Genetic Variant SPRR2D:p.Pro28Leu (chr1-153040264-G-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_006945.5(SPRR2D):c.83C>T(p.Pro28Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,612,408 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

SPRR2D
NM_006945.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.945

Variant links:

Genes affected

SPRR2D (HGNC:11264): (small proline rich protein 2D) Predicted to be involved in keratinization. Predicted to act upstream of or within female gonad development and response to estradiol. Located in cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

SPRR2D links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.083173364).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SPRR2D	NM_006945.5 link	c.83C>T	p.Pro28Leu	missense_variant	Exon 2 of 2	ENST00000360379.4	NP_008876.3	P22532
SPRR2D	NM_001382248.1 link	c.83C>T	p.Pro28Leu	missense_variant	Exon 2 of 2		NP_001369177.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SPRR2D	ENST00000360379.4 link	c.83C>T	p.Pro28Leu	missense_variant	Exon 2 of 2	1	NM_006945.5	ENSP00000353542.3	P22532
SPRR2D	ENST00000368756.1 link	c.83C>T	p.Pro28Leu	missense_variant	Exon 3 of 3	2		ENSP00000357745.1	P22532
SPRR2D	ENST00000368757.1 link	c.83C>T	p.Pro28Leu	missense_variant	Exon 2 of 2	3		ENSP00000357746.1	P22532
SPRR2D	ENST00000368758.3 link	c.83C>T	p.Pro28Leu	missense_variant	Exon 2 of 2	2		ENSP00000357747.3	P22532

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152128

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00110

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1460280

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726442

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:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152128

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74342

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:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000151

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 08, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.83C>T (p.P28L) alteration is located in exon 2 (coding exon 1) of the SPRR2D gene. This alteration results from a C to T substitution at nucleotide position 83, causing the proline (P) at amino acid position 28 to be replaced by a leucine (L). 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

0.096

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.50

CADD

Benign

DANN

Benign

0.38

DEOGEN2

Benign

0.047

T;T;T;T

Eigen

Benign

-0.68

Eigen_PC

Benign

-0.72

FATHMM_MKL

Benign

0.17

LIST_S2

Benign

0.52

.;.;.;T

M_CAP

Benign

0.0036

MetaRNN

Benign

0.083

T;T;T;T

MetaSVM

Benign

-1.0

PROVEAN

Pathogenic

-5.5

D;D;D;D

REVEL

Benign

0.063

Sift4G

Benign

0.17

T;T;T;T

Polyphen

0.0040

B;B;B;B

Vest4

0.38

MutPred

0.17

Loss of glycosylation at P28 (P = 0.0227);Loss of glycosylation at P28 (P = 0.0227);Loss of glycosylation at P28 (P = 0.0227);Loss of glycosylation at P28 (P = 0.0227);

MVP

0.54

MPC

0.49

ClinPred

0.30

GERP RS

2.0

Varity_R

0.42

gMVP

0.0029

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