80 kDa MCM3-associated protein 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 ''MCM3AP''
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 minichromosome maintenance protein 3 (
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 ...
) is one of the
MCM protein
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 ...
s essential for the initiation of DNA replication. The protein encoded by this gene is an MCM3 binding protein. It was reported to have phosphorylation-dependent DNA-primase activity, which was up-regulated in antigen immunization induced germinal center. This protein was demonstrated to be an
acetyltransferase
Acetyltransferase (or transacetylase) is a type of transferase enzyme that transfers an acetyl group.
Examples include:
* Histone acetyltransferases including CBP histone acetyltransferase
* Choline acetyltransferase
* Chloramphenicol acetyltransf ...
that acetylates MCM3 and plays a role in DNA replication. The mutagenesis of a
nuclear localization signal A nuclear localization signal ''or'' sequence (NLS) is an amino acid sequence that 'tags' a protein for import into the cell nucleus by nuclear transport. Typically, this signal consists of one or more short sequences of positively charged lysines o ...
of MCM3 affects the binding of this protein with MCM3, suggesting that this protein may also facilitate MCM3 nuclear localization.
Interactions
MCM3AP 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:
*
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 ...
and
*
TRIB3
Tribbles homolog 3 is a protein that in humans is encoded by the ''TRIB3'' gene.
Function
The protein encoded by this gene is a putative protein kinase that is induced by the transcription factor NF-kappaB. It is a pseudoenzyme that is though ...
.
References
Further reading
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External links
PDBe-KBprovides an overview of all the structure information available in the PDB for Human Germinal-center associated nuclear protein (MCM3AP)
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