Genetic Variant NM_206836.3:c.1102T>G (chr6-4115957-A-C) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_206836.3(ECI2):c.1102T>G(p.Cys368Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,824 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

ECI2
NM_206836.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.930

Variant links:

Genes affected

ECI2 (HGNC:14601): (enoyl-CoA delta isomerase 2) This gene encodes a member of the hydratase/isomerase superfamily. The protein encoded is a key mitochondrial enzyme involved in beta-oxidation of unsaturated fatty acids. It catalyzes the transformation of 3-cis and 3-trans-enoyl-CoA esters arising during the stepwise degradation of cis-, mono-, and polyunsaturated fatty acids to the 2-trans-enoyl-CoA intermediates. Alternatively spliced transcript variants have been described. [provided by RefSeq, Aug 2011]

ECI2 links:

TEX56P (HGNC:):

TEX56P links:

TEX56P (HGNC:21620): (testis expressed 56, pseudogene)

TEX56P links:

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ACMG classification

Classification was made for transcript

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

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.37217605).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ECI2	NM_206836.3 link	c.1102T>G	p.Cys368Gly	missense_variant	Exon 10 of 10	ENST00000380118.8	NP_996667.2	O75521-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ECI2	ENST00000380118.8 link	c.1102T>G	p.Cys368Gly	missense_variant	Exon 10 of 10	1	NM_206836.3	ENSP00000369461.3		O75521-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000159

AC:

AN:

251146

AF XY:

0.0000147

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.0000868

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:

0.00000274

AC:

AN:

1461824

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727208

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33480

American (AMR)

AF:

0.0000671

AC:

AN:

44718

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86248

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111962

Other (OTH)

AF:

0.00

AC:

AN:

60394

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

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

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

Aug 12, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.1102T>G (p.C368G) alteration is located in exon 10 (coding exon 10) of the ECI2 gene. This alteration results from a T to G substitution at nucleotide position 1102, causing the cysteine (C) at amino acid position 368 to be replaced by a glycine (G). 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

Benign

0.19

BayesDel_addAF

Benign

-0.23

BayesDel_noAF

Benign

-0.36

CADD

Benign

(source)

DANN

Benign

0.96

DEOGEN2

Benign

0.050

T;.;.;.

Eigen

Benign

0.0064

Eigen_PC

Benign

-0.15

FATHMM_MKL

Benign

0.44

LIST_S2

Benign

0.75

T;.;.;T

M_CAP

Benign

0.017

MetaRNN

Benign

0.37

T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.6

L;.;.;.

PhyloP100

0.93

PrimateAI

Benign

0.33

PROVEAN

Pathogenic

-10

D;D;D;D

REVEL

Benign

0.18

Sift

Uncertain

0.0030

D;D;D;D

Sift4G

Uncertain

0.011

D;D;D;D

Polyphen

0.96

D;.;.;.

Vest4

0.36

MVP

0.51

MPC

0.42

ClinPred

0.98

GERP RS

-0.024

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.77

gMVP

0.67

Mutation Taster

=79/21

polymorphism

(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

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NM_206836.3:c.1102T>G

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over