ISDA: 22ET

Deposition Date 2026-01-08

Release Date 2026-07-29

Last Version Date 2026-07-29

Entry Detail

PDB ID:

22ET

Keywords:

IMMUNE SYSTEM/DNA/RNA

Title:

Cryo-EM structure of Retron Ec78 complex (cis)

Biological Source:

Source Organism(s):

Escherichia coli (Taxon ID: 562)

Expression System(s):

Escherichia coli bl21

Method Details:

Experimental Method:

ELECTRON MICROSCOPY

Resolution:

2.69 Å

Aggregation State:

PARTICLE

Reconstruction Method:

SINGLE PARTICLE

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Macromolecular Entities

Structural Superimposition Protein Blast

Polymer Type:polypeptide(L)
Molecule:Retron
Chain IDs:G (auth: A)
Chain Length:310
Number of Molecules:1
Biological Source:Escherichia coli

Structural Superimposition Protein Blast

Polymer Type:polypeptide(L)
Molecule:PtuA
Chain IDs:A (auth: E), B (auth: D), C (auth: B), D (auth: C)
Chain Length:551
Number of Molecules:4
Biological Source:Escherichia coli

Structural Superimposition Protein Blast

Polymer Type:polypeptide(L)
Molecule:PtuB
Chain IDs:H, I (auth: F)
Chain Length:215
Number of Molecules:2
Biological Source:Escherichia coli

Polymer Type:polydeoxyribonucleotide
Molecule:DNA (74-MER)
Chain IDs:E (auth: M)
Chain Length:74
Number of Molecules:1
Biological Source:Escherichia coli

Polymer Type:polyribonucleotide
Molecule:RNA (66-MER)
Chain IDs:F (auth: N)
Chain Length:66
Number of Molecules:1
Biological Source:Escherichia coli

Ligand Molecules