Structure analysis

Structure of a spliceosome remodeled for exon ligation

Electron Microscopy
4.17Å resolution
Source organism: Saccharomyces cerevisiae
Assembly composition:
hetero 46-mer (preferred)
Entry contents: 30 distinct polypeptide molecules
6 distinct RNA molecules

Assemblies

Assembly 1 (preferred)
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Multimeric state: hetero 46-mer
Accessible surface area: 347767.41 Å2
Buried surface area: 159253.58 Å2
Dissociation area: 0 Å2
Dissociation energy (ΔGdiss): 0 kcal/mol
Dissociation entropy (TΔSdiss): 0 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-150217

Macromolecules

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Chain: H
Length: 577 amino acids
Theoretical weight: 67.39 KDa
Source organism: Saccharomyces cerevisiae
UniProt:
  • Canonical: P53333 (Residues: 1-577; Coverage: 100%)
Gene names: CWC22, YGR278W
Pfam: MA3 domain
InterPro:

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Chain: K
Length: 379 amino acids
Theoretical weight: 42.55 KDa
Source organism: Saccharomyces cerevisiae
UniProt:
  • Canonical: P28004 (Residues: 1-379; Coverage: 100%)
Gene names: FUN20, PRP45, YAL032C
Pfam: SKIP/SNW domain
InterPro:

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Chain: L
Length: 157 amino acids
Theoretical weight: 18.48 KDa
Source organism: Saccharomyces cerevisiae
UniProt:
  • Canonical: P25337 (Residues: 1-157; Coverage: 100%)
Gene names: BUD31, CWC14, YCR063W, YCR63W, YCR903
Pfam: Pre-mRNA-splicing factor BUD31
InterPro:

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Chain: N
Length: 364 amino acids
Theoretical weight: 40.99 KDa
Source organism: Saccharomyces cerevisiae
UniProt:
  • Canonical: P38241 (Residues: 1-364; Coverage: 100%)
Gene names: ECM2, SLT11, YBR0614, YBR065C
Pfam: STL11, N-terminal
InterPro:

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Chain: P
Length: 175 amino acids
Theoretical weight: 19.98 KDa
Source organism: Saccharomyces cerevisiae
UniProt:
  • Canonical: Q03772 (Residues: 1-175; Coverage: 100%)
Gene names: CWC15, YD8358.17, YDR163W
Pfam: Cwf15/Cwc15 cell cycle control protein
InterPro: Pre-mRNA-splicing factor Cwf15/Cwc15

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Chain: R
Length: 135 amino acids
Theoretical weight: 15.79 KDa
Source organism: Saccharomyces cerevisiae
UniProt:
  • Canonical: Q03375 (Residues: 1-135; Coverage: 100%)
Gene names: CWC21, YDR482C
Pfam: cwf21 domain
InterPro: mRNA splicing factor Cwf21 domain

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Chain: S
Length: 687 amino acids
Theoretical weight: 82.56 KDa
Source organism: Saccharomyces cerevisiae
UniProt:
  • Canonical: Q12309 (Residues: 1-687; Coverage: 100%)
Gene names: CLF1, L2952, NTC77, SYF3, YLR117C
Pfam: Suppressor of forked protein (Suf)
InterPro:

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Chain: T
Length: 877 amino acids
Theoretical weight: 101.88 KDa
Source organism: Saccharomyces cerevisiae
UniProt:
  • Canonical: Q04048 (Residues: 1-859; Coverage: 100%)
Gene names: NTC90, SYF1, YDR416W
Pfam: Suppressor of forked protein (Suf)
InterPro:

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Chain: a
Length: 251 amino acids
Theoretical weight: 28.41 KDa
Source organism: Saccharomyces cerevisiae
UniProt:
  • Canonical: P33411 (Residues: 1-251; Coverage: 100%)
Gene names: PRP18, YGR006W
Pfam: Prp18 domain
InterPro:

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Chain: c
Length: 382 amino acids
Theoretical weight: 44.72 KDa
Source organism: Saccharomyces cerevisiae
UniProt:
  • Canonical: Q02775 (Residues: 1-382; Coverage: 100%)
Gene names: D4483, SLT17, SLU7, YDR088C
Pfam: Pre-mRNA splicing Prp18-interacting factor
InterPro:

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Chain: o
Length: 455 amino acids
Theoretical weight: 52.13 KDa
Source organism: Saccharomyces cerevisiae
UniProt:
  • Canonical: P40968 (Residues: 1-455; Coverage: 100%)
Gene names: CDC40, D9481.11, PRP17, SLU4, XRS2, YDR364C
Pfam: WD domain, G-beta repeat
InterPro:

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Chain: X
Length: 68 amino acids
Theoretical weight: 5.81 KDa
Source organism: Saccharomyces cerevisiae

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Chain: y
Length: 215 amino acids
Theoretical weight: 24.85 KDa
Source organism: Saccharomyces cerevisiae
UniProt:
  • Canonical: P53277 (Residues: 1-215; Coverage: 100%)
Gene names: NTC31, SYF2, YGR129W
Pfam: SYF2 splicing factor
InterPro: mRNA splicing factor SYF2

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Chains: b, k
Length: 196 amino acids
Theoretical weight: 22.43 KDa
Source organism: Saccharomyces cerevisiae
UniProt:
  • Canonical: P40018 (Residues: 1-196; Coverage: 100%)
Gene names: SMB1, YER029C
Pfam: LSM domain
InterPro:

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Chains: d, n
Length: 101 amino acids
Theoretical weight: 11.24 KDa
Source organism: Saccharomyces cerevisiae
UniProt:
  • Canonical: P43321 (Residues: 1-101; Coverage: 100%)
Gene names: L9634.6, SMD3, YLR147C
Pfam: LSM domain
InterPro:

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Chains: e, p
Length: 94 amino acids
Theoretical weight: 10.39 KDa
Source organism: Saccharomyces cerevisiae
UniProt:
  • Canonical: Q12330 (Residues: 1-94; Coverage: 100%)
Gene names: SME1, YOR159C
Pfam: LSM domain
InterPro:

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Chains: f, q
Length: 86 amino acids
Theoretical weight: 9.67 KDa
Source organism: Saccharomyces cerevisiae
UniProt:
  • Canonical: P54999 (Residues: 1-86; Coverage: 100%)
Gene names: P9705.4, SMX3, YPR182W
Pfam: LSM domain
InterPro:

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Chains: g, r
Length: 77 amino acids
Theoretical weight: 8.49 KDa
Source organism: Saccharomyces cerevisiae
UniProt:
  • Canonical: P40204 (Residues: 1-77; Coverage: 100%)
Gene names: SMX2, SNP2, YFL017Bw, YFL017W-A
Pfam: LSM domain
InterPro:

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Chains: h, l
Length: 146 amino acids
Theoretical weight: 16.3 KDa
Source organism: Saccharomyces cerevisiae
UniProt:
  • Canonical: Q02260 (Residues: 1-146; Coverage: 100%)
Gene names: SMD1, YGR074W
Pfam: LSM domain
InterPro:

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Chains: j, m
Length: 110 amino acids
Theoretical weight: 12.88 KDa
Source organism: Saccharomyces cerevisiae
UniProt:
  • Canonical: Q06217 (Residues: 1-110; Coverage: 100%)
Gene names: L9328.5, SMD2, YLR275W
Pfam: LSM domain
InterPro:

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Chain: W
Length: 238 amino acids
Theoretical weight: 27.23 KDa
Source organism: Saccharomyces cerevisiae
UniProt:
  • Canonical: Q08963 (Residues: 1-238; Coverage: 100%)
Gene names: LEA1, YPL213W
Pfam: Leucine-rich repeat
InterPro:

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Chain: Y
Length: 111 amino acids
Theoretical weight: 12.85 KDa
Source organism: Saccharomyces cerevisiae
UniProt:
  • Canonical: P40567 (Residues: 1-111; Coverage: 100%)
Gene names: MSL1, YIB9W, YIR009W
Pfam: RNA recognition motif. (a.k.a. RRM, RBD, or RNP domain)
InterPro:

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Chain: s
Length: 175 amino acids
Theoretical weight: 20.74 KDa
Source organism: Saccharomyces cerevisiae
UniProt:
  • Canonical: Q06091 (Residues: 1-175; Coverage: 100%)
Gene names: NTC25, SNT309, YPR101W

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Name: Yeast UBC4 gene for ubiquitin-conjugating enzyme
Representative chains: I
Length: 95 nucleotides
Theoretical weight: 30.2 KDa

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Name: 5'-EXON OF UBC4 PRE-MRNA
Representative chains: E
Length: 20 nucleotides
Theoretical weight: 6.52 KDa

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Name: S.cerevisiae chromosome II reading frame ORF YBR230c
Representative chains: 2
Length: 1175 nucleotides
Theoretical weight: 376.27 KDa
Rfam: U2 spliceosomal RNA

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Name: Saccharomyces cerevisiae strain T.52_2H chromosome XII sequence
Representative chains: 6
Length: 112 nucleotides
Theoretical weight: 35.88 KDa
Rfam: U6 spliceosomal RNA

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Name: Saccharomyces cerevisiae strain WI_C_MBSP_4 chromosome VII sequence
Representative chains: 5
Length: 179 nucleotides
Theoretical weight: 57.44 KDa
Rfam: U5 spliceosomal RNA

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Name: 3'-EXON OF UBC4 PRE-MRNA, BOUND BY PRP22 HELICASE
Representative chains: 3
Length: 3 nucleotides
Theoretical weight: 874 Da

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