Variant 14-64987038-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_002028.4(FNTB):c.85G>A(p.Glu29Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000131 in 152,170 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Consequence

FNTB
NM_002028.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.72

Variant links:

Genes affected

FNTB (HGNC:3785): (farnesyltransferase, CAAX box, beta) Enables zinc ion binding activity. Contributes to protein farnesyltransferase activity. Involved in protein farnesylation. Part of microtubule associated complex and protein farnesyltransferase complex. [provided by Alliance of Genome Resources, Apr 2022]

FNTB links:

CHURC1-FNTB (HGNC:):

CHURC1-FNTB links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.17512637).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
FNTB	NM_002028.4 linkuse as main transcript	c.85G>A	p.Glu29Lys	missense_variant	1/12	ENST00000246166.3
CHURC1-FNTB	NM_001202559.1 linkuse as main transcript	c.328-17211G>A		intron_variant
LOC107984655	XR_001750792.2 linkuse as main transcript	n.76C>T		non_coding_transcript_exon_variant	1/2
CHURC1-FNTB	NM_001202558.2 linkuse as main transcript	c.7-17211G>A		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FNTB	ENST00000246166.3 linkuse as main transcript	c.85G>A	p.Glu29Lys	missense_variant	1/12	1	NM_002028.4	P1	P49356-1
FNTB	ENST00000555372.5 linkuse as main transcript	n.144G>A		non_coding_transcript_exon_variant	1/5	3

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152170

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.00

GnomAD4 exome

Cov.:

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152170

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74340

show subpopulations

Gnomad4 AFR

AF:

0.0000483

Gnomad4 AMR

AF:

0.00

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:

0.00

Bravo

AF:

0.00000756

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

Feb 16, 2023

The c.85G>A (p.E29K) alteration is located in exon 1 (coding exon 1) of the FNTB gene. This alteration results from a G to A substitution at nucleotide position 85, causing the glutamic acid (E) at amino acid position 29 to be replaced by a lysine (K). 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

0.17

BayesDel_addAF

Benign

-0.097

BayesDel_noAF

Benign

-0.38

Cadd

Benign

Dann

Uncertain

1.0

DEOGEN2

Benign

0.13

Eigen

Benign

-0.41

Eigen_PC

Benign

-0.18

FATHMM_MKL

Benign

0.71

LIST_S2

Uncertain

0.87

M_CAP

Benign

0.0048

MetaRNN

Benign

0.18

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.69

MutationTaster

Benign

1.0

D;D;N;N

PROVEAN

Benign

-0.17

REVEL

Benign

0.20

Sift

Benign

0.14

Sift4G

Benign

0.40

Polyphen

0.0090

Vest4

0.52

MutPred

0.30

Gain of ubiquitination at E29 (P = 0.0069);

MVP

0.29

MPC

0.51

ClinPred

0.55

GERP RS

4.5

Varity_R

0.27

gMVP

0.53

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