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GeneBe

22-50744743-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001097.3(ACR):c.802C>T(p.Arg268Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000149 in 1,605,592 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 0.000014 ( 0 hom., cov: 29)
Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

ACR
NM_001097.3 missense

Scores

7
8
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.709
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.895

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ACRNM_001097.3 linkuse as main transcriptc.802C>T p.Arg268Cys missense_variant 5/5 ENST00000216139.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ACRENST00000216139.10 linkuse as main transcriptc.802C>T p.Arg268Cys missense_variant 5/51 NM_001097.3 P1
ACRENST00000527761.1 linkuse as main transcriptn.261C>T non_coding_transcript_exon_variant 2/25

Frequencies

GnomAD3 genomes
AF:
0.0000137
AC:
2
AN:
145752
Hom.:
0
Cov.:
29
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000304
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000122
AC:
3
AN:
246800
Hom.:
0
AF XY:
0.0000149
AC XY:
2
AN XY:
133938
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000270
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000151
AC:
22
AN:
1459840
Hom.:
0
Cov.:
33
AF XY:
0.0000179
AC XY:
13
AN XY:
726164
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000180
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000137
AC:
2
AN:
145752
Hom.:
0
Cov.:
29
AF XY:
0.0000141
AC XY:
1
AN XY:
71142
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000304
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000113
ExAC
AF:
0.0000247
AC:
3
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

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 GeneticsMay 04, 2022The c.802C>T (p.R268C) alteration is located in exon 5 (coding exon 5) of the ACR gene. This alteration results from a C to T substitution at nucleotide position 802, causing the arginine (R) at amino acid position 268 to be replaced by a cysteine (C). 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
Pathogenic
0.93
BayesDel_addAF
Pathogenic
0.17
D
BayesDel_noAF
Uncertain
0.070
Cadd
Pathogenic
30
Dann
Uncertain
1.0
DEOGEN2
Uncertain
0.79
D
Eigen
Uncertain
0.34
Eigen_PC
Uncertain
0.26
FATHMM_MKL
Benign
0.71
D
M_CAP
Pathogenic
0.34
D
MetaRNN
Pathogenic
0.89
D
MetaSVM
Uncertain
0.45
D
MutationAssessor
Benign
2.0
M
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.57
T
PROVEAN
Pathogenic
-6.4
D
REVEL
Pathogenic
0.68
Sift
Uncertain
0.0010
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.61
MVP
0.92
ClinPred
0.98
D
GERP RS
3.4
Varity_R
0.51
gMVP
0.69

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: rs753029481; hg19: chr22-51183171; API