rs138077430

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS1

The NM_015192.4(PLCB1):​c.3643C>T​(p.Pro1215Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000297 in 1,608,296 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00032 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00029 ( 0 hom. )

Consequence

PLCB1
NM_015192.4 missense

Scores

2
16

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:1

Conservation

PhyloP100: 0.936

Publications

5 publications found
Variant links:
Genes affected
PLCB1 (HGNC:15917): (phospholipase C beta 1) The protein encoded by this gene catalyzes the formation of inositol 1,4,5-trisphosphate and diacylglycerol from phosphatidylinositol 4,5-bisphosphate. This reaction uses calcium as a cofactor and plays an important role in the intracellular transduction of many extracellular signals. This gene is activated by two G-protein alpha subunits, alpha-q and alpha-11. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]
PLCB1 Gene-Disease associations (from GenCC):
  • genetic developmental and epileptic encephalopathy
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • developmental and epileptic encephalopathy, 12
    Inheritance: AR Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
  • infantile spasms
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • malignant migrating partial seizures of infancy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.018848449).
BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.000322 (49/152274) while in subpopulation NFE AF = 0.000603 (41/68030). AF 95% confidence interval is 0.000457. There are 0 homozygotes in GnomAd4. There are 23 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_015192.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PLCB1
NM_015192.4
MANE Select
c.3643C>Tp.Pro1215Ser
missense
Exon 32 of 32NP_056007.1Q9NQ66-1
PLCB1
NM_182734.3
c.*239C>T
3_prime_UTR
Exon 33 of 33NP_877398.1Q9NQ66-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PLCB1
ENST00000338037.11
TSL:1 MANE Select
c.3643C>Tp.Pro1215Ser
missense
Exon 32 of 32ENSP00000338185.6Q9NQ66-1
PLCB1
ENST00000378641.7
TSL:1
c.*239C>T
3_prime_UTR
Exon 33 of 33ENSP00000367908.3Q9NQ66-2
PLCB1
ENST00000487210.5
TSL:1
n.*19+79668C>T
intron
N/AENSP00000431704.1H0YCJ2

Frequencies

GnomAD3 genomes
AF:
0.000322
AC:
49
AN:
152154
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000327
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000942
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000603
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000303
AC:
76
AN:
250772
AF XY:
0.000339
show subpopulations
Gnomad AFR exome
AF:
0.0000617
Gnomad AMR exome
AF:
0.000434
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000139
Gnomad NFE exome
AF:
0.000494
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000295
AC:
429
AN:
1456022
Hom.:
0
Cov.:
29
AF XY:
0.000306
AC XY:
222
AN XY:
724692
show subpopulations
African (AFR)
AF:
0.0000300
AC:
1
AN:
33362
American (AMR)
AF:
0.000403
AC:
18
AN:
44714
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26082
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39662
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86132
European-Finnish (FIN)
AF:
0.000300
AC:
16
AN:
53414
Middle Eastern (MID)
AF:
0.000174
AC:
1
AN:
5744
European-Non Finnish (NFE)
AF:
0.000344
AC:
381
AN:
1106704
Other (OTH)
AF:
0.000166
AC:
10
AN:
60208
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.485
Heterozygous variant carriers
0
24
48
72
96
120
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:
0.000322
AC:
49
AN:
152274
Hom.:
0
Cov.:
32
AF XY:
0.000309
AC XY:
23
AN XY:
74450
show subpopulations
African (AFR)
AF:
0.0000481
AC:
2
AN:
41560
American (AMR)
AF:
0.000327
AC:
5
AN:
15296
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5170
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4816
European-Finnish (FIN)
AF:
0.0000942
AC:
1
AN:
10616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000603
AC:
41
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.485
Heterozygous variant carriers
0
4
8
13
17
21
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:
0.000500
Hom.:
0
Bravo
AF:
0.000389
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000349
AC:
3
ExAC
AF:
0.000280
AC:
34
EpiCase
AF:
0.000818
EpiControl
AF:
0.000593

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
Developmental and epileptic encephalopathy, 12 (2)
-
-
1
Inborn genetic diseases (1)
-
1
-
not provided (1)
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.091
BayesDel_addAF
Benign
-0.49
T
BayesDel_noAF
Benign
-0.61
CADD
Benign
18
DANN
Benign
0.95
DEOGEN2
Benign
0.19
T
Eigen
Benign
-0.37
Eigen_PC
Benign
-0.12
FATHMM_MKL
Uncertain
0.84
D
LIST_S2
Benign
0.79
T
M_CAP
Benign
0.0028
T
MetaRNN
Benign
0.019
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.0
N
PhyloP100
0.94
PrimateAI
Benign
0.44
T
PROVEAN
Benign
-0.22
N
REVEL
Benign
0.048
Sift
Uncertain
0.020
D
Sift4G
Benign
0.69
T
Polyphen
0.0010
B
Vest4
0.092
MVP
0.29
MPC
0.32
ClinPred
0.025
T
GERP RS
5.1
Varity_R
0.065
gMVP
0.18
Mutation Taster
=88/12
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: rs138077430; hg19: chr20-8862488; COSMIC: COSV62055362; API
For research and educational, non-commercial use only. Not for clinical or diagnostic use. GeneBe does not provide medical advice. Data use for AI modeling is prohibited: if used, the cost is $0.001 per byte of downloaded uncompressed data.