiple submitters, no conflicts

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:: RCV003136693.5

Allele description [Variation Report for NM_022464.5(SIL1):c.1231C>G (p.Arg411Gly)]

NM_022464.5(SIL1):c.1231C>G (p.Arg411Gly)

Gene:

SIL1:SIL1 nucleotide exchange factor [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

5q31.2

Genomic location:

Preferred name:

NM_022464.5(SIL1):c.1231C>G (p.Arg411Gly)

HGVS:

NC_000005.10:g.138947272G>C
NG_008112.2:g.256105C>G
NM_001037633.2:c.1231C>G
NM_022464.5:c.1231C>GMANE SELECT
NP_001032722.1:p.Arg411Gly
NP_071909.1:p.Arg411Gly
NC_000005.9:g.138282961G>C
NM_022464.4:c.1231C>G

Protein change:

R411G

Molecular consequence:

NM_001037633.2:c.1231C>G - missense variant - [Sequence Ontology: SO:0001583]
NM_022464.5:c.1231C>G - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: Marinesco-Sjögren syndrome (MSS)
Synonyms:: Marinesco-Garland Syndrome; Marinesco-Sjogren Syndrome-Hypergonadotrophic Hypogonadism; Marinesco-Sjogren Syndrome-Myopathy; See all synonyms [MedGen]
Identifiers:: MONDO: MONDO:0009567; MedGen: C0024814; Orphanet: 559; OMIM: 248800

Recent activity

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PREDICTED: Benincasa hispida UPF0496 protein At2g18630-like (LOC120088363), mRNA
PREDICTED: Benincasa hispida UPF0496 protein At2g18630-like (LOC120088363), mRNA
gi|1955824982|ref|XM_039045590.1|

Nucleotide

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV003823251	Revvity Omics, Revvity	criteria provided, single submitter (ACMG Guidelines, 2015)	Uncertain significance (Oct 6, 2020)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV004290897	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Oct 5, 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

SCV003823251

Revvity Omics, Revvity

criteria provided, single submitter

(ACMG Guidelines, 2015)

Uncertain significance
(Oct 6, 2020)

germline

clinical testing

PubMed (1)
[See all records that cite this PMID]

SCV004290897

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Oct 5, 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

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 Revvity Omics, Revvity, SCV003823251.2

#	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	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Labcorp Genetics (formerly Invitae), Labcorp, SCV004290897.1

#	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 arginine, which is basic and polar, with glycine, which is neutral and non-polar, at codon 411 of the SIL1 protein (p.Arg411Gly). This variant is present in population databases (rs142943842, gnomAD 0.0009%). This variant has not been reported in the literature in individuals affected with SIL1-related conditions. ClinVar contains an entry for this variant (Variation ID: 2435943). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt SIL1 protein function. 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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