12-2799228-G-A

Position:

chr12-2799228-G-A

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_002014.4(FKBP4):c.655G>A(p.Val219Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000471 in 1,528,012 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000040 ( 0 hom. )

Consequence

FKBP4
NM_002014.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.525

Variant links:

Genes affected

FKBP4 (HGNC:3720): (FKBP prolyl isomerase 4) The protein encoded by this gene is a member of the immunophilin protein family, which play a role in immunoregulation and basic cellular processes involving protein folding and trafficking. This encoded protein is a cis-trans prolyl isomerase that binds to the immunosuppressants FK506 and rapamycin. It has high structural and functional similarity to FK506-binding protein 1A (FKBP1A), but unlike FKBP1A, this protein does not have immunosuppressant activity when complexed with FK506. It interacts with interferon regulatory factor-4 and plays an important role in immunoregulatory gene expression in B and T lymphocytes. This encoded protein is known to associate with phytanoyl-CoA alpha-hydroxylase. It can also associate with two heat shock proteins (hsp90 and hsp70) and thus may play a role in the intracellular trafficking of hetero-oligomeric forms of the steroid hormone receptors. This protein correlates strongly with adeno-associated virus type 2 vectors (AAV) resulting in a significant increase in AAV-mediated transgene expression in human cell lines. Thus this encoded protein is thought to have important implications for the optimal use of AAV vectors in human gene therapy. The human genome contains several non-transcribed pseudogenes similar to this gene. [provided by RefSeq, Sep 2008]

FKBP4 links:

(HGNC:):

links:

ITFG2-AS1 (HGNC:53128): (ITFG2 antisense RNA 1)

ITFG2-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.18927279).

BS2

High AC in GnomAd4 at 17 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
FKBP4	NM_002014.4 linkuse as main transcript	c.655G>A	p.Val219Met	missense_variant	5/10	ENST00000001008.6	NP_002005.1
ITFG2-AS1	NR_146317.1 linkuse as main transcript	n.364-2282C>T		intron_variant, non_coding_transcript_variant
FKBP4	XM_047428539.1 linkuse as main transcript	c.520G>A	p.Val174Met	missense_variant	5/10		XP_047284495.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris
FKBP4	ENST00000001008.6 linkuse as main transcript	c.655G>A	p.Val219Met	missense_variant	5/10	1	NM_002014.4	ENSP00000001008	P1
	ENST00000547042.1 linkuse as main transcript	n.151-1956C>T		intron_variant, non_coding_transcript_variant		3
ITFG2-AS1	ENST00000547834.1 linkuse as main transcript	n.342-2282C>T		intron_variant, non_coding_transcript_variant		5
FKBP4	ENST00000543037.1 linkuse as main transcript	n.462G>A		non_coding_transcript_exon_variant	1/4	2

Frequencies

GnomAD3 genomes

AF:

0.000112

AC:

AN:

152182

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00461

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

GnomAD3 exomes

AF:

0.000101

AC:

AN:

187556

Hom.:

AF XY:

0.0000897

AC XY:

AN XY:

100320

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00261

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000572

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000330

Gnomad OTH exome

AF:

0.000232

GnomAD4 exome

AF:

0.0000400

AC:

AN:

1375712

Hom.:

Cov.:

AF XY:

0.0000414

AC XY:

AN XY:

677042

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00174

Gnomad4 EAS exome

AF:

0.0000265

Gnomad4 SAS exome

AF:

0.0000280

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000560

Gnomad4 OTH exome

AF:

0.000141

GnomAD4 genome

AF:

0.000112

AC:

AN:

152300

Hom.:

Cov.:

AF XY:

0.000107

AC XY:

AN XY:

74470

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00461

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:

0.000169

Hom.:

Bravo

AF:

0.0000907

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000825

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

Sep 22, 2023

The c.655G>A (p.V219M) alteration is located in exon 5 (coding exon 5) of the FKBP4 gene. This alteration results from a G to A substitution at nucleotide position 655, causing the valine (V) at amino acid position 219 to be replaced by a methionine (M). 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

0.22

BayesDel_addAF

Benign

-0.067

BayesDel_noAF

Benign

-0.17

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.20

Eigen

Benign

-0.13

Eigen_PC

Benign

-0.22

FATHMM_MKL

Benign

0.46

LIST_S2

Uncertain

0.94

M_CAP

Benign

0.049

MetaRNN

Benign

0.19

MetaSVM

Uncertain

0.37

MutationAssessor

Uncertain

2.6

MutationTaster

Benign

0.60

PrimateAI

Benign

0.42

PROVEAN

Benign

-0.10

REVEL

Uncertain

0.46

Sift

Uncertain

0.0070

Sift4G

Uncertain

0.023

Polyphen

0.89

Vest4

0.63

MVP

0.82

MPC

0.78

ClinPred

0.24

GERP RS

0.96

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.10

gMVP

0.47

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