rs138423670

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_015346.4(ZFYVE26):​c.6448C>T​(p.Pro2150Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000083 in 1,614,152 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. P2150P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00040 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000050 ( 0 hom. )

Consequence

ZFYVE26
NM_015346.4 missense

Scores

2
16

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1

Conservation

PhyloP100: 3.52

Publications

1 publications found
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]
ZFYVE26 Gene-Disease associations (from GenCC):
  • hereditary spastic paraplegia 15
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Myriad Women’s Health, G2P

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.027216166).
BP6
Variant 14-67761506-G-A is Benign according to our data. Variant chr14-67761506-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 458291.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000401 (61/152292) while in subpopulation AFR AF = 0.0014 (58/41552). AF 95% confidence interval is 0.00111. There are 0 homozygotes in GnomAd4. There are 28 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ZFYVE26NM_015346.4 linkc.6448C>T p.Pro2150Ser missense_variant Exon 35 of 42 ENST00000347230.9 NP_056161.2 Q68DK2-1
ZFYVE26XM_047431173.1 linkc.6448C>T p.Pro2150Ser missense_variant Exon 35 of 42 XP_047287129.1
ZFYVE26XM_047431174.1 linkc.4123C>T p.Pro1375Ser missense_variant Exon 24 of 31 XP_047287130.1
ZFYVE26XM_047431175.1 linkc.4030C>T p.Pro1344Ser missense_variant Exon 24 of 31 XP_047287131.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ZFYVE26ENST00000347230.9 linkc.6448C>T p.Pro2150Ser missense_variant Exon 35 of 42 1 NM_015346.4 ENSP00000251119.5 Q68DK2-1

Frequencies

GnomAD3 genomes
AF:
0.000401
AC:
61
AN:
152174
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00140
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000143
AC:
36
AN:
251230
AF XY:
0.000125
show subpopulations
Gnomad AFR exome
AF:
0.00197
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000499
AC:
73
AN:
1461860
Hom.:
0
Cov.:
31
AF XY:
0.0000399
AC XY:
29
AN XY:
727236
show subpopulations
African (AFR)
AF:
0.00179
AC:
60
AN:
33480
American (AMR)
AF:
0.000179
AC:
8
AN:
44714
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86246
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53418
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1112006
Other (OTH)
AF:
0.0000828
AC:
5
AN:
60392
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.488
Heterozygous variant carriers
0
5
11
16
22
27
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000401
AC:
61
AN:
152292
Hom.:
0
Cov.:
33
AF XY:
0.000376
AC XY:
28
AN XY:
74474
show subpopulations
African (AFR)
AF:
0.00140
AC:
58
AN:
41552
American (AMR)
AF:
0.000196
AC:
3
AN:
15298
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68020
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.487
Heterozygous variant carriers
0
3
6
9
12
15
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000700
Hom.:
0
Bravo
AF:
0.000480
ESP6500AA
AF:
0.00159
AC:
7
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000741
AC:
9

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:3Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:2
Sep 13, 2021
Athena Diagnostics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Apr 25, 2022
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Spastic paraplegia Uncertain:1
Jul 25, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces proline, which is neutral and non-polar, with serine, which is neutral and polar, at codon 2150 of the ZFYVE26 protein (p.Pro2150Ser). This variant is present in population databases (rs138423670, gnomAD 0.2%). This variant has not been reported in the literature in individuals affected with ZFYVE26-related conditions. ClinVar contains an entry for this variant (Variation ID: 458291). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. 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. -

Inborn genetic diseases Benign:1
Nov 21, 2022
Ambry Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.14
BayesDel_addAF
Benign
-0.49
T
BayesDel_noAF
Benign
-0.49
CADD
Benign
21
DANN
Uncertain
0.98
DEOGEN2
Benign
0.0054
.;T
Eigen
Benign
-0.0018
Eigen_PC
Benign
0.22
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.82
.;T
M_CAP
Benign
0.0048
T
MetaRNN
Benign
0.027
T;T
MetaSVM
Benign
-1.0
T
PhyloP100
3.5
PrimateAI
Benign
0.38
T
PROVEAN
Benign
-0.16
N;N
REVEL
Benign
0.12
Sift
Benign
0.22
T;T
Sift4G
Benign
0.38
T;T
Polyphen
0.43
.;B
Vest4
0.24
MVP
0.30
MPC
0.17
ClinPred
0.032
T
GERP RS
6.2
PromoterAI
-0.026
Neutral
gMVP
0.18
Mutation Taster
=91/9
polymorphism

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

Other links and lift over

dbSNP: rs138423670; hg19: chr14-68228223; COSMIC: COSV61324556; COSMIC: COSV61324556; API