rs565250413

chr10-97743138-A-G

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_001385875.1(ZFYVE27):c.242A>G(p.Asn81Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000787 in 1,614,196 control chromosomes in the GnomAD database, including 1 homozygotes. Variant has been reported in ClinVar as Uncertain significance (★★).

• Frequency:
  • Genomes: 𝑓 0.000026 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000084 (1 hom.)
• Consequence: ZFYVE27 NM_001385875.1 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 6.83

Genes affected

ZFYVE27 (HGNC:26559): (zinc finger FYVE-type containing 27) This gene encodes a protein with several transmembrane domains, a Rab11-binding domain and a lipid-binding FYVE finger domain. The encoded protein appears to promote neurite formation. A mutation in this gene has been reported to be associated with hereditary spastic paraplegia, however the pathogenicity of the mutation, which may simply represent a polymorphism, is unclear. [provided by RefSeq, Mar 2010]

ACMG classification

Verdict is Likely_benign. Variant got -4 ACMG points.

• BS2: High AC in GnomAdExome at 25 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ZFYVE27	NM_001385875.1	c.242A>G	p.Asn81Ser	missense_variant	3/13	ENST00000684270.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ZFYVE27	ENST00000684270.1	c.242A>G	p.Asn81Ser	missense_variant	3/13		NM_001385875.1	A1

Frequencies

GnomAD3 genomes AF: 0.0000263 AC: 4 AN: 152186 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000654

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000294

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.0000994 AC: 25 AN: 251494 Hom.: 0 AF XY: 0.000110 AC XY: 15 AN XY: 135922

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000867

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.000523

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000176

Gnomad OTH exome AF: 0.000651

GnomAD4 exome AF: 0.0000841 AC: 123 AN: 1461892 Hom.: 1 Cov.: 31 AF XY: 0.000102 AC XY: 74 AN XY: 727248

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.0000894

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.000684

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000522

Gnomad4 OTH exome AF: 0.0000331

GnomAD4 genome AF: 0.0000263 AC: 4 AN: 152304 Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1 AN XY: 74476

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.0000653

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000207

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000294

Gnomad4 OTH AF: 0.00

Bravo AF: 0.0000264

ExAC AF: 0.000115 AC: 14

EpiCase AF: 0.00

EpiControl AF: 0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Spastic paraplegia Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Sep 27, 2022

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. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. 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 disruptive. ClinVar contains an entry for this variant (Variation ID: 458217). This variant has not been reported in the literature in individuals affected with ZFYVE27-related conditions. This variant is present in population databases (rs565250413, gnomAD 0.05%), and has an allele count higher than expected for a pathogenic variant. This sequence change replaces asparagine, which is neutral and polar, with serine, which is neutral and polar, at codon 81 of the ZFYVE27 protein (p.Asn81Ser). -

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 29, 2022

The c.242A>G (p.N81S) alteration is located in exon 2 (coding exon 2) of the ZFYVE27 gene. This alteration results from a A to G substitution at nucleotide position 242, causing the asparagine (N) at amino acid position 81 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	0.23
BayesDel_addAF	Benign	-0.36	T
BayesDel_noAF	Benign	-0.41
Cadd	Uncertain	24
Dann	Uncertain	1.0
DEOGEN2	Benign	0.050	T;.;.
Eigen	Uncertain	0.64
Eigen_PC	Pathogenic	0.67
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.89	D;D;D
M_CAP	Benign	0.037	D
MetaRNN	Uncertain	0.49	T;T;T
MetaSVM	Benign	-0.76	T
MutationAssessor	Uncertain	2.0	M;M;M
MutationTaster	Benign	1.0	D;D;D;D;D;D;D;D
PrimateAI	Uncertain	0.58	T
PROVEAN	Benign	-1.1	N;.;N
REVEL	Uncertain	0.29
Sift	Benign	0.069	T;.;T
Sift4G	Pathogenic	0.0	D;D;D
Polyphen		1.0	D;D;D
Vest4		0.70
MutPred		0.61		Gain of catalytic residue at G79 (P = 0.226);Gain of catalytic residue at G79 (P = 0.226);Gain of catalytic residue at G79 (P = 0.226);
MVP		0.26
ClinPred		0.14	T
GERP RS		5.9
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.15
gMVP		0.54

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.090		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

Other links and lift over

dbSNP: rs565250413; hg19: chr10-99502895; COSMIC: COSV100519372; COSMIC: COSV100519372;