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GeneBe

22-50744954-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001097.3(ACR):c.1013G>A(p.Arg338Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000309 in 1,423,346 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 12)
Exomes 𝑓: 0.000032 ( 0 hom. )

Consequence

ACR
NM_001097.3 missense

Scores

2
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.106
Variant links:
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 Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.10129064).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ACRNM_001097.3 linkuse as main transcriptc.1013G>A p.Arg338Gln missense_variant 5/5 ENST00000216139.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ACRENST00000216139.10 linkuse as main transcriptc.1013G>A p.Arg338Gln missense_variant 5/51 NM_001097.3 P1
ACRENST00000527761.1 linkuse as main transcript downstream_gene_variant 5

Frequencies

GnomAD3 genomes
AF:
0.0000203
AC:
2
AN:
98762
Hom.:
0
Cov.:
12
show subpopulations
Gnomad AFR
AF:
0.0000419
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000407
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000687
AC:
9
AN:
130966
Hom.:
0
AF XY:
0.0000437
AC XY:
3
AN XY:
68620
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000407
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000224
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000928
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000317
AC:
42
AN:
1324524
Hom.:
0
Cov.:
31
AF XY:
0.0000309
AC XY:
20
AN XY:
647326
show subpopulations
Gnomad4 AFR exome
AF:
0.0000668
Gnomad4 AMR exome
AF:
0.0000271
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000216
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000175
Gnomad4 OTH exome
AF:
0.0000914
GnomAD4 genome
AF:
0.0000202
AC:
2
AN:
98822
Hom.:
0
Cov.:
12
AF XY:
0.0000219
AC XY:
1
AN XY:
45720
show subpopulations
Gnomad4 AFR
AF:
0.0000417
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000409
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.0000718
AC:
8

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 submitterclinical testingAmbry GeneticsMar 27, 2023The c.1013G>A (p.R338Q) alteration is located in exon 5 (coding exon 5) of the ACR gene. This alteration results from a G to A substitution at nucleotide position 1013, causing the arginine (R) at amino acid position 338 to be replaced by a glutamine (Q). 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
0.087
BayesDel_addAF
Benign
-0.29
T
BayesDel_noAF
Benign
-0.37
Cadd
Benign
0.56
Dann
Benign
0.92
DEOGEN2
Benign
0.12
T
Eigen
Benign
-1.2
Eigen_PC
Benign
-1.4
FATHMM_MKL
Benign
0.0082
N
M_CAP
Benign
0.054
D
MetaRNN
Benign
0.10
T
MetaSVM
Benign
-0.60
T
MutationAssessor
Benign
0.0
N
MutationTaster
Benign
1.0
N
PrimateAI
Uncertain
0.57
T
PROVEAN
Benign
-0.030
N
REVEL
Uncertain
0.31
Sift
Benign
0.61
T
Sift4G
Benign
0.54
T
Polyphen
0.96
D
Vest4
0.087
MutPred
0.29
Loss of methylation at R338 (P = 0.0141);
MVP
0.65
ClinPred
0.051
T
GERP RS
-4.2
Varity_R
0.025
gMVP
0.11

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: rs773438105; hg19: chr22-51183382; API