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DNA replication licensing factor MCM7 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 ''MCM7''
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 protein encoded by this gene is one of the highly conserved mini-chromosome maintenance proteins (MCM) that are essential for the initiation of eukaryotic genome replication. The hexameric protein complex formed by the MCM proteins is a key component of the
pre-replication complex A pre-replication complex (pre-RC) is a protein complex that forms at the origin of replication during the initiation step of DNA replication. Formation of the pre-RC is required for DNA replication to occur. Complete and faithful replication of ...
(pre-RC) and may be involved in the formation of replication forks and in the recruitment of other DNA replication related proteins. The MCM complex consisting of this protein and MCM2, 4 and 6 proteins possesses DNA helicase activity, and may act as a DNA unwinding enzyme. Cyclin D1-dependent kinase, CDK4, is found to associate with this protein, and may regulate the binding of this protein with the tumor suppressor protein RB1/RB. Alternatively spliced transcript variants encoding distinct isoforms have been reported.


Interactions

MCM7 has been shown to
interact Advocates for Informed Choice, dba interACT or interACT Advocates for Intersex Youth, is a 501(c)(3) nonprofit organization using innovative strategies to advocate for the legal and human rights of children with intersex traits. The organizati ...
with: * CDC45-related protein *
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. ...
, *
Cell division cycle 7-related protein kinase Cell division cycle 7-related protein kinase is an enzyme that in humans is encoded by the ''CDC7'' gene. The Cdc7 kinase is involved in regulation of the cell cycle at the point of chromosomal DNA replication. The gene CDC7 appears to be conse ...
, *
DBF4 Protein DBF4 homolog A is a protein that is encoded by the ''DBF4'' gene in humans. Interactions DBF4 has been shown to interact with: * Cell division cycle 7-related protein kinase, * MCM3, * MCM7, * ORC2L, and * ORC6L Origin recogni ...
, *
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 ...
, *
MCM5 DNA replication licensing factor MCM5 is a protein that in humans is encoded by the ''MCM5'' gene. Function The protein encoded by this gene is structurally very similar to the CDC46 protein from S. cerevisiae, a protein involved in the initiat ...
, *
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 ...
, *
MNAT1 CDK-activating kinase assembly factor MAT1 is an enzyme that in humans is encoded by the ''MNAT1'' gene. Function Cyclin-dependent kinases (CDKs), which play an essential role in cell cycle control of eukaryotic cells, are phosphorylated and ...
, *
ORC1L 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 sub ...
, *
ORC2L 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 ...
, *
ORC3L 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 ...
, *
ORC5L 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 ...
, *
Replication protein A1 Replication protein A 70 kDa DNA-binding subunit is a protein that in humans is encoded by the ''RPA1'' gene. Interactions Replication protein A1 has been shown to interact with: * BRCA2, * BLM, * MCM2, * MCM4, * MCM6, * MCM7, * MUTYH, ...
, *
Retinoblastoma protein The retinoblastoma protein (protein name abbreviated pRb; gene name abbreviated ''Rb'', ''RB'' or ''RB1'') is a proto-oncogenic tumor suppressor protein that is dysfunctional in several major cancers. One function of pRb is to prevent excessive ...
, and *
UBE3A Ubiquitin-protein ligase E3A (UBE3A) also known as E6AP ubiquitin-protein ligase (E6AP) is an enzyme that in humans is encoded by the ''UBE3A'' gene. This enzyme is involved in targeting proteins for degradation within cells. Protein degradation ...
.


See also

*
Mini Chromosome Maintenance The minichromosome maintenance protein complex (MCM) is a DNA helicase essential for genomic DNA replication. Eukaryotic MCM consists of six gene products, Mcm2–7, which form a heterohexamer. As a critical protein for cell division, MCM is also t ...


References


Further reading

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