chr2-227329783-G-A

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_001277062.2(MFF):​c.-40-843G>A variant causes a intron change. The variant allele was found at a frequency of 0.0000146 in 1,579,246 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

MFF
NM_001277062.2 intron

Scores

1
4
14
Splicing: ADA: 1.000
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.84
Variant links:
Genes affected
MFF (HGNC:24858): (mitochondrial fission factor) This is a nuclear gene encoding a protein that functions in mitochondrial and peroxisomal fission. The encoded protein recruits dynamin-1-like protein (DNM1L) to mitochondria. There are multiple pseudogenes for this gene on chromosomes 1, 5, and X. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2013]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. No scorers claiming Uncertain. Scorers claiming Benign: max_spliceai.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MFFNM_001277062.2 linkuse as main transcriptc.-40-843G>A intron_variant ENST00000304593.14

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MFFENST00000304593.14 linkuse as main transcriptc.-40-843G>A intron_variant 2 NM_001277062.2 P1Q9GZY8-2

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152068
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.00
GnomAD3 exomes
AF:
0.0000205
AC:
5
AN:
243752
Hom.:
0
AF XY:
0.00000760
AC XY:
1
AN XY:
131650
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000151
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS 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:
0.0000154
AC:
22
AN:
1427178
Hom.:
0
Cov.:
27
AF XY:
0.0000169
AC XY:
12
AN XY:
711812
show subpopulations
Gnomad4 AFR exome
AF:
0.000272
Gnomad4 AMR exome
AF:
0.000114
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:
9.24e-7
Gnomad4 OTH exome
AF:
0.000101
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152068
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74276
show subpopulations
Gnomad4 AFR
AF:
0.0000241
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:
0.00
Alfa
AF:
0.0000712
Hom.:
0
ExAC
AF:
0.0000330
AC:
4

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJul 24, 2022Occurs in the last base pair of the exon Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.15
T
BayesDel_noAF
Benign
-0.19
CADD
Pathogenic
32
DANN
Uncertain
0.99
DEOGEN2
Benign
0.046
T;T;.
Eigen
Benign
-0.025
Eigen_PC
Uncertain
0.22
FATHMM_MKL
Uncertain
0.88
D
LIST_S2
Benign
0.59
T;T;T
M_CAP
Benign
0.0066
T
MetaRNN
Benign
0.12
T;T;T
MetaSVM
Benign
-0.92
T
MutationAssessor
Benign
1.5
L;.;.
MutationTaster
Benign
0.82
D;D;D;D;D;D;D;D;D
PrimateAI
Uncertain
0.52
T
PROVEAN
Benign
-0.15
N;D;N
REVEL
Benign
0.079
Sift
Pathogenic
0.0
D;.;D
Sift4G
Benign
0.42
T;D;T
Polyphen
0.019
B;.;.
Vest4
0.16
MutPred
0.24
Gain of ubiquitination at R13 (P = 0.0075);Gain of ubiquitination at R13 (P = 0.0075);Gain of ubiquitination at R13 (P = 0.0075);
MVP
0.39
MPC
0.30
ClinPred
0.13
T
GERP RS
6.0
Varity_R
0.28
gMVP
0.53

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
1.0
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: rs1173382920; hg19: chr2-228194499; API