ISDA: 28TI

Deposition Date 2026-02-18

Release Date 2026-11-11

Last Version Date 2026-11-11

Entry Detail

PDB ID:

28TI

Keywords:

TRANSFERASE

Title:

TraI relaxase in its helicase state in complex with fork DNA (TraI-HEL)

Biological Source:

Source Organism(s):

Escherichia coli K-12 (Taxon ID: 83333)
Escherichia coli (Taxon ID: 562)

Expression System(s):

Escherichia coli bl21(de3)

Method Details:

Experimental Method:

ELECTRON MICROSCOPY

Resolution:

3.50 Å

Aggregation State:

PARTICLE

Reconstruction Method:

SINGLE PARTICLE

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Macromolecular Entities

Structures with similar UniProt ID

Structural Superimposition Protein Blast

Polymer Type:polypeptide(L)
Molecule:Multifunctional conjugation p
Gene (Uniprot):traI
Chain IDs:A
Chain Length:1756
Number of Molecules:1
Biological Source:Escherichia coli K-12

UniProt ID:Q6TDU5 EC:5.6.2.-,5.6.2.3

Polymer Type:polydeoxyribonucleotide
Molecule:DNA (32-MER)
Chain IDs:B
Chain Length:65
Number of Molecules:1
Biological Source:Escherichia coli

Polymer Type:polydeoxyribonucleotide
Molecule:DNA (5'-D(P*GP*GP*GP*TP*GP*TP
Chain IDs:C
Chain Length:34
Number of Molecules:1
Biological Source:Escherichia coli K-12

Ligand Molecules

Primary Citation

Relaxase asymmetry drives initiation of bacterial conjugation

Gorenkin, D, Liang, R, Patkowski, J.B, Bodet-Lefevre, S, Costa, T.R.D, Ilangovan, A.Show

Nat Commun ? ? ? (2026)

DOI: 10.1038/s41467-026-78888-w

Primary Citation of related structures

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