7-30014752-T-G

Position:

chr7-30014752-T-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_017946.4(FKBP14):c.619A>C(p.Lys207Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000187 in 1,602,052 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

FKBP14
NM_017946.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 0.398

Variant links:

Genes affected

FKBP14 (HGNC:18625): (FKBP prolyl isomerase 14) The protein encoded by this gene is a member of the FK506-binding protein family of peptidyl-prolyl cis-trans isomerases. The encoded protein is found in the lumen of the endoplasmic reticulum, where it is thought to accelerate protein folding. Defects in this gene are a cause of a type of Ehlers-Danlos syndrome (EDS). Both a protein-coding variant and noncoding variants are transcribed from this gene. [provided by RefSeq, Mar 2012]

FKBP14 links:

FKBP14-AS1 (HGNC:40990): (FKBP14 antisense RNA 1)

FKBP14-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.06443021).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
FKBP14	NM_017946.4 linkuse as main transcript	c.619A>C	p.Lys207Gln	missense_variant	4/4	ENST00000222803.10
FKBP14	XM_047420550.1 linkuse as main transcript	c.477+4244A>C		intron_variant
FKBP14	NR_046478.2 linkuse as main transcript	n.905A>C		non_coding_transcript_exon_variant	5/5
FKBP14	NR_046479.2 linkuse as main transcript	n.661A>C		non_coding_transcript_exon_variant	3/3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
FKBP14	ENST00000222803.10 linkuse as main transcript	c.619A>C	p.Lys207Gln	missense_variant	4/4	1	NM_017946.4	P1
FKBP14-AS1	ENST00000422239.6 linkuse as main transcript	n.679+6375T>G		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152234

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000138

AC:

AN:

1449818

Hom.:

Cov.:

AF XY:

0.00000139

AC XY:

AN XY:

721240

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

0.00000181

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152234

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74370

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000582

Hom.:

Bravo

AF:

0.0000151

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Ehlers-Danlos syndrome, kyphoscoliotic type, 2

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jul 17, 2022

This sequence change replaces lysine, which is basic and polar, with glutamine, which is neutral and polar, at codon 207 of the FKBP14 protein (p.Lys207Gln). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with FKBP14-related conditions. ClinVar contains an entry for this variant (Variation ID: 947926). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The glutamine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Cardiovascular phenotype

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 25, 2023

The p.K207Q variant (also known as c.619A>C), located in coding exon 4 of the FKBP14 gene, results from an A to C substitution at nucleotide position 619. The lysine at codon 207 is replaced by glutamine, an amino acid with similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.35

BayesDel_noAF

Benign

-0.73

CADD

Benign

8.4

DANN

Benign

0.76

DEOGEN2

Benign

0.15

Eigen

Benign

-0.59

Eigen_PC

Benign

-0.46

FATHMM_MKL

Uncertain

0.77

LIST_S2

Benign

0.82

M_CAP

Benign

0.0044

MetaRNN

Benign

0.064

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.0

MutationTaster

Benign

0.95

PrimateAI

Benign

0.44

PROVEAN

Benign

-0.81

REVEL

Benign

0.061

Sift

Benign

0.55

Sift4G

Benign

0.45

Polyphen

0.0

Vest4

0.070

MutPred

0.34

Loss of ubiquitination at K207 (P = 0.0103);

MVP

0.35

MPC

0.099

ClinPred

0.043

GERP RS

-0.75

Varity_R

0.14

gMVP

0.73

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