2-84423539-T-C

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The ENST00000393868.7(SUCLG1):​c.*207A>G variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00249 in 616,118 control chromosomes in the GnomAD database, including 20 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0073 ( 15 hom., cov: 33)
Exomes 𝑓: 0.00091 ( 5 hom. )

Consequence

SUCLG1
ENST00000393868.7 3_prime_UTR

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 1.16
Variant links:
Genes affected
SUCLG1 (HGNC:11449): (succinate-CoA ligase GDP/ADP-forming subunit alpha) This gene encodes the alpha subunit of the heterodimeric enzyme succinate coenzyme A ligase. This enzyme is targeted to the mitochondria and catalyzes the conversion of succinyl CoA and ADP or GDP to succinate and ATP or GTP. Mutations in this gene are the cause of the metabolic disorder fatal infantile lactic acidosis and mitochondrial DNA depletion. [provided by RefSeq, Feb 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.77).
BP6
Variant 2-84423539-T-C is Benign according to our data. Variant chr2-84423539-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 337148.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00729 (1111/152308) while in subpopulation AFR AF= 0.026 (1081/41558). AF 95% confidence interval is 0.0247. There are 15 homozygotes in gnomad4. There are 520 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 15 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SUCLG1NM_003849.4 linkuse as main transcriptc.*207A>G 3_prime_UTR_variant 9/9 ENST00000393868.7 NP_003840.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SUCLG1ENST00000393868.7 linkuse as main transcriptc.*207A>G 3_prime_UTR_variant 9/91 NM_003849.4 ENSP00000377446 P1
SUCLG1ENST00000484365.1 linkuse as main transcriptn.1756A>G non_coding_transcript_exon_variant 2/22
SUCLG1ENST00000491123.5 linkuse as main transcript downstream_gene_variant 3
SUCLG1ENST00000651342.1 linkuse as main transcript downstream_gene_variant ENSP00000498471

Frequencies

GnomAD3 genomes
AF:
0.00726
AC:
1105
AN:
152192
Hom.:
15
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0259
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00335
GnomAD4 exome
AF:
0.000914
AC:
424
AN:
463810
Hom.:
5
Cov.:
4
AF XY:
0.000774
AC XY:
191
AN XY:
246826
show subpopulations
Gnomad4 AFR exome
AF:
0.0269
Gnomad4 AMR exome
AF:
0.00116
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000425
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000328
Gnomad4 OTH exome
AF:
0.00175
GnomAD4 genome
AF:
0.00729
AC:
1111
AN:
152308
Hom.:
15
Cov.:
33
AF XY:
0.00698
AC XY:
520
AN XY:
74488
show subpopulations
Gnomad4 AFR
AF:
0.0260
Gnomad4 AMR
AF:
0.00131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00331
Alfa
AF:
0.00603
Hom.:
2
Bravo
AF:
0.00843
Asia WGS
AF:
0.00289
AC:
10
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Likely benign, criteria provided, single submitterclinical testingGeneDxJun 14, 2018- -
Mitochondrial DNA depletion syndrome Benign:1
Likely benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJun 14, 2016- -
Mitochondrial DNA depletion syndrome 9 Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 12, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.77
CADD
Benign
7.6
DANN
Benign
0.74

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs73942653; hg19: chr2-84650663; API