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- PDB-3app: STRUCTURE AND REFINEMENT OF PENICILLOPEPSIN AT 1.8 ANGSTROMS RESO... -
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Open data
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Basic information
Entry | Database: PDB / ID: 3app | |||||||||
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Title | STRUCTURE AND REFINEMENT OF PENICILLOPEPSIN AT 1.8 ANGSTROMS RESOLUTION | |||||||||
![]() | PENICILLOPEPSIN | |||||||||
![]() | HYDROLASE (ACID PROTEINASE) | |||||||||
Function / homology | ![]() penicillopepsin / aspartic-type endopeptidase activity / proteolysis / extracellular region Similarity search - Function | |||||||||
Biological species | ![]() | |||||||||
Method | ![]() | |||||||||
![]() | Sielecki, A.R. / James, M.N.G. | |||||||||
![]() | ![]() Title: Structure and refinement of penicillopepsin at 1.8 A resolution. Authors: James, M.N. / Sielecki, A.R. #1: ![]() Title: Aspartic Proteinases and Their Catalytic Pathway Authors: James, M.N.G. / Sielecki, A.R. #2: ![]() Title: Stereochemical Analysis of Peptide Bond Hydrolysis Catalyzed by the Aspartic Proteinase Penicillopepsin Authors: James, M.N.G. / Sielecki, A.R. #3: ![]() Title: Conformational Flexibility in the Active Sites of Aspartyl Proteinases Revealed by a Pepstatin Fragment Binding to Penicillopepsin Authors: James, M.N.G. / Sielecki, A. / Salituro, F. / Rich, D.H. / Hofmann, T. #4: ![]() Year: 1981 Title: The Tertiary Structure of Penicillopepsin. Towards a Catalytic Mechanism for Acid Proteases Authors: James, M.N.G. / Hsu, I-N. / Hofmann, T. / Sielecki, A.R. #5: ![]() Title: An X-Ray Crystallographic Approach to Enzyme Structure and Function Authors: James, M.N.G. #6: ![]() Title: Structural Evidence for Gene Duplication in the Evolution of the Acid Proteases Authors: Tang, J. / James, M.N.G. / Hsu, I.N. / Jenkins, J.A. / Blundell, T.L. #7: ![]() Title: Mechanism of Acid Protease Catalysis Based on the Crystal Structure of Penicillopepsin Authors: James, M.N.G. / Hsu, I.-N. / Delbaere, L.T.J. #8: ![]() Title: Penicillopepsin from Penicillium Janthinellum Crystal Structure at 2.8 Angstroms and Sequence Homology with Porcine Pepsin Authors: Hsu, I.-N. / Delbaere, L.T.J. / James, M.N.G. / Hofmann, T. #9: ![]() Title: Penicillopepsin. 2.8 Angstroms Structure, Active Site Conformation and Mechanistic Implications Authors: Hsu, I-N. / Delbaere, L.T.J. / James, M.N.G. / Hofmann, T. #10: ![]() Title: The Crystal Structure of Penicillopepsin at 6 Angstroms Resolution Authors: Hsu, I-N. / Hofmann, T. / Nyburg, S.C. / James, M.N.G. | |||||||||
History |
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Remark 650 | HELIX THE HYDROGEN-BONDING PATTERN AND THE VALUES OF THE PHI, PSI ANGLES WERE USED TO IDENTIFY THE ...HELIX THE HYDROGEN-BONDING PATTERN AND THE VALUES OF THE PHI, PSI ANGLES WERE USED TO IDENTIFY THE SEVERAL SHORT SEGMENTS OF ALPHA-HELICAL CONFORMATION. THERE ARE SIX ALPHA-HELICES, RANGING IN LENGTH FROM 1 TO 2.5 TURNS. FOUR OF THEM HAVE ASSOCIATED 3/10 HELICES INITIATING AND/OR TERMINATING THEM. THE TWO SINGLE TURNS OF ALPHA-HELIX, PRO 59 - GLY 63, ASP 239 - GLY 243, ARE IRREGULAR. THEIR ASSIGNMENT AS ALPHA-HELICAL WAS MADE ON THE BASIS OF GOOD 5-1 HYDROGEN BONDING. THE SPECIFICS ON 3/10 HELICES ARE AS FOLLOWS H1. ASN 58 - ALA 61 3/10 HELIX TYPE III H2. SER 109 - PHE 112 3/10 HELIX TYPE III PHE 112 - ASP 115 3/10 HELIX TYPE III H3. VAL 144 - SER 147 3/10 HELIX TYPE III LYS 145 - LEU 148 3/10 HELIX TYPE I H4. ASP 222 - VAL 225 3/10 HELIX TYPE III TYR 229 - GLN 232 3/10 HELIX TYPE III TYR 230 - VAL 233 3/10 HELIX TYPE I H6. GLY 299 - PHE 302 3/10 HELIX TYPE III PHE 302 - SER 305 3/10 HELIX TYPE III LEU 303 - GLN 306 3/10 HELIX TYPE I |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 81.7 KB | Display | ![]() |
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PDB format | ![]() | 57.8 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 364.9 KB | Display | ![]() |
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Full document | ![]() | 395.1 KB | Display | |
Data in XML | ![]() | 13.3 KB | Display | |
Data in CIF | ![]() | 20.1 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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Unit cell |
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Atom site foot note | 1: THE REGION FROM SER 277 TO SER 281 IS POORLY ORDERED IN THE ELECTRON DENSITY MAP AT CYCLE 86 (SEE FIGURE 6C IN THE PAPER CITED AS REFERENCE 1 ABOVE). 2: RESIDUES 134 AND 315 ARE CIS-PROLINES. |
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Components
#1: Protein | Mass: 33468.809 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() |
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#2: Water | ChemComp-HOH / |
Has protein modification | Y |
-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 2.01 Å3/Da / Density % sol: 38.67 % | ||||||||||||||||||||
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Crystal grow | *PLUS pH: 4.4 / Method: unknown | ||||||||||||||||||||
Components of the solutions | *PLUS
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Processing
Software | Name: PROLSQ / Classification: refinement | ||||||||||||
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Refinement | Resolution: 1.8→8 Å / σ(I): 3 Details: THE REGION FROM SER 277 TO SER 281 IS POORLY ORDERED IN THE ELECTRON DENSITY
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Refinement step | Cycle: LAST / Resolution: 1.8→8 Å
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Software | *PLUS Name: PROLSQ / Classification: refinement | ||||||||||||
Refinement | *PLUS Rfactor obs: 0.126 | ||||||||||||
Solvent computation | *PLUS | ||||||||||||
Displacement parameters | *PLUS |