>TIGR00731 ctc_TL5 ribosomal protein L25, Ctc-form; InterPro: IPR001021 Ribosomes are the particles that catalyse mRNA-directed protein synthesis in all organisms. The codons of the mRNA are exposed on the ribosome to allow tRNA binding. This leads to the incorporation of amino acids into the growing polypeptide chain in accordance with the genetic information. Incoming amino acid monomers enter the ribosomal A site in the form of aminoacyl-tRNAs complexed with elongation factor Tu (EF-Tu) and GTP. The growing polypeptide chain, situated in the P site as peptidyl-tRNA, is then transferred to aminoacyl-tRNA and the new peptidyl-tRNA, extended by one residue, is translocated to the P site with the aid the elongation factor G (EF-G) and GTP as the deacylated tRNA is released from the ribosome through one or more exit sites , . About 2/3 of the mass of the ribosome consists of RNA and 1/3 of protein. The proteins are named in accordance with the subunit of the ribosome which they belong to - the small (S1 to S31) and the large (L1 to L44). Usually they decorate the rRNA cores of the subunits. Many of ribosomal proteins, particularly those of the large subunit, are composed of a globular, surfaced-exposed domain with long finger-like projections that extend into the rRNA core to stabilise its structure. Most of the proteins interact with multiple RNA elements, often from different domains. In the large subunit, about 1/3 of the 23S rRNA nucleotides are at least in van der Waal's contact with protein, and L22 interacts with all six domains of the 23S rRNA. Proteins S4 and S7, which initiate assembly of the 16S rRNA, are located at junctions of five and four RNA helices, respectively. In this way proteins serve to organise and stabilise the rRNA tertiary structure. While the crucial activities of decoding and peptide transfer are RNA based, proteins play an active role in functions that may have evolved to streamline the process of protein synthesis. In addition to their function in the ribosome, many ribosomal proteins have some function 'outside' the ribosome , . The bacterial ribosomal protein L25 is an RNA binding protein. Ribosomal protein L25 shows homology to general stress proteins and glutaminyl-tRNA synthetases .; GO: 0003735 structural constituent of ribosome, 0008097 5S rRNA binding, 0006412 translation, 0005622 intracellular, 0005840 ribosome.

Probab=100.00  E-value=2.1e-36  Score=248.46  Aligned_cols=179  Identities=34%  Similarity=0.644  Sum_probs=173.0

Q ss_pred             EEEEEECCCCCHHHHHHHHCCCCCEEEECCCCCCEEEEEEE---CHHHEEHHCCCCCEEEEEECCCCCCEEEEEEEEECC
Q ss_conf             99999168761778999978994389967898855699980---022100111466225799616775203786121214
Q gi|254780418|r    8 LSAVMRDKVGKGSARLLRKNGQIPAIIYGNMSDPKPIALSA---KDISKRLYSKNFMTTILTLDIGKELVHVIPKDYQLD   84 (191)
Q Consensus         8 L~~~~R~~~gk~~~r~lR~~G~VPaviYG~~~e~~~i~v~~---~~l~k~l~~~~~~~~v~~l~i~g~~~~vlikevQ~~   84 (191)
T Consensus         1 l~~~~r~~~~~~~~~~~r~~g~~pa~~yg~g~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l~~~~~~~~~~~~~~~~~   80 (182)
T TIGR00731         1 LEGKSRTEFGKSAARRIRKEGRIPAVVYGKGKEPVPLELKSLVFKEFLKYLRKGGLSNTVLTLDDGGKEFKVLVKDLQLN   80 (182)
T ss_pred             CEEEEEECCCHHHHHHHHHHCCCCEEEECCCCCCCCEEEHHHHHHHHHHHHHCCCCCEEEEEEECCCCEEEEEEHHHHHC
T ss_conf             93566412430456655550786478863886323213134566677876420132214676312782677630023211


Q ss_pred             CCCCCEEEEEEEEECCCCEEEEEEEEEEEECCCCCCCCCCCEEEEEEEEEEEEEEHHHCCCEEEECCCCCCCCCEEEEEE
Q ss_conf             32684654489993289769999636996056544321231135765457888807679634683222235697799997
Q gi|254780418|r   85 PVSDILIHADFLQVSEGSTVTVHVPVRFINENKSPGIKQGGKLNVVCHEVSLLCPANNIPDSITVDLNDLKIGDSIHMED  164 (191)
Q Consensus        85 p~~~~i~HvDF~~v~~~~~v~v~VPI~~~ge~~~~Gvk~GG~l~~~~~~i~v~~~p~~IPe~ievDvs~L~~Gd~i~v~D  164 (191)
T Consensus        81 ~~~~~~~h~d~~~~~~~~~~~~~~p~~~~g~~~g~g~k~gg~l~~~~~~~~~~~~p~~~p~~~~~d~~~~~~~~~~~~~d  160 (182)
T TIGR00731        81 PVTDEVIHVDFLEVDEGVPLKLEVPIKLEGAPIGLGVKNGGILTQLKRRIEVECKPKDLPEFLELDVSGLGVGESLKLSD  160 (182)
T ss_pred             CCCCEEEEEEEEEEECCCEEEEEEEEEECCCCCEEEECCCCEEEEEEEEEEEEECCCCCCCEEEEEEECCCCCCEEEEEE
T ss_conf             10010121012443247505888757871552102202573333322245676310137744689851479674455300


Q ss_pred             EECCCCCEECCCCCCEEEEEEC
Q ss_conf             5358886783689826999944
Q gi|254780418|r  165 IRLPEKTSSMSQLNITIATIVA  186 (191)
Q Consensus       165 l~lpegv~~l~d~~~~vvsv~~  186 (191)
T Consensus       161 ~~~p~~~~~~~~~~~~~~~~~~  182 (182)
T TIGR00731       161 LPLPAGVSLLTDPDEVVVTVIK  182 (182)
T ss_pred             ECCCCCCEEECCCCEEEEEEEC
T ss_conf             1047871440575417888719