ISDA

Deposition Date 2022-02-25

Release Date 2023-04-26

Last Version Date 2025-06-25

Entry Detail

PDB ID:

7X1Y

Keywords:

CIRCADIAN CLOCK PROTEIN

Title:

Structure of the phosphorylation-site double mutant S431A/T432A of the KaiC circadian clock protein

Biological Source:

Source Organism:

Synechococcus elongatus PCC 7942 = FACHB-805 (Taxon ID: 1140)

Host Organism:

Escherichia coli BL21(DE3)

Method Details:

Experimental Method:

ELECTRON MICROSCOPY

Resolution:

3.30 Å

Aggregation State:

PARTICLE

Reconstruction Method:

SINGLE PARTICLE

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Circadian clock oscillator protein KaiC
Gene (Uniprot):kaiC
Mutations:S431A, T432A
Chain IDs:A, B, C, D, E, F
Chain Length:471
Number of Molecules:6
Biological Source:Synechococcus elongatus PCC 7942 = FACHB-805

UniProt ID:Q79PF4 Pfam ID:PF06745

Ligand Molecules

ATP

Primary Citation

Determining subunit-subunit interaction from statistics of cryo-EM images: observation of nearest-neighbor coupling in a circadian clock protein complex

Han, X, Zhang, D, Hong, L, Yu, D, Wu, Z, Yang, T, Rust, M, Tu, Y, Ouyang, Q.Show

Nat Commun 14 5907 ? (2023)

DOI: 10.1038/s41467-023-41575-1

Primary Citation of related structures