Biological Assembly 1  

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

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

Macromolecule Content

• Total Structure Weight: 113.9 kDa 
• Atom Count: 7,691 
• Modelled Residue Count: 971 
• Deposited Residue Count: 983 
• Unique protein chains: 2

 1DLO

HUMAN IMMUNODEFICIENCY VIRUS TYPE 1

• PDB DOI: 10.2210/pdb1DLO/pdb

• Classification: NUCLEOTIDYLTRANSFERASE
• Organism(s): Human immunodeficiency virus 1
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 1996-04-17 Released: 1996-08-01 
• Deposition Author(s): Hsiou, Y., Ding, J., Das, K., Hughes, S., Arnold, E.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 0.336 
• R-Value Work: 0.249 
• R-Value Observed: 0.249 

Literature

Structure of unliganded HIV-1 reverse transcriptase at 2.7 A resolution: implications of conformational changes for polymerization and inhibition mechanisms.

Hsiou, Y., Ding, J., Das, K., Clark Jr., A.D., Hughes, S.H., Arnold, E.

(1996) Structure 4: 853-860

• PubMed: 8805568 
• DOI: 10.1016/s0969-2126(96)00091-3
• Primary Citation of Related Structures:  
  1DLO


• PubMed Abstract: 
  

HIV-1 reverse transcriptase (RT) is a major target for anti-HIV drugs. A considerable amount of information about the structure of RT is available, both unliganded and in complex with template-primer or non-nucleoside RT inhibitors (NNRTIs). But significant conformational differences in the p66 polymerase domain among the unliganded structures have complicated the interpretation of these data, leading to different proposals for the mechanisms of polymerization and inhibition.

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Related Citations: 

• Structure of HIV-1 Reverse Transcriptase in a Complex with the Non-Nucleoside Inhibitor Alpha-Apa R 95845 at 2.8 A Resolution
  Ding, J., Das, K., Tantillo, C., Zhang, W., Clark Junior, A.D., Jessen, S., Lu, X., Hsiou, Y., Jacobo-Molina, A., Andries, K., al., et
  (1995) Structure 3: 365

• Structure of HIV-1 RT/TIBO R 86183 Complex Reveals Similarity in the Binding of Diverse Nonnucleoside Inhibitors
  Ding, J., Das, K., Moereels, H., Koymans, L., Andries, K., Janssen, P.A.J., Hughes, S.H., Arnold, E.
  (1995) Nat Struct Biol 2: 407

• Crystal Structure of Human Immunodeficiency Virus Type 1 Reverse Transcriptase Complexed with Double-Stranded DNA at 3.0 A Resolution Shows Bent DNA
  Jacobo-Molina, A., Ding, J., Nanni, R.G., Clark Junior, A.D., Lu, X., Tantillo, C., Williams, R.L., Kamer, G., Ferris, A.L., Clark, P., al., et
  (1993) Proc Natl Acad Sci U S A 90: 6320

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Organizational Affiliation: 

Center for Advanced Biotechnology and Medicine (CABM), Piscataway, NJ, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
HUMAN IMMUNODEFICIENCY VIRUS TYPE 1 REVERSE TRANSCRIPTASE	A	556	Human immunodeficiency virus 1	Mutation(s): 1  EC: 2.7.7.49 (PDB Primary Data), 3.4.23.16 (UniProt), 2.7.7.7 (UniProt), 3.1.26.13 (UniProt), 3.1.13.2 (UniProt), 2.7.7 (UniProt), 3.1 (UniProt)
UniProt
Find proteins for P03366 (Human immunodeficiency virus type 1 group M subtype B (isolate BH10)) Explore P03366  Go to UniProtKB:  P03366

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
HUMAN IMMUNODEFICIENCY VIRUS TYPE 1 REVERSE TRANSCRIPTASE	B	427	Human immunodeficiency virus 1	Mutation(s): 1  EC: 2.7.7.49 (PDB Primary Data), 3.4.23.16 (UniProt), 2.7.7.7 (UniProt), 3.1.26.13 (UniProt), 3.1.13.2 (UniProt), 2.7.7 (UniProt), 3.1 (UniProt)
UniProt
Find proteins for P03366 (Human immunodeficiency virus type 1 group M subtype B (isolate BH10)) Explore P03366  Go to UniProtKB:  P03366

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 0.336 
• R-Value Work: 0.249 
• R-Value Observed: 0.249 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 235.5	α = 90
b = 70.3	β = 106.1
c = 93.3	γ = 90

Software Package:

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

Structure Validation

Entry History 

Deposition Data

• Released Date: 1996-08-01 
Deposition Author(s): Hsiou, Y., Ding, J., Das, K., Hughes, S., Arnold, E.

Revision History  

• Version 1.0: 1996-08-01
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2021-11-03
  Changes: Database references, Other