chr22-50744855-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001097.3(ACR):​c.914C>T​(p.Pro305Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000562 in 1,602,420 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000014 ( 0 hom., cov: 20)
Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

ACR
NM_001097.3 missense

Scores

5
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.62
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 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.29723608).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ACRNM_001097.3 linkuse as main transcriptc.914C>T p.Pro305Leu missense_variant 5/5 ENST00000216139.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ACRENST00000216139.10 linkuse as main transcriptc.914C>T p.Pro305Leu missense_variant 5/51 NM_001097.3 P1
ACRENST00000527761.1 linkuse as main transcriptn.373C>T non_coding_transcript_exon_variant 2/25

Frequencies

GnomAD3 genomes
AF:
0.0000135
AC:
2
AN:
147784
Hom.:
0
Cov.:
20
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000670
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000974
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000481
AC:
7
AN:
1454636
Hom.:
0
Cov.:
40
AF XY:
0.00000415
AC XY:
3
AN XY:
723062
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000382
Gnomad4 NFE exome
AF:
0.00000361
Gnomad4 OTH exome
AF:
0.0000167
GnomAD4 genome
AF:
0.0000135
AC:
2
AN:
147784
Hom.:
0
Cov.:
20
AF XY:
0.00
AC XY:
0
AN XY:
71860
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000670
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.0000974
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

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 GeneticsDec 11, 2023The c.914C>T (p.P305L) 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 914, causing the proline (P) at amino acid position 305 to be replaced by a leucine (L). 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
0.089
BayesDel_addAF
Benign
0.0013
T
BayesDel_noAF
Benign
-0.24
CADD
Benign
19
DANN
Uncertain
0.99
DEOGEN2
Benign
0.40
T
Eigen
Benign
-0.28
Eigen_PC
Benign
-0.47
FATHMM_MKL
Benign
0.077
N
M_CAP
Benign
0.061
D
MetaRNN
Benign
0.30
T
MetaSVM
Uncertain
-0.21
T
MutationAssessor
Uncertain
2.3
M
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.34
T
PROVEAN
Benign
-1.0
N
REVEL
Uncertain
0.33
Sift
Benign
0.050
D
Sift4G
Uncertain
0.012
D
Polyphen
0.96
D
Vest4
0.25
MutPred
0.30
Loss of glycosylation at P305 (P = 0.0017);
MVP
0.95
ClinPred
0.43
T
GERP RS
2.9
Varity_R
0.028
gMVP
0.29

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: rs1320079223; hg19: chr22-51183283; COSMIC: COSV53360840; COSMIC: COSV53360840; API