37TT | pdb_000037tt

Crystal structure of Z4-C3ii

PDB DOI: https://doi.org/10.2210/pdb37TT/pdb
Entry: 37TT supersedes: 9CC4

Classification: DE NOVO PROTEIN
Organism(s): synthetic construct
Expression System: Escherichia coli
Mutation(s): No

Deposited: 2026-08-05 Released: 2026-08-19
Deposition Author(s): Bera, A.K., Pyles, H., Saragovi, A., Kang, A., Baker, D.
Funding Organization(s): National Science Foundation (NSF, United States), Howard Hughes Medical Institute (HHMI)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.99 Å
R-Value Free:
0.290 (Depositor), 0.291 (DCC)
R-Value Work:
0.231 (Depositor), 0.232 (DCC)
R-Value Observed:
0.237 (Depositor)

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

Validation slider image for 37TT

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

Literature

Programmed mineralization of metal-oxides by de novo designed protein templates

Saragovi, A., Pyles, H., Bera, A.K., Baker, D.

To be published.

Macromolecule Content

Total Structure Weight: 147.71 kDa
Atom Count: 9,243
Modeled Residue Count: 1,236
Deposited Residue Count: 1,392
Unique protein chains: 1

Macromolecules

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Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Z4 c3ii	A B C D E [auth F] A, B, C, D, E [auth F], F [auth E]	232	synthetic construct	Mutation(s): 0
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
Sequence Annotations Expand
Reference Sequence

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.99 Å
R-Value Free: 0.290 (Depositor), 0.291 (DCC)
R-Value Work: 0.231 (Depositor), 0.232 (DCC)
R-Value Observed: 0.237 (Depositor)

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 67.593	α = 90
b = 68.52	β = 90.884
c = 111.752	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
Aimless	data scaling
PHASER	phasing

Structure Validation

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Entry History

& Funding Information

Deposition Data

Released Date: 2026-08-19

Deposition Author(s):

This entry supersedes: 9CC4

Funding Organization	Location	Grant Number
National Science Foundation (NSF, United States)	United States	--
Howard Hughes Medical Institute (HHMI)	United States	--

Revision History (Full details and data files)

Version 1.0: 2026-08-19
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.