chr22-43972265-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_015380.5(SAMM50):​c.352G>A​(p.Val118Ile) variant causes a missense change. The variant allele was found at a frequency of 0.0000356 in 1,601,354 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 0.000033 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000036 ( 0 hom. )

Consequence

SAMM50
NM_015380.5 missense

Scores

1
5
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.64
Variant links:
Genes affected
SAMM50 (HGNC:24276): (SAMM50 sorting and assembly machinery component) This gene encodes a component of the Sorting and Assembly Machinery (SAM) of the mitochondrial outer membrane. The Sam complex functions in the assembly of beta-barrel proteins into the outer mitochondrial membrane.[provided by RefSeq, Jun 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.3683233).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SAMM50NM_015380.5 linkuse as main transcriptc.352G>A p.Val118Ile missense_variant 5/15 ENST00000350028.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SAMM50ENST00000350028.5 linkuse as main transcriptc.352G>A p.Val118Ile missense_variant 5/151 NM_015380.5 P1
SAMM50ENST00000493161.1 linkuse as main transcriptn.534G>A non_coding_transcript_exon_variant 5/73

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152066
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000483
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000830
AC:
2
AN:
241076
Hom.:
0
AF XY:
0.00000768
AC XY:
1
AN XY:
130290
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:
0.00
Gnomad NFE exome
AF:
0.0000179
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000359
AC:
52
AN:
1449288
Hom.:
0
Cov.:
30
AF XY:
0.0000319
AC XY:
23
AN XY:
720732
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:
0.0000361
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000433
Gnomad4 OTH exome
AF:
0.0000167
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
152066
Hom.:
0
Cov.:
33
AF XY:
0.0000404
AC XY:
3
AN XY:
74280
show subpopulations
Gnomad4 AFR
AF:
0.0000483
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:
0.0000441
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000340
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
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 GeneticsOct 10, 2023The c.352G>A (p.V118I) alteration is located in exon 5 (coding exon 5) of the SAMM50 gene. This alteration results from a G to A substitution at nucleotide position 352, causing the valine (V) at amino acid position 118 to be replaced by an isoleucine (I). 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
0.11
BayesDel_addAF
Benign
-0.085
T
BayesDel_noAF
Benign
-0.36
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.077
T
Eigen
Uncertain
0.51
Eigen_PC
Uncertain
0.48
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Benign
0.82
T
M_CAP
Benign
0.0083
T
MetaRNN
Benign
0.37
T
MetaSVM
Benign
-0.79
T
MutationAssessor
Uncertain
2.2
M
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.75
T
PROVEAN
Benign
-0.89
N
REVEL
Benign
0.24
Sift
Benign
0.061
T
Sift4G
Benign
0.098
T
Polyphen
1.0
D
Vest4
0.22
MutPred
0.72
Gain of loop (P = 0.2754);
MVP
0.47
MPC
0.41
ClinPred
0.80
D
GERP RS
4.9
Varity_R
0.12
gMVP
0.37

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: rs556789427; hg19: chr22-44368145; API