4LVR | pdb_00004lvr

Crystal structure of IFT81 N-terminal domain

PDB DOI: https://doi.org/10.2210/pdb4LVR/pdb

Classification: TRANSPORT PROTEIN
Organism(s): Chlamydomonas reinhardtii
Expression System: Escherichia coli BL21(DE3)
Mutation(s): No

Deposited: 2013-07-26 Released: 2013-09-11
Deposition Author(s): Bhogaraju, S.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.60 Å
R-Value Free:
0.285 (Depositor), 0.303 (DCC)
R-Value Work:
0.252 (Depositor), 0.257 (DCC)
R-Value Observed:
0.255 (Depositor)

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This is version 1.1 of the entry. See complete history.

Literature

Molecular Basis of Tubulin Transport Within the Cilium by IFT74 and IFT81.

Bhogaraju, S., Cajanek, L., Fort, C., Blisnick, T., Weber, K., Taschner, M., Mizuno, N., Lamla, S., Bastin, P., Nigg, E.A., Lorentzen, E.

(2013) Science 341: 1009-1012

PubMed: 23990561 Search on PubMed Search on PubMed Central
DOI: https://doi.org/10.1126/science.1240985
Primary Citation Related Structures:
4LVP, 4LVR

PubMed Abstract:
Intraflagellar transport (IFT) of ciliary precursors such as tubulin from the cytoplasm to the ciliary tip is involved in the construction of the cilium, a hairlike organelle found on most eukaryotic cells. However, the molecular mechanisms of IFT are poorly understood. Here, we found that the two core IFT proteins IFT74 and IFT81 form a tubulin-binding module and mapped the interaction to a calponin homology domain of IFT81 and a highly basic domain in IFT74. Knockdown of IFT81 and rescue experiments with point mutants showed that tubulin binding by IFT81 was required for ciliogenesis in human cells.

Organizational Affiliation

Department of Structural Cell Biology, Max Planck Institute of Biochemistry, Martinsried, Germany.

Macromolecule Content

Total Structure Weight: 14.18 kDa
Atom Count: 922
Modeled Residue Count: 120
Deposited Residue Count: 124
Unique protein chains: 1

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Intraflagellar transport protein 81	A	124	Chlamydomonas reinhardtii	Mutation(s): 0 Gene Names: IFT81, CHLREDRAFT_138649
UniProt
Find proteins for Q68RJ5 (Chlamydomonas reinhardtii) Explore Q68RJ5 Go to UniProtKB: Q68RJ5
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q68RJ5
Sequence Annotations Expand
Reference Sequence

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.60 Å
R-Value Free: 0.285 (Depositor), 0.303 (DCC)
R-Value Work: 0.252 (Depositor), 0.257 (DCC)
R-Value Observed: 0.255 (Depositor)

Space Group: P 6₄ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 75.07	α = 90
b = 75.07	β = 90
c = 93.33	γ = 120

Software Package:

Software Name	Purpose
XDS	data scaling
PHENIX	model building
PHENIX	refinement
XDS	data reduction
PHENIX	phasing

Structure Validation

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Entry History

Deposition Data

Released Date: 2013-09-11

Deposition Author(s):

Revision History (Full details and data files)

Version 1.0: 2013-09-11
Type: Initial release
Version 1.1: 2024-02-28
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.