7XQC

Crystal structure of N-terminal domain of Rv2908c fused with Maltose Binding Protein (MBP)

• PDB DOI: https://doi.org/10.2210/pdb7XQC/pdb

• Classification: RNA BINDING PROTEIN
• Organism(s): Escherichia coli K-12, Mycobacterium tuberculosis H37Rv
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2022-05-07 Released: 2023-05-17 
• Deposition Author(s): Thakur, K.G., Singh, A., Kapoor, S., Deep, A.
• Funding Organization(s): Council of Scientific & Industrial Research (CSIR), Department of Biotechnology (DBT, India)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free: 
  0.254 (Depositor), 0.250 (DCC) 
• R-Value Work: 
  0.196 (Depositor), 0.200 (DCC) 
• R-Value Observed: 
  0.199 (Depositor) 

Starting Model: experimental

Literature

Crystal structure of N-terminal domain of Rv2908c fused with Maltose Binding Protein (MBP)

Thakur, K.G., Singh, A., Kapoor, S.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly Evidence: gel filtration

Biological Assembly 2  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 196.62 kDa 
• Atom Count: 13,042 
• Modelled Residue Count: 1,655 
• Deposited Residue Count: 1,800 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Fusion protein of Maltose-binding periplasmic protein and RNA-binding protein KhpA	A, B, C, D	450	Escherichia coli K-12, Mycobacterium tuberculosis H37Rv This entity is chimeric	Mutation(s): 0  Gene Names: malE, khpA, Rv2908c, MTCY274.40c
UniProt
Find proteins for P0AEX9 (Escherichia coli (strain K12)) Explore P0AEX9  Go to UniProtKB:  P0AEX9
Find proteins for P9WFM7 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)) Explore P9WFM7  Go to UniProtKB:  P9WFM7
UniProt Groups	P9WFM7P0AEX9

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PEG	E [auth A], F [auth B], G [auth C], H [auth D]	DI(HYDROXYETHYL)ETHER C4 H10 O3 MTHSVFCYNBDYFN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.80 Å
• R-Value Free:  0.254 (Depositor), 0.250 (DCC) 
• R-Value Work:  0.196 (Depositor), 0.200 (DCC) 
• R-Value Observed: 0.199 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 68.86	α = 90
b = 189.58	β = 114.73
c = 72.13	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
MOSFLM	data reduction
SCALA	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-05-17 
Deposition Author(s): Thakur, K.G., Singh, A., Kapoor, S., Deep, A.

---

Funding Organization	Location	Grant Number
Council of Scientific & Industrial Research (CSIR)	India	--
Department of Biotechnology (DBT, India)	India	--

Revision History  

• Version 1.0: 2023-05-17
  Type: Initial release
  
• Version 1.1: 2023-11-29
  Changes: Data collection, Refinement description