Variant 20-1551715-G-A details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_178460.3(SIRPD):c.397C>T(p.Arg133Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000211 in 1,613,594 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. R133Q) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000013 ( 1 hom., cov: 32)

Exomes 𝑓: 0.000022 ( 0 hom. )

Consequence

SIRPD
NM_178460.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.487

Variant links:

Genes affected

SIRPD (HGNC:16248): (signal regulatory protein delta) Predicted to be located in extracellular region. Predicted to be active in plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

SIRPD links:

(HGNC:):

links:

Genome browser will be placed here

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=0.3150459).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SIRPD	NM_178460.3 linkuse as main transcript	c.397C>T	p.Arg133Trp	missense_variant	2/4	ENST00000381623.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
SIRPD	ENST00000381623.4 linkuse as main transcript	c.397C>T	p.Arg133Trp	missense_variant	2/4	1	NM_178460.3	A2
	ENST00000453770.1 linkuse as main transcript	n.778C>T		non_coding_transcript_exon_variant	3/6
SIRPD	ENST00000381621.5 linkuse as main transcript	c.397C>T	p.Arg133Trp	missense_variant	2/4	3		P2
SIRPD	ENST00000429387.5 linkuse as main transcript	c.69+156C>T		intron_variant		3

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152148

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

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

GnomAD3 exomes

AF:

0.0000239

AC:

AN:

250768

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:

0.0000353

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000219

AC:

AN:

1461446

Hom.:

Cov.:

AF XY:

0.0000261

AC XY:

AN XY:

727012

show subpopulations

Gnomad4 AFR exome

AF:

0.000120

Gnomad4 AMR exome

AF:

0.0000671

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:

0.0000180

Gnomad4 OTH exome

AF:

0.0000828

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152148

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74334

show subpopulations

Gnomad4 AFR

AF:

0.0000483

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:

0.0000302

ExAC

AF:

0.0000330

AC:

EpiCase

AF:

0.00

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

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jul 06, 2022

The c.397C>T (p.R133W) alteration is located in exon 2 (coding exon 2) of the SIRPD gene. This alteration results from a C to T substitution at nucleotide position 397, causing the arginine (R) at amino acid position 133 to be replaced by a tryptophan (W). 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

0.11

BayesDel_addAF

Benign

-0.30

BayesDel_noAF

Benign

-0.50

Cadd

Benign

Dann

Uncertain

1.0

Eigen

Benign

-0.91

Eigen_PC

Benign

-0.99

FATHMM_MKL

Benign

0.013

LIST_S2

Benign

0.14

T;T

M_CAP

Benign

0.0074

MetaRNN

Benign

0.32

T;T

MetaSVM

Benign

-0.94

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.23

PROVEAN

Benign

-2.3

N;N

REVEL

Benign

0.070

Sift

Uncertain

0.019

D;D

Sift4G

Uncertain

0.018

D;D

Polyphen

0.0010

.;B

Vest4

0.32

MutPred

0.34

Loss of disorder (P = 0.0127);Loss of disorder (P = 0.0127);

MVP

0.43

MPC

0.25

ClinPred

0.29

GERP RS

0.20

Varity_R

0.14

gMVP

0.25

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.19

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