1KBB	Hydrolase	date	Nov 05, 2001
title	Mechanistic Analyses Of Catalysis In Human Pancreatic Alpha- Detailed Kinetic And Structural Studies Of Mutants Of Three Carboxylic Acids
authors	E.H.Rydberg, C.Li, R.Maurus, C.M.Overall, G.D.Brayer, S.G.Withers
compound		source
Molecule: Alpha-Amylase, Pancreatic Chain: A Synonym: 1,4-Alpha-D-Glucan Glucanohydrolase, Pancreatic Al Amylase; Ec: 3.2.1.1 Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Expression_system: Pichia Pastoris Expression_system_taxid: 4922
symmetry	Space Group: P 21 21 21	R_factor 0.172 R_Free 0.194
crystal cell	length a length b length c angle alpha angle beta angle gamma 52.920 74.770 136.940 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.90 Å
ligand	CA, CL, PCA	enzyme	Hydrolase E.C.3.2.1.1 BRENDA
related structures	by homologous chain: 1KBK, 1U30
Gene Ontology	Chain Function Process Component A
Primary reference	Mechanistic analyses of catalysis in human pancreatic alpha-amylase: detailed kinetic and structural studies of mutants of three conserved carboxylic acids., Rydberg EH, Li C, Maurus R, Overall CM, Brayer GD, Withers SG, Biochemistry 2002 Apr 2;41(13):4492-502. PMID:11914097

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (87 Kb) [Save to disk] Biological Unit Coordinates (1kbb.pdb1.gz) 81 Kb LPC: Ligand-Protein Contacts for 1KBB CSU: Contacts of Structural Units for 1KBB Likely Quarternary Molecular Structure file(s) for 1KBB Structure Factors (298 Kb) Retrieve 1KBB in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1KBB from S2C, [Save to disk] Re-refined 1kbb structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1KBB in 3D

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Visual 3D analysis of 1KBB

Ramachandran plot from PDBSum

Structure-derived information

Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1KBB, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1kbba2, region A:1-403 [Jmol] [rasmolscript] [script source]     - Domain d1kbba1, region A:404-496 [Jmol] [rasmolscript] [script source] 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: [1kbb] [1kbb_A] SWISS-PROT database: [P04746] Domain organization of [AMYP_HUMAN] by SWISSPFAM Domains found in 1KBB: [Aamy] [Aamy_C ] by SMART

Other resources with information on 1KBB

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

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