Summary for CA IX (NES ID: 340)

Full Name
Carbonic anhydrase 9     UniProt    
Alternative Names
Carbonate dehydratase IX (CA-IX), Carbonic anhydrase IX (CAIX), Membrane antigen MN, P54/58N, Renal cell carcinoma-associated antigen G250, pMW1   
Organism
Homo sapiens (Human)    
Experimental Evidence for CRM1-mediated Export
Mutations That Affect Nuclear Export
Unknown
Mutations That Affect CRM1 Binding
Unknown
Functional Export Signals
Secondary Structure of Export Signal
Unknown
Other Residues Important for Export
Unknown
Sequence
Show FASTA Format Show Domain Info by CDD Show Secondary Structure by PSIPRED Show Conservation Score by AL2CO
10 20 30 40 50 60
MAPLCPSPWL PLLIPAPAPG LTVQLLLSLL LLVPVHPQRL PRMQEDSPLG GGSSGEDDPL
70 80 90 100 110 120
GEEDLPSEED SPREEDPPGE EDLPGEEDLP GEEDLPEVKP KSEEEGSLKL EDLPTVEAPG
130 140 150 160 170 180
DPQEPQNNAH RDKEGDDQSH WRYGGDPPWP RVSPACAGRF QSPVDIRPQL AAFCPALRPL
190 200 210 220 230 240
ELLGFQLPPL PELRLRNNGH SVQLTLPPGL EMALGPGREY RALQLHLHWG AAGRPGSEHT
250 260 270 280 290 300
VEGHRFPAEI HVVHLSTAFA RVDEALGRPG GLAVLAAFLE EGPEENSAYE QLLSRLEEIA
310 320 330 340 350 360
EEGSETQVPG LDISALLPSD FSRYFQYEGS LTTPPCAQGV IWTVFNQTVM LSAKQLHTLS
370 380 390 400 410 420
DTLWGPGDSR LQLNFRATQP LNGRVIEASF PAGVDSSPRA AEPVQLNSCL AAGDILALVF
430 440 450
GLLFAVTSVA FLVQMRRQHR RGTKGGVSYR PAEVAETGA
3D Structures in PDB
2HKF (X-Ray,2.01 Å resolution)
5DVX (X-Ray,1.6 Å resolution)
Comments
CA IX is a transmembrane protein at the cell surface with an extracellular catalytic domain, but have also been found in other compartments such as the nucleus. CRM1 was identified as an interactor of CA IX through IP experiments and the interaction was found to be dependent on the C-terminal region of CA IX. Under hypoxia, CRM1 and CA IX are found to redistribute to the nucleoli and co-localize in a LMB-sensitive manner. Putative NES identified in 412-429 can direct nuclear exit of EGFP fusion protein in LMB-sensitive manner. The sequence does not have a clear NES consensus match as there is an excess of hydrophobic residues.
References
[1]. "Binding of Carbonic Anhydrase IX to 45S rDNA Genes Is Prevented by exportin-1 in Hypoxic Cells"
Sasso E, Vitale M, Monteleone F, Boffo FL, Santoriello M, Sarnataro D, Garbi C, Sabatella M, Crifò B, Paolella LA, Minopoli G, Winum JY, Zambrano N. (2015) Biomed Res Int, 2015:674920 PubMed
[2]. "Characterization of Carbonic Anhydrase IX Interactome Reveals Proteins Assisting Its Nuclear Localization in Hypoxic Cells"
Buanne P, Renzone G, Monteleone F, Vitale M, Monti SM, Sandomenico A, Garbi C, Montanaro D, Accardo M, Troncone G, Zatovicova M, Csaderova L, Supuran CT, Pastorekova S, Scaloni A, De Simone G, Zambrano N. (2013) J Proteome Res, 12(1):282-92 PubMed
User Input
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