1QMH	Ligase	date	Sep 28, 1999
title	Crystal Structure Of Rna 3'-Terminal Phosphate Cyclase, An U Enzyme With Unusual Topology
authors	G.J.Palm, E.Billy, W.Filipowicz, A.Wlodawer
compound		source
Molecule: Rna 3'-Terminal Phosphate Cyclase Chain: A, B Synonym: Rna Cyclase, Rna-3'-Phosphate Cyclase Ec: 6.5.1.4 Engineered: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 83333 Strain: K-12 Cellular_location: Cytoplasm Gene: Rtca Expression_system: Escherichia Coli Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_cellular_location: Cytoplasm Expression_system_vector_type: Plasmid Expression_system_vector: Pet-11d Expression_system_plasmid: Pet-11d_ecoli Cyclase Expression_system_gene: Rtca
symmetry	Space Group: P 21 21 2	R_factor 0.204 R_Free 0.276
crystal cell	length a length b length c angle alpha angle beta angle gamma 125.800 133.500 51.000 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.10 Å
ligand	CIT, DTO	enzyme	Ligase E.C.6.5.1.4 BRENDA
related structures	by homologous chain: 1QMI
Gene Ontology	Chain Function Process Component A, B
Primary reference	Crystal structure of RNA 3'-terminal phosphate cyclase, a ubiquitous enzyme with unusual topology., Palm GJ, Billy E, Filipowicz W, Wlodawer A, Structure Fold Des 2000 Jan 15;8(1):13-23. PMID:10673421

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (114 Kb) [Save to disk] Biological Unit Coordinates (1qmh.pdb1.gz) 108 Kb LPC: Ligand-Protein Contacts for 1QMH CSU: Contacts of Structural Units for 1QMH Likely Quarternary Molecular Structure file(s) for 1QMH Structure Factors (307 Kb) Retrieve 1QMH in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1QMH from S2C, [Save to disk] Re-refined 1qmh structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1QMH 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 1QMH

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 1QMH, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1qmha1, region A:185-279 [Jmol] [rasmolscript] [script source]     - Domain d1qmha2, region A:5-184,A:280-338 [Jmol] [rasmolscript] [script source]     - Domain d1qmhb1, region B:185-279 [Jmol] [rasmolscript] [script source]     - Domain d1qmhb2, region B:5-184,B:280-339 [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: [1qmh_B] [1qmh] [1qmh_A] SWISS-PROT database: [P46849] Domain organization of [RTCA_ECOLI] by SWISSPFAM

Other resources with information on 1QMH

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

Movements, Movies and Images

Images from IMB Jena Image Library of Biological Macromolecules.

You may enter another PDB ID code

Go [Back], to the [PDB Lite page], to the [OCA Search page] or to the [PDB Home page]

---

OCA© by Jaime Prilusky, 1996-2014,2022 Bioinformatics Unit Weizmann Institute of Science

---