Biological Assembly 1  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 22.74 kDa 
• Atom Count: 1596 
• Modelled Residue Count: 194 
• Deposited Residue Count: 196 
• Unique protein chains: 2

1CMI

STRUCTURE OF THE HUMAN PIN/LC8 DIMER WITH A BOUND PEPTIDE

• PDB DOI: 10.2210/pdb1CMI/pdb
• Entry: 1CMI supersedes: 1B1W

• Classification: OXIDOREDUCTASE/OXIDOREDUCTASE INHIBITOR
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21
• Mutation(s): No 


• Deposited: 1999-05-06 Released: 2000-02-21 
• Deposition Author(s): Liang, J., Guo, W., Jaffery, S., Snyder, S., Clardy, J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.283 
• R-Value Work: 0.240 

Literature

Structure of the PIN/LC8 dimer with a bound peptide.

Liang, J., Jaffrey, S.R., Guo, W., Snyder, S.H., Clardy, J.

(1999) Nat Struct Biol 6: 735-740

• PubMed: 10426949 
• DOI: 10.1038/11501
• Primary Citation of Related Structures:  
  1CMI


• PubMed Abstract: 
  

The structure of the protein known both as neuronal nitric oxide synthase inhibitory protein, PIN (protein inhibitor of nNOS), and also as the 8 kDa dynein light chain (LC8) has been solved by X-ray diffraction. Two PIN/LC8 monomers related by a two-fold axis form a rectangular dimer. Two pairs of alpha-helices cover opposite faces, and each pair of helices packs against a beta-sheet with five antiparallel beta-strands. Each five-stranded beta-sheet contains four strands from one monomer and a fifth strand from the other monomer. A 13-residue peptide from nNOS is bound to the dimer in a deep hydrophobic groove as a sixth antiparallel beta-strand. The structure provides key insights into dimerization of and peptide binding by the multifunctional PIN/LC8 protein.

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Organizational Affiliation: 

Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853-1301, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PROTEIN INHIBITOR OF NEURONAL NITRIC OXIDE SYNTHASE	A, B	85	Homo sapiens	Mutation(s): 0  Gene Names: DYNLL1, DLC1, DNCL1, DNCLC1, HDLC1
UniProt & NIH Common Fund Data Resources
Find proteins for P63167 (Homo sapiens) Explore P63167  Go to UniProtKB:  P63167
PHAROS:  P63167

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Nitric oxide synthase, brain	C, D	13	N/A	Mutation(s): 0  EC: 1.14.13.39
UniProt
Find proteins for P29476 (Rattus norvegicus) Explore P29476  Go to UniProtKB:  P29476

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.283 
• R-Value Work: 0.240 
• Space Group: I 4₁ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 67.2	α = 90
b = 67.2	β = 90
c = 217	γ = 90

Software Package:

Software Name	Purpose
SOLVE	phasing
X-PLOR	refinement
MOSFLM	data reduction
CCP4	data scaling
CNS	refinement

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1999-05-06 
• Released Date: 2000-02-21 
Deposition Author(s): Liang, J., Guo, W., Jaffery, S., Snyder, S., Clardy, J.
• This entry supersedes: 1B1W

Revision History  

• Version 1.0: 2000-02-21
  Type: Initial release
  
• Version 1.1: 2008-04-26
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2019-12-18
  Changes: Advisory, Derived calculations