chr11-47244859-G-T
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Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2
The NM_001610.4(ACP2):c.648C>A(p.His216Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000809 in 1,606,470 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000076 ( 0 hom. )
Consequence
ACP2
NM_001610.4 missense
NM_001610.4 missense
Scores
2
9
8
Clinical Significance
Conservation
PhyloP100: -0.934
Genes affected
ACP2 (HGNC:123): (acid phosphatase 2, lysosomal) The protein encoded by this gene belongs to the histidine acid phosphatase family, which hydrolyze orthophosphoric monoesters to alcohol and phosphate. This protein is localized to the lysosomal membrane, and is chemically and genetically distinct from the red cell acid phosphatase. Mice lacking this gene showed multiple defects, including bone structure alterations, lysosomal storage defects, and an increased tendency towards seizures. An enzymatically-inactive allele of this gene in mice showed severe growth retardation, hair-follicle abnormalities, and an ataxia-like phenotype. Alternatively spliced transcript variants have been found for this gene. A C-terminally extended isoform is also predicted to be produced by the use of an alternative in-frame translation termination codon via a stop codon readthrough mechanism. [provided by RefSeq, Oct 2017]
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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 | UniProt |
---|---|---|---|---|---|---|---|
ACP2 | NM_001610.4 | c.648C>A | p.His216Gln | missense_variant | 7/11 | ENST00000672073.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
ACP2 | ENST00000672073.1 | c.648C>A | p.His216Gln | missense_variant | 7/11 | NM_001610.4 | P1 |
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152242Hom.: 0 Cov.: 33
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GnomAD3 exomes AF: 0.00000409 AC: 1AN: 244708Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 132524
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GnomAD4 exome AF: 0.00000756 AC: 11AN: 1454228Hom.: 0 Cov.: 31 AF XY: 0.00000831 AC XY: 6AN XY: 722218
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GnomAD4 genome AF: 0.0000131 AC: 2AN: 152242Hom.: 0 Cov.: 33 AF XY: 0.0000134 AC XY: 1AN XY: 74378
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
not specified Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Jul 19, 2023 | The c.648C>A (p.H216Q) alteration is located in exon 7 (coding exon 7) of the ACP2 gene. This alteration results from a C to A substitution at nucleotide position 648, causing the histidine (H) at amino acid position 216 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
BayesDel_addAF
Uncertain
D
BayesDel_noAF
Benign
CADD
Benign
DANN
Uncertain
DEOGEN2
Benign
T;.;T;T;T
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Benign
N
LIST_S2
Uncertain
D;T;D;D;.
M_CAP
Benign
D
MetaRNN
Uncertain
D;D;D;D;D
MetaSVM
Benign
T
MutationAssessor
Uncertain
M;.;.;.;.
MutationTaster
Benign
D;D;D;D;D
PrimateAI
Uncertain
T
PROVEAN
Pathogenic
D;D;D;D;D
REVEL
Uncertain
Sift
Uncertain
D;T;D;D;D
Sift4G
Uncertain
T;T;D;T;.
Polyphen
D;D;D;D;.
Vest4
MutPred
Loss of helix (P = 0.0558);.;.;.;.;
MVP
MPC
ClinPred
D
GERP RS
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gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at