Genetic Variant SDAD1:p.Leu502Val (chr4-75957921-G-C) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_018115.4(SDAD1):c.1504C>G(p.Leu502Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,566 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

SDAD1
NM_018115.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.79

Publications

0 publications found

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 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.14260405).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SDAD1	NM_018115.4 link	c.1504C>G	p.Leu502Val	missense_variant	Exon 18 of 22	ENST00000356260.10	NP_060585.2	Q9NVU7-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SDAD1	ENST00000356260.10 link	c.1504C>G	p.Leu502Val	missense_variant	Exon 18 of 22	1	NM_018115.4	ENSP00000348596.5	Q9NVU7-1
SDAD1	ENST00000395710.5 link	n.*1360C>G		non_coding_transcript_exon_variant	Exon 18 of 22	1		ENSP00000379060.1	F8W8T7
SDAD1	ENST00000395710.5 link	n.*1360C>G		3_prime_UTR_variant	Exon 18 of 22	1		ENSP00000379060.1	F8W8T7
SDAD1	ENST00000395711.8 link	c.1393C>G	p.Leu465Val	missense_variant	Exon 17 of 21	2		ENSP00000379061.4	E7EW05

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1460566

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726604

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33440

American (AMR)

AF:

0.0000224

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86196

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4696

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111970

Other (OTH)

AF:

0.00

AC:

AN:

60284

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 04, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.1504C>G (p.L502V) alteration is located in exon 18 (coding exon 18) of the SDAD1 gene. This alteration results from a C to G substitution at nucleotide position 1504, causing the leucine (L) at amino acid position 502 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

Benign

0.068

BayesDel_addAF

Benign

-0.20

BayesDel_noAF

Benign

-0.52

CADD

Benign

(source)

DANN

Benign

0.81

DEOGEN2

Benign

0.0066

T;.

Eigen

Benign

-0.42

Eigen_PC

Benign

-0.29

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.87

D;D

M_CAP

Benign

0.011

MetaRNN

Benign

0.14

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.4

L;.

PhyloP100

1.8

PrimateAI

Benign

0.38

PROVEAN

Benign

0.030

N;N

REVEL

Benign

0.069

Sift

Benign

0.31

T;T

Sift4G

Benign

0.38

T;T

Polyphen

0.064

B;B

Vest4

0.35

MutPred

0.32

Gain of glycosylation at S499 (P = 0.0821);.;

MVP

0.27

MPC

0.066

ClinPred

0.18

GERP RS

4.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.069

gMVP

0.078

Mutation Taster

=91/9

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over