7NRC image
Deposition Date 2021-03-03
Release Date 2021-05-05
Last Version Date 2025-04-09
Entry Detail
PDB ID:
7NRC
Keywords:
RIBOSOME
Title:
Structure of the yeast Gcn1 bound to a leading stalled 80S ribosome with Rbg2, Gir2, A- and P-tRNA and eIF5A
Biological Source:
Source Organism:
Saccharomyces cerevisiae S288C (Taxon ID: 559292)
Method Details:
Experimental Method:
ELECTRON MICROSCOPY
Resolution:
3.90 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
7NRC validation report
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:GCN1
Chain IDs:HC (auth: A)
Chain Length:1209
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
Polymer Type:polyribonucleotide
Molecule:25S rRNA (3184-MER)
Chain IDs:NA (auth: LA)
Chain Length:3394
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
Polymer Type:polyribonucleotide
Molecule:5S rRNA (121-MER)
Chain IDs:OA (auth: LB)
Chain Length:135
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
Polymer Type:polyribonucleotide
Molecule:5.8S rRNA (158-MER)
Chain IDs:PA (auth: LC)
Chain Length:148
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L2-A
Gene (Uniprot):RPL2A
Chain IDs:QA (auth: LD)
Chain Length:58
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P0CX45 Pfam ID:PF00181, PF03947
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L3
Gene (Uniprot):RPL3
Chain IDs:RA (auth: LE)
Chain Length:96
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P14126 Pfam ID:PF00297
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L4-A
Gene (Uniprot):RPL4A
Chain IDs:SA (auth: LF)
Chain Length:109
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P10664 Pfam ID:PF00573, PF14374
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L5
Gene (Uniprot):RPL5
Chain IDs:TA (auth: LG)
Chain Length:294
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P26321 Pfam ID:PF17144, PF14204
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L6-B
Gene (Uniprot):RPL6B
Chain IDs:UA (auth: LH)
Chain Length:175
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P05739 Pfam ID:PF01159
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L7-A
Gene (Uniprot):RPL7A
Chain IDs:VA (auth: LI)
Chain Length:112
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P05737 Pfam ID:PF08079, PF00327
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L8-A
Gene (Uniprot):RPL8A
Chain IDs:WA (auth: LJ)
Chain Length:119
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P17076 Pfam ID:PF01248
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L9-A
Gene (Uniprot):RPL9A
Chain IDs:XA (auth: LK)
Chain Length:191
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P05738 Pfam ID:PF00347
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L10
Gene (Uniprot):RPL10
Chain IDs:YA (auth: LL)
Chain Length:218
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P41805 Pfam ID:PF00252
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L11-B
Gene (Uniprot):RPL11B
Chain IDs:ZA (auth: LM)
Chain Length:169
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:Q3E757 Pfam ID:PF00281, PF00673
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L13-A
Gene (Uniprot):RPL13A
Chain IDs:AB (auth: LN)
Chain Length:193
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:Q12690 Pfam ID:PF01294
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L14-A
Gene (Uniprot):RPL14A
Chain IDs:BB (auth: LO)
Chain Length:136
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P36105 Pfam ID:PF00467, PF01929
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L15-A
Gene (Uniprot):RPL15A
Chain IDs:CB (auth: LP)
Chain Length:203
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P05748 Pfam ID:PF00827
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L16-A
Gene (Uniprot):RPL16A
Chain IDs:DB (auth: LQ)
Chain Length:103
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P26784 Pfam ID:PF00572
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L17-A
Gene (Uniprot):RPL17A
Chain IDs:EB (auth: LR)
Chain Length:91
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P05740 Pfam ID:PF00237
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L18-A
Gene (Uniprot):RPL18A
Chain IDs:FB (auth: LS)
Chain Length:154
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P0CX49 Pfam ID:PF17135
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L19-A
Gene (Uniprot):RPL19A
Chain IDs:GB (auth: LT)
Chain Length:210
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P0CX82 Pfam ID:PF01280
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L20-A
Gene (Uniprot):RPL20A
Chain IDs:HB (auth: LU)
Chain Length:171
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P0CX23 Pfam ID:PF01775
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L21-A
Gene (Uniprot):RPL21A
Chain IDs:IB (auth: LV)
Chain Length:159
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:Q02753 Pfam ID:PF01157
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L22-A
Gene (Uniprot):RPL22A
Chain IDs:JB (auth: LW)
Chain Length:100
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P05749 Pfam ID:PF01776
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L23-A
Gene (Uniprot):RPL23A
Chain IDs:KB (auth: LX)
Chain Length:136
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P0CX41 Pfam ID:PF00238
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L24-A
Gene (Uniprot):RPL24A
Chain IDs:LB (auth: LY)
Chain Length:65
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P04449 Pfam ID:PF01246
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L25
Gene (Uniprot):RPL25
Chain IDs:MB (auth: LZ)
Chain Length:121
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P04456 Pfam ID:PF03939, PF00276
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L26-A
Gene (Uniprot):RPL26A
Chain IDs:NB (auth: La)
Chain Length:3394
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P05743 Pfam ID:PF16906, PF00467
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L27-A
Gene (Uniprot):RPL27A
Chain IDs:OB (auth: Lb)
Chain Length:135
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P0C2H6 Pfam ID:PF01777
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L28
Gene (Uniprot):RPL28
Chain IDs:PB (auth: Lc)
Chain Length:148
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P02406 Pfam ID:PF00828
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L29
Gene (Uniprot):RPL29
Chain IDs:QB (auth: Ld)
Chain Length:58
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P05747 Pfam ID:PF01779
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L30
Gene (Uniprot):RPL30
Chain IDs:RB (auth: Le)
Chain Length:96
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P14120 Pfam ID:PF01248
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L31-A
Gene (Uniprot):RPL31A
Chain IDs:SB (auth: Lf)
Chain Length:109
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P0C2H8 Pfam ID:PF01198
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L32
Gene (Uniprot):RPL32
Chain IDs:TB (auth: Lg)
Chain Length:294
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P38061 Pfam ID:PF01655
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L33-A
Gene (Uniprot):RPL33A
Chain IDs:UB (auth: Lh)
Chain Length:175
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P05744 Pfam ID:PF01247
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L34-A
Gene (Uniprot):RPL34A
Chain IDs:VB (auth: Li)
Chain Length:112
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P87262 Pfam ID:PF01199
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L35-A
Gene (Uniprot):RPL35A
Chain IDs:WB (auth: Lj)
Chain Length:119
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P0CX84 Pfam ID:PF00831
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L36-A
Gene (Uniprot):RPL36A
Chain IDs:XB (auth: Lk)
Chain Length:191
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P05745 Pfam ID:PF01158
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L37-A
Gene (Uniprot):RPL37A
Chain IDs:YB (auth: Ll)
Chain Length:218
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P49166 Pfam ID:PF01907
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L38
Gene (Uniprot):RPL38
Chain IDs:ZB (auth: Lm)
Chain Length:169
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P49167 Pfam ID:PF01781
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L39
Gene (Uniprot):RPL39
Chain IDs:AC (auth: Ln)
Chain Length:193
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P04650 Pfam ID:PF00832
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L40-A
Gene (Uniprot):RPL40A
Chain IDs:BC (auth: Lo)
Chain Length:136
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P0CH08 Pfam ID:PF01020
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L41-A
Gene (Uniprot):RPL41A
Chain IDs:CC (auth: Lp)
Chain Length:203
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P0CX86 Pfam ID:PF05162
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L42-A
Gene (Uniprot):RPL42A
Chain IDs:DC (auth: Lq)
Chain Length:103
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P0CX27 Pfam ID:PF00935
Protein Blast
Polymer Type:polypeptide(L)
Molecule:60S ribosomal protein L43-A
Gene (Uniprot):RPL43A
Chain IDs:EC (auth: Lr)
Chain Length:91
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P0CX25 Pfam ID:PF01780
Protein Blast
Polymer Type:polypeptide(L)
Molecule:eiF5A
Gene (Uniprot):HYP2
Chain IDs:FC (auth: Ls)
Chain Length:154
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P23301 Pfam ID:PF21485, PF01287
Polymer Type:polypeptide(L)
Molecule:L1 60S ribosomal protein
Chain IDs:GC (auth: Lt)
Chain Length:210
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
Polymer Type:polyribonucleotide
Molecule:18S rRNA (1771-MER)
Chain IDs:A (auth: S2)
Chain Length:1800
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S3
Gene (Uniprot):RPS3
Chain IDs:G (auth: SA)
Chain Length:87
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P05750 Pfam ID:PF07650, PF00189
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S5
Gene (Uniprot):RPS5
Chain IDs:I (auth: SB)
Chain Length:129
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P26783 Pfam ID:PF00177
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S10-A
Gene (Uniprot):RPS10A
Chain IDs:N (auth: SC)
Chain Length:144
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:Q08745 Pfam ID:PF03501
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S12
Gene (Uniprot):RPS12
Chain IDs:P (auth: SD)
Chain Length:134
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P48589 Pfam ID:PF01248
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S15
Gene (Uniprot):RPS15
Chain IDs:E (auth: SE)
Chain Length:117
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:Q01855 Pfam ID:PF00203
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S16-A
Gene (Uniprot):RPS16A
Chain IDs:S (auth: SF)
Chain Length:81
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P0CX51 Pfam ID:PF00380
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S17-B
Gene (Uniprot):RPS17B
Chain IDs:T (auth: SG)
Chain Length:125
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P14127 Pfam ID:PF00833
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S18-A
Gene (Uniprot):RPS18A
Chain IDs:U (auth: SH)
Chain Length:145
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P0CX55 Pfam ID:PF00416
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S19-A
Gene (Uniprot):RPS19A
Chain IDs:V (auth: SI)
Chain Length:143
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P07280 Pfam ID:PF01090
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S20
Gene (Uniprot):RPS20
Chain IDs:W (auth: SJ)
Chain Length:100
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P38701 Pfam ID:PF00338
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S25-A
Gene (Uniprot):RPS25A
Chain IDs:BA (auth: SK)
Chain Length:82
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:Q3E792 Pfam ID:PF03297
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S28-A
Gene (Uniprot):RPS28A
Chain IDs:IA (auth: SL)
Chain Length:6
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:Q3E7X9 Pfam ID:PF01200
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S29-A
Gene (Uniprot):RPS29A
Chain IDs:EA (auth: SM)
Chain Length:76
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P41057 Pfam ID:PF00253
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S31
Gene (Uniprot):RPS31
Chain IDs:GA (auth: SN)
Chain Length:75
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P05759 Pfam ID:PF01599
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Guanine nucleotide-binding protein subunit beta-like protein
Gene (Uniprot):ASC1
Chain IDs:HA (auth: SO)
Chain Length:366
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P38011 Pfam ID:PF00400
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S0-A
Gene (Uniprot):RPS0A
Chain IDs:C (auth: SP)
Chain Length:206
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P32905 Pfam ID:PF00318
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S1-A
Gene (Uniprot):RPS1A
Chain IDs:D (auth: SQ)
Chain Length:232
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P33442 Pfam ID:PF01015
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S2
Gene (Uniprot):RPS2
Chain IDs:F (auth: SR)
Chain Length:216
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P25443 Pfam ID:PF00333, PF03719
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S4-A
Gene (Uniprot):RPS4A
Chain IDs:H (auth: SS)
Chain Length:258
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P0CX35 Pfam ID:PF08071, PF01479, PF00900, PF00467, PF16121
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S6-A
Gene (Uniprot):RPS6A
Chain IDs:J (auth: ST)
Chain Length:228
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P0CX37 Pfam ID:PF01092
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S7-A
Gene (Uniprot):RPS7A
Chain IDs:K (auth: SU)
Chain Length:184
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P26786 Pfam ID:PF01251
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S8-A
Gene (Uniprot):RPS8A
Chain IDs:L (auth: SV)
Chain Length:198
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P0CX39 Pfam ID:PF01201
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S9-A
Gene (Uniprot):RPS9A
Chain IDs:M (auth: SW)
Chain Length:184
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:O13516 Pfam ID:PF00163, PF01479
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S11-A
Gene (Uniprot):RPS11A
Chain IDs:O (auth: SX)
Chain Length:142
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P0CX47 Pfam ID:PF16205, PF00366
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S13
Gene (Uniprot):RPS13
Chain IDs:Q (auth: SY)
Chain Length:150
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P05756 Pfam ID:PF08069, PF00312
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S14-B
Gene (Uniprot):RPS14B
Chain IDs:R (auth: SZ)
Chain Length:127
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P39516 Pfam ID:PF00411
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S21-A
Gene (Uniprot):RPS21A
Chain IDs:X (auth: Sa)
Chain Length:87
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P0C0V8 Pfam ID:PF01249
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S22-A
Gene (Uniprot):RPS22A
Chain IDs:Y (auth: Sb)
Chain Length:129
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P0C0W1 Pfam ID:PF00410
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S23-A
Gene (Uniprot):RPS23A
Chain IDs:Z (auth: Sc)
Chain Length:144
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P0CX29 Pfam ID:PF00164
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S24-A
Gene (Uniprot):RPS24A
Chain IDs:AA (auth: Sd)
Chain Length:134
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P0CX31 Pfam ID:PF01282
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S26-B
Gene (Uniprot):RPS26B
Chain IDs:CA (auth: Se)
Chain Length:117
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P39939 Pfam ID:PF01283
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S27-A
Gene (Uniprot):RPS27A
Chain IDs:DA (auth: Sf)
Chain Length:81
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P35997 Pfam ID:PF01667
Protein Blast
Polymer Type:polypeptide(L)
Molecule:40S ribosomal protein S30-A
Gene (Uniprot):RPS30A
Chain IDs:FA (auth: Sg)
Chain Length:125
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P0CX33 Pfam ID:PF04758
Polymer Type:polyribonucleotide
Molecule:RNA (5'-R(P*AP*UP*GP*AP*AP*A)-3')
Chain IDs:B (auth: Sl)
Chain Length:6
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
Polymer Type:polyribonucleotide
Molecule:tRNA (76-MER)
Chain IDs:JA (auth: Sm)
Chain Length:76
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
Polymer Type:polyribonucleotide
Molecule:tRNA (75-MER)
Chain IDs:KA (auth: Sn)
Chain Length:75
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Ribosome-interacting GTPase 2
Gene (Uniprot):RBG2
Chain IDs:LA (auth: So)
Chain Length:366
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
UniProt ID:P53295 Pfam ID:PF01926, PF16897, PF02824
Polymer Type:polypeptide(L)
Molecule:GIR2
Chain IDs:MA (auth: Sp)
Chain Length:206
Number of Molecules:1
Biological Source:Saccharomyces cerevisiae S288C
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
5CT FC LYS modified residue
Ligand Molecules
NA
Primary Citation
Structure of Gcn1 bound to stalled and colliding 80S ribosomes.
Proc.Natl.Acad.Sci.USA 118 ? ? (2021)
PMID: 33790014 DOI: 10.1073/pnas.2022756118

Abstact

The Gcn pathway is conserved in all eukaryotes, including mammals such as humans, where it is a crucial part of the integrated stress response (ISR). Gcn1 serves as an essential effector protein for the kinase Gcn2, which in turn is activated by stalled ribosomes, leading to phosphorylation of eIF2 and a subsequent global repression of translation. The fine-tuning of this adaptive response is performed by the Rbg2/Gir2 complex, a negative regulator of Gcn2. Despite the wealth of available biochemical data, information on structures of Gcn proteins on the ribosome has remained elusive. Here we present a cryo-electron microscopy structure of the yeast Gcn1 protein in complex with stalled and colliding 80S ribosomes. Gcn1 interacts with both 80S ribosomes within the disome, such that the Gcn1 HEAT repeats span from the P-stalk region on the colliding ribosome to the P-stalk and the A-site region of the lead ribosome. The lead ribosome is stalled in a nonrotated state with peptidyl-tRNA in the A-site, uncharged tRNA in the P-site, eIF5A in the E-site, and Rbg2/Gir2 in the A-site factor binding region. By contrast, the colliding ribosome adopts a rotated state with peptidyl-tRNA in a hybrid A/P-site, uncharged-tRNA in the P/E-site, and Mbf1 bound adjacent to the mRNA entry channel on the 40S subunit. Collectively, our findings reveal the interaction mode of the Gcn2-activating protein Gcn1 with colliding ribosomes and provide insight into the regulation of Gcn2 activation. The binding of Gcn1 to a disome has important implications not only for the Gcn2-activated ISR, but also for the general ribosome-associated quality control pathways.

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Disease

Primary Citation of related structures
7NRC