rs61749895

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_StrongBP6_Moderate

The NM_000282.4(PCCA):​c.1651G>A​(p.Val551Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000639 in 1,565,968 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V551F) has been classified as Benign.

Frequency

Genomes: 𝑓 0.000040 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000028 ( 0 hom. )

Consequence

PCCA
NM_000282.4 missense

Scores

18

Clinical Significance

Likely benign criteria provided, single submitter U:1B:1

Conservation

PhyloP100: -0.163

Publications

16 publications found
Variant links:
Genes affected
PCCA (HGNC:8653): (propionyl-CoA carboxylase subunit alpha) The protein encoded by this gene is the alpha subunit of the heterodimeric mitochondrial enzyme Propionyl-CoA carboxylase. PCCA encodes the biotin-binding region of this enzyme. Mutations in either PCCA or PCCB (encoding the beta subunit) lead to an enzyme deficiency resulting in propionic acidemia. Multiple transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, May 2010]
PCCA Gene-Disease associations (from GenCC):
  • propionic acidemia
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Myriad Women’s Health, ClinGen, Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.022754103).
BP6
Variant 13-100368479-G-A is Benign according to our data. Variant chr13-100368479-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 1056964.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000282.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PCCA
NM_000282.4
MANE Select
c.1651G>Ap.Val551Ile
missense
Exon 19 of 24NP_000273.2
PCCA
NM_001352605.2
c.1651G>Ap.Val551Ile
missense
Exon 19 of 23NP_001339534.1
PCCA
NM_001127692.3
c.1573G>Ap.Val525Ile
missense
Exon 18 of 23NP_001121164.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PCCA
ENST00000376285.6
TSL:1 MANE Select
c.1651G>Ap.Val551Ile
missense
Exon 19 of 24ENSP00000365462.1
PCCA
ENST00000376286.8
TSL:2
c.1573G>Ap.Val525Ile
missense
Exon 18 of 23ENSP00000365463.4
PCCA
ENST00000376279.7
TSL:2
c.1651G>Ap.Val551Ile
missense
Exon 19 of 23ENSP00000365456.3

Frequencies

GnomAD3 genomes
AF:
0.0000396
AC:
6
AN:
151644
Hom.:
0
Cov.:
31
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:
0.00117
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:
0.0000239
AC:
6
AN:
250938
AF XY:
0.0000221
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000273
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.00000283
AC:
4
AN:
1414206
Hom.:
0
Cov.:
27
AF XY:
0.00000142
AC XY:
1
AN XY:
706464
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
32402
American (AMR)
AF:
0.00
AC:
0
AN:
44586
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25836
East Asian (EAS)
AF:
0.0000509
AC:
2
AN:
39308
South Asian (SAS)
AF:
0.00
AC:
0
AN:
84850
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53368
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5660
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1069530
Other (OTH)
AF:
0.0000341
AC:
2
AN:
58666
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.0206134), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.375
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:
0.0000395
AC:
6
AN:
151762
Hom.:
0
Cov.:
31
AF XY:
0.0000405
AC XY:
3
AN XY:
74154
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41380
American (AMR)
AF:
0.00
AC:
0
AN:
15186
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00117
AC:
6
AN:
5136
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4814
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10484
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67984
Other (OTH)
AF:
0.00
AC:
0
AN:
2102
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.467
Heterozygous variant carriers
0
1
2
3
4
5
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:
0.00
Hom.:
14
Bravo
AF:
0.0000227
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Likely benign
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Propionic acidemia Uncertain:1Benign:1
Feb 21, 2020
Natera, Inc.
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

Jul 08, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.068
BayesDel_addAF
Benign
-0.38
T
BayesDel_noAF
Benign
-0.52
CADD
Benign
0.38
DANN
Benign
0.55
DEOGEN2
Benign
0.33
T
Eigen
Benign
-1.5
Eigen_PC
Benign
-1.4
FATHMM_MKL
Benign
0.12
N
LIST_S2
Benign
0.62
T
M_CAP
Benign
0.016
T
MetaRNN
Benign
0.023
T
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
-0.63
N
PhyloP100
-0.16
PrimateAI
Benign
0.25
T
PROVEAN
Benign
-0.29
N
REVEL
Benign
0.25
Sift
Benign
0.57
T
Sift4G
Benign
0.50
T
Polyphen
0.0
B
Vest4
0.066
MutPred
0.58
Gain of helix (P = 0.0199)
MVP
0.34
MPC
0.11
ClinPred
0.0069
T
GERP RS
-1.8
PromoterAI
-0.011
Neutral
Varity_R
0.018
gMVP
0.23
Mutation Taster
=100/0
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: rs61749895; hg19: chr13-101020733; API