chr11-61437962-G-C

Variant names:

• chr11-61437962-G-C
• rs879647
• NM_017841.4:c.261-42G>C

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_017841.4(SDHAF2):​c.261-42G>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 30)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: SDHAF2 NM_017841.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.538
• Publications: 11 publications found

Genes affected

SDHAF2 (HGNC:26034): (succinate dehydrogenase complex assembly factor 2) This gene encodes a mitochondrial assembly factor needed for the flavination of a succinate dehydrogenase complex subunit (SDHA), which is required for activity of the succinate dehydrogenase complex. Mutations in this gene are associated with paraganglioma. [provided by RefSeq, May 2022]

SDHAF2 Gene-Disease associations (from GenCC):

• hereditary pheochromocytoma-paraganglioma

  Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
• pheochromocytoma/paraganglioma syndrome 2

  Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P

ENSG00000256591 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.83).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_017841.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SDHAF2	NM_017841.4	MANE Select	c.261-42G>C		intron	N/A	NP_060311.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SDHAF2	ENST00000301761.7	TSL:1 MANE Select	c.261-42G>C		intron	N/A	ENSP00000301761.3
	ENSG00000256591	ENST00000541135.5	TSL:4	c.261-42G>C		intron	N/A	ENSP00000443130.1
	SDHAF2	ENST00000713963.1		c.354-42G>C		intron	N/A	ENSP00000519256.1

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome Data not reliable, filtered out with message: AC0;AS_VQSR AF: 0.00 AC: 0 AN: 1440052 Hom.: 0 Cov.: 26 AF XY: 0.00 AC XY: 0 AN XY: 717770

African (AFR) AF: 0.00 AC: 0 AN: 32938

American (AMR) AF: 0.00 AC: 0 AN: 44646

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25990

East Asian (EAS) AF: 0.00 AC: 0 AN: 39612

South Asian (SAS) AF: 0.00 AC: 0 AN: 85766

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52990

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5154

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1093358

Other (OTH) AF: 0.00 AC: 0 AN: 59598

GnomAD4 genome Cov.: 30

Alfa AF: 0.00 Hom.: 10046

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.83
CADD	Benign	2.5
DANN	Benign	0.59
PhyloP100		0.54

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs879647; hg19: chr11-61205434;