Origin recognition complex subunit 4 is a
protein
Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residues. Proteins perform a vast array of functions within organisms, including catalysing metabolic reactions, DNA replication, respo ...
that in humans is encoded by the ORC4 (ORC4L)
gene
In biology, the word gene (from , ; "...Wilhelm Johannsen coined the word gene to describe the Mendelian units of heredity..." meaning ''generation'' or ''birth'' or ''gender'') can have several different meanings. The Mendelian gene is a ba ...
.
Function
The
origin recognition complex
In molecular biology, origin recognition complex (ORC) is a multi-subunit DNA binding complex (6 subunits) that binds in all eukaryotes and archaea in an ATP-dependent manner to origins of replication. The subunits of this complex are encoded ...
(ORC) is a highly conserved six subunit 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
Cell division control protein 6 homolog is a protein that in humans is encoded by the ''CDC6'' gene.
The protein encoded by this gene is highly similar to Saccharomyces cerevisiae Cdc6, a protein essential for the initiation of DNA replication. ...
and Mcm proteins. The protein encoded by this gene is a subunit of the ORC complex. It has been shown to form a core complex with ORC2L, -3L, and -5L. Three alternatively spliced transcript variants encoding the same protein have been reported.
Interactions
ORC4 has been shown to
interact
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with:
*
MCM2
DNA replication licensing factor MCM2 is a protein that in humans is encoded by the ''MCM2'' gene.
Function
The protein encoded by this gene is one of the highly conserved mini-chromosome maintenance proteins (MCM) that are involved in the ini ...
,
[
* ]MCM3
DNA replication licensing factor MCM3 is a protein that in humans is encoded by the ''MCM3'' gene.
Function
The protein encoded by this gene is one of the highly conserved mini-chromosome maintenance proteins (MCM) that are involved in the init ...
,[
* ]MCM4
DNA replication licensing factor MCM4 is a protein that in humans is encoded by the ''MCM4'' gene.
Function
The protein encoded by this gene is one of the highly conserved mini-chromosome maintenance proteins (MCM) that are essential for the i ...
,[
* ]MCM6
DNA replication licensing factor MCM6 is a protein that in humans is encoded by the ''MCM6'' gene. MCM6 is one of the highly conserved mini-chromosome maintenance proteins ( MCM) that are essential for the initiation of eukaryotic genome replicati ...
,[
* ]ORC1
Origin recognition complex subunit 1 is a protein that in humans is encoded by the ORC1 gene. It is closely related to CDC6, and both are the same protein in archaea.
Function
The origin recognition complex (ORC) is a highly conserved six subu ...
,
* ORC2
Origin recognition complex subunit 2 is a protein that is encoded by the ORC2 (ORC2L) gene in humans.
Function
The origin recognition complex (ORC) is a highly conserved six subunits protein complex essential for the initiation of the DNA repl ...
,
* ORC3
Origin recognition complex subunit 3 is a protein that in humans is encoded by the ORC3 (ORC3L) gene.
Function
The origin recognition complex (ORC) is a highly conserved six subunits protein complex essential for the initiation of the DNA repl ...
,
* ORC5
Origin recognition complex subunit 5 is a protein that in humans is encoded by the ORC5 (ORC5L) gene.
Function
The origin recognition complex (ORC) is a highly conserved six subunit protein complex essential for the initiation of the DNA replic ...
, and
* ORC6
Origin recognition complex subunit 6 is a protein that in humans is encoded by the ORC6 (ORC6L) gene.
Background
The origin recognition complex (ORC) is a highly conserved six subunit protein complex essential for the initiation of the DNA repli ...
.[
]
References
Further reading
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