3-133807769-C-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001379313.1(SRPRB):c.273C>A(p.Asp91Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000471 in 1,612,496 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000049 ( 0 hom. )

Consequence

SRPRB
NM_001379313.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.629

Variant links:

Genes affected

SRPRB (HGNC:24085): (SRP receptor subunit beta) The protein encoded by this gene has similarity to mouse protein which is a subunit of the signal recognition particle receptor (SR). This subunit is a transmembrane GTPase belonging to the GTPase superfamily. It anchors alpha subunit, a peripheral membrane GTPase, to the ER membrane. SR is required for the cotranslational targeting of both secretory and membrane proteins to the ER membrane. [provided by RefSeq, Jul 2008]

SRPRB links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.055803925).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
SRPRB	NM_001379313.1 linkuse as main transcript	c.273C>A	p.Asp91Glu	missense_variant	3/7	ENST00000678299.1
SRPRB	NM_021203.4 linkuse as main transcript	c.273C>A	p.Asp91Glu	missense_variant	4/8
SRPRB	NR_163491.1 linkuse as main transcript	n.307C>A		non_coding_transcript_exon_variant	3/8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
SRPRB	ENST00000678299.1 linkuse as main transcript	c.273C>A	p.Asp91Glu	missense_variant	3/7		NM_001379313.1	P1
SRPRB	ENST00000466490.7 linkuse as main transcript	c.273C>A	p.Asp91Glu	missense_variant	4/8	5		P1
SRPRB	ENST00000484684.1 linkuse as main transcript	c.273C>A	p.Asp91Glu	missense_variant	3/3	2
SRPRB	ENST00000494297.5 linkuse as main transcript	n.175C>A		non_coding_transcript_exon_variant	2/6	2

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152116

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000560

AC:

AN:

249884

Hom.:

AF XY:

0.0000889

AC XY:

AN XY:

135034

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

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:

0.000123

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000486

AC:

AN:

1460380

Hom.:

Cov.:

AF XY:

0.0000592

AC XY:

AN XY:

726468

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:

0.0000630

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000329

AC:

AN:

152116

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74300

show subpopulations

Gnomad4 AFR

AF:

0.0000241

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:

0.0000588

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000378

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000906

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000218

EpiControl

AF:

0.000296

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

Apr 13, 2022

The c.273C>A (p.D91E) alteration is located in exon 4 (coding exon 3) of the SRPRB gene. This alteration results from a C to A substitution at nucleotide position 273, causing the aspartic acid (D) at amino acid position 91 to be replaced by a glutamic acid (E). 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

0.14

BayesDel_addAF

Benign

-0.44

BayesDel_noAF

Benign

-0.63

Cadd

Benign

Dann

Benign

0.97

DEOGEN2

Benign

0.0042

T;T

Eigen

Benign

-0.80

Eigen_PC

Benign

-0.65

FATHMM_MKL

Benign

0.64

LIST_S2

Benign

0.72

T;T

M_CAP

Benign

0.0060

MetaRNN

Benign

0.056

T;T

MetaSVM

Benign

-0.98

MutationAssessor

Benign

0.15

N;.

MutationTaster

Benign

0.88

PrimateAI

Uncertain

0.55

PROVEAN

Benign

0.34

N;N

REVEL

Benign

0.10

Sift

Benign

0.92

T;T

Sift4G

Benign

1.0

T;T

Polyphen

0.0010

B;.

Vest4

0.39

MutPred

0.40

Loss of loop (P = 0.0203);Loss of loop (P = 0.0203);

MVP

0.45

MPC

0.19

ClinPred

0.029

GERP RS

-1.6

Varity_R

0.034

gMVP

0.16

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