Biological Assembly 1  

 3D View: Structure

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Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 21052.73 
• Atom Count: 1338 
• Residue Count: 184 
• Unique protein chains: 1

1HA1

HNRNP A1 (RBD1,2) FROM HOMO SAPIENS

• DOI: 10.2210/pdb1HA1/pdb

• Classification: NUCLEAR PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli


• Deposited: 1996-10-30 Released: 1997-05-15 
• Deposition Author(s): Shamoo, Y., Krueger, U., Rice, L., Williams, K.R., Steitz, T.A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.75 Å
• R-Value Free: 0.275 
• R-Value Work: 0.198 

Literature

Crystal structure of the two RNA binding domains of human hnRNP A1 at 1.75 A resolution.

Shamoo, Y., Krueger, U., Rice, L.M., Williams, K.R., Steitz, T.A.

(1997) Nat.Struct.Mol.Biol. 4: 215-222

• PubMed: 9164463 


• PubMed Abstract: 
  

Heterogeneous ribonucleoprotein A1 (hnRNP A1) is an abundant eukaryotic nuclear RNA binding protein. A1 is involved in the packaging of pre-mRNA into hnRNP particles, transport of poly A+ mRNA from the nucleus to the cytoplasm and may modulate splice site selection. The crystal structure of A1(RBD1,2) reveals two independently-folded RNA binding domains (RBDs) connected by a flexible linker. Both RBDs are structurally homologous to the U1A(RBD1), and have their RNA binding platforms oriented in an anti-parallel fashion. The anti-parallel arrangement of the A1 RNA binding platforms suggests mechanisms for RNA condensation and ways of bringing together distant RNA sequences for RNA metabolism such as splicing or transport.

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Related Citations: 

• Determination of the Secondary Structure and Folding Topology of an RNA Binding Domain of Mammalian Hnrnp A1 Protein Using Three-Dimensional Heteronuclear Magnetic Resonance Spectroscopy
  Garrett, D.S.,Lodi, P.J.,Shamoo, Y.,Williams, K.R.,Clore, G.M.,Gronenborn, A.M.
  (1994) Biochemistry 33: 2852




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Organizational Affiliation: 

Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, Connecticut 06520-8114, USA.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
HNRNP A1	A	184	Homo sapiens	Mutation(s): 0  Gene Names: HNRNPA1 (HNRPA1)
Find proteins for P09651 (Homo sapiens) Go to Gene View: HNRNPA1 Go to UniProtKB:  P09651

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.75 Å
• R-Value Free: 0.275 
• R-Value Work: 0.198 
• Space Group: P 1 2₁ 1

Unit Cell:

Length (Å)	Angle (°)
a = 37.600	α = 90.00
b = 43.500	β = 94.70
c = 55.500	γ = 90.00

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	phasing
X-PLOR	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1996-10-30 
• Released Date: 1997-05-15 
• Deposition Author(s): Shamoo, Y., Krueger, U., Rice, L., Williams, K.R., Steitz, T.A.

Revision History 

• Version 1.0: 1997-05-15
  Type: Initial release
• Version 1.1: 2008-03-24
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance