7RRN

E. coli cysteine desulfurase SufS R56A

• PDB DOI: https://doi.org/10.2210/pdb7RRN/pdb

• Classification: TRANSFERASE
• Organism(s): Escherichia coli
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2021-08-10 Released: 2023-01-18 
• Deposition Author(s): Dunkle, J.A., Gogar, R., Frantom, P.A.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 0.231 
• R-Value Work: 0.206 
• R-Value Observed: 0.207 

Literature

Contributions of the active site floor in cysteine desulfurase activity

Conte, J.V., Gogar, R., Dunkle, J.A., Frantom, P.A.

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

Macromolecule Content

• Total Structure Weight: 44.68 kDa 
• Atom Count: 3,165 
• Modelled Residue Count: 403 
• Deposited Residue Count: 406 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Cysteine desulfurase	A	406	Escherichia coli	Mutation(s): 1  Gene Names:  sufS, AM464_26295, AUQ13_12030, BANRA_00144, BANRA_00498, BUE81_02100, BvCms2454_03222, BvCmsHHP056_00376, BvCmsKKP036_02154, BvCmsKSP026_00913, BW690_21095, C2U48_26455, C3F40_02340, C5F72_12470, C5F73_16550, CA593_19565, CI694_12360, D0X26_02680, D3821_13970, D9D44_08095, D9I97_06950, D9J52_00990, DJ503_04985, DT034_04565, E2119_03595, E4K51_04160, E4K53_02750, E4K55_02210, EA213_01125, EAI52_07715, EC3234A_33c01830, ECTO6_02268, EEP23_12650, EI021_02920, EI041_09080, EIZ93_02005, EL75_1975, EL79_2015, ETECE1441_02263, ETECE925_02258, EYD11_10615, EYV18_16700, F1E19_09770, F9X20_017695, F9X20_17865, FKC84_00740, FRV13_11320, FV293_04975, G5688_08175, G5696_08550, GHD50_00995, GKF86_07510, GKF89_05190, GQE33_02870, GQE34_20940, GQE67_02970, GRW02_06095, GRW05_00495, GRW57_07250, GRW81_10520, H4P50_11345, H4P51_11710, HH707_000397, HLT96_01805, HLU13_01505, HMQ05_01935, HNN86_11820, HNO08_06140, HNV44_03825, HV065_07405, HVV53_04920, HVX22_10640, HVX24_10540, HVY79_11755, HVY93_10710, HVZ24_10295, HX136_13565, NCTC10429_03516, NCTC13148_01082, NCTC8500_02620, NCTC9045_02773, NCTC9062_00321, NCTC9073_05651, RK56_009090, SAMEA3472047_04360, SAMEA3472080_01352, SAMEA3484427_00841, SAMEA3484429_00952, SAMEA3752559_02324, SAMEA3753300_02697, SK85_01902, WP2S18E08_22360, WP7S17E04_19980 EC: 2.8.1.7 (PDB Primary Data), 4.4.1.16 (PDB Primary Data)
UniProt
Find proteins for P77444 (Escherichia coli (strain K12)) Explore P77444  Go to UniProtKB:  P77444

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PLP (Subject of Investigation/LOI)	C [auth A]	PYRIDOXAL-5'-PHOSPHATE C8 H10 N O6 P NGVDGCNFYWLIFO-UHFFFAOYSA-N
CL	B [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 0.231 
• R-Value Work: 0.206 
• R-Value Observed: 0.207 
• Space Group: P 4₃ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 127.15	α = 90
b = 127.15	β = 90
c = 133.27	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XSCALE	data scaling
PDB_EXTRACT	data extraction
XDS	data reduction
PHENIX	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-01-18 
Deposition Author(s): Dunkle, J.A., Gogar, R., Frantom, P.A.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	5R01GM112919

Revision History  

• Version 1.0: 2023-01-18
  Type: Initial release
  
• Version 1.1: 2023-10-25
  Changes: Data collection, Refinement description