1JXK	Hydrolase	date	Sep 07, 2001
title	Role Of Ethe Mobile Loop In The Mehanism Of Human Salivary A
authors	N.Ramasubbu, C.Ragunath, Z.Wang
compound		source
Molecule: Alpha-Amylase, Salivary Chain: A Fragment: Lacking The Loop Residues 306-310 Synonym: Salivary Alpha-Amyalse; 1,4-Alpha-D-Glucan Glucano Ec: 3.2.1.1 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Organ: Salivary Glands Expression_system: Spodoptera Frugiperda Expression_system_common: Fall Armyworm Expression_system_taxid: 7108
symmetry	Space Group: P 21 21 21	R_factor 0.173 R_Free 0.200
crystal cell	length a length b length c angle alpha angle beta angle gamma 52.900 75.737 134.554 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: 1U30, 1XCX
Gene Ontology	Chain Function Process Component A
Primary reference	Probing the role of a mobile loop in substrate binding and enzyme activity of human salivary amylase., Ramasubbu N, Ragunath C, Mishra PJ, J Mol Biol 2003 Jan 31;325(5):1061-76. PMID:12527308

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (88 Kb) [Save to disk] Biological Unit Coordinates (1jxk.pdb1.gz) 84 Kb LPC: Ligand-Protein Contacts for 1JXK CSU: Contacts of Structural Units for 1JXK Likely Quarternary Molecular Structure file(s) for 1JXK Structure Factors (323 Kb) Retrieve 1JXK in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1JXK from S2C, [Save to disk] Re-refined 1jxk structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1JXK in 3D

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Visual 3D analysis of 1JXK

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 1JXK, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1jxka2, region A:1-403 [Jmol] [rasmolscript] [script source]     - Domain d1jxka1, region A:404-491 [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: [1jxk] [1jxk_A] SWISS-PROT database: [P04745] Domain organization of [AMY1_HUMAN] by SWISSPFAM Domains found in 1JXK: [Aamy] [Aamy_C ] by SMART

Other resources with information on 1JXK

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

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