1rn1

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{{STRUCTURE_1rn1| PDB=1rn1 | SCENE= }}
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'''THREE-DIMENSIONAL STRUCTURE OF GLN 25-RIBONUCLEASE T1 AT 1.84 ANGSTROMS RESOLUTION: STRUCTURAL VARIATIONS AT THE BASE RECOGNITION AND CATALYTIC SITES'''
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===THREE-DIMENSIONAL STRUCTURE OF GLN 25-RIBONUCLEASE T1 AT 1.84 ANGSTROMS RESOLUTION: STRUCTURAL VARIATIONS AT THE BASE RECOGNITION AND CATALYTIC SITES===
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==Overview==
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The structure of the Gln25 variant of ribonuclease T1 (RNase T1) crystallized at pH 7 and at high ionic strength has been solved by molecular replacement using the coordinates of the Lys25-RNase T1/2'-guanylic acid (2'GMP) complex at pH 5 [Arni et al. (1988) J. Biol. Chem. 263, 15358-15368] and refined by energy minimization and stereochemically restrained least-squares minimization to a crystallographic R-factor of 14.4% at 1.84-A resolution. The asymmetric unit contains three molecules, and the final model consists of 2302 protein atoms, 3 sulfates (at the catalytic sites), and 179 solvent water molecules. The estimated root mean square (rms) error in the coordinates is 0.15 A, and the rms deviation from ideality is 0.018 A for bond lengths and 1.8 degrees for bond angles. Significant differences are observed between the three molecules in the asymmetric unit at the base recognition and catalytic sites.
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==About this Structure==
==About this Structure==
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[[Category: Ravichandran, K G.]]
[[Category: Ravichandran, K G.]]
[[Category: Tulinsky, A.]]
[[Category: Tulinsky, A.]]
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Revision as of 10:28, 29 July 2008

Image:1rn1.png

Template:STRUCTURE 1rn1

THREE-DIMENSIONAL STRUCTURE OF GLN 25-RIBONUCLEASE T1 AT 1.84 ANGSTROMS RESOLUTION: STRUCTURAL VARIATIONS AT THE BASE RECOGNITION AND CATALYTIC SITES

Template:ABSTRACT PUBMED 1554699

About this Structure

1RN1 is a Single protein structure of sequence from Aspergillus oryzae. Full crystallographic information is available from OCA.

Reference

Three-dimensional structure of Gln25-ribonuclease T1 at 1.84-A resolution: structural variations at the base recognition and catalytic sites., Arni RK, Pal GP, Ravichandran KG, Tulinsky A, Walz FG Jr, Metcalf P, Biochemistry. 1992 Mar 31;31(12):3126-35. PMID:1554699

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