Summary: Ribosomal L32p protein family
Ribosomal L32p protein family Provide feedback
No Pfam abstract.
Internal database links
|SCOOP:||DZR OrfB_Zn_ribbon RecR zf-ribbon_3|
|Similarity to PfamA using HHSearch:||zf-ribbon_3|
This tab holds annotation information from the InterPro database.
InterPro entry IPR002677
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 [PUBMED:11297922, PUBMED:11290319]. 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 [PUBMED:11290319, PUBMED:11114498].
Ribosomal protein L32p is part of the 50S ribosomal subunit. This family is found in both prokaryotes and eukaryotes. Ribosomal protein L32 of yeast binds to and regulates the splicing and the translation of the transcript of its own gene [PUBMED:9121443].
The mapping between Pfam and Gene Ontology is provided by InterPro. If you use this data please cite InterPro.
|Cellular component||large ribosomal subunit (GO:0015934)|
|Molecular function||structural constituent of ribosome (GO:0003735)|
|Biological process||translation (GO:0006412)|
- the number of sequences which exhibit this architecture
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This example describes an architecture with one
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A clan of zinc-binding ribbon domains.
The clan contains the following 81 members:A2L_zn_ribbon Auto_anti-p27 Baculo_LEF5_C CpXC DNA_RNApol_7kD DUF1451 DUF1610 DUF1936 DUF2072 DUF2116 DUF2180 DUF2387 DUF2614 DUF35_N DUF4379 DZR Elf1 GATA Lar_restr_allev LIM Mu-like_Com NinF NOB1_Zn_bind Nudix_N_2 Ogr_Delta OrfB_Zn_ribbon PhnA_Zn_Ribbon Prim_Zn_Ribbon RecO_C Ribosomal_L32p Ribosomal_L33 Ribosomal_L37ae Ribosomal_L37e Ribosomal_L40e Ribosomal_L44 Ribosomal_S27 Ribosomal_S27e RNA_POL_M_15KD Spt4 Stc1 TF_Zn_Ribbon TFIIS_C Tnp_zf-ribbon_2 Topo_Zn_Ribbon Toprim_Crpt Trm112p UPF0547 zf-C4 zf-C4_ClpX zf-C4_Topoisom zf-CHC2 zf-CSL zf-dskA_traR zf-FPG_IleRS zf-GRF zf-ISL3 zf-NADH-PPase zf-PARP zf-RanBP zf-ribbon_3 zf-RING_7 zf-RRN7 zf-TFIIB zf-trcl zf-ZPR1 zinc-ribbon_6 zinc-ribbons_6 zinc_ribbon_10 zinc_ribbon_11 zinc_ribbon_12 zinc_ribbon_13 zinc_ribbon_15 zinc_ribbon_2 zinc_ribbon_4 zinc_ribbon_5 zinc_ribbon_9 Zn-ribbon_8 Zn_ribbon_recom Zn_ribbon_SprT Zn_Tnp_IS1 Zn_Tnp_IS1595
We make a range of alignments for each Pfam-A family:
- the curated alignment from which the HMM for the family is built
- the alignment generated by searching the sequence database using the HMM
- Representative Proteomes (RPs) at 15%, 35%, 55% and 75% co-membership thresholds
- alignment generated by searching the UniProtKB sequence database using the family HMM
- alignment generated by searching the NCBI sequence database using the family HMM
- alignment generated by searching the metagenomics sequence database using the family HMM
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Curation and family details
|Seed source:||PSI-BLAST P31558|
|Number in seed:||123|
|Number in full:||4483|
|Average length of the domain:||55.10 aa|
|Average identity of full alignment:||33 %|
|Average coverage of the sequence by the domain:||71.89 %|
|HMM build commands:||
build method: hmmbuild -o /dev/null HMM SEED
search method: hmmsearch -Z 26740544 -E 1000 --cpu 4 HMM pfamseq
|Family (HMM) version:||22|
|Download:||download the raw HMM for this family|
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There are 7 interactions for this family. More...
For those sequences which have a structure in the Protein DataBank, we use the mapping between UniProt, PDB and Pfam coordinate systems from the PDBe group, to allow us to map Pfam domains onto UniProt sequences and three-dimensional protein structures. The table below shows the structures on which the Ribosomal_L32p domain has been found. There are 488 instances of this domain found in the PDB. Note that there may be multiple copies of the domain in a single PDB structure, since many structures contain multiple copies of the same protein seqence.
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