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Complex (transcription reg/peptide) PDB id
1gux
Jmol
Contents
Protein chains
177 a.a. *
141 a.a. *
Ligands
ASP-LEU-TYR-CYS-
TYR-GLU-GLN-LEU-
ASN
Waters ×388
* Residue conservation analysis
PDB id:
1gux
Name: Complex (transcription reg/peptide)
Title: Rb pocket bound to e7 lxcxe motif
Structure: Retinoblastoma protein. Chain: a. Fragment: pocket domain. Engineered: yes. Retinoblastoma protein. Chain: b. Fragment: pocket domain. Engineered: yes. Oncoprotein.
Source: Homo sapiens. Human. Organism_taxid: 9606. Cell_line: bl21. Expressed in: escherichia coli bl21(de3). Expression_system_taxid: 469008. Human papillomavirus. Organism_taxid: 10566. Strain: e7
Biol. unit: Trimer (from PQS)
Resolution:
1.85Å     R-factor:   0.218     R-free:   0.289
Authors: J.O.Lee,A.A.Russo,N.P.Pavletich
Key ref:
J.O.Lee et al. (1998). Structure of the retinoblastoma tumour-suppressor pocket domain bound to a peptide from HPV E7. Nature, 391, 859-865. PubMed id: 9495340 DOI: 10.1038/36038
Date:
15-Nov-97     Release date:   02-Dec-98    
PROCHECK
Go to PROCHECK summary
 Headers
 References

Protein chain
Pfam   ArchSchema ?
P06400  (RB_HUMAN) -  Retinoblastoma-associated protein
Seq:
Struc:
 
Seq:
Struc:
928 a.a.
177 a.a.
Protein chain
Pfam   ArchSchema ?
P06400  (RB_HUMAN) -  Retinoblastoma-associated protein
Seq:
Struc:
 
Seq:
Struc:
928 a.a.
141 a.a.
Key:    PfamA domain  Secondary structure  CATH domain

 

 
DOI no: 10.1038/36038 Nature 391:859-865 (1998)
PubMed id: 9495340  
 
 
Structure of the retinoblastoma tumour-suppressor pocket domain bound to a peptide from HPV E7.
J.O.Lee, A.A.Russo, N.P.Pavletich.
 
  ABSTRACT  
 
The pocket domain of the retinoblastoma (Rb) tumour suppressor is central to Rb function, and is frequently inactivated by the binding of the human papilloma virus E7 oncoprotein in cervical cancer. The crystal structure of the Rb pocket bound to a nine-residue E7 peptide containing the LxCxE motif, shared by other Rb-binding viral and cellular proteins, shows that the LxCxE peptide binds a highly conserved groove on the B-box portion of the pocket; the A-box portion appears to be required for the stable folding of the B box. Also highly conserved is the extensive A-B interface, suggesting that it may be an additional protein-binding site. The A and B boxes each contain the cyclin-fold structural motif, with the LxCxE-binding site on the B-box cyclin fold being similar to a Cdk2-binding site of cyclin A and to a TBP-binding site of TFIIB.
 
  Selected figure(s)  
 
Figure 3.
Figure 3 The A-B interface is like a folded structural domain, and is highly conserved. a, Residues that form the hydrophobic core of the interface. b, c, Two regions with notable hydrogen-bond networks involving both side-chain and backbone groups. Hydrogen bonds are indicated by yellow dotted lines. The importance of the interface is underscored by the presence of tumour-derived mutations that target residues either in the hydrophobic core or in the hydrogen-bond networks. d, The surface of the pocket is coloured according to residue identity across the Rb homologues of five species and the p107 and p130 family members (Fig. 2a). Dark green indicates identities and white non-conserved residues. This view highlights the striking conservation of residues that are on a surface patch about halfway around the A-B interface.
Figure 4.
Figure 4 The E7 LxCxE binds as an extended peptide onto a conserved groove of the B box. a, Hydrogen-bond interactions to peptide backbone groups and theGlu 26 side chain, indicated as red dotted lines, cover the length of the peptide. b, The E7 Leu 22, Cys 24 and Leu 28 side chains bind in small hydrophobic pockets. c, The surface of the B box is coloured according to residue identity as in Fig. 3d, highlighting the striking conservation of residues that make up the LxCxE binding site. d, The clustering of basic residues at the rim of the LxCxE binding site, a well-conserved feature, may facilitate the binding of viral oncogenes that often have a stretch of acidic residues following the LxCxE motif. Note the conserved clustering of acidic residues at the opposite side of the binding site.
 
  The above figures are reprinted by permission from Macmillan Publishers Ltd: Nature (1998, 391, 859-865) copyright 1998.  
  Figures were selected by the author.  

Literature references that cite this PDB file's key reference

  PubMed id Reference
21491492 E.R.Balog, J.R.Burke, G.L.Hura, and S.M.Rubin (2011).
Crystal structure of the unliganded retinoblastoma protein pocket domain.
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PDB code: 3pom
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E2f binding-deficient Rb1 protein suppresses prostate tumor progression in vivo.
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21143199 M.J.Cecchini, and F.A.Dick (2011).
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21146412 N.E.Davey, G.Travé, and T.J.Gibson (2011).
How viruses hijack cell regulation.
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20871633 R.B.Delston, K.A.Matatall, Y.Sun, M.D.Onken, and J.W.Harbour (2011).
p38 phosphorylates Rb on Ser567 by a novel, cell cycle-independent mechanism that triggers Rb-Hdm2 interaction and apoptosis.
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20594292 E.O.Berge, S.Knappskog, S.Geisler, V.Staalesen, M.Pacal, A.L.Børresen-Dale, P.Puntervoll, J.R.Lillehaug, and P.E.Lønning (2010).
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20088881 L.B.Chemes, I.E.Sánchez, C.Smal, and G.de Prat-Gay (2010).
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20337599 R.Suryadinata, M.Sadowski, and B.Sarcevic (2010).
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A cancer derived mutation in the Retinoblastoma gene with a distinct defect for LXCXE dependent interactions.
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Cytotoxic copper(II) salicylaldehyde semicarbazone complexes: mode of action and proteomic analysis.
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Key elements of the retinoblastoma tumor suppressor pathway in Volvox carteri.
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Regulation of the retinoblastoma proteins by the human herpesviruses.
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Structural basis for subversion of cellular control mechanisms by the adenoviral E1A oncoprotein.
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PDB code: 2kje
19505649 J.Cheng, J.A.DeCaprio, M.M.Fluck, and B.S.Schaffhausen (2009).
Cellular transformation by Simian Virus 40 and Murine Polyoma Virus T antigens.
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19506017 S.M.Francis, J.Bergsied, C.E.Isaac, C.H.Coschi, A.L.Martens, C.V.Hojilla, S.Chakrabarti, G.E.Dimattia, R.Khoka, J.Y.Wang, and F.A.Dick (2009).
A functional connection between pRB and transforming growth factor beta in growth inhibition and mammary gland development.
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18628066 C.Sábado Alvarez (2008).
Molecular biology of retinoblastoma.
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18649911 D.Morandell, U.Rostek, V.Bouvard, B.Campo-Fernández, M.Fiedler, P.Jansen-Dürr, and W.Zwerschke (2008).
Human papillomavirus type 45 E7 is a transforming protein inducing retinoblastoma protein degradation and anchorage-independent cell cycle progression.
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18665226 J.Ahlander, X.B.Chen, and G.Bosco (2008).
The N-terminal domain of the Drosophila retinoblastoma protein Rbf1 interacts with ORC and associates with chromatin in an E2F independent manner.
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18677087 M.Nakamura, H.Saito, and T.Hibi (2008).
Advances in genomic research on hepatitis C virus with a useful tool, replicon system.
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18321970 N.J.Genovese, N.S.Banerjee, T.R.Broker, and L.T.Chow (2008).
Casein kinase II motif-dependent phosphorylation of human papillomavirus E7 protein promotes p130 degradation and S-phase induction in differentiated human keratinocytes.
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18385237 P.Pelka, J.N.Ablack, G.J.Fonseca, A.F.Yousef, and J.S.Mymryk (2008).
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17854503 F.A.Dick (2007).
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17292831 F.G.Whitby, and C.P.Hill (2007).
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17173068 H.L.Borges, I.C.Hunton, and J.Y.Wang (2007).
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17616526 L.Kong, X.P.Yu, X.H.Bai, W.F.Zhang, Y.Zhang, W.M.Zhao, J.H.Jia, W.Tang, Y.B.Zhou, and C.J.Liu (2007).
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HPV-18 E7 conjugates to c-Myc and mediates its transcriptional activity.
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16936740 C.Giacinti, and A.Giordano (2006).
RB and cell cycle progression.
  Oncogene, 25, 5220-5227.  
16936755 G.De Falco, and A.Giordano (2006).
pRb2/p130: a new candidate for retinoblastoma tumor formation.
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16638975 J.W.Harbour (2006).
Eye cancer: unique insights into oncogenesis: the Cogan Lecture.
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16936752 L.Leoncini, C.Bellan, and G.De Falco (2006).
Retinoblastoma gene family expression in lymphoid tissues.
  Oncogene, 25, 5309-5314.  
16384614 M.Fiedler, B.Campo-Fernández, A.Laich, B.Moser, P.Stöckl, P.Jansen-Dürr, and W.Zwerschke (2006).
Purification and characterisation of the E7 oncoproteins of the high-risk human papillomavirus types 16 and 18.
  J Virol Methods, 134, 30-35.  
16636661 O.Ohlenschläger, T.Seiboth, H.Zengerling, L.Briese, A.Marchanka, R.Ramachandran, M.Baum, M.Korbas, W.Meyer-Klaucke, M.Dürst, and M.Görlach (2006).
Solution structure of the partially folded high-risk human papilloma virus 45 oncoprotein E7.
  Oncogene, 25, 5953-5959.
PDB codes: 2ewl 2f8b
17018593 S.Balsitis, F.Dick, N.Dyson, and P.F.Lambert (2006).
Critical roles for non-pRb targets of human papillomavirus type 16 E7 in cervical carcinogenesis.
  Cancer Res, 66, 9393-9400.  
16501608 T.Ueno, K.Sasaki, S.Yoshida, N.Kajitani, A.Satsuka, H.Nakamura, and H.Sakai (2006).
Molecular mechanisms of hyperplasia induction by human papillomavirus E7.
  Oncogene, 25, 4155-4164.  
16936750 V.Caracciolo, K.Reiss, K.Khalili, G.De Falco, and A.Giordano (2006).
Role of the interaction between large T antigen and Rb family members in the oncogenicity of JC virus.
  Oncogene, 25, 5294-5301.  
16249186 X.Liu, A.Clements, K.Zhao, and R.Marmorstein (2006).
Structure of the human Papillomavirus E7 oncoprotein and its mechanism for inactivation of the retinoblastoma tumor suppressor.
  J Biol Chem, 281, 578-586.
PDB code: 2b9d
15806172 A.Ledl, D.Schmidt, and S.Müller (2005).
Viral oncoproteins E1A and E7 and cellular LxCxE proteins repress SUMO modification of the retinoblastoma tumor suppressor.
  Oncogene, 24, 3810-3818.  
15659578 B.St-Pierre, X.Liu, L.C.Kha, X.Zhu, O.Ryan, Z.Jiang, and E.Zacksenhaus (2005).
Conserved and specific functions of mammalian ssu72.
  Nucleic Acids Res, 33, 464-477.  
16269091 J.R.Valverde, J.Alonso, I.Palacios, and A.Pestaña (2005).
RB1 gene mutation up-date, a meta-analysis based on 932 reported mutations available in a searchable database.
  BMC Genet, 6, 53.  
16118215 M.Singh, M.Krajewski, A.Mikolajka, and T.A.Holak (2005).
Molecular determinants for the complex formation between the retinoblastoma protein and LXCXE sequences.
  J Biol Chem, 280, 37868-37876.  
15986142 R.Halaban (2005).
Rb/E2F: a two-edged sword in the melanocytic system.
  Cancer Metastasis Rev, 24, 339-356.  
15660127 R.Honda, E.D.Lowe, E.Dubinina, V.Skamnaki, A.Cook, N.R.Brown, and L.N.Johnson (2005).
The structure of cyclin E1/CDK2: implications for CDK2 activation and CDK2-independent roles.
  EMBO J, 24, 452-463.
PDB code: 1w98
16103190 S.Balsitis, F.Dick, D.Lee, L.Farrell, R.K.Hyde, A.E.Griep, N.Dyson, and P.F.Lambert (2005).
Examination of the pRb-dependent and pRb-independent functions of E7 in vivo.
  J Virol, 79, 11392-11402.  
16360038 S.M.Rubin, A.L.Gall, N.Zheng, and N.P.Pavletich (2005).
Structure of the Rb C-terminal domain bound to E2F1-DP1: a mechanism for phosphorylation-induced E2F release.
  Cell, 123, 1093-1106.
PDB code: 2aze
16196090 S.O.Jung, H.S.Ro, B.H.Kho, Y.B.Shin, M.G.Kim, and B.H.Chung (2005).
Surface plasmon resonance imaging-based protein arrays for high-throughput screening of protein-protein interaction inhibitors.
  Proteomics, 5, 4427-4431.  
16332962 T.Munakata, M.Nakamura, Y.Liang, K.Li, and S.M.Lemon (2005).
Down-regulation of the retinoblastoma tumor suppressor by the hepatitis C virus NS5B RNA-dependent RNA polymerase.
  Proc Natl Acad Sci U S A, 102, 18159-18164.  
14997555 B.A.Manjasetty, C.Quedenau, V.Sievert, K.Büssow, F.Niesen, H.Delbrück, and U.Heinemann (2004).
X-ray structure of human gankyrin, the product of a gene linked to hepatocellular carcinoma.
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PDB code: 1qym
14583612 B.Padmanabhan, N.Adachi, K.Kataoka, and M.Horikoshi (2004).
Crystal structure of the homolog of the oncoprotein gankyrin, an interactor of Rb and CDK4/6.
  J Biol Chem, 279, 1546-1552.
PDB code: 1ixv
15078963 G.Arguello-Astorga, L.Lopez-Ochoa, L.J.Kong, B.M.Orozco, S.B.Settlage, and L.Hanley-Bowdoin (2004).
A novel motif in geminivirus replication proteins interacts with the plant retinoblastoma-related protein.
  J Virol, 78, 4817-4826.  
15199152 H.A.Hirsch, G.W.Jawdekar, K.A.Lee, L.Gu, and R.W.Henry (2004).
Distinct mechanisms for repression of RNA polymerase III transcription by the retinoblastoma tumor suppressor protein.
  Mol Cell Biol, 24, 5989-5999.  
15139006 J.Alonso, I.Menéndez, A.López, H.Frayle, N.Ruisánchez, and A.Pestaña (2004).
Two independent RB1-inactivating mutations in peripheral blood DNA of a hereditary retinoblastoma patient.
  Genes Chromosomes Cancer, 40, 271-275.  
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Dimerization of CtIP, a BRCA1- and CtBP-interacting protein, is mediated by an N-terminal coiled-coil motif.
  J Biol Chem, 279, 26932-26938.  
15169919 M.Wallace, and K.L.Ball (2004).
Docking-dependent regulation of the Rb tumor suppressor protein by Cdk4.
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14573599 S.Krzywda, A.M.Brzozowski, H.Higashitsuji, J.Fujita, R.Welchman, S.Dawson, R.J.Mayer, and A.J.Wilkinson (2004).
The crystal structure of gankyrin, an oncoprotein found in complexes with cyclin-dependent kinase 4, a 19 S proteasomal ATPase regulator, and the tumor suppressors Rb and p53.
  J Biol Chem, 279, 1541-1545.
PDB code: 1uoh
15016799 V.Pennaneach, V.Barbier, K.Regazzoni, R.Fotedar, and A.Fotedar (2004).
Rb inhibits E2F-1-induced cell death in a LXCXE-dependent manner by active repression.
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14583607 Y.W.Chen, M.D.Allen, D.B.Veprintsev, J.Löwe, and M.Bycroft (2004).
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  J Biol Chem, 279, 3758-3765.
PDB code: 1oa8
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Crystal structure of the retinoblastoma tumor suppressor protein bound to E2F and the molecular basis of its regulation.
  Proc Natl Acad Sci U S A, 100, 2363-2368.
PDB code: 1o9k
12646568 D.Ma, P.Zhou, and J.W.Harbour (2003).
Distinct mechanisms for regulating the tumor suppressor and antiapoptotic functions of Rb.
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14502556 D.W.Goodrich (2003).
How the other half lives, the amino-terminal domain of the retinoblastoma tumor suppressor protein.
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14517264 J.H.Jeon, K.H.Choi, S.Y.Cho, C.W.Kim, D.M.Shin, J.C.Kwon, K.Y.Song, S.C.Park, and I.G.Kim (2003).
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Clefts, grooves, and (small) pockets: the structure of the retinoblastoma tumor suppressor in complex with its cellular target E2F unveiled.
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Retinoblastoma protein-mediated apoptosis after gamma-irradiation.
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Structural basis for the recognition of the E2F transactivation domain by the retinoblastoma tumor suppressor.
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PDB code: 1n4m
12040123 C.S.Sullivan, and J.M.Pipas (2002).
T antigens of simian virus 40: molecular chaperones for viral replication and tumorigenesis.
  Microbiol Mol Biol Rev, 66, 179-202.  
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Three regions of the pRB pocket domain affect its inactivation by human papillomavirus E7 proteins.
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11889033 G.T.Kim, K.Shoda, T.Tsuge, K.H.Cho, H.Uchimiya, R.Yokoyama, K.Nishitani, and H.Tsukaya (2002).
The ANGUSTIFOLIA gene of Arabidopsis, a plant CtBP gene, regulates leaf-cell expansion, the arrangement of cortical microtubules in leaf cells and expression of a gene involved in cell-wall formation.
  EMBO J, 21, 1267-1279.  
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Tumor suppression by a severely truncated species of retinoblastoma protein.
  Mol Cell Biol, 22, 3103-3110.  
12459729 M.Classon, and E.Harlow (2002).
The retinoblastoma tumour suppressor in development and cancer.
  Nat Rev Cancer, 2, 910-917.  
  12225593 P.P.Claudio, T.Tonini, and A.Giordano (2002).
The retinoblastoma family: twins or distant cousins?
  Genome Biol, 3, reviews3012.  
11733528 S.Ansieau, and A.Leutz (2002).
The conserved Mynd domain of BS69 binds cellular and oncoviral proteins through a common PXLXP motif.
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12006580 T.Farkas, K.Hansen, K.Holm, J.Lukas, and J.Bartek (2002).
Distinct phosphorylation events regulate p130- and p107-mediated repression of E2F-4.
  J Biol Chem, 277, 26741-26752.  
12115720 T.Tonini, C.Hillson, and P.P.Claudio (2002).
Interview with the retinoblastoma family members: do they help each other?
  J Cell Physiol, 192, 138-150.  
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The B-domain lysine patch of pRB is required for binding to large T antigen and release of E2F by phosphorylation.
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PDB code: 1gh6
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Rb inhibits the intrinsic kinase activity of TATA-binding protein-associated factor TAFII250.
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Negative control elements of the cell cycle in human tumors.
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The most recent references are shown first. Citation data come partly from CiteXplore and partly from an automated harvesting procedure. Note that this is likely to be only a partial list as not all journals are covered by either method. However, we are continually building up the citation data so more and more references will be included with time. Where a reference describes a PDB structure, the PDB code is shown on the right.