chr14-67755987-GTTC-G

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PM4_SupportingPP5

The NM_015346.4(ZFYVE26):​c.6744_6746del​(p.Lys2248del) variant causes a inframe deletion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000161 in 1,614,240 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

ZFYVE26
NM_015346.4 inframe_deletion

Scores

Not classified

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:2

Conservation

PhyloP100: 3.22
Variant links:
Genes affected
ZFYVE26 (HGNC:20761): (zinc finger FYVE-type containing 26) This gene encodes a protein which contains a FYVE zinc finger binding domain. The presence of this domain is thought to target these proteins to membrane lipids through interaction with phospholipids in the membrane. Mutations in this gene are associated with autosomal recessive spastic paraplegia-15. [provided by RefSeq, Oct 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PM4
Nonframeshift variant in NON repetitive region in NM_015346.4. Strenght limited to Supporting due to length of the change: 1aa.
PP5
Variant 14-67755987-GTTC-G is Pathogenic according to our data. Variant chr14-67755987-GTTC-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 241056.We mark this variant Likely_pathogenic, oryginal submissions are: {Likely_pathogenic=1, Uncertain_significance=2}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ZFYVE26NM_015346.4 linkuse as main transcriptc.6744_6746del p.Lys2248del inframe_deletion 36/42 ENST00000347230.9
ZFYVE26XM_047431173.1 linkuse as main transcriptc.6744_6746del p.Lys2248del inframe_deletion 36/42
ZFYVE26XM_047431174.1 linkuse as main transcriptc.4419_4421del p.Lys1473del inframe_deletion 25/31
ZFYVE26XM_047431175.1 linkuse as main transcriptc.4326_4328del p.Lys1442del inframe_deletion 25/31

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ZFYVE26ENST00000347230.9 linkuse as main transcriptc.6744_6746del p.Lys2248del inframe_deletion 36/421 NM_015346.4 P1

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152230
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000121
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
GnomAD3 exomes
AF:
0.0000119
AC:
3
AN:
251448
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135888
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000137
AC:
20
AN:
1461892
Hom.:
0
AF XY:
0.0000165
AC XY:
12
AN XY:
727246
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000153
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152348
Hom.:
0
Cov.:
32
AF XY:
0.0000403
AC XY:
3
AN XY:
74508
show subpopulations
Gnomad4 AFR
AF:
0.000120
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:
0.0000712
Hom.:
0
Bravo
AF:
0.0000264

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:1Uncertain:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Pathogenic:1
Likely pathogenic, criteria provided, single submitterclinical testingGeneDxJan 04, 2024In-frame deletion of 1 amino acid in a non-repeat region; In silico analysis supports a deleterious effect on protein structure/function; Not observed at significant frequency in large population cohorts (gnomAD); This variant is associated with the following publications: (PMID: 36315648, 24833714, 37681008) -
Spastic paraplegia Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingInvitaeJan 14, 2022This variant, c.6744_6746del, results in the deletion of 1 amino acid(s) of the ZFYVE26 protein (p.Lys2248del), but otherwise preserves the integrity of the reading frame. This variant is present in population databases (rs764479245, gnomAD 0.007%). This variant has been observed in individual(s) with complicated spastic paraplegia (PMID: 24833714). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. ClinVar contains an entry for this variant (Variation ID: 241056). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. 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. -
Hereditary spastic paraplegia 15 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingCounsylJan 25, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.11
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.

Other links and lift over

dbSNP: rs764479245; hg19: chr14-68222704; API