7YOH

Crystal structure of I88L single mutant of O-acetylserine sulfhydrylase from Haemophilus influenzae in complex with high-affinity inhibitory peptide from serine acetyltransferase of Haemophilus influenzae at 2.5 A

PDB DOI: https://doi.org/10.2210/pdb7YOH/pdb

Classification: TRANSFERASE/TRANSFERASE INHIBITOR
Organism(s): Haemophilus influenzae Rd KW20
Expression System: Escherichia coli BL21(DE3)
Mutation(s): Yes

Deposited: 2022-08-01 Released: 2023-08-02
Deposition Author(s): Kumar, N., Rahisuddin, R., Saini, N., Singh, A.K.
Funding Organization(s): Department of Biotechnology (DBT, India)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.50 Å
R-Value Free: 0.295
R-Value Work: 0.243

wwPDB Validation 3D Report Full Report

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

Literature

Crystal structure of I88L single mutant of O-acetylserine sulfhydrylase from Haemophilus influenzae in complex with high-affinity inhibitory peptide from serine acetyltransferase of Salmonella typhimurium at 2.14 A

Kumar, N., Rahisuddin, R., Saini, N., Singh, A.K.

To be published.

Macromolecule Content

Total Structure Weight: 34.46 kDa
Atom Count: 2,304
Modelled Residue Count: 315
Deposited Residue Count: 323
Unique protein chains: 2

Macromolecules

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Cysteine synthase	A	316	Haemophilus influenzae Rd KW20	Mutation(s): 1 Gene Names: cysK, HI_1103 EC: 2.5.1.47
UniProt
Find proteins for P45040 (Haemophilus influenzae (strain ATCC 51907 / DSM 11121 / KW20 / Rd)) Explore P45040 Go to UniProtKB: P45040
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P45040
Sequence Annotations Expand
Reference Sequence

Find similar proteins by: Sequence | 3D Structure

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Peptide from Serine acetyltransferase	B [auth P]	7	Haemophilus influenzae Rd KW20	Mutation(s): 0 EC: 2.3.1.30
UniProt
Find proteins for P43886 (Haemophilus influenzae (strain ATCC 51907 / DSM 11121 / KW20 / Rd)) Explore P43886 Go to UniProtKB: P43886
Entity Groups
UniProt Group	P43886
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
CL (Subject of Investigation/LOI) Query on CL Download Ideal Coordinates CCD File SDF format, chain C [auth A] MOL2 format, chain C [auth A] mmCIF format, chain C [auth A]	C [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M		Interactions Focus chain C [auth A] Interactions & Density Focus chain C [auth A]

Modified Residues 1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
LLP Query on LLP	A	L-PEPTIDE LINKING	C₁₄ H₂₂ N₃ O₇ P		LYS

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.50 Å
R-Value Free: 0.295
R-Value Work: 0.243
Space Group: I 4₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 112.75	α = 90
b = 112.75	β = 90
c = 44.46	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
SCALA	data scaling
PHASER	phasing

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

Released Date: 2023-08-02

Deposition Author(s):

Funding Organization	Location	Grant Number
Department of Biotechnology (DBT, India)	India	BT/PR5236/MED/29/504/2012

Revision History (Full details and data files)

Version 1.0: 2023-08-02
Type: Initial release

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.