5-175526663-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_022754.7(SFXN1):​c.898G>A​(p.Ala300Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000173 in 1,614,164 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000099 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

SFXN1
NM_022754.7 missense

Scores

4
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.06
Variant links:
Genes affected
SFXN1 (HGNC:16085): (sideroflexin 1) Enables D-serine transmembrane transporter activity and L-serine transmembrane transporter activity. Involved in D-serine transport; L-serine transport; and serine import into mitochondrion. Located in mitochondrion. Is integral component of mitochondrial inner membrane. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.0538837).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SFXN1NM_022754.7 linkuse as main transcriptc.898G>A p.Ala300Thr missense_variant 11/11 ENST00000321442.10 NP_073591.2 Q9H9B4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SFXN1ENST00000321442.10 linkuse as main transcriptc.898G>A p.Ala300Thr missense_variant 11/111 NM_022754.7 ENSP00000316905.5 Q9H9B4
SFXN1ENST00000421887.2 linkuse as main transcriptn.331G>A non_coding_transcript_exon_variant 4/44

Frequencies

GnomAD3 genomes
AF:
0.0000986
AC:
15
AN:
152162
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000982
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:
0.0000239
AC:
6
AN:
251472
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135910
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
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:
0.00000889
AC:
13
AN:
1461884
Hom.:
0
Cov.:
30
AF XY:
0.0000124
AC XY:
9
AN XY:
727242
show subpopulations
Gnomad4 AFR exome
AF:
0.0000597
Gnomad4 AMR exome
AF:
0.000157
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:
0.00
Gnomad4 OTH exome
AF:
0.0000662
GnomAD4 genome
AF:
0.0000985
AC:
15
AN:
152280
Hom.:
0
Cov.:
32
AF XY:
0.000107
AC XY:
8
AN XY:
74480
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000981
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:
0.000142
Hom.:
0
Bravo
AF:
0.000302
ExAC
AF:
0.00000824
AC:
1

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 testingAmbry GeneticsJun 25, 2024The c.898G>A (p.A300T) alteration is located in exon 11 (coding exon 10) of the SFXN1 gene. This alteration results from a G to A substitution at nucleotide position 898, causing the alanine (A) at amino acid position 300 to be replaced by a threonine (T). 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
0.064
BayesDel_addAF
Benign
-0.35
T
BayesDel_noAF
Benign
-0.56
CADD
Benign
20
DANN
Uncertain
1.0
DEOGEN2
Benign
0.037
T
Eigen
Benign
-0.26
Eigen_PC
Benign
-0.092
FATHMM_MKL
Benign
0.73
D
LIST_S2
Uncertain
0.86
D
M_CAP
Benign
0.0094
T
MetaRNN
Benign
0.054
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.34
N
PrimateAI
Benign
0.32
T
PROVEAN
Benign
-0.24
N
REVEL
Benign
0.038
Sift
Uncertain
0.027
D
Sift4G
Uncertain
0.045
D
Polyphen
0.020
B
Vest4
0.099
MutPred
0.43
Gain of disorder (P = 0.1523);
MVP
0.21
MPC
0.21
ClinPred
0.13
T
GERP RS
3.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.080
gMVP
0.43

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: rs542740389; hg19: chr5-174953666; API