Genetic Variant SPATA31F1:p.Cys1318Tyr (chr9-34723287-C-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

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

The NM_001141917.2(SPATA31F1):c.3953G>A(p.Cys1318Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000143 in 1,399,424 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

SPATA31F1
NM_001141917.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.15

Variant links:

Genes affected

SPATA31F1 (HGNC:41911): (SPATA31 subfamily F member 1) Located in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

SPATA31F1 links:

PHF24 (HGNC:29180): (PHD finger protein 24) Predicted to enable metal ion binding activity. Predicted to act upstream of or within several processes, including detection of mechanical stimulus involved in sensory perception of pain; gamma-aminobutyric acid signaling pathway; and regulation of GABAergic synaptic transmission. [provided by Alliance of Genome Resources, Apr 2022]

PHF24 links:

ENSG00000288583 (HGNC:):

ENSG00000288583 links:

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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=0.3920995).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein
SPATA31F1	NM_001141917.2 link	c.3953G>A	p.Cys1318Tyr	missense_variant	Exon 4 of 4	ENST00000378788.4	NP_001135389.1
PHF24	XM_047423102.1 link	c.133+20249C>T		intron_variant	Intron 4 of 11		XP_047279058.1
PHF24	XM_047423103.1 link	c.70+20249C>T		intron_variant	Intron 2 of 9		XP_047279059.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FAM205A	ENST00000378788.4 link	c.3953G>A	p.Cys1318Tyr	missense_variant	Exon 4 of 4	2	NM_001141917.2	ENSP00000417711.1		Q6ZU69
ENSG00000288583	ENST00000664167.1 link	n.86+20249C>T		intron_variant	Intron 1 of 1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000143

AC:

AN:

1399424

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

690220

show subpopulations

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:

0.00000185

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 08, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.3953G>A (p.C1318Y) alteration is located in exon 4 (coding exon 4) of the FAM205A gene. This alteration results from a G to A substitution at nucleotide position 3953, causing the cysteine (C) at amino acid position 1318 to be replaced by a tyrosine (Y). 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

Uncertain

0.34

BayesDel_addAF

Benign

-0.055

BayesDel_noAF

Benign

-0.32

CADD

Benign

DANN

Benign

0.97

DEOGEN2

Benign

0.039

Eigen

Benign

-0.12

Eigen_PC

Benign

-0.34

FATHMM_MKL

Benign

0.088

LIST_S2

Benign

0.72

M_CAP

Benign

0.043

MetaRNN

Benign

0.39

MetaSVM

Benign

-0.95

MutationAssessor

Benign

1.8

PrimateAI

Benign

0.46

PROVEAN

Pathogenic

-4.9

REVEL

Benign

0.099

Sift

Uncertain

0.0010

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.48

MutPred

0.38

Gain of phosphorylation at Y1314 (P = 0.136);

MVP

0.37

ClinPred

0.98

GERP RS

2.8

Varity_R

0.43

gMVP

0.19

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over