21-14516908-G-T

Variant summary

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

The ENST00000400566.6(SAMSN1):​c.263C>A​(p.Ala88Asp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000188 in 1,608,282 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000085 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00020 ( 0 hom. )

Consequence

SAMSN1
ENST00000400566.6 missense

Scores

5
13
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.45
Variant links:
Genes affected
SAMSN1 (HGNC:10528): (SAM domain, SH3 domain and nuclear localization signals 1) SAMSN1 is a member of a novel gene family of putative adaptors and scaffold proteins containing SH3 and SAM (sterile alpha motif) domains (Claudio et al., 2001 [PubMed 11536050]).[supplied by OMIM, Mar 2008]

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 Protein UniProt
SAMSN1NM_022136.5 linkuse as main transcriptc.263C>A p.Ala88Asp missense_variant 3/8 ENST00000400566.6 NP_071419.3
LOC124905053XR_007067925.1 linkuse as main transcriptn.340-20938G>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SAMSN1ENST00000400566.6 linkuse as main transcriptc.263C>A p.Ala88Asp missense_variant 3/81 NM_022136.5 ENSP00000383411 P1Q9NSI8-1

Frequencies

GnomAD3 genomes
AF:
0.0000854
AC:
13
AN:
152140
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:
0.000176
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000738
AC:
18
AN:
244002
Hom.:
0
AF XY:
0.0000831
AC XY:
11
AN XY:
132324
show subpopulations
Gnomad AFR exome
AF:
0.0000652
Gnomad AMR exome
AF:
0.0000301
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:
0.000134
Gnomad OTH exome
AF:
0.000169
GnomAD4 exome
AF:
0.000199
AC:
290
AN:
1456142
Hom.:
0
Cov.:
30
AF XY:
0.000197
AC XY:
143
AN XY:
724250
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000230
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:
0.000248
Gnomad4 OTH exome
AF:
0.000233
GnomAD4 genome
AF:
0.0000854
AC:
13
AN:
152140
Hom.:
0
Cov.:
33
AF XY:
0.0000807
AC XY:
6
AN XY:
74324
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:
0.000176
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000119
Hom.:
0
Bravo
AF:
0.0000982
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000519
AC:
2
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000369
AC:
3
ExAC
AF:
0.0000828
AC:
10
EpiCase
AF:
0.000218
EpiControl
AF:
0.000179

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 GeneticsDec 20, 2021The c.263C>A (p.A88D) alteration is located in exon 3 (coding exon 3) of the SAMSN1 gene. This alteration results from a C to A substitution at nucleotide position 263, causing the alanine (A) at amino acid position 88 to be replaced by an aspartic acid (D). 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
Pathogenic
0.68
BayesDel_addAF
Uncertain
0.15
D
BayesDel_noAF
Pathogenic
0.23
CADD
Pathogenic
30
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.57
D;.;T;.
Eigen
Pathogenic
0.87
Eigen_PC
Pathogenic
0.83
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.95
D;D;D;D
M_CAP
Uncertain
0.097
D
MetaRNN
Uncertain
0.70
D;D;D;D
MetaSVM
Uncertain
-0.19
T
MutationAssessor
Uncertain
2.7
M;.;.;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.67
T
PROVEAN
Uncertain
-4.2
D;.;.;D
REVEL
Uncertain
0.48
Sift
Uncertain
0.0010
D;.;.;D
Sift4G
Uncertain
0.013
D;.;D;D
Polyphen
0.99
D;.;.;.
Vest4
0.68
MVP
0.92
MPC
0.71
ClinPred
0.81
D
GERP RS
5.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.74
gMVP
0.59

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: rs200178567; hg19: chr21-15889229; API