endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / endonucleolytic cleavage in ITS1 to separate SSU-rRNA from 5.8S rRNA and LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of LSU-rRNA / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / ribosomal large subunit biogenesis / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of SSU-rRNA / small-subunit processome / modification-dependent protein catabolic process / protein tag activity ...endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / endonucleolytic cleavage in ITS1 to separate SSU-rRNA from 5.8S rRNA and LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of LSU-rRNA / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / ribosomal large subunit biogenesis / maturation of SSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of SSU-rRNA / small-subunit processome / modification-dependent protein catabolic process / protein tag activity / rRNA processing / ribosomal small subunit biogenesis / small ribosomal subunit rRNA binding / ribosome biogenesis / ribosomal small subunit assembly / small ribosomal subunit / 5S rRNA binding / large ribosomal subunit rRNA binding / cytosolic small ribosomal subunit / ribosomal large subunit assembly / cytoplasmic translation / cytosolic large ribosomal subunit / negative regulation of translation / rRNA binding / ribosome / protein ubiquitination / structural constituent of ribosome / ribonucleoprotein complex / translation / mRNA binding / ubiquitin protein ligase binding / nucleolus / RNA binding / zinc ion binding / nucleus / metal ion binding / cytosol Similarity search - Function
Ribosomal protein L40e, archaeal / Ribosomal protein L18/L18-A/B/e, conserved site / Ribosomal protein L18e signature. / : / Ribosomal protein L18e / Ribosomal protein 60S L18 and 50S L18e / metallochaperone-like domain / Ribosomal protein L41 / Ribosomal protein L41 / TRASH domain ...Ribosomal protein L40e, archaeal / Ribosomal protein L18/L18-A/B/e, conserved site / Ribosomal protein L18e signature. / : / Ribosomal protein L18e / Ribosomal protein 60S L18 and 50S L18e / metallochaperone-like domain / Ribosomal protein L41 / Ribosomal protein L41 / TRASH domain / Ribosomal protein S26e / Ribosomal protein S26e superfamily / Ribosomal protein S26e / Ribosomal protein S5, eukaryotic/archaeal / Ribosomal protein L29e / Ribosomal L29e protein family / Ribosomal protein L1 / Ribosomal protein L13e, conserved site / Ribosomal protein L13e signature. / Ribosomal protein S21e / Ribosomal protein S21e superfamily / Ribosomal protein S21e / Ribosomal protein S2, eukaryotic / Ribosomal protein L22e / Ribosomal protein L22e superfamily / Ribosomal L22e protein family / Ribosomal protein L38e / Ribosomal protein L38e superfamily / Ribosomal L38e protein family / 40S Ribosomal protein S10 / Plectin/S10, N-terminal / Ribosomal protein L10e, conserved site / Plectin/S10 domain / Ribosomal protein L10e signature. / Ribosomal protein S25 / S25 ribosomal protein / Ribosomal protein L10e / Ribosomal protein L13e / Ribosomal protein L13e / Ribosomal protein S2, eukaryotic/archaeal / 60S ribosomal protein L18a/ L20, eukaryotes / Ribosomal protein S30 / Ribosomal protein S30 / 40S ribosomal protein S29/30S ribosomal protein S14 type Z / : / Ribosomal protein L24e, conserved site / Ribosomal protein L24e signature. / Ribosomal protein L1, 3-layer alpha/beta-sandwich / Ribosomal protein L44e / Ribosomal protein L44 / Ribosomal protein S3, eukaryotic/archaeal / Ribosomal protein L5 eukaryotic, C-terminal / Ribosomal L18 C-terminal region / 50S ribosomal protein L18Ae/60S ribosomal protein L20 and L18a / Ribosomal protein S19e / Ribosomal protein S19e / Ribosomal_S19e / Ribosomal protein 50S-L18Ae/60S-L20/60S-L18A / Ribosomal L40e family / Ribosomal proteins 50S-L18Ae/60S-L20/60S-L18A / Ribosomal protein S4e, N-terminal, conserved site / Ribosomal protein S4e signature. / Ribosomal_L40e / Ribosomal protein L40e / 40S ribosomal protein S4, C-terminal domain / Ribosomal protein L40e superfamily / 40S ribosomal protein S4 C-terminus / Ribosomal protein L23/L25, N-terminal / Ribosomal protein L23, N-terminal domain / Eukaryotic Ribosomal Protein L27, KOW domain / Ribosomal protein S19A/S15e / Ribosomal protein L27e / Ribosomal protein L27e superfamily / Ribosomal L27e protein family / Ribosomal protein S17e / Ribosomal protein S17e-like superfamily / Ribosomal S17 / : / Ribosomal protein L34Ae / Ribosomal protein L34e / Ribosomal protein S6, eukaryotic / Ribosomal protein L14e domain / Ribosomal protein L35Ae, conserved site / 60S ribosomal protein L19 / Ribosomal protein L14 / Ribosomal protein L35Ae signature. / 40S ribosomal protein S1/3, eukaryotes / Ribosomal protein S4e, N-terminal / Ribosomal protein L30/YlxQ / RS4NT (NUC023) domain / Ribosomal protein L7A/L8 / Ribosomal protein L13, eukaryotic/archaeal / 40S ribosomal protein S11, N-terminal / Ribosomal_S17 N-terminal / Ribosomal protein S7e / Ribosomal protein S7e / 60S ribosomal protein L35 / Ribosomal protein S4, KOW domain / Ribosomal protein S4e / Ribosomal protein S4e, central region Similarity search - Domain/homology
RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / Ribosomal protein L39 / Ribosomal protein S27 / 40S ribosomal protein S30 / Ribosomal protein S19e / Small ribosomal subunit protein eS1 / Small ribosomal subunit protein uS2 ...RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / Ribosomal protein L39 / Ribosomal protein S27 / 40S ribosomal protein S30 / Ribosomal protein S19e / Small ribosomal subunit protein eS1 / Small ribosomal subunit protein uS2 / Ribosomal protein L10a / Ribosomal protein L29 / Large ribosomal subunit protein eL22 / Ribosomal protein L27 / 40S ribosomal protein S8 / Ribosomal protein L21 / Ribosomal L38e / 40S ribosomal protein S21 / Ribosomal protein S28 / Ribosomal protein L14 / Ribosomal protein S20 / Ribosomal protein L18 / Ribosomal protein S24 / Ribosomal protein L30 / 40S ribosomal protein S6 / 60S ribosomal protein L13 / Ribosomal protein S29A / Ribosomal protein L4 / Ribosomal protein L24e / 40S ribosomal protein S25 / 40S ribosomal protein S3 / Ribosomal protein L15 / Ribosomal protein S15 / Ribosomal protein S13 / Ribosomal protein L17 / 40S ribosomal protein S4 / Ribosomal protein L26 / Ribosomal protein L19 / Ribosomal protein L11 / Ribosomal protein S16 / Ribosomal protein L35a / Ribosomal protein S9 / 60S ribosomal protein L7a / Ribosomal protein L37 / Ribosomal protein L10 / Ribosomal protein L32 / Large ribosomal subunit protein eL34 / Ribosomal protein L31e / Ribosomal protein L23A / Ribosomal protein S2 / Ribosomal protein L37a / Ribosomal protein L6 / Ribosomal protein L44 / 40S ribosomal protein S26 / Ribosomal protein S17 / Ribosomal protein S10B / Ribosomal protein L7 / Ribosomal protein L3 / Ribosomal protein L23 / Ribosomal protein S23 / 60S ribosomal protein L18a / 40S ribosomal protein S7 / Ribosomal protein L13a / Ribosomal protein S11 / 50S ribosomal protein L40e / Ribosomal protein L36e / 60S ribosomal protein L29 / Ribosomal protein S18 / Ribosomal protein L27a / Ribosomal protein S5 / Ribosomal protein L8 / Ribosomal protein L5 / Ribosomal protein S15A / Ribosomal protein S14 / 60S ribosomal protein L41 Similarity search - Component
Biological species
Giardia lamblia ATCC 50803 (eukaryote)
Method
ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.33 Å
Journal: Nucleic Acids Res / Year: 2023 Title: Insights into translocation mechanism and ribosome evolution from cryo-EM structures of translocation intermediates of Giardia intestinalis. Authors: Soneya Majumdar / Andrew Emmerich / Sascha Krakovka / Chandra Sekhar Mandava / Staffan G Svärd / Suparna Sanyal / Abstract: Giardia intestinalis is a protozoan parasite that causes diarrhea in humans. Using single-particle cryo-electron microscopy, we have determined high-resolution structures of six naturally populated ...Giardia intestinalis is a protozoan parasite that causes diarrhea in humans. Using single-particle cryo-electron microscopy, we have determined high-resolution structures of six naturally populated translocation intermediates, from ribosomes isolated directly from actively growing Giardia cells. The highly compact and uniquely GC-rich Giardia ribosomes possess eukaryotic rRNAs and ribosomal proteins, but retain some bacterial features. The translocation intermediates, with naturally bound tRNAs and eukaryotic elongation factor 2 (eEF2), display characteristic ribosomal intersubunit rotation and small subunit's head swiveling-universal for translocation. In addition, we observe the eukaryote-specific 'subunit rolling' dynamics, albeit with limited features. Finally, the eEF2·GDP state features a uniquely positioned 'leaving phosphate (Pi)' that proposes hitherto unknown molecular events of Pi and eEF2 release from the ribosome at the final stage of translocation. In summary, our study elucidates the mechanism of translocation in the protists and illustrates evolution of the translation machinery from bacteria to eukaryotes from both the structural and mechanistic perspectives.
LA: Ribosomal protein L2 LB: Ribosomal protein L3 LC: Ribosomal protein L4 LD: 5.8S rRNA LE: 5S rRNA LF: Ribosomal protein L5 LG: Ribosomal protein L39 LH: Ribosomal protein L7 LI: Ribosomal protein L7a LJ: Ribosomal protein L6 LK: Ribosomal protein L10 LL: Ribosomal protein L11 LM: Ribosomal protein L13 LN: Ribosomal protein L14 LO: Ribosomal protein L15 LP: Ribosomal protein L13a LQ: Ribosomal protein L17 LR: Ribosomal protein L18 LS: Ribosomal protein L19 LT: Ribosomal protein L18a LU: Ribosomal protein L21 LV: Ribosomal protein L22e LW: Ribosomal protein L23 LX: Ribosomal protein L24 LY: Ribosomal protein L23A LZ: Ribosomal protein L26 La: Ribosomal protein L27 Lb: Ribosomal protein L27a Lc: Ribosomal protein L29 Ld: Ribosomal protein L30 Le: Ribosomal protein L31B Lf: Ribosomal protein L32 Lg: Ribosomal protein L35a Lh: Ribosomal protein L34 Li: Ribosomal protein L29 Lj: Ribosomal protein L36-1 Lk: Ribosomal protein L37 Ll: Ribosomal protein L38e Ln: Ribosomal protein L10a Lo: Ribosomal protein L41 Lp: Ribosomal protein L44 Lq: Ribosomal protein L37a Ls: Ubiquitin/Ribosomal protein L40e Lt: Large Subunit rRNA SA: Ribosomal protein SA SB: Ribosomal protein S2 SC: Ribosomal protein S3 SD: Ribosomal protein S3a SE: Ribosomal protein S4 SF: Ribosomal protein S5 SG: Ribosomal protein S6 SH: Ribosomal protein S7 SI: Ribosomal protein S8 SJ: Ribosomal protein S15A SK: Ribosomal protein S9 SL: Ribosomal protein S10B SM: Ribosomal protein S11 SO: Ribosomal protein S23 SP: Ribosomal protein S13 SQ: Ribosomal protein S14 SR: Ribosomal protein S15 ST: Ribosomal protein S16 SU: Ribosomal protein S17 SV: Ribosomal protein S18 SW: Ribosomal protein S19e SX: Ribosomal protein S20 SY: Ribosomal protein S21 Sb: Ribosomal protein S24 Sc: Ribosomal protein S25 Sd: Ribosomal protein S26 Se: Ribosomal protein S27 Sg: Ribosomal protein S28 Sh: Ribosomal protein S29A Sj: Ribosomal protein S30 St: Small Subunit rRNA
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Giardia lamblia ATCC 50803 (eukaryote)
Authors
Sweden, 
United States, 7items 
Citation
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Electron microscopy imaging
FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: OTHER
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