7-4790712-C-T

Variant summary

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

The NM_014855.3(AP5Z1):​c.1978C>T​(p.Arg660Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000036 in 1,611,094 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000034 ( 0 hom. )

Consequence

AP5Z1
NM_014855.3 missense

Scores

8
11

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 0.500
Variant links:
Genes affected
AP5Z1 (HGNC:22197): (adaptor related protein complex 5 subunit zeta 1) This gene was identified by genome-wide screen for genes involved in homologous recombination DNA double-strand break repair (HR-DSBR). The encoded protein was found in a complex with other proteins that have a role in HR-DSBR. Knockdown of this gene reduced homologous recombination, and mutations in this gene were found in patients with spastic paraplegia. It was concluded that this gene likely encodes a helicase (PMID:20613862). [provided by RefSeq, Jan 2011]

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 UniProt
AP5Z1NM_014855.3 linkuse as main transcriptc.1978C>T p.Arg660Trp missense_variant 16/17 ENST00000649063.2 NP_055670.1 O43299-1
AP5Z1NM_001364858.1 linkuse as main transcriptc.1510C>T p.Arg504Trp missense_variant 15/16 NP_001351787.1
AP5Z1XM_047421098.1 linkuse as main transcriptc.1642C>T p.Arg548Trp missense_variant 14/15 XP_047277054.1
AP5Z1NR_157345.1 linkuse as main transcriptn.2109C>T non_coding_transcript_exon_variant 16/17

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
AP5Z1ENST00000649063.2 linkuse as main transcriptc.1978C>T p.Arg660Trp missense_variant 16/17 NM_014855.3 ENSP00000497815.1 O43299-1

Frequencies

GnomAD3 genomes
AF:
0.0000591
AC:
9
AN:
152162
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000966
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:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000327
AC:
8
AN:
244358
Hom.:
0
AF XY:
0.0000300
AC XY:
4
AN XY:
133232
show subpopulations
Gnomad AFR exome
AF:
0.000134
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000561
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000452
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000336
AC:
49
AN:
1458932
Hom.:
0
Cov.:
32
AF XY:
0.0000276
AC XY:
20
AN XY:
725696
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000101
Gnomad4 SAS exome
AF:
0.0000349
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000360
Gnomad4 OTH exome
AF:
0.0000332
GnomAD4 genome
AF:
0.0000591
AC:
9
AN:
152162
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74332
show subpopulations
Gnomad4 AFR
AF:
0.0000966
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:
0.0000735
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000453
ESP6500AA
AF:
0.000247
AC:
1
ESP6500EA
AF:
0.000360
AC:
3
ExAC
AF:
0.0000414
AC:
5

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Hereditary spastic paraplegia 48 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpAug 28, 2021- -
Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsApr 25, 2023The c.1978C>T (p.R660W) alteration is located in exon 16 (coding exon 16) of the AP5Z1 gene. This alteration results from a C to T substitution at nucleotide position 1978, causing the arginine (R) at amino acid position 660 to be replaced by a tryptophan (W). 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
0.15
BayesDel_addAF
Benign
-0.23
T
BayesDel_noAF
Benign
-0.33
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.24
T;T
Eigen
Benign
-0.22
Eigen_PC
Benign
-0.37
FATHMM_MKL
Benign
0.63
D
LIST_S2
Uncertain
0.96
.;D
M_CAP
Uncertain
0.12
D
MetaRNN
Uncertain
0.45
T;T
MetaSVM
Benign
-0.45
T
MutationAssessor
Uncertain
2.6
M;M
PrimateAI
Benign
0.35
T
PROVEAN
Uncertain
-4.3
D;.
REVEL
Benign
0.22
Sift
Uncertain
0.0040
D;.
Sift4G
Uncertain
0.0090
D;.
Polyphen
1.0
D;D
Vest4
0.47
MVP
0.25
ClinPred
0.45
T
GERP RS
-1.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.11
gMVP
0.36

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs377514314; hg19: chr7-4830343; COSMIC: COSV62244075; COSMIC: COSV62244075; API