Genetic Variant ACR:p.Thr24Lys (chr22-50738306-C-A) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_001097.3(ACR):c.71C>A(p.Thr24Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,650 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T24M) has been classified as Benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

ACR
NM_001097.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.98

Publications

0 publications found

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]

ACR links:

ENSG00000225929 (HGNC:):

ENSG00000225929 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.793

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001097.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ACR	NM_001097.3	MANE Select	c.71C>A	p.Thr24Lys	missense	Exon 1 of 5	NP_001088.2	P10323
	LOC105373100	NR_134637.1		n.-137G>T		upstream_gene	N/A

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
ACR	ENST00000216139.10	TSL:1 MANE Select	c.71C>A	p.Thr24Lys	missense	Exon 1 of 5	ENSP00000216139.5	P10323
ACR	ENST00000533930.1	TSL:1	n.111C>A		non_coding_transcript_exon	Exon 1 of 3
ACR	ENST00000529621.1	TSL:5	c.71C>A	p.Thr24Lys	missense	Exon 1 of 4	ENSP00000435120.1	E9PLV5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461650

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727146

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44710

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26128

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86246

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53412

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5700

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111898

Other (OTH)

AF:

0.00

AC:

AN:

60376

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.17

BayesDel_addAF

Pathogenic

0.26

BayesDel_noAF

Pathogenic

0.14

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.28

Eigen

Uncertain

0.32

Eigen_PC

Uncertain

0.25

FATHMM_MKL

Uncertain

0.88

M_CAP

Uncertain

0.22

MetaRNN

Pathogenic

0.79

MetaSVM

Uncertain

0.50

MutationAssessor

Benign

1.1

PhyloP100

2.0

PrimateAI

Uncertain

0.53

PROVEAN

Benign

-1.2

REVEL

Uncertain

0.55

Sift

Uncertain

0.0050

Sift4G

Benign

0.068

Polyphen

1.0

Vest4

0.55

MutPred

0.56

Gain of methylation at T24 (P = 0.0088)

MVP

0.96

ClinPred

0.81

GERP RS

4.0

PromoterAI

0.11

Neutral

(source)

Varity_R

0.14

gMVP

0.60

Mutation Taster

=82/18

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over