FEATURES

FAMILY

DESCRIPTION

Also known as ORC2_HUMAN, ORC2, ORC2L. Component of the origin recognition complex (ORC) that binds origins of replication. DNA-binding is ATP-dependent. The specific DNA sequences that define origins of replication have not been identified yet. ORC is required to assemble the pre-replication complex necessary to initiate DNA replication. Binds histone H3 and H4 trimethylation marks H3K9me3, H3K20me3 and H4K27me3. Stabilizes LRWD1, by protecting it from ubiquitin-mediated proteasomal degradation. Also stabilizes ORC3. Component of ORC, a complex composed of at least 6 subunits: ORC1, ORC2, ORC3, ORC4, ORC5 and ORC6. ORC is regulated in a cell-cycle dependent manner. It is sequentially assembled at the exit from anaphase of mitosis and disassembled as cells enter S phase (PubMed:12909626, PubMed:17716973). Interacts with DBF4 (By similarity). Interacts with MCM10 (PubMed:11095689). Interacts with LRWD1 throughout the cell cycle; this interaction, wich occurs only with non-ubiquitinated form of LRWD1, prevents LRWD1 ubiquitination and hence stabilizes the protein (PubMed:22645314). Interacts with POLQ (PubMed:24989122).

EXTERNAL LINKS

ORC2

Origin recognition complex subunit 2

Structural Ligandability

Domains Chains

0 chains assessed

1 chain not associated with a domain

ORC2

Structural Ligandability

Domains Chains

Distribution