Structure analysis

Structure of a partial yeast 48S preinitiation complex with eIF5 N-terminal domain (model C2)

Electron Microscopy
3.02Å resolution
Assembly composition:
hetero 47-mer (preferred)
Entry contents: 44 distinct polypeptide molecules
3 distinct RNA molecules

Assemblies

Assembly 1 (preferred)
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Multimeric state: hetero 47-mer
Accessible surface area: 528755.92 Å2
Buried surface area: 276647.77 Å2
Dissociation area: 1,200.43 Å2
Dissociation energy (ΔGdiss): 7.12 kcal/mol
Dissociation entropy (TΔSdiss): 15.2 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-108171

Macromolecules

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Chain: B
Length: 255 amino acids
Theoretical weight: 29.01 KDa
Source organism: Kluyveromyces lactis NRRL Y-1140
UniProt:
  • Canonical: Q6CWD0 (Residues: 1-255; Coverage: 100%)
Gene names: KLLA0B05060g, RPS1
Pfam: Ribosomal S3Ae family
InterPro:

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Chain: G
Length: 236 amino acids
Theoretical weight: 26.97 KDa
Source organism: Kluyveromyces lactis NRRL Y-1140
UniProt:
  • Canonical: Q6CM04 (Residues: 1-236; Coverage: 100%)
Gene names: KLLA0E24090g, RPS6
Pfam: Ribosomal protein S6e
InterPro:

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Chain: H
Length: 190 amino acids
Theoretical weight: 21.74 KDa
Source organism: Kluyveromyces lactis NRRL Y-1140
UniProt:
  • Canonical: Q6CTD6 (Residues: 1-190; Coverage: 100%)
Gene name: KLLA0_C13519g
Pfam: Ribosomal protein S7e
InterPro:

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Chain: K
Length: 106 amino acids
Theoretical weight: 12.58 KDa
Source organism: Kluyveromyces lactis NRRL Y-1140
UniProt:
  • Canonical: Q6CVZ5 (Residues: 1-106; Coverage: 100%)
Gene name: KLLA0_B08173g
Pfam: Plectin/S10 domain
InterPro:

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Chain: O
Length: 137 amino acids
Theoretical weight: 14.53 KDa
Source organism: Kluyveromyces lactis NRRL Y-1140
UniProt:
  • Canonical: P27069 (Residues: 1-137; Coverage: 100%)
Gene names: CRY1, KLLA0B07623g, RPS14
Pfam: Ribosomal protein S11
InterPro:

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Chain: R
Length: 136 amino acids
Theoretical weight: 15.72 KDa
Source organism: Kluyveromyces lactis NRRL Y-1140
UniProt:
  • Canonical: Q6CWU3 (Residues: 1-136; Coverage: 100%)
Gene name: KLLA0_B01474g
Pfam: Ribosomal S17
InterPro:

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Chain: V
Length: 87 amino acids
Theoretical weight: 9.8 KDa
Source organism: Kluyveromyces lactis NRRL Y-1140
UniProt:
  • Canonical: Q6CXT6 (Residues: 1-87; Coverage: 100%)
Gene names: KLLA0A05700g, RPS21
Pfam: Ribosomal protein S21e
InterPro:

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Chain: W
Length: 130 amino acids
Theoretical weight: 14.65 KDa
Source organism: Kluyveromyces lactis NRRL Y-1140
UniProt:
  • Canonical: Q6CW21 (Residues: 1-130; Coverage: 100%)
Gene names: KLLA0B07601g, RPS22
Pfam: Ribosomal protein S8
InterPro:

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Chain: X
Length: 145 amino acids
Theoretical weight: 16.05 KDa
Source organism: Kluyveromyces lactis NRRL Y-1140
UniProt:
  • Canonical: F2Z602 (Residues: 1-145; Coverage: 100%)
Gene name: KLLA0_B11231g
Pfam: Ribosomal protein S12/S23
InterPro:

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Chain: Y
Length: 135 amino acids
Theoretical weight: 15.19 KDa
Source organism: Kluyveromyces lactis NRRL Y-1140
UniProt:
  • Canonical: Q6CU44 (Residues: 1-135; Coverage: 100%)
Gene name: KLLA0_C07755g
Pfam: Ribosomal protein S24e
InterPro:

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Chain: Z
Length: 108 amino acids
Theoretical weight: 12 KDa
Source organism: Kluyveromyces lactis NRRL Y-1140
UniProt:
  • Canonical: Q6CW78 (Residues: 1-108; Coverage: 100%)
Gene name: KLLA0_B06182g
Pfam: S25 ribosomal protein
InterPro: Small ribosomal subunit protein eS25

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Chain: a
Length: 119 amino acids
Theoretical weight: 13.54 KDa
Source organism: Kluyveromyces lactis NRRL Y-1140
UniProt:
  • Canonical: Q6CS01 (Residues: 1-119; Coverage: 100%)
Gene name: KLLA0_D05115g
Pfam: Ribosomal protein S26e
InterPro:

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Chain: b
Length: 82 amino acids
Theoretical weight: 8.88 KDa
Source organism: Kluyveromyces lactis NRRL Y-1140
UniProt:
  • Canonical: Q6CNL2 (Residues: 1-82; Coverage: 100%)
Gene name: KLLA0_E11661g
Pfam: Ribosomal protein S27
InterPro:

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Chain: c
Length: 67 amino acids
Theoretical weight: 7.55 KDa
Source organism: Kluyveromyces lactis NRRL Y-1140
UniProt:
  • Canonical: P33285 (Residues: 1-67; Coverage: 100%)
Gene names: KLLA0F20383g, RPS28
Pfam: Ribosomal protein S28e
InterPro:

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Chain: e
Length: 63 amino acids
Theoretical weight: 7.14 KDa
Source organism: Kluyveromyces lactis NRRL Y-1140
UniProt:
  • Canonical: Q6CUH5 (Residues: 1-63; Coverage: 100%)
Gene name: KLLA0_C04809g
Pfam: Ribosomal protein S30
InterPro: Small ribosomal subunit protein eS30

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Chain: h
Length: 25 amino acids
Theoretical weight: 3.35 KDa
Source organism: Kluyveromyces lactis NRRL Y-1140
UniProt:
  • Canonical: P0CX86 (Residues: 1-25; Coverage: 100%)
Gene names: D1290, RPL41A, RPL47A, YDL184C, YL41A
Pfam: Ribosomal protein L41
InterPro: Large ribosomal subunit protein eS32

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Chain: i
Length: 153 amino acids
Theoretical weight: 17.46 KDa
Source organism: Saccharomyces cerevisiae
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P38912 (Residues: 1-153; Coverage: 100%)
Gene names: TIF11, YM8156.02C, YMR260C
Pfam: Translation initiation factor 1A / IF-1
InterPro:

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Chain: l
Length: 285 amino acids
Theoretical weight: 31.63 KDa
Source organism: Saccharomyces cerevisiae
Expression system: Saccharomyces cerevisiae
UniProt:
  • Canonical: P09064 (Residues: 1-285; Coverage: 100%)
Gene names: SUI3, TIF212, YPL237W
Pfam: Domain found in IF2B/IF5
InterPro:

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Chain: m
Length: 405 amino acids
Theoretical weight: 45.32 KDa
Source organism: Saccharomyces cerevisiae
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P38431 (Residues: 1-405; Coverage: 100%)
Gene names: TIF5, YP3085.05, YPR041W
Pfam:
InterPro:

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Chain: o
Length: 964 amino acids
Theoretical weight: 110.52 KDa
Source organism: Saccharomyces cerevisiae
Expression system: Saccharomyces cerevisiae
UniProt:
  • Canonical: P38249 (Residues: 1-964; Coverage: 100%)
Gene names: RPG1, TIF32, YBR0734, YBR079C
Pfam: eIF3a, PCI domain, TPR-like region
InterPro:

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Chain: q
Length: 812 amino acids
Theoretical weight: 86.54 KDa
Source organism: Saccharomyces cerevisiae
Expression system: Saccharomyces cerevisiae
UniProt:
  • Canonical: P32497 (Residues: 251-812; Coverage: 69%)
Gene names: NIP1, YM9924.01C, YM9952.11C, YMR309C
Pfam:
InterPro:

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Chain: s
Length: 347 amino acids
Theoretical weight: 38.8 KDa
Source organism: Saccharomyces cerevisiae
Expression system: Saccharomyces cerevisiae
UniProt:
  • Canonical: A6ZMK5 (Residues: 1-347; Coverage: 100%)
Gene names: SCY_4321, TIF34
Pfam: WD domain, G-beta repeat
InterPro:

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Name: tRNAi
Representative chains: 1
Length: 76 nucleotides
Theoretical weight: 24.8 KDa
Rfam: tRNA

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Name: 18S Ribosomal RNA
Representative chains: 2
Length: 1798 nucleotides
Theoretical weight: 579.45 KDa
Rfam: Eukaryotic small subunit ribosomal RNA

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Name: mRNA (31-MER)
Representative chains: 3
Length: 49 nucleotides
Theoretical weight: 15.34 KDa

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