1AD6 | pdb_00001ad6

DOMAIN A OF HUMAN RETINOBLASTOMA TUMOR SUPPRESSOR

PDB DOI: https://doi.org/10.2210/pdb1AD6/pdb

Classification: TRANSCRIPTION REGULATION
Organism(s): Homo sapiens
Expression System: Escherichia coli BL21(DE3)
Mutation(s): No

Deposited: 1997-02-21 Released: 1998-08-26
Deposition Author(s): Kim, H.Y., Cho, Y.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.30 Å
R-Value Free:
0.240 (Depositor)
R-Value Work:
0.201 (Depositor)

wwPDB Validation 3D Report Full Report

Validation slider image for 1AD6

This is version 1.3 of the entry. See complete history.

Literature

Structural similarity between the pocket region of retinoblastoma tumour suppressor and the cyclin-box.

Kim, H.Y., Cho, Y.

(1997) Nat Struct Biol 4: 390-395

PubMed: 9145110 Search on PubMed
DOI: https://doi.org/10.1038/nsb0597-390
Primary Citation Related Structures:
1AD6

PubMed Abstract:
The pocket region of retinoblastoma tumour suppressor (Rb) is essential for tumour suppressing activity. The Rb pocket is primarily composed of two domains, A and B. We have determined the X-ray crystal structure of domain A (residues 378-562) at 2.3 A resolution. Domain A consists of nine alpha-helices. The overall arrangement of helices in domain A is remarkably similar to the cyclin-box folds found in the crystal structures of cyclin A and TFIIB. This structure, along with domain B which is predicted to be homologous to the cyclin-box, suggests that the Rb pocket is composed of two cyclin-box fold domains. We present the structural/functional features of the Rb pocket, and the potential binding region for cellular or viral proteins within domain A.

Organizational Affiliation

Structural Biology Center, Korea Institute of Science and Technology, Cheongryang, Seoul, South Korea.

Macromolecule Content

Total Structure Weight: 21.34 kDa
Atom Count: 1,567
Modeled Residue Count: 185
Deposited Residue Count: 185
Unique protein chains: 1

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
RETINOBLASTOMA TUMOR SUPPRESSOR	A	185	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for P06400 (Homo sapiens) Explore P06400 Go to UniProtKB: P06400
PHAROS: P06400 GTEx: ENSG00000139687
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P06400
Sequence Annotations Expand
Reference Sequence

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.30 Å
R-Value Free: 0.240 (Depositor)
R-Value Work: 0.201 (Depositor)

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 38.6	α = 90
b = 68.04	β = 90
c = 80.83	γ = 90

Software Package:

Software Name	Purpose
MLPHARE	phasing
TNT	refinement
DENZO	data reduction
SCALEPACK	data scaling

Structure Validation

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View more in-depth experimental data

Entry History

Deposition Data

Released Date: 1998-08-26

Deposition Author(s):

Revision History (Full details and data files)

Version 1.0: 1998-08-26
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: 2024-02-07
Changes: Data collection, Database references

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.