NM_003000.3(SDHB):c.496G>C (p.Gly166Arg) AND multiple conditions

This record was updated by the submitter. Please see the current version.

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: Dec 30, 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:: RCV003807951.1

Allele description

NM_003000.3(SDHB):c.496G>C (p.Gly166Arg)

Gene:

SDHB:succinate dehydrogenase complex iron sulfur subunit B [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

1p36.13

Genomic location:

Preferred name:

NM_003000.3(SDHB):c.496G>C (p.Gly166Arg)

HGVS:

NC_000001.11:g.17027793C>G
NG_012340.1:g.31378G>C
NM_001407361.1:c.442G>C
NM_003000.3:c.496G>CMANE SELECT
NP_001394290.1:p.Gly148Arg
NP_002991.2:p.Gly166Arg
NP_002991.2:p.Gly166Arg
LRG_316t1:c.496G>C
LRG_316:g.31378G>C
LRG_316p1:p.Gly166Arg
NC_000001.10:g.17354288C>G
NM_003000.2:c.496G>C

Protein change:

G148R

Molecular consequence:

NM_001407361.1:c.442G>C - missense variant - [Sequence Ontology: SO:0001583]
NM_003000.3:c.496G>C - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: Gastrointestinal stromal tumor
Synonyms:: Gastrointestinal Stromal Sarcoma; Gastrointestinal stromal tumor, somatic; Gastrointestinal stroma tumor
Identifiers:: MONDO: MONDO:0011719; MeSH: D046152; MedGen: C0238198; Orphanet: 44890; OMIM: 606764; Human Phenotype Ontology: HP:0100723

Name:: Paragangliomas 4 (PPGL4)
Synonyms:: CAROTID BODY TUMORS AND MULTIPLE EXTRAADRENAL PHEOCHROMOCYTOMAS; Pheochromocytoma, extraadrenal and cervical paraganglioma; Paragangliomas, hereditary extraadrenal; See all synonyms [MedGen]
Identifiers:: MONDO: MONDO:0007273; MedGen: C1861848; Orphanet: 29072; OMIM: 115310

Name:: Pheochromocytoma
Synonyms:: Chromaffinoma; Chromaffin paraganglioma; Chromaffin tumor; See all synonyms [MedGen]
Identifiers:: MONDO: MONDO:0008233; MedGen: C0031511; Orphanet: 29072; OMIM: 171300; Human Phenotype Ontology: HP:0002666

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV004593164	Invitae	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Dec 30, 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

SCV004593164

Invitae

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Dec 30, 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 Invitae, SCV004593164.1

#	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 not present in population databases (gnomAD no frequency). This sequence change replaces glycine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 166 of the SDHB protein (p.Gly166Arg). This variant has not been reported in the literature in individuals affected with SDHB-related conditions. 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. 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 expected to disrupt SDHB protein function.

#	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 16, 2024

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