7-100612964-A-G

Position:

• chr7-100612964-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP3

The NM_023948.5(MOSPD3):​c.173A>G​(p.Tyr58Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00000205 in 1,461,806 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: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: MOSPD3 NM_023948.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.78

Genes affected

MOSPD3 (HGNC:25078): (motile sperm domain containing 3) This gene encodes a multi-pass membrane protein with a major sperm protein (MSP) domain. The deletion of a similar mouse gene is associated with defective cardiac development and neonatal lethality. Alternate transcriptional splice variants, encoding different isoforms, have been described. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.83

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MOSPD3	NM_023948.5	c.173A>G	p.Tyr58Cys	missense_variant	1/5	ENST00000393950.7	NP_076438.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MOSPD3	ENST00000393950.7	c.173A>G	p.Tyr58Cys	missense_variant	1/5	1	NM_023948.5	ENSP00000377522.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1461806 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727216

Gnomad4 AFR exome AF: 0.00

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: 0.00000180

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

Alfa AF: 0.0000354 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 10, 2022

The c.173A>G (p.Y58C) alteration is located in exon 1 (coding exon 1) of the MOSPD3 gene. This alteration results from a A to G substitution at nucleotide position 173, causing the tyrosine (Y) at amino acid position 58 to be replaced by a cysteine (C). 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	0.88
BayesDel_addAF	Uncertain	0.095	D
BayesDel_noAF	Benign	-0.10
CADD	Pathogenic	28
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.93	D;.;D;D;.
Eigen	Benign	0.19
Eigen_PC	Benign	0.19
FATHMM_MKL	Uncertain	0.81	D
LIST_S2	Uncertain	0.93	.;D;D;.;D
M_CAP	Pathogenic	0.32	D
MetaRNN	Pathogenic	0.83	D;D;D;D;D
MetaSVM	Uncertain	-0.19	T
MutationAssessor	Benign	1.9	L;.;L;L;L
PrimateAI	Pathogenic	0.92	D
PROVEAN	Pathogenic	-8.2	D;D;D;D;D
REVEL	Uncertain	0.50
Sift	Pathogenic	0.0	D;D;D;D;D
Sift4G	Pathogenic	0.0	D;D;D;D;D
Polyphen		1.0	D;.;D;D;.
Vest4		0.76
MVP		0.80
MPC		1.2
ClinPred		1.0	D
GERP RS		2.8
Varity_R		0.90
gMVP		0.31

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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

Other links and lift over

dbSNP: rs1336311394; hg19: chr7-100210587; COSMIC: COSV56158671; COSMIC: COSV56158671;