1Y94	Hydrolase	date	Dec 14, 2004
title	Crystal Structure Of The G16sn17tp19as20an67d Variant Of Seminal Ribonuclease
authors	D.Picone, A.Di Fiore, C.Ercole, M.Franzese, F.Sica, S.Tomaselli, L.Mazzarella
compound		source
Molecule: Seminal Ribonuclease Chain: A, B Synonym: Seminal Rnase, S-Rnase, Ribonuclease Bs-1 Ec: 3.1.27.5 Engineered: Yes Mutation: Yes		Organism_scientific: Bos Taurus Organism_common: Cattle Organism_taxid: 9913 Gene: Srn Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet-24b(+)
symmetry	Space Group: P 21 21 21	R_factor 0.208 R_Free 0.259
crystal cell	length a length b length c angle alpha angle beta angle gamma 48.959 61.102 81.215 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.20 Å
ligand		enzyme	Hydrolase E.C.3.1.27.5 BRENDA
related structures	by homologous chain: 1J81, 1JS0
Gene Ontology	Chain Function Process Component A, B ribonuclease A activity
Primary reference	The role of the hinge loop in domain swapping. The special case of bovine seminal ribonuclease., Picone D, Di Fiore A, Ercole C, Franzese M, Sica F, Tomaselli S, Mazzarella L, J Biol Chem 2005 Apr 8;280(14):13771-8. Epub 2005 Jan 12. PMID:15647261

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (44 Kb) [Save to disk] Biological Unit Coordinates (1y94.pdb1.gz) 40 Kb CSU: Contacts of Structural Units for 1Y94 Likely Quarternary Molecular Structure file(s) for 1Y94 Structure Factors (166 Kb) Retrieve 1Y94 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1Y94 from S2C, [Save to disk] Re-refined 1y94 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1Y94 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 1Y94

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 1Y94, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1y94a_, region A [Jmol] [rasmolscript] [script source]     - Domain d1y94b_, region B [Jmol] [rasmolscript] [script source]

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1y94_B] [1y94_A] [1y94] SWISS-PROT database: [P00669] Domain organization of [RNS_BOVIN] by SWISSPFAM Domain found in 1Y94: [RNAse_Pc ] by SMART

Other resources with information on 1Y94

Community annotation for 1Y94 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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