22-50744171-G-A
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Variant summary
Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong
The NM_001097.3(ACR):c.676G>A(p.Ala226Thr) variant causes a missense change. The variant allele was found at a frequency of 0.00000558 in 1,613,658 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.000020 ( 0 hom., cov: 29)
Exomes 𝑓: 0.0000041 ( 0 hom. )
Consequence
ACR
NM_001097.3 missense
NM_001097.3 missense
Scores
5
12
1
Clinical Significance
Conservation
PhyloP100: 6.73
Genes affected
ACR (HGNC:126): (acrosin) Acrosin is the major proteinase present in the acrosome of mature spermatozoa. It is a typical serine proteinase with trypsin-like specificity. It is stored in the acrosome in its precursor form, proacrosin. The active enzyme functions in the lysis of the zona pellucida, thus facilitating penetration of the sperm through the innermost glycoprotein layers of the ovum. The mRNA for proacrosin is synthesized only in the postmeiotic stages of spermatogenesis. In humans proacrosin first appears in the haploid spermatids. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Likely_pathogenic. Variant got 6 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.994
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
ACR | NM_001097.3 | c.676G>A | p.Ala226Thr | missense_variant | 4/5 | ENST00000216139.10 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
ACR | ENST00000216139.10 | c.676G>A | p.Ala226Thr | missense_variant | 4/5 | 1 | NM_001097.3 | P1 | |
ACR | ENST00000527761.1 | n.28G>A | non_coding_transcript_exon_variant | 1/2 | 5 |
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 152028Hom.: 0 Cov.: 29
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GnomAD3 exomes AF: 0.0000119 AC: 3AN: 251082Hom.: 0 AF XY: 0.0000221 AC XY: 3AN XY: 135690
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GnomAD4 exome AF: 0.00000411 AC: 6AN: 1461630Hom.: 0 Cov.: 32 AF XY: 0.00000825 AC XY: 6AN XY: 727138
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GnomAD4 genome AF: 0.0000197 AC: 3AN: 152028Hom.: 0 Cov.: 29 AF XY: 0.0000135 AC XY: 1AN XY: 74254
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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 | Dec 15, 2023 | The c.676G>A (p.A226T) alteration is located in exon 4 (coding exon 4) of the ACR gene. This alteration results from a G to A substitution at nucleotide position 676, causing the alanine (A) at amino acid position 226 to be replaced by a threonine (T). 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
Uncertain
CADD
Uncertain
DANN
Uncertain
DEOGEN2
Pathogenic
D
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Uncertain
D
M_CAP
Pathogenic
D
MetaRNN
Pathogenic
D
MetaSVM
Uncertain
D
MutationAssessor
Uncertain
M
MutationTaster
Benign
N
PrimateAI
Uncertain
T
PROVEAN
Uncertain
D
REVEL
Uncertain
Sift
Pathogenic
D
Sift4G
Uncertain
D
Polyphen
D
Vest4
MutPred
Gain of glycosylation at A226 (P = 0.0868);
MVP
ClinPred
D
GERP RS
Varity_R
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