Genetic Variant SSBP3:p.Gly222Ser (chr1-54243287-C-T) – ACMG Classification: Likely_benign (-5 pts)

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2

The NM_145716.4(SSBP3):c.664G>A(p.Gly222Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000651 in 1,613,842 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 0.000039 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000068 ( 0 hom. )

Consequence

SSBP3
NM_145716.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.24

Variant links:

Genes affected

SSBP3 (HGNC:15674): (single stranded DNA binding protein 3) Predicted to enable single-stranded DNA binding activity and transcription coactivator activity. Predicted to be involved in head development and positive regulation of transcription by RNA polymerase II. Predicted to act upstream of or within hematopoietic progenitor cell differentiation. Predicted to be part of protein-containing complex. Predicted to be active in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

SSBP3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.41394877).

BS2

High AC in GnomAd4 at 6 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	Protein	UniProt
SSBP3	NM_145716.4 link	c.664G>A	p.Gly222Ser	missense_variant	Exon 10 of 18	NP_663768.1	Q9BWW4-1
SSBP3	NM_001394360.1 link	c.607G>A	p.Gly203Ser	missense_variant	Exon 9 of 17	NP_001381289.1
SSBP3	NM_018070.5 link	c.604G>A	p.Gly202Ser	missense_variant	Exon 9 of 17	NP_060540.2	Q9BWW4-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SSBP3	ENST00000610401.6 link	c.664G>A	p.Gly222Ser	missense_variant	Exon 10 of 18	5		ENSP00000479674.2		Q9BWW4-1A0A087WVT6

Frequencies

GnomAD3 genomes

AF:

0.0000395

AC:

AN:

152054

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000875

AC:

AN:

251460

Hom.:

AF XY:

0.0000883

AC XY:

AN XY:

135904

show subpopulations

Gnomad AFR exome

AF:

0.000123

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000123

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000677

AC:

AN:

1461788

Hom.:

Cov.:

AF XY:

0.0000646

AC XY:

AN XY:

727190

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000134

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.0000773

Gnomad4 OTH exome

AF:

0.0000828

GnomAD4 genome

AF:

0.0000395

AC:

AN:

152054

Hom.:

Cov.:

AF XY:

0.0000539

AC XY:

AN XY:

74250

show subpopulations

Gnomad4 AFR

AF:

0.0000483

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000734

Hom.:

Bravo

AF:

0.0000831

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000349

AC:

ExAC

AF:

0.0000824

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 24, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.664G>A (p.G222S) alteration is located in exon 10 (coding exon 10) of the SSBP3 gene. This alteration results from a G to A substitution at nucleotide position 664, causing the glycine (G) at amino acid position 222 to be replaced by a serine (S). 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

0.073

BayesDel_addAF

Uncertain

0.075

BayesDel_noAF

Uncertain

0.12

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.12

T;.;D;.;.;.;.

Eigen

Uncertain

0.43

Eigen_PC

Uncertain

0.44

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Benign

0.82

T;T;T;T;T;T;T

M_CAP

Benign

0.017

MetaRNN

Benign

0.41

T;T;T;T;T;T;T

MetaSVM

Benign

-0.40

MutationAssessor

Uncertain

2.4

.;.;M;.;.;.;.

PrimateAI

Pathogenic

0.81

PROVEAN

Uncertain

-3.4

.;D;D;D;D;D;D

REVEL

Uncertain

0.34

Sift

Uncertain

0.014

.;D;D;D;D;D;D

Sift4G

Benign

0.083

T;T;T;T;T;T;D

Polyphen

0.77, 1.0, 0.85

.;.;P;D;P;.;.

Vest4

0.81, 0.85, 0.81, 0.85

MVP

0.26

MPC

1.3

ClinPred

0.33

GERP RS

3.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.63

gMVP

0.69

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over