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OAZ1 ornithine decarboxylase antizyme 1 [ Homo sapiens (human) ]

Gene ID: 4946, updated on 11-Jun-2025
Official Symbol
OAZ1provided by HGNC
Official Full Name
ornithine decarboxylase antizyme 1provided by HGNC
Primary source
HGNC:HGNC:8095
See related
Ensembl:ENSG00000104904 MIM:601579; AllianceGenome:HGNC:8095
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Homo sapiens
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
AZ1; AZI; OAZ
Summary
The protein encoded by this gene belongs to the ornithine decarboxylase antizyme family, which plays a role in cell growth and proliferation by regulating intracellular polyamine levels. Expression of antizymes requires +1 ribosomal frameshifting, which is enhanced by high levels of polyamines. Antizymes in turn bind to and inhibit ornithine decarboxylase (ODC), the key enzyme in polyamine biosynthesis; thus, completing the auto-regulatory circuit. This gene encodes antizyme 1, the first member of the antizyme family, that has broad tissue distribution, and negatively regulates intracellular polyamine levels by binding to and targeting ODC for degradation, as well as inhibiting polyamine uptake. Antizyme 1 mRNA contains two potential in-frame AUGs; and studies in rat suggest that alternative use of the two translation initiation sites results in N-terminally distinct protein isoforms with different subcellular localization. Alternatively spliced transcript variants have also been noted for this gene. [provided by RefSeq, Dec 2014]
Expression
Ubiquitous expression in bone marrow (RPKM 404.8), lymph node (RPKM 286.9) and 25 other tissues See more
Orthologs
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See OAZ1 in Genome Data Viewer
Location:
19p13.3
Exon count:
5
Annotation release Status Assembly Chr Location
RS_2024_08 current GRCh38.p14 (GCF_000001405.40) 19 NC_000019.10 (2269486..2273488)
RS_2024_08 current T2T-CHM13v2.0 (GCF_009914755.1) 19 NC_060943.1 (2243130..2247132)
RS_2024_09 previous assembly GRCh37.p13 (GCF_000001405.25) 19 NC_000019.9 (2269485..2273487)

Chromosome 19 - NC_000019.10Genomic Context describing neighboring genes Neighboring gene ATAC-STARR-seq lymphoblastoid active region 13668 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 13669 Neighboring gene junctional sarcoplasmic reticulum protein 1 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 13670 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 13671 Neighboring gene uncharacterized LOC105372240 Neighboring gene NANOG-H3K27ac-H3K4me1 hESC enhancer GRCh37_chr19:2269184-2269798 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 9778 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 9779 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 9780 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 13672 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 13673 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 9781 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 9782 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 13674 Neighboring gene H3K27ac-H3K4me1 hESC enhancer GRCh37_chr19:2275050-2275984 Neighboring gene PEAK family member 3 Neighboring gene ATAC-STARR-seq lymphoblastoid active region 13675 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 9783 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 9784 Neighboring gene leucine rich repeat and Ig domain containing 3 Neighboring gene uncharacterized LOC101928572 Neighboring gene ATAC-STARR-seq lymphoblastoid silent region 9785

  • Project title: Tissue-specific circular RNA induction during human fetal development
  • Description: 35 human fetal samples from 6 tissues (3 - 7 replicates per tissue) collected between 10 and 20 weeks gestational time were sequenced using Illumina TruSeq Stranded Total RNA
  • BioProject: PRJNA270632
  • Publication: PMID 26076956
  • Analysis date: Mon Apr 2 22:54:59 2018

GeneRIFs: Gene References Into Functions

What's a GeneRIF?
Products Interactant Other Gene Complex Source Pubs Description

Markers

Clone Names

  • MGC138338

Gene Ontology Provided by GOA

Function Evidence Code Pubs
enables ornithine decarboxylase inhibitor activity IBA
Inferred from Biological aspect of Ancestor
more info
 
enables ornithine decarboxylase inhibitor activity IDA
Inferred from Direct Assay
more info
 
enables ornithine decarboxylase inhibitor activity IEA
Inferred from Electronic Annotation
more info
 
enables ornithine decarboxylase inhibitor activity ISS
Inferred from Sequence or Structural Similarity
more info
 
enables ornithine decarboxylase inhibitor activity TAS
Traceable Author Statement
more info
PubMed 
enables protein binding IPI
Inferred from Physical Interaction
more info
PubMed 
Component Evidence Code Pubs
is_active_in cytoplasm IBA
Inferred from Biological aspect of Ancestor
more info
 
located_in cytosol TAS
Traceable Author Statement
more info
 
is_active_in nucleus IBA
Inferred from Biological aspect of Ancestor
more info
 
Preferred Names
ornithine decarboxylase antizyme 1
Names
ODC-Az
antizyme 1

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.

mRNA and Protein(s)

  1. NM_001301020.1NP_001287949.1  ornithine decarboxylase antizyme 1 isoform 2

    Status: REVIEWED

    Description
    Transcript Variant: This variant (2) uses an alternate, in-frame acceptor splice site at the second exon compared to variant 1. The resulting isoform (2) lacks 2 internal amino acids compared to isoform 1.
    Source sequence(s)
    BC100291, BM423450, HY050868
    Consensus CDS
    CCDS77214.1
    UniProtKB/TrEMBL
    J3QQY4
    Related
    ENSP00000463955.3, ENST00000582888.8
    Conserved Domains (1) summary
    pfam02100
    Location:136215
    ODC_AZ; Ornithine decarboxylase antizyme
  2. NM_004152.3NP_004143.1  ornithine decarboxylase antizyme 1 isoform 1

    See identical proteins and their annotated locations for NP_004143.1

    Status: REVIEWED

    Description
    Transcript Variant: This variant (1) encodes the longer isoform (1).
    Source sequence(s)
    BC100291, HY050868
    Consensus CDS
    CCDS58639.1
    UniProtKB/Swiss-Prot
    O43382, P54368, Q14989, Q92595, Q9UPL9
    Related
    ENSP00000473381.1, ENST00000602676.6
    Conserved Domains (1) summary
    pfam02100
    Location:138217
    ODC_AZ; Ornithine decarboxylase antizyme

RefSeqs of Annotated Genomes: GCF_000001405.40-RS_2024_08

The following sections contain reference sequences that belong to a specific genome build. Explain

Reference GRCh38.p14 Primary Assembly

Genomic

  1. NC_000019.10 Reference GRCh38.p14 Primary Assembly

    Range
    2269486..2273488
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)

Alternate T2T-CHM13v2.0

Genomic

  1. NC_060943.1 Alternate T2T-CHM13v2.0

    Range
    2243130..2247132
    Download
    GenBank, FASTA, Sequence Viewer (Graphics)