6nu2: Difference between revisions

== Function ==

[[http://www.uniprot.org/uniprot/RRFM_HUMAN RRFM_HUMAN]] Responsible for the release of ribosomes from messenger RNA at the termination of protein biosynthesis. May increase the efficiency of translation by recycling ribosomes from one round of translation to another (By similarity). [[http://www.uniprot.org/uniprot/RM14_HUMAN RM14_HUMAN]] Forms part of 2 intersubunit bridges in the assembled ribosome. Upon binding to MALSU1 intersubunit bridge formation is blocked, preventing ribosome formation and repressing translation (Probable).<ref>PMID:22829778</ref>  [[http://www.uniprot.org/uniprot/RM36_HUMAN RM36_HUMAN]] Component of the large subunit of the mitochondrial ribosome. [[http://www.uniprot.org/uniprot/G45IP_HUMAN G45IP_HUMAN]] Acts as a negative regulator of G1 to S cell cycle phase progression by inhibiting cyclin-dependent kinases. Inhibitory effects are additive with GADD45 proteins but occurs also in the absence of GADD45 proteins. Acts as a repressor of the orphan nuclear receptor NR4A1 by inhibiting AB domain-mediated transcriptional activity. May be involved in the hormone-mediated regulation of NR4A1 transcriptional activity. May play a role in mitochondrial protein synthesis. [[http://www.uniprot.org/uniprot/RM16_HUMAN RM16_HUMAN]] Component of the large subunit of mitochondrial ribosome. [[http://www.uniprot.org/uniprot/PTCD3_HUMAN PTCD3_HUMAN]] Mitochondrial RNA-binding protein that has a role in mitochondrial translation.<ref>PMID:19427859</ref>  [[http://www.uniprot.org/uniprot/RM18_HUMAN RM18_HUMAN]] Together with thiosulfate sulfurtransferase (TST), acts as a mitochondrial import factor for the cytosolic 5S rRNA. The precursor form shows RNA chaperone activity; is able to fold the 5S rRNA into an import-competent conformation that is recognized by rhodanese (TST). Both the cytoplasmic and mitochondrial forms are able to bind to the helix IV-loop D in the gamma domain of the 5S rRNA.<ref>PMID:21685364</ref>  [[http://www.uniprot.org/uniprot/ICT1_HUMAN ICT1_HUMAN]] Essential peptidyl-tRNA hydrolase component of the mitochondrial large ribosomal subunit. Acts as a codon-independent translation release factor that has lost all stop codon specificity and directs the termination of translation in mitochondrion, possibly in case of abortive elongation. May be involved in the hydrolysis of peptidyl-tRNAs that have been prematurely terminated and thus in the recycling of stalled mitochondrial ribosomes.<ref>PMID:20186120</ref>  [[http://www.uniprot.org/uniprot/RT29_HUMAN RT29_HUMAN]] Involved in mediating interferon-gamma-induced cell death. [[http://www.uniprot.org/uniprot/AKIP_HUMAN AKIP_HUMAN]] May act as a negative regulator of Aurora-A kinase, by down-regulation through proteasome-dependent degradation. [[http://www.uniprot.org/uniprot/RM41_HUMAN RM41_HUMAN]] Component of the mitochondrial ribosome large subunit. Also involved in apoptosis and cell cycle. Enhances p53/TP53 stability, thereby contributing to p53/TP53-induced apoptosis in response to growth-inhibitory condition. Enhances p53/TP53 translocation to the mitochondria. Has the ability to arrest the cell cycle at the G1 phase, possibly by stabilizing the CDKN1A and CDKN1B (p27Kip1) proteins.<ref>PMID:16024796</ref> <ref>PMID:16256947</ref>  [[http://www.uniprot.org/uniprot/RM44_HUMAN RM44_HUMAN]] Component of the 39S subunit of mitochondrial ribosome. May have a function in the assembly/stability of nascent mitochondrial polypeptides exiting the ribosome.<ref>PMID:23315540</ref>   

== References ==

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