20-1921595-G-A

Position:

chr20-1921595-G-A

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_001040023.2(SIRPA):c.637G>A(p.Ala213Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000395 in 1,614,218 control chromosomes in the GnomAD database, including 6 homozygotes. 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 Benign (★).

Frequency

Genomes: 𝑓 0.00047 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00039 ( 6 hom. )

Consequence

SIRPA
NM_001040023.2 missense

Scores

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.218

Variant links:

Genes affected

SIRPA (HGNC:9662): (signal regulatory protein alpha) The protein encoded by this gene is a member of the signal-regulatory-protein (SIRP) family, and also belongs to the immunoglobulin superfamily. SIRP family members are receptor-type transmembrane glycoproteins known to be involved in the negative regulation of receptor tyrosine kinase-coupled signaling processes. This protein can be phosphorylated by tyrosine kinases. The phospho-tyrosine residues of this PTP have been shown to recruit SH2 domain containing tyrosine phosphatases (PTP), and serve as substrates of PTPs. This protein was found to participate in signal transduction mediated by various growth factor receptors. CD47 has been demonstrated to be a ligand for this receptor protein. This gene and its product share very high similarity with several other members of the SIRP family. These related genes are located in close proximity to each other on chromosome 20p13. Multiple alternatively spliced transcript variants have been determined for this gene. [provided by RefSeq, Jul 2008]

SIRPA links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.004272461).

BP6

Variant 20-1921595-G-A is Benign according to our data. Variant chr20-1921595-G-A is described in ClinVar as [Benign]. Clinvar id is 711169.Status of the report is criteria_provided_single_submitter, 1 stars.

BS2

High Homozygotes in GnomAdExome4 at 6 gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SIRPA	NM_001040023.2 linkuse as main transcript	c.637G>A	p.Ala213Thr	missense_variant	3/8	ENST00000358771.5	NP_001035112.1	P78324-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
SIRPA	ENST00000358771.5 linkuse as main transcript	c.637G>A	p.Ala213Thr	missense_variant	3/8	1	NM_001040023.2	ENSP00000351621.4	P78324-1
SIRPA	ENST00000356025.7 linkuse as main transcript	c.637G>A	p.Ala213Thr	missense_variant	4/9	1		ENSP00000348307.3	P78324-1
SIRPA	ENST00000400068.7 linkuse as main transcript	c.637G>A	p.Ala213Thr	missense_variant	4/9	1		ENSP00000382941.4	P78324-1
SIRPA	ENST00000622179.4 linkuse as main transcript	c.637G>A	p.Ala213Thr	missense_variant	4/9	5		ENSP00000478763.1	P78324-2

Frequencies

GnomAD3 genomes

AF:

0.000466

AC:

AN:

152210

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00419

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:

0.000956

GnomAD3 exomes

AF:

0.00195

AC:

490

AN:

251494

Hom.:

AF XY:

0.00130

AC XY:

177

AN XY:

135920

show subpopulations

Gnomad AFR exome

AF:

0.000185

Gnomad AMR exome

AF:

0.0140

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000387

AC:

566

AN:

1461890

Hom.:

Cov.:

AF XY:

0.000282

AC XY:

205

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

Gnomad4 AMR exome

AF:

0.0123

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000348

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.000182

GnomAD4 genome

AF:

0.000466

AC:

AN:

152328

Hom.:

Cov.:

AF XY:

0.000550

AC XY:

AN XY:

74488

show subpopulations

Gnomad4 AFR

AF:

0.000120

Gnomad4 AMR

AF:

0.00418

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:

0.000946

Alfa

AF:

0.0000778

Hom.:

Bravo

AF:

0.00107

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.00166

AC:

202

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Nov 15, 2017

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.090

BayesDel_addAF

Benign

-0.63

BayesDel_noAF

Benign

-0.67

CADD

Benign

2.9

DANN

Benign

0.63

DEOGEN2

Benign

0.022

T;.;T;T

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.031

LIST_S2

Benign

0.82

T;T;.;.

MetaRNN

Benign

0.0043

T;T;T;T

MetaSVM

Benign

-0.90

MutationAssessor

Benign

0.34

N;N;N;N

PrimateAI

Benign

0.34

PROVEAN

Benign

0.57

N;.;N;N

REVEL

Benign

0.036

Sift

Benign

0.50

T;.;T;T

Sift4G

Benign

1.0

T;T;T;T

Polyphen

0.14

B;B;B;B

Vest4

0.16

MVP

0.22

MPC

2.2

ClinPred

0.0059

GERP RS

-0.50

Varity_R

0.071

gMVP

0.36

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