1B6B Transferase date Jan 13, 1999
title Melatonin Biosynthesis: The Structure Of Serotonin N- Acetyltransferase At 2.5 A Resolution Suggests A Catalytic Mechanism
authors A.B.Hickman, D.C.Klein, F.Dyda
compound source
Molecule: Protein (Arylalkylamine N-Acetyltransferase)
Chain: A, B
Engineered: Yes
Organism_scientific: Ovis Aries
Organism_common: Sheep
Organism_taxid: 9940
Expression_system: Escherichia Coli
Expression_system_taxid: 562
symmetry Space Group: P 61
R_factor 0.217 R_Free 0.282
length a length b length c angle alpha angle beta angle gamma
56.610 56.610 207.750 90.00 90.00 120.00
method X-Ray Diffractionresolution 2.50 Å
enzyme Transferase E.C. BRENDA
related structures by homologous chain: 1IB1, 1KUY
A, B

Primary referenceMelatonin biosynthesis: the structure of serotonin N-acetyltransferase at 2.5 A resolution suggests a catalytic mechanism., Hickman AB, Klein DC, Dyda F, Mol Cell 1999 Jan;3(1):23-32. PMID:10024876
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (57 Kb) [Save to disk]
  • Biological Unit Coordinates (1b6b.pdb1.gz) 29 Kb
  • Biological Unit Coordinates (1b6b.pdb2.gz) 26 Kb
  • CSU: Contacts of Structural Units for 1B6B
  • Likely Quarternary Molecular Structure file(s) for 1B6B
  • Structure Factors (94 Kb)
  • Retrieve 1B6B in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1B6B from S2C, [Save to disk]
  • Re-refined 1b6b structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1B6B 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.
  • Visual 3D analysis of 1B6B
  • Cartoon representation from PDB Cartoon
  • 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
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 1B6B, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1b6ba_, region A [Jmol] [rasmolscript] [script source]
        - Domain d1b6bb_, region B [Jmol] [rasmolscript] [script source]
  • Fold representative 1b6b 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: [1b6b_B] [1b6b_A] [1b6b]
  • SWISS-PROT database: [Q29495]
  • Domain organization of [SNAT_SHEEP] by SWISSPFAM
  • Other resources with information on 1B6B
  • Community annotation for 1B6B at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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