1AAP	Proteinase Inhibitor (Trypsin)	date	Sep 14, 1990
title	X-Ray Crystal Structure Of The Protease Inhibitor Domain Of Alzheimer'S Amyloid Beta-Protein Precursor
authors	T.R.Hynes, M.Randal, L.A.Kennedy, C.Eigenbrot, A.A.Kossiakoff
compound		source
Molecule: Alzheimer'S Disease Amyloid A4 Protein Chain: A, B Fragment: Inhibitor Domain Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: P 21 21 21	R_factor R_Free NULL
crystal cell	length a length b length c angle alpha angle beta angle gamma 35.600 38.900 73.600 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.50 Å
related structures	by homologous chain: 1TAW
Primary reference	X-ray crystal structure of the protease inhibitor domain of Alzheimer's amyloid beta-protein precursor., Hynes TR, Randal M, Kennedy LA, Eigenbrot C, Kossiakoff AA, Biochemistry 1990 Oct 30;29(43):10018-22. PMID:2125487

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (23 Kb) [Save to disk] Biological Unit Coordinates (1aap.pdb1.gz) 20 Kb CSU: Contacts of Structural Units for 1AAP Likely Quarternary Molecular Structure file(s) for 1AAP Retrieve 1AAP in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1AAP from S2C, [Save to disk]

View 1AAP in 3D

Proteopedia, because life has more than 2D. On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure. On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz. On AstexViewer, from MSD-EBI (viewer documentation). On RasMol (Install RasMol freeware) Here's help on how to use RasMol.

Visual 3D analysis of 1AAP

Cartoon representation from PDB Cartoon Ramachandran plot from PDBSum

Structure-derived information

Conformational Epitope Prediction for 1AAP 1AAPA 1AAPB from the CEP Server. Dipole moment, from Dipole Server at Weizmann Institute Crystal Contacts, from CryCo at Weizmann Institute 3D motif for 1AAP, from MSDmotif at EBI Genome occurence of 1AAP's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1aapa_, region A [Jmol] [rasmolscript] [script source]     - Domain d1aapb_, region B [Jmol] [rasmolscript] [script source] Fold representative 1aap from FSSP and Dali (Families of Structurally Similar Proteins) Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH Summaries and structural analyses of PDB data files from PDBSum Identification of Protein Pockets & Cavities at CASTp

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1aap_A] [1aap_B] SWISS-PROT database: [P05067] Belongs to the amyloid -protein peptide (app) family according to TCDB. Domain organization of [A4_HUMAN] by SWISSPFAM Domain found in 1AAP: [KU ] by SMART Alignments of the sequence of 1AAP with the sequences similar proteins can be viewed for 1AAP's classification [A4_HUMAN] at ProtoMap. Click on "Neighbors List", then on the "See Alignments" button below the list. A sequence distance tree ("phylogenetic tree") can be viewed for 1ACL's classification [A4_HUMAN] at ProtoMap. Click on the Cluster number.

Other resources with information on 1AAP

Community annotation for 1AAP at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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