chr9-133351795-A-G

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_003172.4(SURF1):​c.*118T>C variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0705 in 1,144,576 control chromosomes in the GnomAD database, including 3,318 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.056 ( 333 hom., cov: 33)
Exomes 𝑓: 0.073 ( 2985 hom. )

Consequence

SURF1
NM_003172.4 3_prime_UTR

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.229
Variant links:
Genes affected
SURF1 (HGNC:11474): (SURF1 cytochrome c oxidase assembly factor) This gene encodes a protein localized to the inner mitochondrial membrane and thought to be involved in the biogenesis of the cytochrome c oxidase complex. The protein is a member of the SURF1 family, which includes the related yeast protein SHY1 and rickettsial protein RP733. The gene is located in the surfeit gene cluster, a group of very tightly linked genes that do not share sequence similarity, where it shares a bidirectional promoter with SURF2 on the opposite strand. Defects in this gene are a cause of Leigh syndrome, a severe neurological disorder that is commonly associated with systemic cytochrome c oxidase deficiency. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.81).
BP6
Variant 9-133351795-A-G is Benign according to our data. Variant chr9-133351795-A-G is described in ClinVar as [Benign]. Clinvar id is 912544.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.0851 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SURF1NM_003172.4 linkuse as main transcriptc.*118T>C 3_prime_UTR_variant 9/9 ENST00000371974.8
SURF1NM_001280787.1 linkuse as main transcript downstream_gene_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SURF1ENST00000371974.8 linkuse as main transcriptc.*118T>C 3_prime_UTR_variant 9/91 NM_003172.4 P1Q15526-1
SURF1ENST00000615505.4 linkuse as main transcript downstream_gene_variant 1

Frequencies

GnomAD3 genomes
AF:
0.0563
AC:
8573
AN:
152206
Hom.:
334
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0157
Gnomad AMI
AF:
0.0285
Gnomad AMR
AF:
0.0477
Gnomad ASJ
AF:
0.0796
Gnomad EAS
AF:
0.0190
Gnomad SAS
AF:
0.0205
Gnomad FIN
AF:
0.0592
Gnomad MID
AF:
0.0538
Gnomad NFE
AF:
0.0870
Gnomad OTH
AF:
0.0602
GnomAD4 exome
AF:
0.0727
AC:
72174
AN:
992252
Hom.:
2985
Cov.:
13
AF XY:
0.0708
AC XY:
35690
AN XY:
503816
show subpopulations
Gnomad4 AFR exome
AF:
0.0126
Gnomad4 AMR exome
AF:
0.0367
Gnomad4 ASJ exome
AF:
0.0765
Gnomad4 EAS exome
AF:
0.0238
Gnomad4 SAS exome
AF:
0.0212
Gnomad4 FIN exome
AF:
0.0599
Gnomad4 NFE exome
AF:
0.0850
Gnomad4 OTH exome
AF:
0.0698
GnomAD4 genome
AF:
0.0563
AC:
8570
AN:
152324
Hom.:
333
Cov.:
33
AF XY:
0.0550
AC XY:
4094
AN XY:
74490
show subpopulations
Gnomad4 AFR
AF:
0.0157
Gnomad4 AMR
AF:
0.0477
Gnomad4 ASJ
AF:
0.0796
Gnomad4 EAS
AF:
0.0191
Gnomad4 SAS
AF:
0.0209
Gnomad4 FIN
AF:
0.0592
Gnomad4 NFE
AF:
0.0870
Gnomad4 OTH
AF:
0.0591
Alfa
AF:
0.0710
Hom.:
36
Bravo
AF:
0.0546
Asia WGS
AF:
0.0350
AC:
122
AN:
3478

ClinVar

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

Submissions by phenotype

Leigh syndrome Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 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. -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxJun 23, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.81
CADD
Benign
1.1
DANN
Benign
0.72

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: rs4962133; hg19: chr9-136218650; COSMIC: COSV59297594; COSMIC: COSV59297594; API