rs148398789

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001010867.4(IBA57):​c.462C>A​(p.His154Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000343 in 1,458,426 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 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. H154P) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

IBA57
NM_001010867.4 missense

Scores

18

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.112

Publications

0 publications found
Variant links:
Genes affected
IBA57 (HGNC:27302): (iron-sulfur cluster assembly factor IBA57) The protein encoded by this gene localizes to the mitochondrion and is part of the iron-sulfur cluster assembly pathway. The encoded protein functions late in the biosynthesis of mitochondrial 4Fe-4S proteins. Defects in this gene have been associated with autosomal recessive spastic paraplegia-74 and with multiple mitochondrial dysfunctions syndrome-3. Two transcript variants encoding different isoforms have been found for this gene. The smaller isoform is not likely to be localized to the mitochondrion since it lacks the amino-terminal transit peptide. [provided by RefSeq, Jul 2015]
IBA57 Gene-Disease associations (from GenCC):
  • mitochondrial disease
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • multiple mitochondrial dysfunctions syndrome 3
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Orphanet
  • hereditary spastic paraplegia 74
    Inheritance: AR Classification: SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.051852465).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001010867.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
IBA57
NM_001010867.4
MANE Select
c.462C>Ap.His154Gln
missense
Exon 2 of 3NP_001010867.1
IBA57
NM_001310327.2
c.-118C>A
5_prime_UTR
Exon 2 of 3NP_001297256.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
IBA57
ENST00000366711.4
TSL:2 MANE Select
c.462C>Ap.His154Gln
missense
Exon 2 of 3ENSP00000355672.3
IBA57
ENST00000484749.5
TSL:5
n.2462C>A
non_coding_transcript_exon
Exon 2 of 3
IBA57
ENST00000546123.2
TSL:2
n.182C>A
non_coding_transcript_exon
Exon 2 of 3

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD2 exomes
AF:
0.0000124
AC:
3
AN:
241690
AF XY:
0.0000227
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000343
AC:
5
AN:
1458426
Hom.:
0
Cov.:
30
AF XY:
0.00000414
AC XY:
3
AN XY:
725394
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33466
American (AMR)
AF:
0.00
AC:
0
AN:
44490
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26076
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39624
South Asian (SAS)
AF:
0.0000582
AC:
5
AN:
85972
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51480
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5762
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111292
Other (OTH)
AF:
0.00
AC:
0
AN:
60264
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.455
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.00000829
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.33
T
BayesDel_noAF
Benign
-0.51
CADD
Benign
6.4
DANN
Benign
0.73
DEOGEN2
Benign
0.00072
T
Eigen
Benign
-1.2
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.36
N
LIST_S2
Benign
0.59
T
M_CAP
Benign
0.033
D
MetaRNN
Benign
0.052
T
MetaSVM
Benign
-0.97
T
MutationAssessor
Benign
0.34
N
PhyloP100
0.11
PrimateAI
Benign
0.28
T
PROVEAN
Benign
-0.20
N
REVEL
Benign
0.085
Sift
Benign
0.36
T
Sift4G
Benign
0.59
T
Polyphen
0.070
B
Vest4
0.21
MutPred
0.34
Gain of MoRF binding (P = 0.0804)
MVP
0.14
MPC
0.28
ClinPred
0.049
T
GERP RS
-2.3
Varity_R
0.18
gMVP
0.51
Mutation Taster
=96/4
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: rs148398789; hg19: chr1-228362513; API