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GeneBe

12-11268104-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 4P and 4B. PM2PM5BP4_Strong

The NM_001394862.1(PRB3):c.145C>G(p.Arg49Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,457,174 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/17 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R49C) has been classified as Pathogenic.

Frequency

Genomes: 𝑓 0.0 ( 0 hom., cov: 28)
Exomes 𝑓: 0.0000014 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

PRB3
NM_001394862.1 missense

Scores

15

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.57
Variant links:
Genes affected
PRB3 (HGNC:9339): (proline rich protein BstNI subfamily 3) This gene encodes a member of the heterogeneous family of basic, proline-rich, human salivary glycoproteins. Multiple alleles of this gene exhibiting variations in the length of the tandem repeats have been identified. The reference genome encodes the "Long" allele. The protein isoforms encoded by this gene are recognized as the "first line of oral defense" against the detrimental effects of polyphenols in the diet and pathogen infections. This gene is located in a cluster of closely related salivary proline-rich proteins on chromosome 12. [provided by RefSeq, Nov 2015]

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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;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr12-11268104-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 13733.Status of the report is no_assertion_criteria_provided, 0 stars.
BP4
Computational evidence support a benign effect (MetaRNN=0.0345982).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PRB3NM_001394862.1 linkuse as main transcriptc.145C>G p.Arg49Gly missense_variant 3/4 ENST00000538488.3
LOC107987435XR_007063209.1 linkuse as main transcriptn.761-9366G>C intron_variant, non_coding_transcript_variant
PRB3NM_006249.5 linkuse as main transcriptc.145C>G p.Arg49Gly missense_variant 3/5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PRB3ENST00000538488.3 linkuse as main transcriptc.145C>G p.Arg49Gly missense_variant 3/45 NM_001394862.1 P1
PRB3ENST00000539835.1 linkuse as main transcriptn.152C>G non_coding_transcript_exon_variant 2/22

Frequencies

GnomAD3 genomes
AF:
0.00
AC:
0
AN:
143676
Hom.:
0
Cov.:
28
FAILED QC
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000401
AC:
1
AN:
249400
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135256
show subpopulations
Gnomad AFR exome
AF:
0.0000647
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1457174
Hom.:
0
Cov.:
41
AF XY:
0.00
AC XY:
0
AN XY:
724810
show subpopulations
Gnomad4 AFR exome
AF:
0.0000306
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:
0.00
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
143676
Hom.:
0
Cov.:
28
AF XY:
0.00
AC XY:
0
AN XY:
69974
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:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.00000826
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.32
T
BayesDel_noAF
Benign
-0.52
Cadd
Benign
0.60
Dann
Benign
0.28
DEOGEN2
Benign
0.0018
T;.
Eigen
Benign
-1.9
Eigen_PC
Benign
-2.0
FATHMM_MKL
Benign
0.00027
N
M_CAP
Benign
0.00070
T
MetaRNN
Benign
0.035
T;T
MetaSVM
Benign
-0.95
T
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.39
T
PROVEAN
Benign
2.4
N;N
REVEL
Benign
0.018
Sift4G
Benign
0.47
T;T
Vest4
0.072
MutPred
0.39
Gain of catalytic residue at P51 (P = 0);Gain of catalytic residue at P51 (P = 0);
MVP
0.040
MPC
0.43
ClinPred
0.054
T
GERP RS
-0.37
gMVP
0.17

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: rs71455367; hg19: chr12-11421038; API