chr6-31624284-C-T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_004638.4(PRRC2A):​c.314C>T​(p.Pro105Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,613,698 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

PRRC2A
NM_004638.4 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.384

Publications

1 publications found
Variant links:
Genes affected
PRRC2A (HGNC:13918): (proline rich coiled-coil 2A) A cluster of genes, BAT1-BAT5, has been localized in the vicinity of the genes for TNF alpha and TNF beta. These genes are all within the human major histocompatibility complex class III region. This gene has microsatellite repeats which are associated with the age-at-onset of insulin-dependent diabetes mellitus (IDDM) and possibly thought to be involved with the inflammatory process of pancreatic beta-cell destruction during the development of IDDM. This gene is also a candidate gene for the development of rheumatoid arthritis. Two transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Dec 2010]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.038396448).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PRRC2ANM_004638.4 linkc.314C>T p.Pro105Leu missense_variant Exon 4 of 31 ENST00000376033.3 NP_004629.3 P48634-1A0A1U9X974
PRRC2ANM_080686.3 linkc.314C>T p.Pro105Leu missense_variant Exon 4 of 31 NP_542417.2 P48634-1A0A1U9X974
PRRC2AXM_047419336.1 linkc.314C>T p.Pro105Leu missense_variant Exon 4 of 30 XP_047275292.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PRRC2AENST00000376033.3 linkc.314C>T p.Pro105Leu missense_variant Exon 4 of 31 1 NM_004638.4 ENSP00000365201.2 P48634-1
PRRC2AENST00000376007.8 linkc.314C>T p.Pro105Leu missense_variant Exon 4 of 31 1 ENSP00000365175.4 P48634-1
ENSG00000289282ENST00000687518.1 linkc.60C>T p.Ala20Ala synonymous_variant Exon 2 of 5 ENSP00000509222.1 A0A8I5QKQ9
PRRC2AENST00000469577.5 linkn.159C>T non_coding_transcript_exon_variant Exon 2 of 8 5

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152204
Hom.:
0
Cov.:
32
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000161
AC:
4
AN:
248536
AF XY:
0.0000148
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.000100
Gnomad EAS exome
AF:
0.0000545
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000894
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000274
AC:
4
AN:
1461494
Hom.:
0
Cov.:
33
AF XY:
0.00000138
AC XY:
1
AN XY:
727012
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33478
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.0000383
AC:
1
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53090
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5758
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111970
Other (OTH)
AF:
0.0000331
AC:
2
AN:
60382
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.513
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152204
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74358
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41456
American (AMR)
AF:
0.00
AC:
0
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5202
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000868
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Oct 27, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.314C>T (p.P105L) alteration is located in exon 4 (coding exon 3) of the PRRC2A gene. This alteration results from a C to T substitution at nucleotide position 314, causing the proline (P) at amino acid position 105 to be replaced by a leucine (L). 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
0.076
BayesDel_addAF
Benign
-0.35
T
BayesDel_noAF
Benign
-0.57
CADD
Benign
19
DANN
Benign
0.94
DEOGEN2
Benign
0.028
T;T
Eigen
Benign
-0.57
Eigen_PC
Benign
-0.43
FATHMM_MKL
Uncertain
0.78
D
LIST_S2
Uncertain
0.89
.;D
M_CAP
Benign
0.0045
T
MetaRNN
Benign
0.038
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.69
N;N
PhyloP100
0.38
PrimateAI
Benign
0.42
T
PROVEAN
Uncertain
-3.8
D;D
REVEL
Benign
0.042
Sift
Benign
0.13
T;T
Sift4G
Benign
0.36
T;T
Polyphen
0.0080
B;B
Vest4
0.19
MutPred
0.32
Loss of glycosylation at P105 (P = 0.0228);Loss of glycosylation at P105 (P = 0.0228);
MVP
0.043
MPC
0.98
ClinPred
0.095
T
GERP RS
0.76
PromoterAI
0.016
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.6
Varity_R
0.14
gMVP
0.37
Mutation Taster
=89/11
polymorphism

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

Other links and lift over

dbSNP: rs755147720; hg19: chr6-31592061; COSMIC: COSV63224878; COSMIC: COSV63224878; API