rs61731996

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM1BP4

The NM_000098.3(CPT2):​c.1477G>A​(p.Ala493Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000546 in 1,612,358 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

CPT2
NM_000098.3 missense

Scores

5
11
2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:8B:1

Conservation

PhyloP100: 10.0

Publications

5 publications found
Variant links:
Genes affected
CPT2 (HGNC:2330): (carnitine palmitoyltransferase 2) The protein encoded by this gene is a nuclear protein which is transported to the mitochondrial inner membrane. Together with carnitine palmitoyltransferase I, the encoded protein oxidizes long-chain fatty acids in the mitochondria. Defects in this gene are associated with mitochondrial long-chain fatty-acid (LCFA) oxidation disorders. [provided by RefSeq, Jul 2008]
CPT2 Gene-Disease associations (from GenCC):
  • carnitine palmitoyltransferase II deficiency
    Inheritance: AR Classification: DEFINITIVE Submitted by: Myriad Women’s Health, ClinGen
  • carnitine palmitoyl transferase II deficiency, neonatal form
    Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)
  • carnitine palmitoyl transferase II deficiency, myopathic form
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • carnitine palmitoyl transferase II deficiency, severe infantile form
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • encephalopathy, acute, infection-induced, susceptibility to, 4
    Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM1
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 8 uncertain in NM_000098.3
BP4
Computational evidence support a benign effect (MetaRNN=0.41638902).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000098.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CPT2
NM_000098.3
MANE Select
c.1477G>Ap.Ala493Thr
missense
Exon 4 of 5NP_000089.1P23786
CPT2
NM_001330589.2
c.1477G>Ap.Ala493Thr
missense
Exon 4 of 5NP_001317518.1A0A1B0GTB8

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CPT2
ENST00000371486.4
TSL:1 MANE Select
c.1477G>Ap.Ala493Thr
missense
Exon 4 of 5ENSP00000360541.3P23786
CPT2
ENST00000873097.1
c.1477G>Ap.Ala493Thr
missense
Exon 4 of 6ENSP00000543156.1
CPT2
ENST00000637252.1
TSL:5
c.1477G>Ap.Ala493Thr
missense
Exon 4 of 6ENSP00000490492.1A0A1B0GVF3

Frequencies

GnomAD3 genomes
AF:
0.000335
AC:
51
AN:
152160
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00111
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000761
AC:
19
AN:
249756
AF XY:
0.0000741
show subpopulations
Gnomad AFR exome
AF:
0.000865
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.0000253
AC:
37
AN:
1460080
Hom.:
0
Cov.:
34
AF XY:
0.0000207
AC XY:
15
AN XY:
726102
show subpopulations
African (AFR)
AF:
0.000778
AC:
26
AN:
33440
American (AMR)
AF:
0.000112
AC:
5
AN:
44664
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25986
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39652
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86144
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53352
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5762
European-Non Finnish (NFE)
AF:
0.00000180
AC:
2
AN:
1110756
Other (OTH)
AF:
0.0000497
AC:
3
AN:
60324
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
3
7
10
14
17
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:
0.000335
AC:
51
AN:
152278
Hom.:
0
Cov.:
32
AF XY:
0.000309
AC XY:
23
AN XY:
74462
show subpopulations
African (AFR)
AF:
0.00111
AC:
46
AN:
41562
American (AMR)
AF:
0.000261
AC:
4
AN:
15298
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4820
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10608
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68016
Other (OTH)
AF:
0.00
AC:
0
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
3
5
8
10
13
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:
0.000676
Hom.:
0
Bravo
AF:
0.000291
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000741
AC:
9

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
4
-
not provided (4)
-
2
1
Carnitine palmitoyltransferase II deficiency (3)
-
1
-
Carnitine palmitoyl transferase II deficiency, myopathic form;C1833511:Carnitine palmitoyl transferase II deficiency, severe infantile form;C1833518:Carnitine palmitoyl transferase II deficiency, neonatal form;C3280160:Encephalopathy, acute, infection-induced, susceptibility to, 4 (1)
-
1
-
Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.80
BayesDel_addAF
Benign
-0.014
T
BayesDel_noAF
Pathogenic
0.16
CADD
Pathogenic
29
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.60
D
Eigen
Uncertain
0.59
Eigen_PC
Uncertain
0.57
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.91
D
M_CAP
Uncertain
0.10
D
MetaRNN
Benign
0.42
T
MetaSVM
Uncertain
0.33
D
MutationAssessor
Uncertain
2.0
M
PhyloP100
10
PrimateAI
Pathogenic
0.80
T
PROVEAN
Uncertain
-3.3
D
REVEL
Uncertain
0.54
Sift
Uncertain
0.0020
D
Sift4G
Uncertain
0.029
D
Polyphen
1.0
D
Vest4
0.73
MVP
0.99
MPC
0.49
ClinPred
0.36
T
GERP RS
5.8
Varity_R
0.73
gMVP
0.45
Mutation Taster
=33/67
disease causing

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: rs61731996; hg19: chr1-53676823; 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.