Variant chr13-99866396-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_206808.5(CLYBL):c.791T>C(p.Met264Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000548 in 1,459,418 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: 32)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

CLYBL
NM_206808.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.50

Variant links:

Genes affected

CLYBL (HGNC:18355): (citramalyl-CoA lyase) Enables (S)-citramalyl-CoA lyase activity; magnesium ion binding activity; and malate synthase activity. Involved in protein homotrimerization and regulation of cobalamin metabolic process. Predicted to be located in mitochondrion. Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

CLYBL links:

(HGNC:):

links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.829

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CLYBL	NM_206808.5 linkuse as main transcript	c.791T>C	p.Met264Thr	missense_variant	6/9	ENST00000339105.9	NP_996531.1
CLYBL-AS3	NR_120421.1 linkuse as main transcript	n.83+90687A>G		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CLYBL	ENST00000339105.9 linkuse as main transcript	c.791T>C	p.Met264Thr	missense_variant	6/9	1	NM_206808.5	ENSP00000342991	P1	Q8N0X4-1
	ENST00000670575.1 linkuse as main transcript	n.86-10952A>G		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000403

AC:

AN:

248264

Hom.:

AF XY:

0.00

AC XY:

AN XY:

134224

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000299

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:

0.00000548

AC:

AN:

1459418

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

726030

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000229

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:

0.00000540

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 02, 2024

The c.791T>C (p.M264T) alteration is located in exon 6 (coding exon 6) of the CLYBL gene. This alteration results from a T to C substitution at nucleotide position 791, causing the methionine (M) at amino acid position 264 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.75

BayesDel_addAF

Pathogenic

0.22

BayesDel_noAF

Pathogenic

0.17

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Benign

0.25

T;.;T;T

Eigen

Pathogenic

0.81

Eigen_PC

Pathogenic

0.75

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.95

.;D;D;D

M_CAP

Uncertain

0.11

MetaRNN

Pathogenic

0.83

D;D;D;D

MetaSVM

Uncertain

-0.22

MutationAssessor

Pathogenic

3.4

M;.;M;.

MutationTaster

Benign

1.0

D;D;D;D;D

PrimateAI

Uncertain

0.76

PROVEAN

Pathogenic

-4.8

.;D;D;D

REVEL

Pathogenic

0.78

Sift

Uncertain

0.0060

.;D;D;D

Sift4G

Uncertain

0.0070

D;D;D;D

Polyphen

1.0

D;.;D;.

Vest4

0.95

MutPred

0.67

Gain of catalytic residue at G265 (P = 0.0044);.;Gain of catalytic residue at G265 (P = 0.0044);.;

MVP

0.68

ClinPred

0.98

GERP RS

5.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.89

gMVP

0.93

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over