3-133806614-T-C

Variant summary

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

The NM_001379313.1(SRPRB):c.160T>C(p.Trp54Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000477 in 1,613,934 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000032 ( 0 hom. )

Consequence

SRPRB
NM_001379313.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.07

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 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=0.18676695).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
SRPRB	NM_001379313.1 linkuse as main transcript	c.160T>C	p.Trp54Arg	missense_variant	2/7	ENST00000678299.1
SRPRB	NM_021203.4 linkuse as main transcript	c.160T>C	p.Trp54Arg	missense_variant	3/8
SRPRB	NR_163491.1 linkuse as main transcript	n.194T>C		non_coding_transcript_exon_variant	2/8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
SRPRB	ENST00000678299.1 linkuse as main transcript	c.160T>C	p.Trp54Arg	missense_variant	2/7		NM_001379313.1	P1
SRPRB	ENST00000466490.7 linkuse as main transcript	c.160T>C	p.Trp54Arg	missense_variant	3/8	5		P1
SRPRB	ENST00000484684.1 linkuse as main transcript	c.160T>C	p.Trp54Arg	missense_variant	2/3	2
SRPRB	ENST00000494297.5 linkuse as main transcript	n.62T>C		non_coding_transcript_exon_variant	1/6	2

Frequencies

GnomAD3 genomes

AF:

0.000197

AC:

AN:

152250

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000675

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.0000596

AC:

AN:

251484

Hom.:

AF XY:

0.0000441

AC XY:

AN XY:

135918

show subpopulations

Gnomad AFR exome

AF:

0.000738

Gnomad AMR exome

AF:

0.0000867

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000322

AC:

AN:

1461684

Hom.:

Cov.:

AF XY:

0.0000275

AC XY:

AN XY:

727130

show subpopulations

Gnomad4 AFR exome

AF:

0.00102

Gnomad4 AMR exome

AF:

0.000112

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:

0.00

Gnomad4 OTH exome

AF:

0.000132

GnomAD4 genome

AF:

0.000197

AC:

AN:

152250

Hom.:

Cov.:

AF XY:

0.000188

AC XY:

AN XY:

74378

show subpopulations

Gnomad4 AFR

AF:

0.000675

Gnomad4 AMR

AF:

0.000131

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

Alfa

AF:

0.0000657

Hom.:

Bravo

AF:

0.000298

ESP6500AA

AF:

0.00113

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000494

AC:

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

Feb 06, 2023

The c.160T>C (p.W54R) alteration is located in exon 3 (coding exon 2) of the SRPRB gene. This alteration results from a T to C substitution at nucleotide position 160, causing the tryptophan (W) at amino acid position 54 to be replaced by an arginine (R). 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

Pathogenic

0.80

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.14

Cadd

Pathogenic

Dann

Uncertain

0.99

DEOGEN2

Benign

0.19

T;T

Eigen

Uncertain

0.45

Eigen_PC

Uncertain

0.45

FATHMM_MKL

Benign

0.75

LIST_S2

Benign

0.60

T;T

M_CAP

Benign

0.033

MetaRNN

Benign

0.19

T;T

MetaSVM

Benign

-0.68

MutationAssessor

Uncertain

2.4

M;.

MutationTaster

Benign

0.99

PrimateAI

Uncertain

0.62

PROVEAN

Pathogenic

-6.5

D;D

REVEL

Benign

0.22

Sift

Uncertain

0.0030

D;D

Sift4G

Uncertain

0.014

D;D

Polyphen

0.98

D;.

Vest4

0.73

MutPred

0.66

Gain of disorder (P = 0.0098);Gain of disorder (P = 0.0098);

MVP

0.84

MPC

0.66

ClinPred

0.30

GERP RS

5.2

Varity_R

0.69

gMVP

0.73

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