4-75950787-C-T

Variant summary

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

The NM_018115.4(SDAD1):​c.2027G>A​(p.Arg676Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000145 in 1,585,430 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

SDAD1
NM_018115.4 missense

Scores

1
9
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.31
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]

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=0.37013978).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SDAD1NM_018115.4 linkuse as main transcriptc.2027G>A p.Arg676Gln missense_variant 22/22 ENST00000356260.10 NP_060585.2 Q9NVU7-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SDAD1ENST00000356260.10 linkuse as main transcriptc.2027G>A p.Arg676Gln missense_variant 22/221 NM_018115.4 ENSP00000348596.5 Q9NVU7-1

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
151950
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000967
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000657
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:
0.0000121
AC:
3
AN:
247880
Hom.:
0
AF XY:
0.0000149
AC XY:
2
AN XY:
134274
show subpopulations
Gnomad AFR exome
AF:
0.0000616
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000328
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000901
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000126
AC:
18
AN:
1433480
Hom.:
0
Cov.:
27
AF XY:
0.0000127
AC XY:
9
AN XY:
711274
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:
0.0000239
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000128
Gnomad4 OTH exome
AF:
0.0000339
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
151950
Hom.:
0
Cov.:
32
AF XY:
0.0000270
AC XY:
2
AN XY:
74194
show subpopulations
Gnomad4 AFR
AF:
0.0000967
Gnomad4 AMR
AF:
0.0000657
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
Bravo
AF:
0.0000340
ESP6500AA
AF:
0.000454
AC:
2
ESP6500EA
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 GeneticsSep 02, 2024The c.2027G>A (p.R676Q) alteration is located in exon 22 (coding exon 22) of the SDAD1 gene. This alteration results from a G to A substitution at nucleotide position 2027, causing the arginine (R) at amino acid position 676 to be replaced by a glutamine (Q). 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
0.19
BayesDel_addAF
Pathogenic
0.26
D
BayesDel_noAF
Benign
-0.34
CADD
Benign
23
DANN
Uncertain
0.99
DEOGEN2
Benign
0.10
T;.
Eigen
Uncertain
0.54
Eigen_PC
Uncertain
0.43
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.94
D;D
M_CAP
Benign
0.011
T
MetaRNN
Benign
0.37
T;T
MetaSVM
Benign
-0.79
T
MutationAssessor
Uncertain
2.1
M;.
PrimateAI
Uncertain
0.71
T
PROVEAN
Uncertain
-2.9
D;D
REVEL
Benign
0.22
Sift
Benign
0.071
T;T
Sift4G
Uncertain
0.0080
D;D
Polyphen
0.99
D;D
Vest4
0.33
MVP
0.62
MPC
0.061
ClinPred
0.80
D
GERP RS
4.0
Varity_R
0.25
gMVP
0.28

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.090
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: rs145814675; hg19: chr4-76871940; COSMIC: COSV62403851; API