rs558084375

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_213595.4(ISCU):​c.10G>C​(p.Ala4Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00528 in 1,473,674 control chromosomes in the GnomAD database, including 42 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. A4A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0036 ( 0 hom., cov: 35)
Exomes 𝑓: 0.0055 ( 42 hom. )

Consequence

ISCU
NM_213595.4 missense

Scores

5
12

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:6

Conservation

PhyloP100: 1.60

Publications

3 publications found
Variant links:
Genes affected
ISCU (HGNC:29882): (iron-sulfur cluster assembly enzyme) This gene encodes a component of the iron-sulfur (Fe-S) cluster scaffold. Fe-S clusters are cofactors that play a role in the function of a diverse set of enzymes, including those that regulate metabolism, iron homeostasis, and oxidative stress response. Alternative splicing results in transcript variants encoding different protein isoforms that localize either to the cytosol or to the mitochondrion. Mutations in this gene have been found in patients with hereditary myopathy with lactic acidosis. A disease-associated mutation in an intron may activate a cryptic splice site, resulting in the production of a splice variant encoding a putatively non-functional protein. A pseudogene of this gene is present on chromosome 1. [provided by RefSeq, Feb 2016]
ISCU Gene-Disease associations (from GenCC):
  • mitochondrial disease
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • hereditary myopathy with lactic acidosis due to ISCU deficiency
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.009756267).
BP6
Variant 12-108562632-G-C is Benign according to our data. Variant chr12-108562632-G-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 214555.
BS2
High Homozygotes in GnomAdExome4 at 42 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_213595.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ISCU
NM_213595.4
MANE Select
c.10G>Cp.Ala4Pro
missense
Exon 1 of 5NP_998760.1Q9H1K1-1
ISCU
NM_001301141.1
c.10G>Cp.Ala4Pro
missense
Exon 1 of 6NP_001288070.1B3KQ30
ISCU
NM_001301140.1
c.10G>Cp.Ala4Pro
missense
Exon 1 of 6NP_001288069.1B3KQ30

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ISCU
ENST00000311893.14
TSL:1 MANE Select
c.10G>Cp.Ala4Pro
missense
Exon 1 of 5ENSP00000310623.9Q9H1K1-1
ISCU
ENST00000392807.8
TSL:1
c.-162G>C
5_prime_UTR
Exon 1 of 6ENSP00000376554.4Q9H1K1-2
ISCU
ENST00000539580.5
TSL:1
n.10G>C
non_coding_transcript_exon
Exon 1 of 7ENSP00000437854.1F5H672

Frequencies

GnomAD3 genomes
AF:
0.00365
AC:
556
AN:
152242
Hom.:
0
Cov.:
35
show subpopulations
Gnomad AFR
AF:
0.000796
Gnomad AMI
AF:
0.00110
Gnomad AMR
AF:
0.000720
Gnomad ASJ
AF:
0.000864
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00393
Gnomad FIN
AF:
0.00630
Gnomad MID
AF:
0.00318
Gnomad NFE
AF:
0.00606
Gnomad OTH
AF:
0.00430
GnomAD2 exomes
AF:
0.00197
AC:
189
AN:
95794
AF XY:
0.00200
show subpopulations
Gnomad AFR exome
AF:
0.00116
Gnomad AMR exome
AF:
0.000904
Gnomad ASJ exome
AF:
0.00173
Gnomad EAS exome
AF:
0.000200
Gnomad FIN exome
AF:
0.00253
Gnomad NFE exome
AF:
0.00256
Gnomad OTH exome
AF:
0.000391
GnomAD4 exome
AF:
0.00547
AC:
7227
AN:
1321316
Hom.:
42
Cov.:
27
AF XY:
0.00533
AC XY:
3468
AN XY:
650944
show subpopulations
African (AFR)
AF:
0.000554
AC:
15
AN:
27082
American (AMR)
AF:
0.00103
AC:
29
AN:
28062
Ashkenazi Jewish (ASJ)
AF:
0.00230
AC:
52
AN:
22630
East Asian (EAS)
AF:
0.0000329
AC:
1
AN:
30374
South Asian (SAS)
AF:
0.00436
AC:
307
AN:
70480
European-Finnish (FIN)
AF:
0.00461
AC:
149
AN:
32356
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4484
European-Non Finnish (NFE)
AF:
0.00611
AC:
6426
AN:
1050988
Other (OTH)
AF:
0.00452
AC:
248
AN:
54860
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.459
Heterozygous variant carriers
0
279
558
836
1115
1394
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
258
516
774
1032
1290
<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
AF:
0.00365
AC:
556
AN:
152358
Hom.:
0
Cov.:
35
AF XY:
0.00384
AC XY:
286
AN XY:
74496
show subpopulations
African (AFR)
AF:
0.000793
AC:
33
AN:
41596
American (AMR)
AF:
0.000719
AC:
11
AN:
15308
Ashkenazi Jewish (ASJ)
AF:
0.000864
AC:
3
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5176
South Asian (SAS)
AF:
0.00393
AC:
19
AN:
4830
European-Finnish (FIN)
AF:
0.00630
AC:
67
AN:
10630
Middle Eastern (MID)
AF:
0.00342
AC:
1
AN:
292
European-Non Finnish (NFE)
AF:
0.00606
AC:
412
AN:
68026
Other (OTH)
AF:
0.00425
AC:
9
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.502
Heterozygous variant carriers
0
29
58
88
117
146
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00304
Hom.:
3
Bravo
AF:
0.00317
ExAC
AF:
0.00157
AC:
161
Asia WGS
AF:
0.00145
AC:
5
AN:
3472

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
4
not provided (5)
-
1
1
Hereditary myopathy with lactic acidosis due to ISCU deficiency (2)
-
-
1
ISCU-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.14
BayesDel_addAF
Benign
-0.15
T
BayesDel_noAF
Uncertain
0.010
CADD
Benign
21
DANN
Uncertain
0.98
DEOGEN2
Benign
0.081
T
Eigen
Benign
-0.15
Eigen_PC
Benign
-0.087
FATHMM_MKL
Benign
0.16
N
LIST_S2
Benign
0.63
T
MetaRNN
Benign
0.0098
T
MetaSVM
Benign
-0.58
T
MutationAssessor
Benign
0.0
N
PhyloP100
1.6
PrimateAI
Uncertain
0.77
T
PROVEAN
Benign
-0.75
N
REVEL
Benign
0.27
Sift
Uncertain
0.0060
D
Sift4G
Uncertain
0.040
D
Polyphen
0.27
B
Vest4
0.53
MVP
0.75
MPC
0.45
ClinPred
0.069
T
GERP RS
4.4
PromoterAI
-0.086
Neutral
Varity_R
0.33
gMVP
0.76
Mutation Taster
=291/9
polymorphism

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

Other links and lift over

dbSNP: rs558084375; hg19: chr12-108956408; COSMIC: COSV104561477; COSMIC: COSV104561477; API