chr20-49905711-G-C

Position:

• chr20-49905711-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_006038.4(SPATA2):​c.1471C>G​(p.Pro491Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: SPATA2 NM_006038.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.56

Genes affected

SPATA2 (HGNC:14681): (spermatogenesis associated 2) Enables signaling receptor complex adaptor activity and ubiquitin-specific protease binding activity. Involved in several processes, including protein deubiquitination; regulation of necroptotic process; and regulation of tumor necrosis factor-mediated signaling pathway. Located in cytoplasm; fibrillar center; and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

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=0.35750136).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SPATA2	NM_006038.4	c.1471C>G	p.Pro491Ala	missense_variant	3/3	ENST00000289431.10	NP_006029.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SPATA2	ENST00000289431.10	c.1471C>G	p.Pro491Ala	missense_variant	3/3	1	NM_006038.4	ENSP00000289431	P1
SPATA2	ENST00000422556.1	c.1471C>G	p.Pro491Ala	missense_variant	3/3	2		ENSP00000416799	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

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

Jul 26, 2022

The c.1471C>G (p.P491A) alteration is located in exon 3 (coding exon 2) of the SPATA2 gene. This alteration results from a C to G substitution at nucleotide position 1471, causing the proline (P) at amino acid position 491 to be replaced by an alanine (A). 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	0.12
BayesDel_addAF	Uncertain	0.020	T
BayesDel_noAF	Benign	-0.21
CADD	Benign	22
DANN	Uncertain	0.99
DEOGEN2	Benign	0.026	T;T
Eigen	Uncertain	0.24
Eigen_PC	Uncertain	0.28
FATHMM_MKL	Uncertain	0.88	D
LIST_S2	Benign	0.83	.;T
M_CAP	Benign	0.019	T
MetaRNN	Benign	0.36	T;T
MetaSVM	Benign	-0.77	T
MutationAssessor	Uncertain	2.2	M;M
MutationTaster	Benign	0.58	D;D;D
PrimateAI	Benign	0.46	T
PROVEAN	Benign	-1.8	N;N
REVEL	Benign	0.21
Sift	Benign	0.066	T;T
Sift4G	Benign	0.14	T;T
Polyphen		0.79	P;P
Vest4		0.45
MutPred		0.71		Loss of loop (P = 0.0288);Loss of loop (P = 0.0288);
MVP		0.27
MPC		0.79
ClinPred		0.57	D
GERP RS		5.1
Varity_R		0.055
gMVP		0.12

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr20-48522248;