Variant 12-2800395-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_002014.4(FKBP4):c.850G>A(p.Gly284Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000686 in 1,457,496 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

FKBP4
NM_002014.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.67

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 Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
FKBP4	NM_002014.4 linkuse as main transcript	c.850G>A	p.Gly284Ser	missense_variant	8/10	ENST00000001008.6	NP_002005.1
ITFG2-AS1	NR_146317.1 linkuse as main transcript	n.364-3449C>T		intron_variant, non_coding_transcript_variant
FKBP4	XM_047428539.1 linkuse as main transcript	c.715G>A	p.Gly239Ser	missense_variant	8/10		XP_047284495.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris
FKBP4	ENST00000001008.6 linkuse as main transcript	c.850G>A	p.Gly284Ser	missense_variant	8/10	1	NM_002014.4	ENSP00000001008	P1
	ENST00000547042.1 linkuse as main transcript	n.151-3123C>T		intron_variant, non_coding_transcript_variant		3
ITFG2-AS1	ENST00000547834.1 linkuse as main transcript	n.342-3449C>T		intron_variant, non_coding_transcript_variant		5
FKBP4	ENST00000543037.1 linkuse as main transcript	n.657G>A		non_coding_transcript_exon_variant	4/4	2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.86e-7

AC:

AN:

1457496

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

724904

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:

0.0000117

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

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

Jun 28, 2022

The c.850G>A (p.G284S) alteration is located in exon 8 (coding exon 8) of the FKBP4 gene. This alteration results from a G to A substitution at nucleotide position 850, causing the glycine (G) at amino acid position 284 to be replaced by a serine (S). 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

0.24

BayesDel_addAF

Pathogenic

0.21

BayesDel_noAF

Uncertain

0.070

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.53

Eigen

Pathogenic

0.74

Eigen_PC

Pathogenic

0.70

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.96

M_CAP

Benign

0.077

MetaRNN

Uncertain

0.69

MetaSVM

Uncertain

0.42

MutationAssessor

Uncertain

2.7

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.68

PROVEAN

Uncertain

-3.4

REVEL

Pathogenic

0.69

Sift

Benign

0.052

Sift4G

Benign

0.11

Polyphen

0.97

Vest4

0.65

MutPred

0.37

Gain of disorder (P = 0.0576);

MVP

0.80

MPC

1.1

ClinPred

0.97

GERP RS

5.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.8

Varity_R

0.72

gMVP

0.64

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over