27AF | pdb_000027af

Crystal structure of protein PF1862 from Pyrococcus furiosus crystallized at 04 degree Celsius

PDB DOI: https://doi.org/10.2210/pdb27AF/pdb

Classification: DNA BINDING PROTEIN
Organism(s): Pyrococcus furiosus DSM 3638
Expression System: Escherichia coli BL21(DE3)
Mutation(s): No

Deposited: 2026-05-22 Released: 2026-06-03
Deposition Author(s): Shubhangi, S., Gaikwad, S.S., Taneja, S.S., Baig, S., Palasiyawala, K., Kumar, A., Makde, R.D.
Funding Organization(s): Other government

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.52 Å
R-Value Free:
0.220 (Depositor), 0.220 (DCC)
R-Value Work:
0.184 (Depositor), 0.184 (DCC)
R-Value Observed:
0.186 (Depositor)

Starting Model: in silico
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wwPDB Validation 3D Report Full Report

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

Literature

Crystal structure of PF1862 protein from Pyrococcus furiosus crystallized at 04 degree Celsius

Shubhangi, S., Gaikwad, S.S., Taneja, S.S., Baig, S., Palasiyawala, K., Kumar, A., Makde, R.D.

To be published.

Macromolecule Content

Total Structure Weight: 22.06 kDa
Atom Count: 1,746
Modeled Residue Count: 179
Deposited Residue Count: 187
Unique protein chains: 1

Macromolecules

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Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
DNA-binding protein	A	187	Pyrococcus furiosus DSM 3638	Mutation(s): 0 Gene Names: PF1862
UniProt
Find proteins for Q8TZW3 (Pyrococcus furiosus (strain ATCC 43587 / DSM 3638 / JCM 8422 / Vc1)) Explore Q8TZW3 Go to UniProtKB: Q8TZW3
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q8TZW3
Sequence Annotations Expand
Reference Sequence

Small Molecules

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

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 1.52 Å
R-Value Free: 0.220 (Depositor), 0.220 (DCC)
R-Value Work: 0.184 (Depositor), 0.184 (DCC)
R-Value Observed: 0.186 (Depositor)

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 38.483	α = 90
b = 39.574	β = 100.532
c = 64.933	γ = 90

Software Package:

Software Name	Purpose
XDS	data scaling
PHENIX	phasing
Coot	model building
PHENIX	refinement

Structure Validation

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View more in-depth experimental data

Entry History

& Funding Information

Deposition Data

Released Date: 2026-06-03

Deposition Author(s):

Palasiyawala, K.

Funding Organization	Location	Grant Number
Other government	India	--

Revision History (Full details and data files)

Version 1.0: 2026-06-03
Type: Initial release

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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.