NM_003602.5:c.469-2A>T

Variant names:

• chr7-73331655-A-T
• NM_003602.5:c.469-2A>T

Variant summary

Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PVS1_Strong PM2 PP5_Moderate

The NM_003602.5(FKBP6):​c.469-2A>T variant causes a splice acceptor, intron change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Likely pathogenic (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: FKBP6 NM_003602.5 splice_acceptor, intron
• Scores: Splicing: ADA: 1.000
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:2
• Conservation: PhyloP100: 8.15
• Publications: 1 publications found

Genes affected

FKBP6 (HGNC:3722): (FKBP prolyl isomerase family member 6 (inactive)) The protein encoded by this gene is a cis-trans peptidyl-prolyl isomerase that may function in immunoregulation and basic cellular processes involving protein folding and trafficking. This gene is located in a chromosomal region that is deleted in Williams-Beuren syndrome. Defects in this gene may cause male infertility. There are multiple pseudogenes for this gene located nearby on chromosome 7. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2013]

FKBP6 Gene-Disease associations (from GenCC):

• spermatogenic failure 77

  Inheritance: AR Classification: MODERATE Submitted by: Ambry Genetics

ACMG classification

Our verdict: Likely_pathogenic. The variant received 8 ACMG points.

• PVS1: Splicing +-2 bp (donor or acceptor) variant, product NOT destroyed by NMD, known LOF gene, truncates exone, which is 0.12195122 fraction of the gene. Cryptic splice site detected, with MaxEntScore 3.5, offset of 6, new splice context is: tctctggtcctctggagcAGcaa. Cryptic site results in inframe change. If cryptic site found is not functional and variant results in exon loss, it results in inframe change.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 7-73331655-A-T is Pathogenic according to our data. Variant chr7-73331655-A-T is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 1684035.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003602.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FKBP6	NM_003602.5	MANE Select	c.469-2A>T		splice_acceptor intron	N/A	NP_003593.3
	FKBP6	NM_001135211.3		c.454-2A>T		splice_acceptor intron	N/A	NP_001128683.1	O75344-2
	FKBP6	NM_001281304.2		c.379-2A>T		splice_acceptor intron	N/A	NP_001268233.1	O75344-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FKBP6	ENST00000252037.5	TSL:1 MANE Select	c.469-2A>T		splice_acceptor intron	N/A	ENSP00000252037.4	O75344-1
	FKBP6	ENST00000429879.5	TSL:1	n.469-2A>T		splice_acceptor intron	N/A	ENSP00000403908.1	F8WD36
	FKBP6	ENST00000431982.6	TSL:2	c.454-2A>T		splice_acceptor intron	N/A	ENSP00000416277.2	O75344-2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Likely pathogenic

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
1	-	-	Male infertility (1)
1	-	-	Spermatogenic failure 77 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Uncertain	0.13	D
BayesDel_noAF	Uncertain	-0.050
CADD	Pathogenic	34
DANN	Uncertain	0.99
Eigen	Pathogenic	0.97
Eigen_PC	Pathogenic	0.77
FATHMM_MKL	Pathogenic	0.99	D
PhyloP100		8.1
GERP RS		5.2
Mutation Taster		=3/97	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Pathogenic	1.0
dbscSNV1_RF	Pathogenic	0.91
SpliceAI score (max)		0.99		Details are displayed if max score is > 0.2
DS_AG_spliceai		0.62		Position offset: 8
DS_AL_spliceai		0.99		Position offset: 2

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

Other links and lift over

hg19: chr7-72745658;