rs201472512

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBS1_Supporting

The NM_003002.4(SDHD):​c.*822T>C variant causes a splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00122 in 200,232 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.0013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0011 ( 0 hom. )

Consequence

SDHD
NM_003002.4 splice_region

Scores

2

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 0.508

Publications

0 publications found
Variant links:
Genes affected
SDHD (HGNC:10683): (succinate dehydrogenase complex subunit D) This gene encodes a member of complex II of the respiratory chain, which is responsible for the oxidation of succinate. The encoded protein is one of two integral membrane proteins anchoring the complex to the matrix side of the mitochondrial inner membrane. Mutations in this gene are associated with the formation of tumors, including hereditary paraganglioma. Transmission of disease occurs almost exclusively through the paternal allele, suggesting that this locus may be maternally imprinted. There are pseudogenes for this gene on chromosomes 1, 2, 3, 7, and 18. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2013]
SDHD Gene-Disease associations (from GenCC):
  • hereditary pheochromocytoma-paraganglioma
    Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: ClinGen, Orphanet
  • pheochromocytoma
    Inheritance: AD Classification: DEFINITIVE Submitted by: G2P
  • pheochromocytoma/paraganglioma syndrome 1
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P
  • Carney-Stratakis syndrome
    Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Orphanet
  • mitochondrial complex II deficiency, nuclear type 1
    Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • renal cell carcinoma
    Inheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
  • mitochondrial complex 2 deficiency, nuclear type 3
    Inheritance: AR Classification: MODERATE Submitted by: Ambry Genetics
  • mitochondrial complex II deficiency
    Inheritance: AR Classification: MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet
  • Cowden disease
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • intestinal cancer
    Inheritance: AD Classification: LIMITED Submitted by: G2P
  • mitochondrial disease
    Inheritance: AR Classification: LIMITED Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.81).
BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.00126 (192/152280) while in subpopulation NFE AF = 0.00212 (144/68026). AF 95% confidence interval is 0.00183. There are 0 homozygotes in GnomAd4. There are 104 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SDHDNM_003002.4 linkc.*822T>C splice_region_variant Exon 4 of 4 ENST00000375549.8 NP_002993.1 O14521-1A0A0S2Z4J3
SDHDNM_003002.4 linkc.*822T>C 3_prime_UTR_variant Exon 4 of 4 ENST00000375549.8 NP_002993.1 O14521-1A0A0S2Z4J3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SDHDENST00000375549.8 linkc.*822T>C splice_region_variant Exon 4 of 4 1 NM_003002.4 ENSP00000364699.3 O14521-1
SDHDENST00000375549.8 linkc.*822T>C 3_prime_UTR_variant Exon 4 of 4 1 NM_003002.4 ENSP00000364699.3 O14521-1
ENSG00000255292ENST00000532699.1 linkn.314+6781T>C intron_variant Intron 3 of 5 3 ENSP00000456434.1 H3BRW5

Frequencies

GnomAD3 genomes
AF:
0.00127
AC:
193
AN:
152162
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00274
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.00212
Gnomad OTH
AF:
0.000479
GnomAD4 exome
AF:
0.00111
AC:
53
AN:
47952
Hom.:
0
Cov.:
0
AF XY:
0.000804
AC XY:
18
AN XY:
22400
show subpopulations
African (AFR)
AF:
0.000480
AC:
1
AN:
2082
American (AMR)
AF:
0.00
AC:
0
AN:
1300
Ashkenazi Jewish (ASJ)
AF:
0.00221
AC:
7
AN:
3166
East Asian (EAS)
AF:
0.00
AC:
0
AN:
6990
South Asian (SAS)
AF:
0.00
AC:
0
AN:
412
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
28
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
298
European-Non Finnish (NFE)
AF:
0.00148
AC:
44
AN:
29688
Other (OTH)
AF:
0.000251
AC:
1
AN:
3988
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.461
Heterozygous variant carriers
0
2
4
7
9
11
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00126
AC:
192
AN:
152280
Hom.:
0
Cov.:
33
AF XY:
0.00140
AC XY:
104
AN XY:
74474
show subpopulations
African (AFR)
AF:
0.000120
AC:
5
AN:
41572
American (AMR)
AF:
0.0000654
AC:
1
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00288
AC:
10
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5194
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4828
European-Finnish (FIN)
AF:
0.00274
AC:
29
AN:
10590
Middle Eastern (MID)
AF:
0.00340
AC:
1
AN:
294
European-Non Finnish (NFE)
AF:
0.00212
AC:
144
AN:
68026
Other (OTH)
AF:
0.000474
AC:
1
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.522
Heterozygous variant carriers
0
12
24
36
48
60
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00217
Hom.:
0
Bravo
AF:
0.000824

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Uncertain:1
Oct 14, 2013
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The *822T>C variant in SDHD has not been previously reported in individuals with pheochromocytomas or paragangliomas. Data from large population studies is insu fficient to estimate its frequency, though it has been listed in dbSNP without f requency information (rs201472512). This variant is located in the 3' untranslat ed region (3' UTR). While this region may contain important regulatory sequences , no pathogenic variants in the SDHD gene have been reported in this region. Add itional information is needed to fully assess the clinical significance of this variant. -

Pheochromocytoma Uncertain:1
Jun 14, 2016
Illumina Laboratory Services, Illumina
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.81
CADD
Benign
5.5
DANN
Benign
0.80
PhyloP100
0.51
Mutation Taster
=100/0
polymorphism

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

Publications

Other links and lift over

dbSNP: rs201472512; hg19: chr11-111966516; API