ACR

protein-coding

acrosin

Gene summary

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]

MANE transcript

NM_001097.3

Inheritance

AR

ClinVar variants

P:1U:71B:8

Top phenotype

Spermatogenic failure 87

gnomAD constraint

pLI —, LoF o/e 0.42

Max pathogenic AF

—

Genomic locus

chr22:50,738,196-50,745,339

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~7.1 kb
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GenCC Phenotypes & Disease Associations

Curated gene-disease validity assertions and inheritance patterns

No GenCC data available for this gene.

Clinical Genomic Database (CGD)

Spermatogenic failure 87AR

Manifestation: Genitourinary

Intervention: General

Rationale: Genetic knowledge may be beneficial related to issues such as selection of optimal supportive care, informed medical decision-making, prognostic considerations, and avoidance of unnecessary testing

Refs: 37004249Source: CGD (NHGRI)

ClinVar Associated Diseases & Phenotypes

Reported disease conditions connected to ACR variants in ClinVar

3 Conditions Cataloged
not specifiedTotal: 74
not providedTotal: 3
Spermatogenic failure 87Total: 1

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_001097.3. Only rare variants are included.

We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.

Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.

EffectPLPVUSLBBSum
synonymous
1
clinvar
1
missense
70
clinvar
5
clinvar
1
clinvar
76
nonsense
1
clinvar
1
start loss
1
clinvar
1
frameshift
1
clinvar
1
splice donor/acceptor (+/-2bp)
0
Total10716280
Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 6 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_001097.3RefSeqNP_001088.25MANE Select
ENST00000216139.10EnsemblENSP00000216139.55MANE Select
ENST00000529621.1EnsemblENSP00000435120.14Standard
ENST00000529621.2EnsemblENSP00000435120.14Standard

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Pathways ConsensusPathDB

  • Fertilization
  • Reproduction
  • Acrosome Reaction

Biological Process

  • acrosome matrix dispersal
  • activation of adenylate cyclase activity
  • single fertilization
  • binding of sperm to zona pellucida
  • acrosome reaction

Molecular Function

  • protease binding
  • DNA binding
  • amidase activity
  • serine-type endopeptidase activity
  • copper ion binding

Cellular Component

  • extracellular region
  • nucleus
  • Golgi-associated vesicle
  • protein-containing complex
  • acrosomal matrix

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000216139
Coding exons
5
Length
7139
Individuals with no LoFs
125734
Homozygous LoFs
0
Heterozygous LoFs
13
Defined
125747
p
0.0000517
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense0.4472152340.9180.00001452661
Missense (PolyPhen)6193.3060.65376971
Synonymous-2.3412999.31.300.00000695907
Loss of Function1.86511.90.4196.08e-7130

Population LoF Frequency

PopulationCAFp-valueStatus
African0.0000620.000062rare
Latino/Admixed American0.0000870.000087rare
Ashkenazi Jewish00.0absent
East Asian0.0000540.000054rare
Finnish00.0absent
European (Non-Finnish)0.0000620.000062rare
South Asian00.0absent
Other0.000160.00016rare

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: Acrosin is the major protease of mammalian spermatozoa. It is a serine protease of trypsin-like cleavage specificity, it is synthesized in a zymogen form, proacrosin and stored in the acrosome.;

Recessive Scores

pRec
0.260

Intolerance Scores

LoFtool
0.267
RVIS EVS
-0.6
RVIS percentile EVS
17.91

Essentials

Essential (CRISPR)
N
Essential (CRISPR2)
S
Essential (gene trap)
N
Indispensability pred.
N
Indispensability score
0.365

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium
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