3IHL	Ligase	date	Jul 30, 2009
title	Human Ctps2 Crystal Structure
authors	M.Moche, M.I.Siponen, C.H.Arrowsmith, H.Berglund, C.Bountra, R.Co Edwards, S.Flodin, A.Flores, S.Graslund, M.Hammarstrom, A.Johans I.Johansson, T.Karlberg, T.Kotenyova, A.Kotzsch, T.Kragh Nielse T.Nyman, C.Persson, A.K.Roos, J.Sagemark, H.Schueler, P.Schutz, A.G.Thorsell, L.Tresaugues, S.Van Den Berg, J.Weigelt, M.Welin, M.Wisniewska, P.Nordlund, Structural Genomics Consortium (Sgc
compound		source
Molecule: Ctp Synthase 2 Chain: A, B Fragment: Resideus 1-275 Synonym: Utp--Ammonia Ligase 2, Ctp Synthetase 2 Ec: 6.3.4.2 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Ctps2 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21(De3)R3 Prare Expression_system_vector_type: Plasmid Expression_system_plasmid: Pnic-Ch2
symmetry	Space Group: P 62 2 2	R_factor 0.203 R_Free 0.232
crystal cell	length a length b length c angle alpha angle beta angle gamma 168.250 168.250 132.000 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.80 Å
ligand	ADP, PO4	enzyme	Ligase E.C.6.3.4.2 BRENDA

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (80 Kb) [Save to disk] Biological Unit Coordinates (3ihl.pdb1.gz) 146 Kb Biological Unit Coordinates (3ihl.pdb2.gz) 74 Kb Biological Unit Coordinates (3ihl.pdb3.gz) 76 Kb Biological Unit Coordinates (3ihl.pdb4.gz) 73 Kb LPC: Ligand-Protein Contacts for 3IHL CSU: Contacts of Structural Units for 3IHL Structure Factors (412 Kb) Retrieve 3IHL in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3IHL from S2C, [Save to disk] Re-refined 3ihl structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3IHL 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 3IHL

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 3IHL, from MSDmotif at EBI Fold representative 3ihl from FSSP and Dali (Families of Structurally Similar Proteins)

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3ihl_A] [3ihl_B] SWISS-PROT database: [Q9NRF8] Domain organization of [PYRG2_HUMAN] by SWISSPFAM Alignments of the sequence of 3IHL with the sequences similar proteins can be viewed for 3IHL's classification [PYRG2_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 [PYRG2_HUMAN] at ProtoMap. Click on the Cluster number.

Other resources with information on 3IHL

Community annotation for 3IHL 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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