rs72619327

Variant summary

Our verdict is Likely pathogenic. The variant received 7 ACMG points: 7P and 0B. PM1PM2PP2PP3_Moderate

The NM_003172.4(SURF1):​c.604G>T​(p.Asp202Tyr) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,850 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. D202H) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

SURF1
NM_003172.4 missense

Scores

9
6
3

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.82

Publications

19 publications found
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]
SURF1 Gene-Disease associations (from GenCC):
  • Leigh syndrome
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Labcorp Genetics (formerly Invitae)
  • mitochondrial complex IV deficiency, nuclear type 1
    Inheritance: AR Classification: DEFINITIVE Submitted by: G2P
  • Charcot-Marie-Tooth disease type 4K
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)
  • Leigh syndrome with cardiomyopathy
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • Leigh syndrome with leukodystrophy
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 7 ACMG points.

PM1
In a hotspot region, there are 4 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 9 uncertain in NM_003172.4
PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 15 curated pathogenic missense variants (we use a threshold of 10). The gene has 2 curated benign missense variants. Gene score misZ: -0.68006 (below the threshold of 3.09). Trascript score misZ: -1.3185 (below the threshold of 3.09). GenCC associations: The gene is linked to Leigh syndrome with leukodystrophy, Leigh syndrome, mitochondrial complex IV deficiency, nuclear type 1, Charcot-Marie-Tooth disease type 4K, Leigh syndrome with cardiomyopathy.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.92

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SURF1NM_003172.4 linkc.604G>T p.Asp202Tyr missense_variant Exon 7 of 9 ENST00000371974.8 NP_003163.1 Q15526-1E5KRX5
SURF1NM_001280787.1 linkc.277G>T p.Asp93Tyr missense_variant Exon 6 of 8 NP_001267716.1 Q15526A0A087WYS9

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SURF1ENST00000371974.8 linkc.604G>T p.Asp202Tyr missense_variant Exon 7 of 9 1 NM_003172.4 ENSP00000361042.3 Q15526-1
SURF1ENST00000615505.4 linkc.277G>T p.Asp93Tyr missense_variant Exon 6 of 8 1 ENSP00000482067.1 A0A087WYS9
SURF1ENST00000437995.1 linkn.514G>T non_coding_transcript_exon_variant Exon 6 of 8 5
SURF1ENST00000495952.5 linkn.594G>T non_coding_transcript_exon_variant Exon 3 of 5 2

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD2 exomes
AF:
0.00000398
AC:
1
AN:
251146
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461850
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
727210
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.0000504
AC:
2
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86254
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53416
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5762
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111996
Other (OTH)
AF:
0.00
AC:
0
AN:
60392
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
1
1
2
2
3
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
Cov.:
33
ExAC
AF:
0.00000824
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.23
BayesDel_addAF
Uncertain
0.12
D
BayesDel_noAF
Uncertain
0.11
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.92
D;.
Eigen
Pathogenic
0.70
Eigen_PC
Pathogenic
0.69
FATHMM_MKL
Pathogenic
0.99
D
M_CAP
Pathogenic
0.44
D
MetaRNN
Pathogenic
0.92
D;D
MetaSVM
Pathogenic
0.90
D
MutationAssessor
Uncertain
2.7
M;.
PhyloP100
5.8
PrimateAI
Benign
0.38
T
PROVEAN
Pathogenic
-5.9
D;.
REVEL
Pathogenic
0.74
Sift
Uncertain
0.0020
D;.
Sift4G
Uncertain
0.0030
D;D
Polyphen
0.97
D;.
Vest4
0.63
MutPred
0.42
Loss of disorder (P = 0.0398);.;
MVP
0.94
MPC
0.17
ClinPred
0.98
D
GERP RS
5.4
Varity_R
0.78
gMVP
0.73
Mutation Taster
=72/28
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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: rs72619327; hg19: chr9-136219448; API