Protein Domain : IPR019906

Type:  Family Name:  Ribosomal protein L6, bacterial-type
Description:  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 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 [, ].L6 is a protein from the large (50S) subunit. In Escherichia coli, it is located in the aminoacyl-tRNA binding site of the peptidyltransferase centre, and is known to bind directly to 23S rRNA. It belongs to a family of ribosomal proteins, including L6 from bacteria, cyanelles (structures that perform similar functions to chloroplasts, but have structural and biochemical characteristics of Cyanobacteria) and mitochondria; and L9 from mammals, Drosophila, plants and yeast. L6 contains two domains with almost identical folds, suggesting that is was derived by the duplication of anancient RNA-binding protein gene. Analysis reveals several sites on the protein surface where interactions with other ribosome components may occur, the N terminus being involved in protein-protein interactions and the C terminus containing possible RNA-binding sites []. Short Name:  Ribosomal_L6_bac-type

0 Child Features

2 Contains

DB identifier Type Name
IPR020040 Domain Ribosomal protein L6, alpha-beta domain
IPR002358 Conserved_site Ribosomal protein L6, conserved site

3 Cross Referencess

Identifier
PR00059
TIGR03654
MF_01365_B

0 Found In

4 GO Annotations

GO Term Gene Name
GO:0003735 IPR019906
GO:0019843 IPR019906
GO:0006412 IPR019906
GO:0005840 IPR019906

4 Ontology Annotations

GO Term Gene Name
GO:0003735 IPR019906
GO:0019843 IPR019906
GO:0006412 IPR019906
GO:0005840 IPR019906

1 Parent Features

DB identifier Type Name
IPR000702 Family Ribosomal protein L6

729 Proteins

DB identifier UniProt Accession Secondary Identifier Organism Name Length
107348 D8S2Z9 PAC:15419984 Selaginella moellendorffii 212  
6327 D8R6I0 PAC:15420852 Selaginella moellendorffii 171  
evm.model.supercontig_8.216 PAC:16426504 Carica papaya 210  
evm.model.supercontig_903.1 PAC:16428447 Carica papaya 102  
28152.m000876 B9SNA1 PAC:16800026 Ricinus communis 102  
Cucsa.127440.1 A0A0A0KJ40 PAC:16962046 Cucumis sativus 102  
Cucsa.127440.2 A0A0A0KJ40 PAC:16962047 Cucumis sativus 102  
Cucsa.148470.1 A0A0A0K3K9 PAC:16964159 Cucumis sativus 233  
orange1.1g029116m A0A067DFB5 PAC:18134332 Citrus sinensis 199  
orange1.1g027306m A0A067DFQ4 PAC:18134331 Citrus sinensis 225  
orange1.1g046142m A0A067DCW6 PAC:18126431 Citrus sinensis 132  
orange1.1g033325m A0A067D8Z4 PAC:18110444 Citrus sinensis 122  
AT1G05190.1 O23049 PAC:19651708 Arabidopsis thaliana 223  
AT2G18400.1 Q9ZPX2 PAC:19638804 Arabidopsis thaliana 102  
Thhalv10022927m V4NUZ9 PAC:20202290 Eutrema salsugineum 102  
Thhalv10008693m V4L299 PAC:20188738 Eutrema salsugineum 226  
Ciclev10016578m V4TK23 PAC:20816737 Citrus clementina 225  
Ciclev10017281m V4W225 PAC:20818564 Citrus clementina 103  
Lus10014306 PAC:23164685 Linum usitatissimum 102  
Lus10026015 PAC:23173165 Linum usitatissimum 167  
Lus10029120 PAC:23151721 Linum usitatissimum 228  
Lus10013041 PAC:23149867 Linum usitatissimum 274  
Potri.014G153000.1 B9IAF0 PAC:27035308 Populus trichocarpa 227  
Potri.014G153000.2 PAC:27035309 Populus trichocarpa 225  
Potri.002G229500.1 A0A2K2BN27 PAC:27023013 Populus trichocarpa 215  
Potri.007G024900.1 A9PDZ0 PAC:27015739 Populus trichocarpa 102  
Potri.007G024900.3 A9PDZ0 PAC:27015740 Populus trichocarpa 102  
Potri.007G024900.2 A9PDZ0 PAC:27015738 Populus trichocarpa 102  
Gorai.013G101000.1 A0A0D2W4P5 PAC:26787029 Gossypium raimondii 225  
Gorai.006G223700.1 A0A0D2S0T6 PAC:26831093 Gossypium raimondii 149  

4 Publications

First Author Title Year Journal Volume Pages PubMed ID
            11297922
            11290319
            11114498
            8262035