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GeneBe

7-66988388-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM1BP4

The NM_016038.4(SBDS):c.736G>A(p.Asp246Asn) variant causes a missense change. The variant allele was found at a frequency of 0.00000992 in 1,613,558 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 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

SBDS
NM_016038.4 missense

Scores

5
7
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.01
Variant links:
Genes affected
SBDS (HGNC:19440): (SBDS ribosome maturation factor) This gene encodes a highly conserved protein that plays an essential role in ribosome biogenesis. The encoded protein interacts with elongation factor-like GTPase 1 to disassociate eukaryotic initiation factor 6 from the late cytoplasmic pre-60S ribosomal subunit allowing assembly of the 80S subunit. Mutations within this gene are associated with the autosomal recessive disorder Shwachman-Bodian-Diamond syndrome. This gene has a closely linked pseudogene that is distally located. [provided by RefSeq, Jan 2017]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM1
In a chain Ribosome maturation protein SBDS (size 248) in uniprot entity SBDS_HUMAN there are 17 pathogenic changes around while only 2 benign (89%) in NM_016038.4
BP4
Computational evidence support a benign effect (MetaRNN=0.366116).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SBDSNM_016038.4 linkuse as main transcriptc.736G>A p.Asp246Asn missense_variant 5/5 ENST00000246868.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SBDSENST00000246868.7 linkuse as main transcriptc.736G>A p.Asp246Asn missense_variant 5/51 NM_016038.4 P1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152202
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.0000279
AC:
7
AN:
251110
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135780
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000202
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:
0.0000103
AC:
15
AN:
1461238
Hom.:
0
Cov.:
31
AF XY:
0.00000825
AC XY:
6
AN XY:
726982
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000335
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:
152320
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74472
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
Bravo
AF:
0.0000113

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJun 18, 2021The c.736G>A (p.D246N) alteration is located in exon 5 (coding exon 5) of the SBDS gene. This alteration results from a G to A substitution at nucleotide position 736, causing the aspartic acid (D) at amino acid position 246 to be replaced by an asparagine (N). 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
0.20
BayesDel_addAF
Benign
-0.078
T
BayesDel_noAF
Benign
-0.090
Cadd
Pathogenic
26
Dann
Pathogenic
1.0
DEOGEN2
Benign
0.39
T;T
Eigen
Uncertain
0.59
Eigen_PC
Uncertain
0.62
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.93
D;D
M_CAP
Uncertain
0.29
D
MetaRNN
Benign
0.37
T;T
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
3.0
M;.
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.62
T
PROVEAN
Uncertain
-3.4
D;.
REVEL
Pathogenic
0.68
Sift
Uncertain
0.0040
D;.
Sift4G
Benign
0.088
T;T
Polyphen
0.80
P;.
Vest4
0.34
MVP
0.98
MPC
1.0
ClinPred
0.88
D
GERP RS
5.0
Varity_R
0.82
gMVP
0.37

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: rs188752805; hg19: chr7-66453375; API