chr9-133351937-G-A

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 2P and 13B. PM2BP4_StrongBP6_Very_StrongBP7

The NM_003172.4(SURF1):​c.879C>T​(p.Phe293=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000146 in 1,613,802 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00015 ( 0 hom. )

Consequence

SURF1
NM_003172.4 synonymous

Scores

2

Clinical Significance

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

Conservation

PhyloP100: 0.570
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 -11 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.78).
BP6
Variant 9-133351937-G-A is Benign according to our data. Variant chr9-133351937-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 456667.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=0.57 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SURF1NM_003172.4 linkuse as main transcriptc.879C>T p.Phe293= synonymous_variant 9/9 ENST00000371974.8
SURF1NM_001280787.1 linkuse as main transcriptc.552C>T p.Phe184= synonymous_variant 8/8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SURF1ENST00000371974.8 linkuse as main transcriptc.879C>T p.Phe293= synonymous_variant 9/91 NM_003172.4 P1Q15526-1
SURF1ENST00000615505.4 linkuse as main transcriptc.552C>T p.Phe184= synonymous_variant 8/81
SURF1ENST00000437995.1 linkuse as main transcriptn.789C>T non_coding_transcript_exon_variant 8/85
SURF1ENST00000495952.5 linkuse as main transcriptn.869C>T non_coding_transcript_exon_variant 5/52

Frequencies

GnomAD3 genomes
AF:
0.0000788
AC:
12
AN:
152206
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.000162
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000638
AC:
16
AN:
250724
Hom.:
0
AF XY:
0.0000442
AC XY:
6
AN XY:
135630
show subpopulations
Gnomad AFR exome
AF:
0.0000619
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000328
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000123
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000153
AC:
223
AN:
1461596
Hom.:
0
Cov.:
33
AF XY:
0.000144
AC XY:
105
AN XY:
727050
show subpopulations
Gnomad4 AFR exome
AF:
0.0000597
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000188
Gnomad4 OTH exome
AF:
0.000149
GnomAD4 genome
AF:
0.0000788
AC:
12
AN:
152206
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74362
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000162
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000831
EpiCase
AF:
0.00
EpiControl
AF:
0.000178

ClinVar

Significance: 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 submitterclinical testingGeneDxOct 17, 2019- -
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenJul 01, 2024SURF1: BP4, BP7 -
Leigh syndrome Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeDec 14, 2023- -
SURF1-related disorder Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesMay 08, 2019This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.78
CADD
Benign
0.60
DANN
Benign
0.61

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: rs145088629; hg19: chr9-136218792; API