rs754192985

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PVS1_StrongPM2

The NM_213649.2(SFXN4):​c.32del​(p.Pro11LeufsTer5) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000527 in 1,592,764 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (β˜…).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000053 ( 0 hom. )

Consequence

SFXN4
NM_213649.2 frameshift

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.592
Variant links:
Genes affected
SFXN4 (HGNC:16088): (sideroflexin 4) This gene encodes a member of the sideroflexin family. The encoded protein is a transmembrane protein of the inner mitochondrial membrane, and is required for mitochondrial respiratory homeostasis and erythropoiesis. Mutations in this gene are associated with mitochondriopathy and macrocytic anemia. Alternatively spliced transcript variants have been found in this gene. [provided by RefSeq, Jan 2014]

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PVS1
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant located near the start codon (<100nt), not predicted to undergo nonsense mediated mRNA decay. There are 5 pathogenic variants in the truncated region.
PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SFXN4NM_213649.2 linkuse as main transcriptc.32del p.Pro11LeufsTer5 frameshift_variant 1/14 ENST00000355697.7
SFXN4XM_005269525.6 linkuse as main transcriptc.32del p.Pro11LeufsTer5 frameshift_variant 1/13
SFXN4XM_047424584.1 linkuse as main transcriptc.32del p.Pro11LeufsTer5 frameshift_variant 1/14
SFXN4NR_110305.1 linkuse as main transcriptn.77del non_coding_transcript_exon_variant 1/14

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SFXN4ENST00000355697.7 linkuse as main transcriptc.32del p.Pro11LeufsTer5 frameshift_variant 1/141 NM_213649.2 P1Q6P4A7-1
SFXN4ENST00000461438.5 linkuse as main transcriptn.39del non_coding_transcript_exon_variant 1/155
SFXN4ENST00000466218.5 linkuse as main transcriptn.8del non_coding_transcript_exon_variant 1/115

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152030
Hom.:
0
Cov.:
32
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:
0.0000944
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000883
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000941
AC:
21
AN:
223178
Hom.:
0
AF XY:
0.0000815
AC XY:
10
AN XY:
122740
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000587
Gnomad NFE exome
AF:
0.0000705
Gnomad OTH exome
AF:
0.000374
GnomAD4 exome
AF:
0.0000534
AC:
77
AN:
1440734
Hom.:
0
Cov.:
32
AF XY:
0.0000586
AC XY:
42
AN XY:
717142
show subpopulations
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:
0.00111
Gnomad4 NFE exome
AF:
0.0000163
Gnomad4 OTH exome
AF:
0.0000336
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152030
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74270
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:
0.0000944
Gnomad4 NFE
AF:
0.0000883
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000182
Hom.:
0
Bravo
AF:
0.0000113

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoNov 23, 2016- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

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: rs754192985; hg19: chr10-120925127; API