rs373563983

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 2P and 7B. PM2BP4_StrongBP6_ModerateBP7

The NM_001876.4(CPT1A):ā€‹c.669A>Gā€‹(p.Leu223Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000322 in 1,613,948 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 Likely benign (ā˜…).

Frequency

Genomes: š‘“ 0.00017 ( 0 hom., cov: 33)
Exomes š‘“: 0.000018 ( 0 hom. )

Consequence

CPT1A
NM_001876.4 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:2

Conservation

PhyloP100: -1.39
Variant links:
Genes affected
CPT1A (HGNC:2328): (carnitine palmitoyltransferase 1A) The mitochondrial oxidation of long-chain fatty acids is initiated by the sequential action of carnitine palmitoyltransferase I (which is located in the outer membrane and is detergent-labile) and carnitine palmitoyltransferase II (which is located in the inner membrane and is detergent-stable), together with a carnitine-acylcarnitine translocase. CPT I is the key enzyme in the carnitine-dependent transport across the mitochondrial inner membrane and its deficiency results in a decreased rate of fatty acid beta-oxidation. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.8).
BP6
Variant 11-68799242-T-C is Benign according to our data. Variant chr11-68799242-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 463968.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=-1.39 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CPT1ANM_001876.4 linkc.669A>G p.Leu223Leu synonymous_variant 6/19 ENST00000265641.10 NP_001867.2 P50416-1A0A024R5F4Q8WZ48B2RAQ8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CPT1AENST00000265641.10 linkc.669A>G p.Leu223Leu synonymous_variant 6/191 NM_001876.4 ENSP00000265641.4 P50416-1

Frequencies

GnomAD3 genomes
AF:
0.000171
AC:
26
AN:
152204
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000555
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
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:
0.000955
GnomAD3 exomes
AF:
0.0000477
AC:
12
AN:
251466
Hom.:
0
AF XY:
0.0000294
AC XY:
4
AN XY:
135916
show subpopulations
Gnomad AFR exome
AF:
0.000615
Gnomad AMR exome
AF:
0.0000578
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000178
AC:
26
AN:
1461744
Hom.:
0
Cov.:
35
AF XY:
0.00000963
AC XY:
7
AN XY:
727194
show subpopulations
Gnomad4 AFR exome
AF:
0.000687
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.000171
AC:
26
AN:
152204
Hom.:
0
Cov.:
33
AF XY:
0.000202
AC XY:
15
AN XY:
74358
show subpopulations
Gnomad4 AFR
AF:
0.000555
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000955
Alfa
AF:
0.0000967
Hom.:
0
Bravo
AF:
0.000181

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Carnitine palmitoyl transferase 1A deficiency Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 24, 2024- -
CPT1A-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesJul 09, 2024This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.80
CADD
Benign
0.097
DANN
Benign
0.52
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs373563983; hg19: chr11-68566710; API