4-75981937-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_018115.4(SDAD1):​c.191C>T​(p.Ala64Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000632 in 1,598,766 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000066 ( 1 hom. )

Consequence

SDAD1
NM_018115.4 missense

Scores

9
8
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.37
Variant links:
Genes affected
SDAD1 (HGNC:25537): (SDA1 domain containing 1) Predicted to be involved in ribosomal large subunit biogenesis and ribosomal large subunit export from nucleus. Predicted to act upstream of or within cellular response to leukemia inhibitory factor. Located in nucleolus and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]
SDAD1-AS1 (HGNC:41106): (SDAD1 antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.768

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SDAD1NM_018115.4 linkc.191C>T p.Ala64Val missense_variant 2/22 ENST00000356260.10 NP_060585.2 Q9NVU7-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SDAD1ENST00000356260.10 linkc.191C>T p.Ala64Val missense_variant 2/221 NM_018115.4 ENSP00000348596.5 Q9NVU7-1

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152192
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:
0.000192
Gnomad SAS
AF:
0.00104
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000973
AC:
24
AN:
246752
Hom.:
0
AF XY:
0.000128
AC XY:
17
AN XY:
133272
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:
0.000789
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000166
GnomAD4 exome
AF:
0.0000657
AC:
95
AN:
1446574
Hom.:
1
Cov.:
29
AF XY:
0.0000916
AC XY:
66
AN XY:
720294
show subpopulations
Gnomad4 AFR exome
AF:
0.0000303
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00106
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000670
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152192
Hom.:
0
Cov.:
32
AF XY:
0.0000403
AC XY:
3
AN XY:
74350
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000192
Gnomad4 SAS
AF:
0.00104
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756
ExAC
AF:
0.000107
AC:
13

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 GeneticsApr 17, 2024The c.191C>T (p.A64V) alteration is located in exon 2 (coding exon 2) of the SDAD1 gene. This alteration results from a C to T substitution at nucleotide position 191, causing the alanine (A) at amino acid position 64 to be replaced by a valine (V). 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
0.79
BayesDel_addAF
Uncertain
0.12
D
BayesDel_noAF
Pathogenic
0.32
CADD
Pathogenic
30
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.35
T;.
Eigen
Pathogenic
0.83
Eigen_PC
Pathogenic
0.75
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Pathogenic
0.98
D;D
M_CAP
Uncertain
0.12
D
MetaRNN
Pathogenic
0.77
D;D
MetaSVM
Uncertain
0.47
D
MutationAssessor
Pathogenic
3.5
M;.
PrimateAI
Uncertain
0.73
T
PROVEAN
Uncertain
-3.1
D;D
REVEL
Uncertain
0.60
Sift
Uncertain
0.0040
D;D
Sift4G
Uncertain
0.0060
D;D
Polyphen
0.99
D;D
Vest4
0.83
MutPred
0.75
Loss of loop (P = 0.2237);Loss of loop (P = 0.2237);
MVP
0.92
MPC
0.12
ClinPred
0.80
D
GERP RS
4.8
Varity_R
0.45
gMVP
0.64

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs769687478; hg19: chr4-76903090; COSMIC: COSV62402292; COSMIC: COSV62402292; API