NM_003000.3(SDHB):c.3G>A (p.Met1Ile) AND Hereditary cancer-predisposing syndrome

Clinical significance:Pathogenic (Last evaluated: Aug 24, 2017)

Review status:1 star out of maximum of 4 stars

criteria provided, single submitter

Based on:
1 submission [Details]
Record status:

Allele description [Variation Report for NM_003000.3(SDHB):c.3G>A (p.Met1Ile)]

NM_003000.3(SDHB):c.3G>A (p.Met1Ile)

SDHB:succinate dehydrogenase complex iron sulfur subunit B [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
Genomic location:
Preferred name:
NM_003000.3(SDHB):c.3G>A (p.Met1Ile)
  • NC_000001.11:g.17054017C>T
  • NG_012340.1:g.5154G>A
  • NM_003000.2:c.3G>A
  • NM_003000.3:c.3G>AMANE SELECT
  • NP_002991.2:p.Met1Ile
  • NP_002991.2:p.Met1Ile
  • LRG_316t1:c.3G>A
  • LRG_316:g.5154G>A
  • LRG_316p1:p.Met1Ile
  • NC_000001.10:g.17380512C>T
  • NC_000001.10:g.17380512C>T
Protein change:
dbSNP: rs1131691061
NCBI 1000 Genomes Browser:
Molecular consequence:
  • NM_003000.3:c.3G>A - initiatior codon variant - [Sequence Ontology: SO:0001582]
  • NM_003000.2:c.3G>A - missense variant - [Sequence Ontology: SO:0001583]
  • NM_003000.3:c.3G>A - missense variant - [Sequence Ontology: SO:0001583]


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

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Assertion and evidence details

Submission AccessionSubmitterReview Status
(Assertion method)
Clinical Significance
(Last evaluated)
SCV000581214Ambry Geneticscriteria provided, single submitter
(Aug 24, 2017)
germlineclinical testing

PubMed (4)
[See all records that cite these PMIDs]

Citation Link

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedgermlineunknown1not providednot provided1not providedclinical testing



Clinical predictors for germline mutations in head and neck paraganglioma patients: cost reduction strategy in genetic diagnostic process as fall-out.

Neumann HP, Erlic Z, Boedeker CC, Rybicki LA, Robledo M, Hermsen M, Schiavi F, Falcioni M, Kwok P, Bauters C, Lampe K, Fischer M, Edelman E, Benn DE, Robinson BG, Wiegand S, Rasp G, Stuck BA, Hoffmann MM, Sullivan M, Sevilla MA, Weiss MM, et al.

Cancer Res. 2009 Apr 15;69(8):3650-6. doi: 10.1158/0008-5472.CAN-08-4057. Epub 2009 Apr 7.

PubMed [citation]

Head and neck paragangliomas: genetic spectrum and clinical variability in 79 consecutive patients.

Piccini V, Rapizzi E, Bacca A, Di Trapani G, Pulli R, Giachè V, Zampetti B, Lucci-Cordisco E, Canu L, Corsini E, Faggiano A, Deiana L, Carrara D, Tantardini V, Mariotti S, Ambrosio MR, Zatelli MC, Parenti G, Colao A, Pratesi C, Bernini G, Ercolino T, et al.

Endocr Relat Cancer. 2012 Apr 10;19(2):149-55. doi: 10.1530/ERC-11-0369. Print 2012 Apr.

PubMed [citation]
See all PubMed Citations (4)

Details of each submission

From Ambry Genetics, SCV000581214.4

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not provided1not providednot providedclinical testing PubMed (4)


The p.M1? variant (also known as c.3G>A), located in coding exon 1 of the SDHB gene, results from a G to A substitution at nucleotide position 3. This alters the methionine residue at the initiation codon. This alteration has been detected in multiple individuals with paraganglioma and/or pheochromocytoma (Neumann HP et al. Cancer Res. 2009 Apr;69(8):3650-6; Piccini V et al. Endocr. Relat. Cancer 2012 Apr;19(2):149-55; Sjursen W et al. Fam. Cancer 2013 Sep;12(3):529-35; Papathomas TG et al. Eur. J. Endocrinol. 2014 Jan;170:1-12). In addition to the clinical data presented in the literature, since sequence variations that modify the initiation codon (ATG) are expected to result in either loss of translation initiation, N-terminal truncation, or cause a shift in the mRNA reading frame, this alteration is interpreted as a disease-causing mutation.

OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlineunknown1not providednot provided1not providednot providednot provided

Last Updated: Oct 25, 2021

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