Biology:CCDC90B

From HandWiki

Coiled coil domain containing 90B, also known as CCDC90B, is a protein encoded by the CCDC90B gene. It is a mitochondrial calcium uniporter binding protein.[1]

Gene

CCDC90B is located on chromosome 11 in humans. It is neighbored by:[2]

  • PCF11, a mammalian pre-mRNA cleavage complex 2 protein
  • ANKRD42, ankyrin repeat protein involved with calcium ion bonding
  • BC070093
  • DLG2, a member of the membrane-associated guanylate kinase (MAGUK) family

Structure

This protein is characterized by the presence of a domain of unknown function, DUF1640. This domain is a characteristic of the entire protein with the exception of the first twenty-three amino acid residues - MNSRQAWRLFLSQGRGDRWVSRP - which are a mitochondrial targeting site and cleaved.

The protein has seven predicted alpha helices, a characteristic of coiled-coil proteins.

Properties

Post-translation modifications:[3]

Chloroplast transit peptides: None
Signal pepties: None
C-mannosylation sites: None
N-glycosylation sites: None
Mitochondrial targeting: Yes
Cleaved site: MNSRQAWRLFLSQGRGDRWVSRP

It is predicted to contain at least three specific phosphorylation sites: Protein Kinase C Phosphorylation sites, Casein Kinase II Phosphorylation sites, and cAMP/cGMP Dependent Phosphorylation sites.

References

  1. "Characterization of MCU-Binding Proteins MCUR1 and CCDC90B - Representatives of a Protein Family Conserved in Prokaryotes and Eukaryotic Organelles". Structure 27 (3): 464–475.e6. March 2019. doi:10.1016/j.str.2018.11.004. PMID 30612859. 
  2. "UCSC Genome Bioinformatics BLAT". University of California - Santa Cruz. March 2006. http://genome.ucsc.edu/cgi-bin/hgTracks?position=chr11:82650154-82675025&db=hg18&ss=../trash/hgSs/hgSs_genome_3acd_c806a0.pslx+../trash/hgSs/hgSs_genome_3acd_c806a0.fa&hgsid=132301808. 
  3. "ExPASy". SIB Switzerland. 2009-01-05. http://www.expasy.ch/.