5LYB image
Deposition Date 2016-09-26
Release Date 2016-11-23
Last Version Date 2024-10-16
Entry Detail
PDB ID:
5LYB
Keywords:
Title:
Crystal structure of the S.cerevisiae 80S ribosome in complex with the A-site bound aminoacyl-tRNA analog ACCPmn
Biological Source:
Source Organism:
Method Details:
Experimental Method:
Resolution:
3.25 Å
R-Value Free:
0.24
R-Value Work:
0.20
R-Value Observed:
0.20
Space Group:
P 1 21 1
Macromolecular Entities
Polymer Type:polyribonucleotide
Molecule:25S rRNA
Chain IDs:JA (auth: 1), KD (auth: 5)
Chain Length:3394
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polyribonucleotide
Molecule:18S rRNA
Chain IDs:A (auth: 2), BC (auth: 6)
Chain Length:1800
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polyribonucleotide
Molecule:5S rRNA
Chain IDs:KA (auth: 3), LD (auth: 7)
Chain Length:121
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polyribonucleotide
Molecule:5.8S rRNA
Chain IDs:LA (auth: 4), MD (auth: 8)
Chain Length:158
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polyribonucleotide
Molecule:aminoacyl-tRNA fragment ACCPmn
Chain IDs:GF (auth: A), HF (auth: a)
Chain Length:3
Number of Molecules:2
Biological Source:synthetic construct
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S10-A,40S ribosomal protein S10-A,40S Ribosomal Protein S10-A
Gene (Uniprot):RPS10A
Chain IDs:L (auth: C0)
Chain Length:96
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S11-A,40S ribosomal protein S11-A,40S Ribosomal Protein S11-A
Gene (Uniprot):RPS11A
Chain IDs:M (auth: C1), NC (auth: c1)
Chain Length:155
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S Ribosomal Protein S12
Gene (Uniprot):RPS12
Chain IDs:N (auth: C2)
Chain Length:124
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S13
Gene (Uniprot):RPS13
Chain IDs:O (auth: C3), PC (auth: c3)
Chain Length:150
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S Ribosomal Protein S14
Gene (Uniprot):RPS14A
Chain IDs:P (auth: C4), QC (auth: c4)
Chain Length:128
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S15
Gene (Uniprot):RPS15
Chain IDs:Q (auth: C5)
Chain Length:131
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S16-A
Gene (Uniprot):RPS16A
Chain IDs:R (auth: C6), SC (auth: c6)
Chain Length:142
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S17-A
Gene (Uniprot):RPS17A
Chain IDs:S (auth: C7), TC (auth: c7)
Chain Length:125
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S18-A
Gene (Uniprot):RPS18A
Chain IDs:T (auth: C8), UC (auth: c8)
Chain Length:145
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S19-A
Gene (Uniprot):RPS19A
Chain IDs:U (auth: C9), VC (auth: c9)
Chain Length:143
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S20
Gene (Uniprot):RPS20
Chain IDs:V (auth: D0), WC (auth: d0)
Chain Length:110
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S21-A
Gene (Uniprot):RPS21A
Chain IDs:W (auth: D1), XC (auth: d1)
Chain Length:87
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S22-A
Gene (Uniprot):RPS22A
Chain IDs:X (auth: D2), YC (auth: d2)
Chain Length:129
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S23-A
Gene (Uniprot):RPS23A
Chain IDs:Y (auth: D3), ZC (auth: d3)
Chain Length:144
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S24-A
Gene (Uniprot):RPS24A
Chain IDs:Z (auth: D4), AD (auth: d4)
Chain Length:134
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S25-A
Gene (Uniprot):RPS25A
Chain IDs:AA (auth: D5), BD (auth: d5)
Chain Length:70
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S26-B
Gene (Uniprot):RPS26B
Chain IDs:BA (auth: D6), CD (auth: d6)
Chain Length:97
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S27-A
Gene (Uniprot):RPS27A
Chain IDs:CA (auth: D7), DD (auth: d7)
Chain Length:81
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S28-A
Gene (Uniprot):RPS28A
Chain IDs:DA (auth: D8), ED (auth: d8)
Chain Length:63
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S29-A
Gene (Uniprot):RPS29A
Chain IDs:EA (auth: D9), FD (auth: d9)
Chain Length:53
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S30-A
Gene (Uniprot):RPS30A
Chain IDs:FA (auth: E0), GD (auth: e0)
Chain Length:62
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:Ubiquitin-40S ribosomal protein S31
Gene (Uniprot):RPS31
Chain IDs:GA (auth: E1), HD (auth: e1)
Chain Length:76
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L2-A
Gene (Uniprot):RPL2A
Chain IDs:MA (auth: L2), ND (auth: l2)
Chain Length:252
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L3
Gene (Uniprot):RPL3
Chain IDs:NA (auth: L3), OD (auth: l3)
Chain Length:386
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L4-A
Gene (Uniprot):RPL4A
Chain IDs:OA (auth: L4), PD (auth: l4)
Chain Length:361
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L5
Gene (Uniprot):RPL5
Chain IDs:PA (auth: L5), QD (auth: l5)
Chain Length:296
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L6-A
Gene (Uniprot):RPL6A
Chain IDs:QA (auth: L6), RD (auth: l6)
Chain Length:175
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L7-A
Gene (Uniprot):RPL7A
Chain IDs:RA (auth: L7), SD (auth: l7)
Chain Length:223
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L8-A
Gene (Uniprot):RPL8A
Chain IDs:SA (auth: L8)
Chain Length:233
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L9-A
Gene (Uniprot):RPL9A
Chain IDs:TA (auth: L9), UD (auth: l9)
Chain Length:191
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L10
Gene (Uniprot):RPL10
Chain IDs:UA (auth: M0), VD (auth: m0)
Chain Length:220
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L11-B
Gene (Uniprot):RPL11B
Chain IDs:VA (auth: M1), WD (auth: m1)
Chain Length:169
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L13-A
Gene (Uniprot):RPL13A
Chain IDs:WA (auth: M3), YD (auth: m3)
Chain Length:194
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L14-A
Gene (Uniprot):RPL14A
Chain IDs:XA (auth: M4), ZD (auth: m4)
Chain Length:137
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L15-A
Gene (Uniprot):RPL15A
Chain IDs:YA (auth: M5), AE (auth: m5)
Chain Length:203
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L16-A
Gene (Uniprot):RPL16A
Chain IDs:ZA (auth: M6), BE (auth: m6)
Chain Length:197
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L17-A
Gene (Uniprot):RPL17A
Chain IDs:AB (auth: M7), CE (auth: m7)
Chain Length:183
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L18-A
Gene (Uniprot):RPL18A
Chain IDs:BB (auth: M8), DE (auth: m8)
Chain Length:185
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L19-A
Gene (Uniprot):RPL19A
Chain IDs:CB (auth: M9), EE (auth: m9)
Chain Length:188
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L20-A
Gene (Uniprot):RPL20A
Chain IDs:DB (auth: N0), FE (auth: n0)
Chain Length:172
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L21-A
Gene (Uniprot):RPL21A
Chain IDs:EB (auth: N1), GE (auth: n1)
Chain Length:159
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L22-A
Gene (Uniprot):RPL22A
Chain IDs:FB (auth: N2), HE (auth: n2)
Chain Length:100
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L23-A
Gene (Uniprot):RPL23A
Chain IDs:GB (auth: N3), IE (auth: n3)
Chain Length:136
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L24-A
Gene (Uniprot):RPL24A
Chain IDs:HB (auth: N4)
Chain Length:135
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L25
Gene (Uniprot):RPL25
Chain IDs:IB (auth: N5), KE (auth: n5)
Chain Length:121
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L26-A
Gene (Uniprot):RPL26A
Chain IDs:JB (auth: N6), LE (auth: n6)
Chain Length:126
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L27-A
Gene (Uniprot):RPL27A
Chain IDs:KB (auth: N7), ME (auth: n7)
Chain Length:135
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L28
Gene (Uniprot):RPL28
Chain IDs:LB (auth: N8), NE (auth: n8)
Chain Length:148
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L29
Gene (Uniprot):RPL29
Chain IDs:MB (auth: N9), OE (auth: n9)
Chain Length:58
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L30
Gene (Uniprot):RPL30
Chain IDs:NB (auth: O0), PE (auth: o0)
Chain Length:100
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L31-A
Gene (Uniprot):RPL31A
Chain IDs:OB (auth: O1), QE (auth: o1)
Chain Length:109
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L32
Gene (Uniprot):RPL32
Chain IDs:PB (auth: O2), RE (auth: o2)
Chain Length:127
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L33-A
Gene (Uniprot):RPL33A
Chain IDs:QB (auth: O3), SE (auth: o3)
Chain Length:106
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L34-A
Gene (Uniprot):RPL34A
Chain IDs:RB (auth: O4), TE (auth: o4)
Chain Length:112
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L35-A
Gene (Uniprot):RPL35A
Chain IDs:SB (auth: O5), UE (auth: o5)
Chain Length:119
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L36-A
Gene (Uniprot):RPL36A
Chain IDs:TB (auth: O6), VE (auth: o6)
Chain Length:99
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L37-A
Gene (Uniprot):RPL37A
Chain IDs:UB (auth: O7), WE (auth: o7)
Chain Length:87
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L38
Gene (Uniprot):RPL38
Chain IDs:VB (auth: O8), XE (auth: o8)
Chain Length:77
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L39
Gene (Uniprot):RPL39
Chain IDs:WB (auth: O9), YE (auth: o9)
Chain Length:50
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:Ubiquitin-60S ribosomal protein L40
Gene (Uniprot):RPL40A
Chain IDs:XB (auth: Q0), ZE (auth: q0)
Chain Length:52
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L41-A
Gene (Uniprot):RPL41A
Chain IDs:YB (auth: Q1), AF (auth: q1)
Chain Length:25
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L42-A
Gene (Uniprot):RPL42A
Chain IDs:ZB (auth: Q2), BF (auth: q2)
Chain Length:105
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L43-A
Gene (Uniprot):RPL43A
Chain IDs:AC (auth: Q3), CF (auth: q3)
Chain Length:91
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S0-A
Gene (Uniprot):RPS0A
Chain IDs:B (auth: S0), CC (auth: s0)
Chain Length:206
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S1-A
Gene (Uniprot):RPS1A
Chain IDs:C (auth: S1), DC (auth: s1)
Chain Length:216
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S2
Gene (Uniprot):RPS2
Chain IDs:D (auth: S2), EC (auth: s2)
Chain Length:217
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S3
Gene (Uniprot):RPS3
Chain IDs:E (auth: S3), FC (auth: s3)
Chain Length:223
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S4-A
Gene (Uniprot):RPS4A
Chain IDs:F (auth: S4), GC (auth: s4)
Chain Length:260
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S5
Gene (Uniprot):RPS5
Chain IDs:G (auth: S5), HC (auth: s5)
Chain Length:206
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S6-A
Gene (Uniprot):RPS6A
Chain IDs:H (auth: S6), IC (auth: s6)
Chain Length:226
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S7-A
Gene (Uniprot):RPS7A
Chain IDs:I (auth: S7), JC (auth: s7)
Chain Length:186
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S8-A
Gene (Uniprot):RPS8A
Chain IDs:J (auth: S8), KC (auth: s8)
Chain Length:199
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S9-A
Gene (Uniprot):RPS9A
Chain IDs:K (auth: S9), LC (auth: s9)
Chain Length:185
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:Suppressor protein STM1,Suppressor protein STM1,Suppressor protein STM1
Gene (Uniprot):STM1
Chain IDs:IA (auth: SM)
Chain Length:104
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:Guanine nucleotide-binding protein subunit beta-like protein
Gene (Uniprot):ASC1
Chain IDs:HA (auth: SR)
Chain Length:318
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S10-A,40S ribosomal protein S10-A,40S Ribosomal Protein S10
Gene (Uniprot):RPS10A
Chain IDs:MC (auth: c0)
Chain Length:96
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S15
Gene (Uniprot):RPS15
Chain IDs:RC (auth: c5)
Chain Length:131
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L8-A,60S ribosomal protein L8-A,60S Ribosomal Protein L8
Gene (Uniprot):RPL8A
Chain IDs:TD (auth: l8)
Chain Length:233
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S Ribosomal Protein L12
Chain IDs:XD (auth: m2)
Chain Length:150
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L24-A
Gene (Uniprot):RPL24A
Chain IDs:JE (auth: n4)
Chain Length:135
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S acidic ribosomal protein P0,60S acidic ribosomal protein P0,60S Ribosomal Protein P0
Gene (Uniprot):RPP0
Chain IDs:DF (auth: p0)
Chain Length:219
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:60S Ribosomal Protein P1/2
Chain IDs:EF (auth: p1), FF (auth: p2)
Chain Length:47
Number of Molecules:2
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:Suppressor protein STM1,Suppressor protein STM1,Ribosome-bound protein Stm1
Gene (Uniprot):STM1
Chain IDs:JD (auth: sM)
Chain Length:104
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Polymer Type:polypeptide(L)
Molecule:Guanine nucleotide-binding protein subunit beta-like protein
Gene (Uniprot):ASC1
Chain IDs:ID (auth: sR)
Chain Length:318
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae
Primary Citation
Molecular insights into protein synthesis with proline residues.
EMBO Rep. 17 1776 1784 (2016)
PMID: 27827794 DOI: 10.15252/embr.201642943

Abstact

Proline is an amino acid with a unique cyclic structure that facilitates the folding of many proteins, but also impedes the rate of peptide bond formation by the ribosome. As a ribosome substrate, proline reacts markedly slower when compared with other amino acids both as a donor and as an acceptor of the nascent peptide. Furthermore, synthesis of peptides with consecutive proline residues triggers ribosome stalling. Here, we report crystal structures of the eukaryotic ribosome bound to analogs of mono- and diprolyl-tRNAs. These structures provide a high-resolution insight into unique properties of proline as a ribosome substrate. They show that the cyclic structure of proline residue prevents proline positioning in the amino acid binding pocket and affects the nascent peptide chain position in the ribosomal peptide exit tunnel. These observations extend current knowledge of the protein synthesis mechanism. They also revise an old dogma that amino acids bind the ribosomal active site in a uniform way by showing that proline has a binding mode distinct from other amino acids.

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Protein

Chemical

Disease

Primary Citation of related structures