Genetic Variant CRAT:p.Met614Thr (chr9-129095437-A-G) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_000755.5(CRAT):c.1841T>C(p.Met614Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,460,666 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

CRAT
NM_000755.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.10

Publications

0 publications found

Variant links:

Genes affected

CRAT (HGNC:2342): (carnitine O-acetyltransferase) This gene encodes carnitine O-acetyltransferase, a member of the carnitine acyltransferase family and a key metabolic pathway enzyme which plays an important role in energy homeostasis and fat metabolism. This enzyme catalyzes the reversible transfer of acyl groups from an acyl-CoA thioester to carnitine and regulates the ratio of acyl-CoA/CoA. It is found in both the mitochondria and the peroxisome. Alternative splicing results in transcript variants encoding different isoforms that may localize to different subcellular compartments. [provided by RefSeq, Oct 2016]

CRAT Gene-Disease associations (from GenCC):

neurodegeneration with brain iron accumulation 8
Inheritance: Unknown, AR Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics

CRAT links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.97

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000755.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CRAT	NM_000755.5	MANE Select	c.1841T>C	p.Met614Thr	missense	Exon 14 of 14	NP_000746.3
CRAT	NM_001346546.2		c.1844T>C	p.Met615Thr	missense	Exon 15 of 15	NP_001333475.2
CRAT	NM_001257363.3		c.1778T>C	p.Met593Thr	missense	Exon 15 of 15	NP_001244292.2	P43155-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CRAT	ENST00000318080.7	TSL:1 MANE Select	c.1841T>C	p.Met614Thr	missense	Exon 14 of 14	ENSP00000315013.2	P43155-1
CRAT	ENST00000458362.5	TSL:1	n.*1817T>C		non_coding_transcript_exon	Exon 15 of 15	ENSP00000400367.1	F2Z2C5
CRAT	ENST00000458362.5	TSL:1	n.*1817T>C		3_prime_UTR	Exon 15 of 15	ENSP00000400367.1	F2Z2C5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000400

AC:

AN:

249850

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1460666

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726660

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33476

American (AMR)

AF:

0.00

AC:

AN:

44718

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86248

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52320

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5720

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111988

Other (OTH)

AF:

0.00

AC:

AN:

60366

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

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

GnomAD4 genome

Cov.:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.81

BayesDel_addAF

Pathogenic

0.30

BayesDel_noAF

Pathogenic

0.29

CADD

Pathogenic

(source)

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.79

Eigen

Uncertain

0.68

Eigen_PC

Uncertain

0.58

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Uncertain

0.88

M_CAP

Uncertain

0.16

MetaRNN

Pathogenic

0.97

MetaSVM

Uncertain

0.73

MutationAssessor

Uncertain

2.6

PhyloP100

9.1

PrimateAI

Uncertain

0.68

PROVEAN

Pathogenic

-4.6

REVEL

Pathogenic

0.87

Sift

Uncertain

0.0040

Sift4G

Uncertain

0.0040

Polyphen

0.99

Vest4

0.82

MutPred

0.81

Loss of stability (P = 0.0194)

MVP

0.99

MPC

0.46

ClinPred

0.94

GERP RS

3.5

Varity_R

0.85

gMVP

0.87

Mutation Taster

=11/89

disease causing

(source)

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

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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over