Uncharacterized protein C2orf73 is a protein that in humans is encoded by the C2orf73 gene . The protein is predicted to be localized to the nucleus .
Gene The full gene spans a total of 53,712 base pairs and contains nine exons . The gene's location in the Human genome is on chromosome 2 at position 2p16.2 and is flanked by the genes ACYP2 and SPTBN1 .[ 1]
mRNA The primary mRNA produced by the C2or73 gene is 1921 nucleotides long. There are six other mRNA isoforms produced by alternative splicing and variation in exon length.[ 2]
Isoform
Exons
mRNA Length (bases)
Primary
2, 3, 5, 6, 7
1921
X1
2, 3, 5, 6, 7 (truncated), 8, 9
1726
X2
2, 3 (truncated), 5, 6, 7 (truncated)
971
X3
2 (truncated), 5, 6, 7 (truncated)
868
X4
4, 5, 6, 7 (truncated)
951
X5
1, 5, 6, 7 (truncated)
1049
X6
2, 3, 5, 7 (truncated)
1034
Protein The protein has a molecular mass of 32,142 Daltons .[ 3] protein isoforms . The primary isoform (X1) is 287 amino acids long.[ 4]
C2orf73 contains a short sequence motif , GDWWSH (This motif does not yet have any known function). The protein is lysine rich and leucine poor compared to the content of the average Human gene and has a predicted isoelectric point of 9.305.[ 5]
Isoform
From mRNA Isoform
Length (Amino Acids)
Molecular Weight (kDa)
Isoelectric Point
X1
Primary, X1
287
32.1
9.305
X2
X2
229
25.4
9.120
X3
X3, X4, X5
166
18.1
9.703
X4
X6
143
16.7
8.790
Structure A 3D structure for C2orf73 has not yet been determined experimentally. A computational prediction made by I-TASSER is presented to the right.[ 6]
File:Predicted C2orf73 Protein Structure.png Predicted 3D structure of Human C2orf73 protein generated by I-TASSER.[ 7] [ 8] [ 9] The PELE tool on Biology Workbench predicts three likely α-helices and one β-strand in the protein.[ 10]
Post translational modifications The GPS, NetPhos, MyHits and SUMOsp tools on ExPASy [ 11] post-translational modifications for the protein. Six potential phosphorylation sites and one sumoylation site are predicted.
Subcellular localization PSORT II predicts C2orf73 to be localized to the nucleus.[ 12] nuclear cytoplasmic transport .[ 13]
Expression GEO profiles from NCBI show that C2orf73 is weakly expressed in the following tissues in Humans: bone marrow , liver, heart, lung, brain, spinal cord , skeletal muscle , thymus , and epithelium .[ 14]
Regulation of expression The Genomatix El Dorado tool predicts many transcription factors to have a high binding affinity in the 1100 base pairs upstream of C2orf73 . Many of the transcription factors normally regulate processes such as cell development and differentiation , cell death , and the cell cycle .[ 15]
Interacting Proteins Three proteins have been experimentally determined to interact with C2orf73 through Yeast Two-Hybrid experiments.[ 16]
FCH and Double SH3 Domains 2 (FCHSD2 ) - Function has not yet been defined
Heat Shock Protein Family B Member 1 (HSPB1 ) - Aids cell's resistance to stress
SH3 Domain Binding Protein 4 (SH3BP4 ) - Involved in endocytosis of specific cell surface receptors Function The function of C2orf73 is currently not well understood by the scientific community or anyone else.
Homology There are no paralogs of C2orf73 in the Human genome. Orthologs are found throughout, but are limited to, the phylum Chordata (with a few exceptions in other phyla of the kingdom Animalia , like the Octopus bimaculoides [ 17]
References
↑ "Homo sapiens chromosome 2 open reading frame 73 (C2orf73), mRNA - Nucleotide - NCBI" . www.ncbi.nlm.nih.gov . Retrieved 28 April 2017 .↑ "C2orf73 chromosome 2 open reading frame 73 [Homo sapiens (human)] - Gene - NCBI" . www.ncbi.nlm.nih.gov . Retrieved 28 April 2017 .↑ "C2orf73 Gene - GeneCards | CB073 Protein | CB073 Antibody" . www.genecards.org . Retrieved 28 April 2017 .↑ "C2orf73 chromosome 2 open reading frame 73 [Homo sapiens (human)] - Gene - NCBI" . www.ncbi.nlm.nih.gov . Retrieved 28 April 2017 .↑ "SDSC Biology Workbench" . workbench.sdsc.edu . Retrieved 28 April 2017 .↑ "I-TASSER server for protein structure and function prediction" . zhanglab.ccmb.med.umich.edu . Retrieved 28 April 2017 .↑ Zhang Y (January 2008). "I-TASSER server for protein 3D structure prediction". BMC Bioinformatics . 9 (1): 40. doi :10.1186/1471-2105-9-40 . PMID 18215316 . ↑ Yang J, Yan R, Roy A, Xu D, Poisson J, Zhang Y (January 2015). "The I-TASSER Suite: protein structure and function prediction" . Nature Methods . 12 (1): 7–8. doi :10.1038/nmeth.3213 . PMC 4428668 PMID 25549265 . ↑ Roy A, Kucukural A, Zhang Y (April 2010). "I-TASSER: a unified platform for automated protein structure and function prediction" . Nature Protocols . 5 (4): 725–38. doi :10.1038/nprot.2010.5 . PMC 2849174 PMID 20360767 . ↑ "SDSC Biology Workbench" . workbench.sdsc.edu . Retrieved 28 April 2017 .↑ "ExPASy: SIB Bioinformatics Resource Portal - Categories" . www.expasy.org . Retrieved 28 April 2017 .↑ "PSORT II Prediction" . psort.hgc.jp . Retrieved 28 April 2017 .↑ Hay RT (April 2005). "SUMO: a history of modification". Molecular Cell . 18 (1): 1–12. doi :10.1016/j.molcel.2005.03.012 . PMID 15808504 . ↑ "Home - GEO - NCBI" . www.ncbi.nlm.nih.gov . Retrieved 28 April 2017 .↑ "Genomatix - NGS Data Analysis & Personalized Medicine" . www.genomatix.de . Retrieved 28 April 2017 .↑ "PSICQUIC View" . www.ebi.ac.uk . Retrieved 28 April 2017 .↑ Altschul SF, Madden TL, Schäffer AA, Zhang J, Zhang Z, Miller W, Lipman DJ (September 1997). "Gapped BLAST and PSI-BLAST: a new generation of protein database search programs". Nucleic Acids Research . 25 (17): 3389–402. PMID 9254694 . ↑ "TimeTree :: The Timescale of Life" . www.timetree.org . Retrieved 28 April 2017 .
