7-76400439-G-A

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_080744.2(SSC4D):c.322C>T(p.Pro108Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000142 in 1,607,102 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 0.000053 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00015 ( 0 hom. )

Consequence

SSC4D
NM_080744.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.02

Variant links:

Genes affected

SSC4D (HGNC:14461): (scavenger receptor cysteine rich family member with 4 domains) The scavenger receptor cysteine-rich (SRCR) superfamily is an ancient and highly conserved group of cell surface and/or secreted proteins, some of which are involved in the development of the immune system and the regulation of both innate and adaptive immune responses. Group B SRCR domains usually contain 8 regularly spaced cysteines that give rise to a well-defined intradomain disulfide-bond pattern.[supplied by OMIM, Apr 2004]

SSC4D links:

ZP3 (HGNC:13189): (zona pellucida glycoprotein 3) The zona pellucida is an extracellular matrix that surrounds the oocyte and early embryo. It is composed primarily of three or four glycoproteins with various functions during fertilization and preimplantation development. The protein encoded by this gene is a structural component of the zona pellucida and functions in primary binding and induction of the sperm acrosome reaction. The nascent protein contains a N-terminal signal peptide sequence, a conserved ZP domain, a C-terminal consensus furin cleavage site, and a transmembrane domain. It is hypothesized that furin cleavage results in release of the mature protein from the plasma membrane for subsequent incorporation into the zona pellucida matrix. However, the requirement for furin cleavage in this process remains controversial based on mouse studies. A variation in the last exon of this gene has previously served as the basis for an additional ZP3 locus; however, sequence and literature review reveals that there is only one full-length ZP3 locus in the human genome. Another locus encoding a bipartite transcript designated POMZP3 contains a duplication of the last four exons of ZP3, including the above described variation, and maps closely to this gene. [provided by RefSeq, Jul 2008]

ZP3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.32054543).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SSC4D	NM_080744.2 link	c.322C>T	p.Pro108Ser	missense_variant	Exon 4 of 11	ENST00000275560.4	NP_542782.1	Q8WTU2-1
SSC4D	XM_024446664.2 link	c.409C>T	p.Pro137Ser	missense_variant	Exon 5 of 12		XP_024302432.1
ZP3	NM_007155.6 link	c.-67+2642G>A		intron_variant	Intron 1 of 8		NP_009086.4	P21754-3
SSC4D	XM_017011750.2 link	c.-32-1642C>T		intron_variant	Intron 1 of 7		XP_016867239.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SSC4D	ENST00000275560.4 link	c.322C>T	p.Pro108Ser	missense_variant	Exon 4 of 11	1	NM_080744.2	ENSP00000275560.3		Q8WTU2-1
ZP3	ENST00000336517.8 link	c.-67+2642G>A		intron_variant	Intron 1 of 8	1		ENSP00000337310.4		P21754-3

Frequencies

GnomAD3 genomes

AF:

0.0000525

AC:

AN:

152256

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.000118

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000583

AC:

AN:

240060

Hom.:

AF XY:

0.0000686

AC XY:

AN XY:

131272

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000570

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000121

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000151

AC:

220

AN:

1454846

Hom.:

Cov.:

AF XY:

0.000149

AC XY:

108

AN XY:

723108

show subpopulations

Gnomad4 AFR exome

AF:

0.0000301

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000254

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000193

Gnomad4 OTH exome

AF:

0.0000666

GnomAD4 genome

AF:

0.0000525

AC:

AN:

152256

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74382

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.000118

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000901

Hom.:

Bravo

AF:

0.0000416

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000117

AC:

ExAC

AF:

0.0000744

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 13, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.322C>T (p.P108S) alteration is located in exon 4 (coding exon 3) of the SSC4D gene. This alteration results from a C to T substitution at nucleotide position 322, causing the proline (P) at amino acid position 108 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

0.14

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.31

CADD

Uncertain

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.098

Eigen

Uncertain

0.47

Eigen_PC

Uncertain

0.49

FATHMM_MKL

Uncertain

0.92

LIST_S2

Benign

0.49

M_CAP

Benign

0.033

MetaRNN

Benign

0.32

MetaSVM

Benign

-0.43

MutationAssessor

Benign

0.96

PrimateAI

Uncertain

0.62

PROVEAN

Pathogenic

-6.2

REVEL

Benign

0.29

Sift

Benign

0.058

Sift4G

Benign

0.13

Polyphen

0.97

Vest4

0.14

MVP

0.61

MPC

0.24

ClinPred

0.45

GERP RS

5.3

Varity_R

0.25

gMVP

0.47

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.19

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