1T2H	Hydrolase	date	Apr 21, 2004
title	Y81w Mutant Of Rnase Sa From Streptomyces Aureofaciens
authors	J.Sevcik, L.Urbanikova
compound		source
Molecule: Guanyl-Specific Ribonuclease Sa Chain: A, B Synonym: Rnase Sa Ec: 3.1.27.3 Engineered: Yes Mutation: Yes		Organism_scientific: Streptomyces Aureofaciens Organism_taxid: 1894 Strain: Bmk Gene: U39467 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Novablue Expression_system_vector_type: Plasmid Expression_system_vector: Peh100 Expression_system_plasmid: Puc19
symmetry	Space Group: P 21 21 21	R_factor 0.145 R_Free 0.166
crystal cell	length a length b length c angle alpha angle beta angle gamma 38.206 64.309 77.666 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.00 Å
ligand	SO4	enzyme	Hydrolase E.C.3.1.27.3 BRENDA
related structures	by homologous chain: 1LNI, 1T2I
Gene Ontology	Chain Function Process Component A, B nuclease activity endonuclease activity endoribonuclease activity ribonuclease activity
Primary reference	Contribution of single tryptophan residues to the fluorescence and stability of ribonuclease sa., Alston RW, Urbanikova L, Sevcik J, Lasagna M, Reinhart GD, Scholtz JM, Pace CN, Biophys J 2004 Dec;87(6):4036-47. Epub . PMID:15377518

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (92 Kb) [Save to disk] Biological Unit Coordinates (1t2h.pdb1.gz) 48 Kb Biological Unit Coordinates (1t2h.pdb2.gz) 41 Kb LPC: Ligand-Protein Contacts for 1T2H CSU: Contacts of Structural Units for 1T2H Likely Quarternary Molecular Structure file(s) for 1T2H Structure Factors (1320 Kb) Retrieve 1T2H in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1T2H from S2C, [Save to disk] Re-refined 1t2h structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1T2H 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 1T2H

Ramachandran plot from PDBSum

Structure-derived information

Conformational Epitope Prediction for 1T2H 1T2HA 1T2HB from the CEP Server. Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1T2H, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1t2ha_, region A [Jmol] [rasmolscript] [script source]     - Domain d1t2hb_, region B [Jmol] [rasmolscript] [script source]

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1t2h_B] [1t2h_A] [1t2h] SWISS-PROT database: [P05798] Domain organization of [RNSA_STRAU] by SWISSPFAM

Other resources with information on 1T2H

Community annotation for 1T2H at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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