2B34

Structure of MAR1 Ribonuclease from Caenorhabditis elegans

• PDB DOI: https://doi.org/10.2210/pdb2B34/pdb

• Classification: HYDROLASE
• Organism(s): Caenorhabditis elegans
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2005-09-19 Released: 2005-09-27 
• Deposition Author(s): Schormann, N., Karpova, E., Li, S., Symersky, J., Zhang, Y., Lu, S., Zhou, Q., Lin, G., Cao, Z., Luo, M., Qiu, S., Luan, C.-H., Luo, D., Huang, W., Shang, Q., McKinstry, A., An, J., Tsao, J., Carson, M., Stinnett, M., Chen, Y., Johnson, D., Gary, R., Arabshahi, A., Bunzel, R., Bray, T., DeLucas, L., Southeast Collaboratory for Structural Genomics (SECSG)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.14 Å
• R-Value Free: 
  0.263 (Depositor) 
• R-Value Work: 
  0.220 (Depositor), 0.220 (DCC) 
• R-Value Observed: 
  0.222 (Depositor) 

Starting Model: experimental

Literature

Structure of MAR1 Ribonuclease from Caenorhabditis elegans

Schormann, N., Karpova, E., Li, S., Symersky, J., Zhang, Y., Lu, S., Zhou, Q., Lin, G., Cao, Z., Luo, M., Qiu, S., Luan, C.-H., Luo, D., Huang, W., Shang, Q., McKinstry, A., An, J., Tsao, J., Carson, M., Stinnett, M., Chen, Y., Johnson, D., Gary, R., Arabshahi, A., Bunzel, R., Bray, T., DeLucas, L.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C4  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

Global Symmetry: Cyclic - C4  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 2 assigned by authors and generated by PISA (software)

Biological Assembly 3  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 8-mer - A8 

Biological assembly 3 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 175.02 kDa 
• Atom Count: 12,463 
• Modelled Residue Count: 1,536 
• Deposited Residue Count: 1,592 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
MAR1 Ribonuclease	A, B, C, D, E, F, G, H	199	Caenorhabditis elegans	Mutation(s): 0
UniProt
Find proteins for Q20062 (Caenorhabditis elegans) Explore Q20062  Go to UniProtKB:  Q20062

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.14 Å
• R-Value Free:  0.263 (Depositor) 
• R-Value Work:  0.220 (Depositor), 0.220 (DCC) 
• R-Value Observed: 0.222 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 89.545	α = 90
b = 113.973	β = 90
c = 151.322	γ = 90

Software Package:

Software Name	Purpose
HKL-2000	data collection
SCALEPACK	data scaling
MOLREP	phasing
REFMAC	refinement
HKL-2000	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2005-09-27 
Deposition Author(s): Schormann, N., Karpova, E., Li, S., Symersky, J., Zhang, Y., Lu, S., Zhou, Q., Lin, G., Cao, Z., Luo, M., Qiu, S., Luan, C.-H., Luo, D., Huang, W., Shang, Q., McKinstry, A., An, J., Tsao, J., Carson, M., Stinnett, M., Chen, Y., Johnson, D., Gary, R., Arabshahi, A., Bunzel, R., Bray, T., DeLucas, L., Southeast Collaboratory for Structural Genomics (SECSG)

Revision History  

• Version 1.0: 2005-09-27
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2023-08-23
  Changes: Data collection, Database references, Refinement description
• Version 1.4: 2024-11-13
  Changes: Structure summary