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GeneBe

4-75957338-A-C

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_018115.4(SDAD1):c.1841T>G(p.Leu614Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000062 in 1,613,716 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

SDAD1
NM_018115.4 missense

Scores

8
7
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.10
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 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.921

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SDAD1NM_018115.4 linkuse as main transcriptc.1841T>G p.Leu614Arg missense_variant 20/22 ENST00000356260.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SDAD1ENST00000356260.10 linkuse as main transcriptc.1841T>G p.Leu614Arg missense_variant 20/221 NM_018115.4 P1Q9NVU7-1
SDAD1ENST00000395710.5 linkuse as main transcriptc.*1697T>G 3_prime_UTR_variant, NMD_transcript_variant 20/221
SDAD1ENST00000395711.8 linkuse as main transcriptc.1730T>G p.Leu577Arg missense_variant 19/212
SDAD1ENST00000502543.5 linkuse as main transcriptn.34T>G non_coding_transcript_exon_variant 1/44

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152210
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.0000239
AC:
6
AN:
251274
Hom.:
0
AF XY:
0.0000295
AC XY:
4
AN XY:
135798
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000174
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000616
AC:
9
AN:
1461506
Hom.:
0
Cov.:
31
AF XY:
0.00000688
AC XY:
5
AN XY:
727052
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000201
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152210
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74368
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
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
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 GeneticsJan 03, 2024The c.1841T>G (p.L614R) alteration is located in exon 20 (coding exon 20) of the SDAD1 gene. This alteration results from a T to G substitution at nucleotide position 1841, causing the leucine (L) at amino acid position 614 to be replaced by an arginine (R). 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
0.83
BayesDel_addAF
Uncertain
0.078
D
BayesDel_noAF
Pathogenic
0.14
Cadd
Pathogenic
29
Dann
Uncertain
1.0
DEOGEN2
Benign
0.17
T;.
Eigen
Pathogenic
0.75
Eigen_PC
Pathogenic
0.68
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.94
D;D
M_CAP
Benign
0.010
T
MetaRNN
Pathogenic
0.92
D;D
MetaSVM
Benign
-0.73
T
MutationAssessor
Pathogenic
3.2
M;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.77
T
PROVEAN
Pathogenic
-4.4
D;D
REVEL
Uncertain
0.49
Sift
Uncertain
0.0010
D;D
Sift4G
Uncertain
0.0040
D;D
Polyphen
1.0
D;D
Vest4
0.96
MutPred
0.81
Gain of methylation at L614 (P = 0.0377);.;
MVP
0.65
MPC
0.38
ClinPred
0.93
D
GERP RS
4.2
Varity_R
0.93
gMVP
0.67

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs752690471; hg19: chr4-76878491; API