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GeneBe

4-75956030-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_018115.4(SDAD1):c.1961T>C(p.Met654Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000124 in 1,612,306 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

SDAD1
NM_018115.4 missense

Scores

3
3
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.85
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 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SDAD1NM_018115.4 linkuse as main transcriptc.1961T>C p.Met654Thr missense_variant 21/22 ENST00000356260.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SDAD1ENST00000356260.10 linkuse as main transcriptc.1961T>C p.Met654Thr missense_variant 21/221 NM_018115.4 P1Q9NVU7-1
SDAD1ENST00000395710.5 linkuse as main transcriptc.*1817T>C 3_prime_UTR_variant, NMD_transcript_variant 21/221
SDAD1ENST00000395711.8 linkuse as main transcriptc.1850T>C p.Met617Thr missense_variant 20/212
SDAD1ENST00000502543.5 linkuse as main transcriptn.154T>C non_coding_transcript_exon_variant 2/44

Frequencies

GnomAD3 genomes
AF:
0.0000920
AC:
14
AN:
152254
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000338
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000120
AC:
3
AN:
249558
Hom.:
0
AF XY:
0.00000742
AC XY:
1
AN XY:
134854
show subpopulations
Gnomad AFR exome
AF:
0.000185
Gnomad AMR exome
AF:
0.00
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:
0.00000411
AC:
6
AN:
1460052
Hom.:
0
Cov.:
31
AF XY:
0.00000413
AC XY:
3
AN XY:
726300
show subpopulations
Gnomad4 AFR exome
AF:
0.000180
Gnomad4 AMR exome
AF:
0.00
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:
0.0000920
AC:
14
AN:
152254
Hom.:
0
Cov.:
32
AF XY:
0.0000672
AC XY:
5
AN XY:
74392
show subpopulations
Gnomad4 AFR
AF:
0.000338
Gnomad4 AMR
AF:
0.00
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
Alfa
AF:
0.0000658
Hom.:
0
Bravo
AF:
0.0000718
ESP6500AA
AF:
0.000227
AC:
1
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 GeneticsDec 26, 2023The c.1961T>C (p.M654T) alteration is located in exon 21 (coding exon 21) of the SDAD1 gene. This alteration results from a T to C substitution at nucleotide position 1961, causing the methionine (M) at amino acid position 654 to be replaced by a threonine (T). 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
0.80
BayesDel_addAF
Benign
-0.14
T
BayesDel_noAF
Uncertain
-0.010
Cadd
Uncertain
24
Dann
Benign
0.92
DEOGEN2
Benign
0.099
T;.
Eigen
Benign
0.0022
Eigen_PC
Benign
0.18
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Benign
0.79
T;T
M_CAP
Benign
0.017
T
MetaRNN
Uncertain
0.53
D;D
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.98
L;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.82
D
PROVEAN
Uncertain
-2.7
D;D
REVEL
Benign
0.28
Sift
Benign
0.12
T;T
Sift4G
Benign
0.16
T;T
Polyphen
0.063
B;B
Vest4
0.91
MVP
0.29
MPC
0.14
ClinPred
0.31
T
GERP RS
4.7
Varity_R
0.43
gMVP
0.38

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs149346502; hg19: chr4-76877183; API