Accession | TIGR00947 |
Name | 2A73 |
Function | putative bicarbonate transporter, IctB family |
Gene Symbol | ictB |
Trusted Cutoff | 366.40 |
Domain Trusted Cutoff | 366.40 |
Noise Cutoff | 209.65 |
Domain Noise Cutoff | 209.65 |
Isology Type | equivalog |
HMM Length | 425 |
Mainrole Category | Transport and binding proteins |
Subrole Category | Carbohydrates, organic alcohols, and acids |
Author | Loftus BJ, Haft DH |
Entry Date | Sep 21 2000 11:24AM |
Last Modified | Feb 14 2011 3:27PM |
Comment | This family of proteins is suggested to transport inorganic carbon (HCO3-), based on the phenotype of a mutant of IctB in Synechococcus sp. strain PCC 7942. Bicarbonate uptake is used by many photosynthetic organisms including cyanobacteria. These organisms are able to concentrate CO2/HCO3- against a greater than ten-fold concentration gradient. Cyanobacteria may have several such carriers operating with different efficiencies. Note that homology to various O-antigen ligases, with possible implications for mutant cell envelope structure, might allow alternatives to the interpretation of IctB as a bicarbonate transport protein. |
References | DR URL; http://www-biology.ucsd.edu/~msaier/transport/2_A_73.html
DR Interpro; IPR006007
DR PFAM; PF04932
RN [1]
RM PMID:9688546
RT A putative HCO3- transporter in the cyanobacterium Synechococcus sp. strain PCC 7942.
RA Bonfil DJ, Ronen-Tarazi M, Sultemeyer D, Lieman-Hurwitz J, Schatz D, Kaplan A
RL FEBS Lett. 1998 Jul 3;430(3):236-40. |