22-43973288-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_015380.5(SAMM50):​c.613C>T​(p.Arg205Trp) variant causes a missense change. The variant allele was found at a frequency of 0.0000436 in 1,606,954 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R205Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000044 ( 0 hom. )

Consequence

SAMM50
NM_015380.5 missense

Scores

3
8
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.99
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 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SAMM50NM_015380.5 linkuse as main transcriptc.613C>T p.Arg205Trp missense_variant 7/15 ENST00000350028.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SAMM50ENST00000350028.5 linkuse as main transcriptc.613C>T p.Arg205Trp missense_variant 7/151 NM_015380.5 P1
SAMM50ENST00000493161.1 linkuse as main transcriptn.795C>T non_coding_transcript_exon_variant 7/73

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152240
Hom.:
0
Cov.:
33
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:
0.000192
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000438
AC:
11
AN:
251390
Hom.:
0
AF XY:
0.0000294
AC XY:
4
AN XY:
135878
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000109
Gnomad SAS exome
AF:
0.000163
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000352
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000440
AC:
64
AN:
1454596
Hom.:
0
Cov.:
28
AF XY:
0.0000400
AC XY:
29
AN XY:
724146
show subpopulations
Gnomad4 AFR exome
AF:
0.0000600
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.0000929
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000434
Gnomad4 OTH exome
AF:
0.0000499
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152358
Hom.:
0
Cov.:
33
AF XY:
0.0000268
AC XY:
2
AN XY:
74506
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000735
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000772
Hom.:
0
Bravo
AF:
0.0000529
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000741
AC:
9
EpiCase
AF:
0.000109
EpiControl
AF:
0.0000593

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 GeneticsMay 03, 2023The c.613C>T (p.R205W) alteration is located in exon 7 (coding exon 7) of the SAMM50 gene. This alteration results from a C to T substitution at nucleotide position 613, causing the arginine (R) at amino acid position 205 to be replaced by a tryptophan (W). 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
0.22
BayesDel_addAF
Benign
-0.0061
T
BayesDel_noAF
Uncertain
0.010
CADD
Pathogenic
29
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.14
T
Eigen
Uncertain
0.58
Eigen_PC
Uncertain
0.58
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Pathogenic
0.98
D
M_CAP
Benign
0.025
T
MetaRNN
Uncertain
0.70
D
MetaSVM
Benign
-0.77
T
MutationAssessor
Benign
1.8
L
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.81
D
PROVEAN
Uncertain
-3.9
D
REVEL
Benign
0.23
Sift
Uncertain
0.0030
D
Sift4G
Uncertain
0.014
D
Polyphen
0.98
D
Vest4
0.84
MVP
0.63
MPC
0.84
ClinPred
0.57
D
GERP RS
5.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.66
gMVP
0.56

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.12
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: rs150292452; hg19: chr22-44369168; API