dbSNP rs113511313: CPT1C:p.Met798Val (chr19-49713585-A-G) – ACMG Classification: Benign (-20 pts)

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001378482.1(CPT1C):c.2458A>G(p.Met820Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00346 in 1,612,116 control chromosomes in the GnomAD database, including 19 homozygotes. 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 (★★).

Frequency

Genomes: 𝑓 0.0023 ( 1 hom., cov: 31)

Exomes 𝑓: 0.0036 ( 18 hom. )

Consequence

CPT1C
NM_001378482.1 missense

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.0750

Publications

5 publications found

Variant links:

Genes affected

CPT1C (HGNC:18540): (carnitine palmitoyltransferase 1C) This gene encodes a member of the carnitine/choline acetyltransferase family. The encoded protein regulates the beta-oxidation and transport of long-chain fatty acids into mitochondria, and may play a role in the regulation of feeding behavior and whole-body energy homeostasis. Alternatively spliced transcript variants encoding multiple protein isoforms have been observed for this gene. [provided by RefSeq, Dec 2010]

CPT1C Gene-Disease associations (from GenCC):

hereditary spastic paraplegia 73
Inheritance: AD Classification: STRONG, SUPPORTIVE, LIMITED Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics
hereditary spastic paraplegia
Inheritance: AD Classification: LIMITED Submitted by: ClinGen

CPT1C links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0049996674).

BP6

Variant 19-49713585-A-G is Benign according to our data. Variant chr19-49713585-A-G is described in ClinVar as Likely_benign. ClinVar VariationId is 542770.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.00232 (353/152298) while in subpopulation NFE AF = 0.00365 (248/68024). AF 95% confidence interval is 0.00327. There are 1 homozygotes in GnomAd4. There are 173 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.

BS2

High AC in GnomAd4 at 353 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001378482.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
CPT1C	NM_001199753.2	MANE Select	c.2392A>G	p.Met798Val	missense	Exon 20 of 20	NP_001186682.1
CPT1C	NM_001378482.1		c.2458A>G	p.Met820Val	missense	Exon 19 of 19	NP_001365411.1
CPT1C	NM_001199752.3		c.2392A>G	p.Met798Val	missense	Exon 20 of 20	NP_001186681.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
CPT1C	ENST00000598293.6	TSL:2 MANE Select	c.2392A>G	p.Met798Val	missense	Exon 20 of 20	ENSP00000473028.1
CPT1C	ENST00000323446.9	TSL:1	c.2392A>G	p.Met798Val	missense	Exon 19 of 19	ENSP00000319343.4
CPT1C	ENST00000405931.6	TSL:1	c.2359A>G	p.Met787Val	missense	Exon 20 of 20	ENSP00000384465.2

Frequencies

GnomAD3 genomes

AF:

0.00232

AC:

353

AN:

152180

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000820

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00105

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00207

Gnomad FIN

AF:

0.00367

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00365

Gnomad OTH

AF:

0.00287

GnomAD2 exomes

AF:

0.00273

AC:

678

AN:

248456

AF XY:

0.00277

show subpopulations

Gnomad AFR exome

AF:

0.00123

Gnomad AMR exome

AF:

0.000472

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00409

Gnomad NFE exome

AF:

0.00432

Gnomad OTH exome

AF:

0.00413

GnomAD4 exome

AF:

0.00358

AC:

5228

AN:

1459818

Hom.:

Cov.:

AF XY:

0.00348

AC XY:

2528

AN XY:

726286

show subpopulations

African (AFR)

AF:

0.000928

AC:

AN:

33414

American (AMR)

AF:

0.000610

AC:

AN:

44228

Ashkenazi Jewish (ASJ)

AF:

0.0000385

AC:

AN:

25952

East Asian (EAS)

AF:

0.00

AC:

AN:

39690

South Asian (SAS)

AF:

0.00166

AC:

143

AN:

86046

European-Finnish (FIN)

AF:

0.00424

AC:

226

AN:

53358

Middle Eastern (MID)

AF:

0.000174

AC:

AN:

5746

European-Non Finnish (NFE)

AF:

0.00413

AC:

4588

AN:

1111080

Other (OTH)

AF:

0.00350

AC:

211

AN:

60304

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.478

Heterozygous variant carriers

254

508

762

1016

1270

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

174

348

522

696

870

<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:

0.00232

AC:

353

AN:

152298

Hom.:

Cov.:

AF XY:

0.00232

AC XY:

173

AN XY:

74474

show subpopulations

African (AFR)

AF:

0.000818

AC:

AN:

41574

American (AMR)

AF:

0.00105

AC:

AN:

15282

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5176

South Asian (SAS)

AF:

0.00207

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00367

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00365

AC:

248

AN:

68024

Other (OTH)

AF:

0.00284

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.493

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<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:

0.00306

Hom.:

Bravo

AF:

0.00216

TwinsUK

AF:

0.00351

AC:

ALSPAC

AF:

0.00519

AC:

ESP6500AA

AF:

0.000908

AC:

ESP6500EA

AF:

0.00442

AC:

ExAC

AF:

0.00304

AC:

369

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.00382

EpiControl

AF:

0.00267

ClinVar

ClinVar submissions as Germline

Significance:Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Hereditary spastic paraplegia 73 (2)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.054

BayesDel_addAF

Benign

-0.55

BayesDel_noAF

Benign

-0.56

CADD

Benign

0.33

(source)

DANN

Benign

0.28

DEOGEN2

Benign

0.045

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.034

LIST_S2

Benign

0.36

M_CAP

Benign

0.019

MetaRNN

Benign

0.0050

MetaSVM

Benign

-0.81

MutationAssessor

Benign

-0.34

PhyloP100

-0.075

PrimateAI

Benign

0.23

PROVEAN

Benign

-0.30

REVEL

Benign

0.13

Sift

Benign

0.76

Sift4G

Benign

0.76

Polyphen

0.0

Vest4

0.14

MVP

0.45

MPC

0.39

ClinPred

0.00030

GERP RS

1.4

Varity_R

0.019

gMVP

0.27

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over