Genetic Variant SPTY2D1:p.Arg467Gln (chr11-18614874-C-T) – ACMG Classification: Benign (-8 pts)

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_194285.3(SPTY2D1):c.1400G>A(p.Arg467Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000768 in 1,613,562 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R467W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00022 ( 1 hom., cov: 33)

Exomes 𝑓: 0.000062 ( 0 hom. )

Consequence

SPTY2D1
NM_194285.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.43

Variant links:

Genes affected

SPTY2D1 (HGNC:26818): (SPT2 chromatin protein domain containing 1) Enables DNA binding activity and histone binding activity. Involved in nucleosome organization; regulation of chromatin assembly; and regulation of transcription, DNA-templated. Located in nucleolus and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

SPTY2D1 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.004427254).

BS2

High AC in GnomAd4 at 33 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SPTY2D1	NM_194285.3 link	c.1400G>A	p.Arg467Gln	missense_variant	Exon 3 of 6	ENST00000336349.6	NP_919261.2	Q68D10-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SPTY2D1	ENST00000336349.6 link	c.1400G>A	p.Arg467Gln	missense_variant	Exon 3 of 6	1	NM_194285.3	ENSP00000337991.5		Q68D10-1
SPTY2D1	ENST00000536336.5 link	n.1532G>A		non_coding_transcript_exon_variant	Exon 3 of 4	2

Frequencies

GnomAD3 genomes

AF:

0.000217

AC:

AN:

152244

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.0252

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:

0.000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000479

AC:

AN:

250584

Hom.:

AF XY:

0.0000295

AC XY:

AN XY:

135488

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000579

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:

0.0000794

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.0000623

AC:

AN:

1461318

Hom.:

Cov.:

AF XY:

0.0000578

AC XY:

AN XY:

726902

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.0000447

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000747

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.000217

AC:

AN:

152244

Hom.:

Cov.:

AF XY:

0.000215

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:

0.000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000139

Hom.:

Bravo

AF:

0.000291

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000494

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Apr 28, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1400G>A (p.R467Q) alteration is located in exon 3 (coding exon 3) of the SPTY2D1 gene. This alteration results from a G to A substitution at nucleotide position 1400, causing the arginine (R) at amino acid position 467 to be replaced by a glutamine (Q). 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

0.087

BayesDel_addAF

Benign

-0.42

BayesDel_noAF

Benign

-0.64

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.0032

Eigen

Benign

-0.61

Eigen_PC

Benign

-0.53

FATHMM_MKL

Benign

0.34

LIST_S2

Benign

0.78

M_CAP

Benign

0.0069

MetaRNN

Benign

0.0044

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.0

PrimateAI

Benign

0.35

PROVEAN

Benign

-0.56

REVEL

Benign

0.045

Sift

Benign

0.33

Sift4G

Benign

0.35

Polyphen

0.070

Vest4

0.082

MVP

0.082

MPC

0.19

ClinPred

0.066

GERP RS

3.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.2

Varity_R

0.024

gMVP

0.29

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

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