ORC3 Gene Summary [Human]

The origin recognition complex (ORC) is a highly conserved six subunits protein complex essential for the initiation of the DNA replication in eukaryotic cells. Studies in yeast demonstrated that ORC binds specifically to origins of replication and serves as a platform for the assembly of additional initiation factors such as Cdc6 and Mcm proteins. The protein encoded by this gene is a subunit of the ORC complex. Studies of a similar gene in Drosophila suggested a possible role of this protein in neuronal proliferation and olfactory memory. Alternatively spliced transcript variants encoding distinct isoforms have been reported for this gene. [provided by RefSeq, Jul 2008]

Details

Type
Protein Coding
Official Symbol
ORC3
Official Name
origin recognition complex subunit 3 [Source:HGNC Symbol;Acc:HGNC:8489]
Ensembl ID
ENSG00000135336
Bio databases IDs NCBI: 23595 Ensembl: ENSG00000135336
Aliases origin recognition complex subunit 3
Synonyms LAT, LATHEO, ORC3L, origin recognition complex subunit 3, origin recognition complex, subunit 3
Species
Human, Homo sapiens
OrthologiesMouseRat

Protein Domains

A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains in human ORC3 often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • MOD1-interacting region
  • Origin recognition complex winged helix C-terminal
  • Origin recognition complex subunit 3
  • Origin recognition complex subunit 3 insertion domain
  • DNA replication origin binding
  • coiled-coil domain
  • protein binding

Pathways

Biological processes and signaling networks where the ORC3 gene in human plays a role, providing insight into its function and relevance in health or disease.

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
regulated by
regulates
role in cell
  • proliferation
  • G1 phase

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Nucleus
  • soluble fraction
  • chromatin fraction
  • nuclear matrix fraction
  • heterochromatic focus
  • nuclear foci
  • nucleoplasm
  • nuclear bodies
  • chromatin

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the human ORC3 gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • DNA-dependent DNA replication initiation
  • DNA replication
  • neural precursor cell proliferation
  • regulation of DNA replication
  • glial cell proliferation

Cellular Component

Where in the cell the gene product is active
  • pre-replicative complex
  • origin recognition complex
  • nucleus
  • chromosome, telomeric region
  • nuclear body
  • DNA replication preinitiation complex
  • nuclear origin of replication recognition complex
  • chromatin
  • nucleoplasm

Molecular Function

What the gene product does at the molecular level
  • DNA replication origin binding
  • protein binding

Gene-Specific Assays for Results You Can Trust

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