Genetic Variant NM_012444.3:c.857T>C (chr20-57339001-T-C) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_012444.3(SPO11):c.857T>C(p.Met286Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

SPO11
NM_012444.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.59

Variant links:

Genes affected

SPO11 (HGNC:11250): (SPO11 initiator of meiotic double strand breaks) Meiotic recombination and chromosome segregation require the formation of double-strand breaks (DSBs) in paired chromosome homologs. During meiosis in yeast, a meiotic recombination protein is covalently-linked to the 5' end of DSBs and is essential for the formation of DSBs. The protein encoded by this gene is similar in sequence and conserved features to the yeast meiotic recombination protein. The encoded protein belongs to the TOP6A protein family. Several transcript variants encoding different isoforms have been found for this gene, but the full-length nature of only two of them have been described. [provided by RefSeq, Jul 2008]

SPO11 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.854

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SPO11	NM_012444.3 link	c.857T>C	p.Met286Thr	missense_variant	Exon 10 of 13	ENST00000371263.8	NP_036576.1	Q9Y5K1-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SPO11	ENST00000371263.8 link	c.857T>C	p.Met286Thr	missense_variant	Exon 10 of 13	1	NM_012444.3	ENSP00000360310.3		Q9Y5K1-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000459

AC:

AN:

217850

Hom.:

AF XY:

0.00000841

AC XY:

AN XY:

118840

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000426

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

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1340340

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

669002

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jul 09, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.857T>C (p.M286T) alteration is located in exon 10 (coding exon 10) of the SPO11 gene. This alteration results from a T to C substitution at nucleotide position 857, causing the methionine (M) at amino acid position 286 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

0.69

BayesDel_addAF

Pathogenic

0.20

BayesDel_noAF

Pathogenic

0.17

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.55

D;.;.;.

Eigen

Pathogenic

0.83

Eigen_PC

Pathogenic

0.80

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.89

D;D;D;D

M_CAP

Benign

0.054

MetaRNN

Pathogenic

0.85

D;D;D;D

MetaSVM

Benign

-0.45

MutationAssessor

Pathogenic

3.4

M;.;.;.

PrimateAI

Uncertain

0.76

PROVEAN

Uncertain

-4.0

D;D;D;D

REVEL

Uncertain

0.62

Sift

Uncertain

0.0010

D;D;D;D

Sift4G

Uncertain

0.0070

D;D;D;D

Polyphen

0.98

D;D;.;.

Vest4

0.92

MutPred

0.64

Gain of ubiquitination at K290 (P = 0.0741);.;.;.;

MVP

0.64

MPC

0.33

ClinPred

0.99

GERP RS

5.6

Varity_R

0.75

gMVP

0.89

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

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