9-133351933-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 4P and 1B. PM1PM2BP4

The NM_003172.4(SURF1):​c.883C>A​(p.Arg295Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,218 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R295C) has been classified as Benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

SURF1
NM_003172.4 missense

Scores

5
13

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.81
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM1
In a chain Surfeit locus protein 1 (size 299) in uniprot entity SURF1_HUMAN there are 17 pathogenic changes around while only 2 benign (89%) in NM_003172.4
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.3316298).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SURF1NM_003172.4 linkuse as main transcriptc.883C>A p.Arg295Ser missense_variant 9/9 ENST00000371974.8 NP_003163.1 Q15526-1E5KRX5
SURF1NM_001280787.1 linkuse as main transcriptc.556C>A p.Arg186Ser missense_variant 8/8 NP_001267716.1 Q15526A0A087WYS9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SURF1ENST00000371974.8 linkuse as main transcriptc.883C>A p.Arg295Ser missense_variant 9/91 NM_003172.4 ENSP00000361042.3 Q15526-1
SURF1ENST00000615505.4 linkuse as main transcriptc.556C>A p.Arg186Ser missense_variant 8/81 ENSP00000482067.1 A0A087WYS9
SURF1ENST00000437995.1 linkuse as main transcriptn.793C>A non_coding_transcript_exon_variant 8/85
SURF1ENST00000495952.5 linkuse as main transcriptn.873C>A non_coding_transcript_exon_variant 5/52

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152218
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.00
Gnomad OTH
AF:
0.000478
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1461544
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
727016
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152218
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74378
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.00
Gnomad4 OTH
AF:
0.000478
Bravo
AF:
0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.19
BayesDel_addAF
Uncertain
0.029
T
BayesDel_noAF
Benign
-0.20
CADD
Benign
12
DANN
Benign
0.92
DEOGEN2
Uncertain
0.55
D;.
Eigen
Benign
-0.61
Eigen_PC
Benign
-0.61
FATHMM_MKL
Benign
0.52
D
M_CAP
Uncertain
0.26
D
MetaRNN
Benign
0.33
T;T
MetaSVM
Uncertain
-0.038
T
MutationAssessor
Benign
1.5
L;.
PrimateAI
Benign
0.29
T
PROVEAN
Benign
-1.9
N;.
REVEL
Uncertain
0.29
Sift
Benign
0.057
T;.
Sift4G
Benign
0.086
T;T
Polyphen
0.19
B;.
Vest4
0.14
MutPred
0.68
Loss of MoRF binding (P = 2e-04);.;
MVP
0.91
MPC
0.028
ClinPred
0.49
T
GERP RS
4.4
Varity_R
0.11
gMVP
0.76

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs147312193; hg19: chr9-136218788; API