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GeneBe

4-75956072-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_018115.4(SDAD1):c.1919C>T(p.Ser640Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000236 in 1,612,718 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

SDAD1
NM_018115.4 missense

Scores

2
6
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.59
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.14697605).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SDAD1NM_018115.4 linkuse as main transcriptc.1919C>T p.Ser640Leu missense_variant 21/22 ENST00000356260.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SDAD1ENST00000356260.10 linkuse as main transcriptc.1919C>T p.Ser640Leu missense_variant 21/221 NM_018115.4 P1Q9NVU7-1
SDAD1ENST00000395710.5 linkuse as main transcriptc.*1775C>T 3_prime_UTR_variant, NMD_transcript_variant 21/221
SDAD1ENST00000395711.8 linkuse as main transcriptc.1808C>T p.Ser603Leu missense_variant 20/212
SDAD1ENST00000502543.5 linkuse as main transcriptn.112C>T non_coding_transcript_exon_variant 2/44

Frequencies

GnomAD3 genomes
AF:
0.0000789
AC:
12
AN:
152016
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000169
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000385
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000946
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000680
AC:
17
AN:
250038
Hom.:
0
AF XY:
0.0000444
AC XY:
6
AN XY:
135148
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000410
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000109
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000178
AC:
26
AN:
1460702
Hom.:
0
Cov.:
31
AF XY:
0.0000138
AC XY:
10
AN XY:
726624
show subpopulations
Gnomad4 AFR exome
AF:
0.000120
Gnomad4 AMR exome
AF:
0.000337
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000505
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000270
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000789
AC:
12
AN:
152016
Hom.:
0
Cov.:
32
AF XY:
0.000108
AC XY:
8
AN XY:
74262
show subpopulations
Gnomad4 AFR
AF:
0.000169
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000385
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.0000946
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000142
Hom.:
0
Bravo
AF:
0.0000529
ExAC
AF:
0.0000659
AC:
8

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 GeneticsJan 31, 2024The c.1919C>T (p.S640L) alteration is located in exon 21 (coding exon 21) of the SDAD1 gene. This alteration results from a C to T substitution at nucleotide position 1919, causing the serine (S) at amino acid position 640 to be replaced by a leucine (L). 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
0.20
D
BayesDel_noAF
Benign
-0.36
Cadd
Uncertain
25
Dann
Uncertain
1.0
DEOGEN2
Benign
0.015
T;.
Eigen
Uncertain
0.31
Eigen_PC
Uncertain
0.40
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.88
D;D
M_CAP
Benign
0.0067
T
MetaRNN
Benign
0.15
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.6
L;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.62
T
PROVEAN
Benign
-1.7
N;N
REVEL
Benign
0.089
Sift
Uncertain
0.012
D;D
Sift4G
Benign
0.064
T;T
Polyphen
0.64
P;P
Vest4
0.39
MutPred
0.34
Loss of phosphorylation at S640 (P = 0.0148);.;
MVP
0.42
MPC
0.055
ClinPred
0.16
T
GERP RS
4.7
Varity_R
0.30
gMVP
0.20

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: rs769871264; hg19: chr4-76877225; COSMIC: COSV62403794; COSMIC: COSV62403794; API