17-66687137-A-G

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM1BS2

The NM_002737.3(PRKCA):​c.556A>G​(p.Met186Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000812 in 1,612,954 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M186L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000086 ( 0 hom. )

Consequence

PRKCA
NM_002737.3 missense

Scores

6
10
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.95

Publications

3 publications found
Variant links:
Genes affected
PRKCA (HGNC:9393): (protein kinase C alpha) Protein kinase C (PKC) is a family of serine- and threonine-specific protein kinases that can be activated by calcium and the second messenger diacylglycerol. PKC family members phosphorylate a wide variety of protein targets and are known to be involved in diverse cellular signaling pathways. PKC family members also serve as major receptors for phorbol esters, a class of tumor promoters. Each member of the PKC family has a specific expression profile and is believed to play a distinct role in cells. The protein encoded by this gene is one of the PKC family members. This kinase has been reported to play roles in many different cellular processes, such as cell adhesion, cell transformation, cell cycle checkpoint, and cell volume control. Knockout studies in mice suggest that this kinase may be a fundamental regulator of cardiac contractility and Ca(2+) handling in myocytes. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

PM1
In a binding_site (size 0) in uniprot entity KPCA_HUMAN
BS2
High AC in GnomAd4 at 6 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PRKCANM_002737.3 linkc.556A>G p.Met186Val missense_variant Exon 6 of 17 ENST00000413366.8 NP_002728.2 P17252L7RSM7Q7Z727

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PRKCAENST00000413366.8 linkc.556A>G p.Met186Val missense_variant Exon 6 of 17 1 NM_002737.3 ENSP00000408695.3 P17252
PRKCAENST00000578063.5 linkn.556A>G non_coding_transcript_exon_variant Exon 6 of 10 1 ENSP00000462087.1 J3KRN5
PRKCAENST00000284384.6 linkn.*158A>G non_coding_transcript_exon_variant Exon 7 of 15 5 ENSP00000284384.6 J3KN97
PRKCAENST00000284384.6 linkn.*158A>G 3_prime_UTR_variant Exon 7 of 15 5 ENSP00000284384.6 J3KN97

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152168
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:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000955
AC:
24
AN:
251254
AF XY:
0.000133
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 FIN exome
AF:
0.0000925
Gnomad NFE exome
AF:
0.000141
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000856
AC:
125
AN:
1460786
Hom.:
0
Cov.:
30
AF XY:
0.000105
AC XY:
76
AN XY:
726792
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33446
American (AMR)
AF:
0.00
AC:
0
AN:
44696
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26120
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39692
South Asian (SAS)
AF:
0.000232
AC:
20
AN:
86212
European-Finnish (FIN)
AF:
0.000112
AC:
6
AN:
53406
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
0.0000837
AC:
93
AN:
1111088
Other (OTH)
AF:
0.0000994
AC:
6
AN:
60360
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.483
Heterozygous variant carriers
0
6
13
19
26
32
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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:
0.0000394
AC:
6
AN:
152168
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74344
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41452
American (AMR)
AF:
0.00
AC:
0
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000735
AC:
5
AN:
68014
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.508
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

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:
0.0000494
Hom.:
0
Bravo
AF:
0.0000378
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000519
AC:
2
ExAC
AF:
0.000140
AC:
17
EpiCase
AF:
0.00
EpiControl
AF:
0.000178

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Dec 16, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.556A>G (p.M186V) alteration is located in exon 6 (coding exon 6) of the PRKCA gene. This alteration results from a A to G substitution at nucleotide position 556, causing the methionine (M) at amino acid position 186 to be replaced by a valine (V). 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
0.93
BayesDel_addAF
Uncertain
0.099
D
BayesDel_noAF
Pathogenic
0.16
CADD
Pathogenic
28
DANN
Uncertain
0.99
DEOGEN2
Pathogenic
0.81
D
Eigen
Uncertain
0.62
Eigen_PC
Uncertain
0.62
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.98
D
M_CAP
Uncertain
0.12
D
MetaRNN
Uncertain
0.60
D
MetaSVM
Uncertain
-0.025
T
MutationAssessor
Benign
1.3
L
PhyloP100
8.9
PrimateAI
Uncertain
0.74
T
PROVEAN
Uncertain
-3.8
D
REVEL
Pathogenic
0.71
Sift
Benign
0.042
D
Sift4G
Uncertain
0.024
D
Polyphen
0.71
P
Vest4
0.63
MutPred
0.53
Loss of catalytic residue at M186 (P = 0.0141);
MVP
0.94
MPC
1.5
ClinPred
0.28
T
GERP RS
5.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.49
gMVP
0.60
Mutation Taster
=63/37
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: rs200732611; hg19: chr17-64683255; API