chr9-131444211-T-G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 4P and 2B. PM1PM2BP4_Moderate

The NM_013318.4(PRRC2B):ā€‹c.496T>Gā€‹(p.Ser166Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000806 in 1,613,892 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 (ā˜…).

Frequency

Genomes: š‘“ 0.000013 ( 0 hom., cov: 32)
Exomes š‘“: 0.0000075 ( 0 hom. )

Consequence

PRRC2B
NM_013318.4 missense

Scores

5
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.54
Variant links:
Genes affected
PRRC2B (HGNC:28121): (proline rich coiled-coil 2B) Enables RNA binding activity. Predicted to be involved in cell differentiation. Predicted to act upstream of or within in utero embryonic development. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM1
In a modified_residue Phosphoserine (size 0) in uniprot entity PRC2B_HUMAN
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.23212793).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PRRC2BNM_013318.4 linkuse as main transcriptc.496T>G p.Ser166Ala missense_variant 6/32 ENST00000683519.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PRRC2BENST00000683519.1 linkuse as main transcriptc.496T>G p.Ser166Ala missense_variant 6/32 NM_013318.4 P2Q5JSZ5-1
ENST00000691540.1 linkuse as main transcriptc.239T>G p.Ile80Ser missense_variant 4/5 P1
PRRC2BENST00000684596.1 linkuse as main transcriptc.496T>G p.Ser166Ala missense_variant 6/32 P2Q5JSZ5-1
PRRC2BENST00000682501.1 linkuse as main transcriptc.496T>G p.Ser166Ala missense_variant 6/31 A2Q5JSZ5-5

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152200
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.000480
GnomAD3 exomes
AF:
0.00000401
AC:
1
AN:
249218
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135200
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:
0.00000885
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000753
AC:
11
AN:
1461692
Hom.:
0
Cov.:
31
AF XY:
0.00000688
AC XY:
5
AN XY:
727126
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
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:
0.00000899
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152200
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74354
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:
0.0000147
Gnomad4 OTH
AF:
0.000480
Alfa
AF:
0.0000579
Hom.:
0
Bravo
AF:
0.00000756

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 submitterclinical testingAmbry GeneticsAug 02, 2021The c.496T>G (p.S166A) alteration is located in exon 5 (coding exon 5) of the PRRC2B gene. This alteration results from a T to G substitution at nucleotide position 496, causing the serine (S) at amino acid position 166 to be replaced by an alanine (A). 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
0.12
BayesDel_addAF
Benign
-0.10
T
BayesDel_noAF
Benign
-0.38
CADD
Uncertain
25
DANN
Uncertain
0.99
Eigen
Uncertain
0.33
Eigen_PC
Uncertain
0.40
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.57
T;T;T
M_CAP
Benign
0.0067
T
MetaRNN
Benign
0.23
T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
2.0
M;.;M
MutationTaster
Benign
0.99
D;D;D
PrimateAI
Uncertain
0.58
T
PROVEAN
Benign
-1.1
N;.;N
REVEL
Benign
0.14
Sift4G
Benign
0.81
T;.;T
Polyphen
0.62
.;.;P
Vest4
0.30
MutPred
0.53
Loss of phosphorylation at S166 (P = 0.0132);Loss of phosphorylation at S166 (P = 0.0132);Loss of phosphorylation at S166 (P = 0.0132);
MVP
0.093
MPC
0.12
ClinPred
0.48
T
GERP RS
5.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.7
Varity_R
0.14
gMVP
0.42

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.

Other links and lift over

dbSNP: rs180921892; hg19: chr9-134319598; API