NM_021100.5:c.1345C>A

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_021100.5(NFS1):​c.1345C>A​(p.Leu449Ile) variant causes a missense change. The variant allele was found at a frequency of 0.000013 in 1,614,042 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

NFS1
NM_021100.5 missense

Scores

2
1
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.25

Publications

0 publications found
Variant links:
Genes affected
NFS1 (HGNC:15910): (NFS1 cysteine desulfurase) Iron-sulfur clusters are required for the function of many cellular enzymes. The proteins encoded by this gene supply inorganic sulfur to these clusters by removing the sulfur from cysteine, creating alanine in the process. This gene uses alternate in-frame translation initiation sites to generate mitochondrial forms and cytoplasmic/nuclear forms. Selection of the alternative initiation sites is determined by the cytosolic pH. The encoded proteins belong to the class-V family of pyridoxal phosphate-dependent aminotransferases. Alternatively spliced transcript variants have been described. [provided by RefSeq, Nov 2010]
NFS1 Gene-Disease associations (from GenCC):
  • combined oxidative phosphorylation deficiency 52
    Inheritance: AR Classification: STRONG, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • severe neonatal lactic acidosis due to NFS1-ISD11 complex deficiency
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

BP4
Computational evidence support a benign effect (MetaRNN=0.07801196).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_021100.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
NFS1
NM_021100.5
MANE Select
c.1345C>Ap.Leu449Ile
missense
Exon 13 of 13NP_066923.3
NFS1
NM_001198989.2
c.1192C>Ap.Leu398Ile
missense
Exon 12 of 12NP_001185918.1Q9Y697-3
NFS1
NR_037570.3
n.1531C>A
non_coding_transcript_exon
Exon 14 of 14

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
NFS1
ENST00000374092.9
TSL:1 MANE Select
c.1345C>Ap.Leu449Ile
missense
Exon 13 of 13ENSP00000363205.3Q9Y697-1
ENSG00000272897
ENST00000541176.2
TSL:2
n.287+3104C>A
intron
N/AENSP00000443983.2H0YGN5
NFS1
ENST00000874539.1
c.1372C>Ap.Leu458Ile
missense
Exon 13 of 13ENSP00000544598.1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152168
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:
0.000385
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000479
GnomAD2 exomes
AF:
0.0000477
AC:
12
AN:
251426
AF XY:
0.0000736
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000598
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000116
AC:
17
AN:
1461756
Hom.:
0
Cov.:
30
AF XY:
0.0000179
AC XY:
13
AN XY:
727178
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33478
American (AMR)
AF:
0.00
AC:
0
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26130
East Asian (EAS)
AF:
0.000353
AC:
14
AN:
39700
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86248
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111908
Other (OTH)
AF:
0.0000331
AC:
2
AN:
60382
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.469
Heterozygous variant carriers
0
2
4
5
7
9
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
AF:
0.0000263
AC:
4
AN:
152286
Hom.:
0
Cov.:
32
AF XY:
0.0000403
AC XY:
3
AN XY:
74456
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41558
American (AMR)
AF:
0.00
AC:
0
AN:
15294
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3464
East Asian (EAS)
AF:
0.000386
AC:
2
AN:
5178
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68032
Other (OTH)
AF:
0.000474
AC:
1
AN:
2108
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.513
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

Genome 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
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000227
ExAC
AF:
0.0000412
AC:
5
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.38
T
BayesDel_noAF
Benign
-0.42
CADD
Benign
23
DANN
Benign
0.97
DEOGEN2
Benign
0.23
T
Eigen
Benign
0.044
Eigen_PC
Benign
0.20
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.94
D
M_CAP
Benign
0.0067
T
MetaRNN
Benign
0.078
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.2
L
PhyloP100
5.3
PrimateAI
Pathogenic
0.84
D
PROVEAN
Benign
-0.90
N
REVEL
Benign
0.074
Sift
Benign
0.18
T
Sift4G
Benign
0.23
T
Polyphen
0.0
B
Vest4
0.32
MVP
0.21
MPC
0.48
ClinPred
0.10
T
GERP RS
4.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.28
gMVP
0.49
Mutation Taster
=49/51
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
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: rs180670660; hg19: chr20-34257573; API