30VQ | pdb_000030vq

TabS from Pseudomonas syringae in complex with ANP

PDB DOI: https://doi.org/10.2210/pdb30VQ/pdb

Classification: LIGASE
Organism(s): Pseudomonas syringae
Expression System: Escherichia coli
Mutation(s): No

Deposited: 2026-05-14 Released: 2026-08-26
Deposition Author(s): Ascham, A., Grogan, G.
Funding Organization(s): Not funded

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.90 Å
R-Value Free:
0.253 (Depositor), 0.246 (DCC)
R-Value Work:
0.210 (Depositor), 0.205 (DCC)
R-Value Observed:
0.212 (Depositor)

Starting Model: in silico
View more details

wwPDB Validation 3D Report Full Report

Validation slider image for 30VQ

Ligand Structure Quality Assessment

This is version 1.0 of the entry. See complete history.

Literature

Mutations of the ATP-Grasp Enzyme TabS Alter Substrate Specificity for Tripeptide and Nonpeptide Amide Formation

Ascham, A., Tang, Q., Fairlamb, I.J., Grogan, G.

(2026) ACS Catal

DOI: https://doi.org/10.1021/acscatal.6c04130

Macromolecule Content

Total Structure Weight: 93.37 kDa
Atom Count: 6,029
Modeled Residue Count: 828
Deposited Residue Count: 838
Unique protein chains: 1

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
L-amino acid ligase	A, B	419	Pseudomonas syringae	Mutation(s): 0 Gene Names: tabS
UniProt
Find proteins for Q842E2 (Pseudomonas syringae) Explore Q842E2 Go to UniProtKB: Q842E2
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q842E2
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
ANP (Subject of Investigation/LOI) Query on ANP Download:Ideal Coordinates CCD File SDF format, chain D [auth B] SDF format, chain C [auth A] MOL2 format, chain D [auth B] MOL2 format, chain C [auth A] mmCIF format, chain D [auth B] mmCIF format, chain C [auth A]	C [auth A], D [auth B]	PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER C₁₀ H₁₇ N₆ O₁₂ P₃ PVKSNHVPLWYQGJ-KQYNXXCUSA-N		Interactions Focus chain C [auth A] Focus chain D [auth B] Interactions & Density Focus chain C [auth A] Focus chain D [auth B]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.90 Å
R-Value Free: 0.253 (Depositor), 0.246 (DCC)
R-Value Work: 0.210 (Depositor), 0.205 (DCC)
R-Value Observed: 0.212 (Depositor)

Space Group: I 2 3

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 188.957	α = 90
b = 188.957	β = 90
c = 188.957	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
SCALA	data scaling
MOLREP	phasing

Structure Validation

View Full Validation Report

Ligand Structure Quality Assessment

View more in-depth experimental data

Entry History

& Funding Information

Deposition Data

Released Date: 2026-08-26

Deposition Author(s):

Funding Organization	Location	Grant Number
Not funded		--

Revision History (Full details and data files)

Version 1.0: 2026-08-26
Type: Initial release

RCSB PDB is hosted by

RCSB PDB is a member of

RCSB Partners
Nucleic Acid Knowledgebase

CoreTrustSeal

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.