8GT7

Structure of falcipain and human Stefin A mutant complex

• PDB DOI:  https://doi.org/10.2210/pdb8GT7/pdb

• Classification: HYDROLASE
• Organism(s): Plasmodium falciparum 3D7, Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2022-09-07 Released: 2023-09-13 
• Deposition Author(s): Chakraborty, S., Biswas, S.
• Funding Organization(s): Other government

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.28 Å
• R-Value Free: 0.300 
• R-Value Work: 0.272 
• R-Value Observed: 0.275 

Literature

Structure of falcipain and human Stefin A complex

Chakraborty, S., Biswas, S.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 6-mer - A2B2C1D1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 106.01 kDa 
• Atom Count: 7,507 
• Modelled Residue Count: 696 
• Deposited Residue Count: 696 
• Unique protein chains: 4

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Cysteine proteinase falcipain 2a	A, C	241	Plasmodium falciparum 3D7	Mutation(s): 0  Gene Names: PF3D7_1115700 EC: 3.4.22
UniProt
Find proteins for Q8I6U4 (Plasmodium falciparum (isolate 3D7)) Explore Q8I6U4  Go to UniProtKB:  Q8I6U4

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Cystatin-A	B, D	98	Homo sapiens	Mutation(s): 1  Gene Names: CSTA, STF1, STFA
UniProt & NIH Common Fund Data Resources
Find proteins for P01040 (Homo sapiens) Explore P01040  Go to UniProtKB:  P01040
PHAROS:  P01040

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
LYS-GLU-ILE-VAL-ASN-PRO-LEU-THR-LYS	E	9	Plasmodium falciparum 3D7	Mutation(s): 0

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
VAL-ASN-PRO-LEU-THR-LYS-LYS-GLY-GLU	F	9	Plasmodium falciparum 3D7	Mutation(s): 0

Small Molecules

Ligands 7 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PE8 (Subject of Investigation/LOI)	BC [auth B], CI [auth F], GI [auth F], JD [auth B], KD [auth B], LD [auth B], OF [auth C], UH [auth E], VA [auth A], VH [auth E], WA [auth A], XA [auth A]	3,6,9,12,15,18,21-HEPTAOXATRICOSANE-1,23-DIOL C16 H34 O9 GLZWNFNQMJAZGY-UHFFFAOYSA-N
PG4 (Subject of Investigation/LOI)	AA [auth A], AC [auth B], AF [auth C], AI [auth E], BA [auth A], BF [auth C], BI [auth F], CA [auth A], CE [auth B], CF [auth C], DA [auth A], DF [auth C], DG [auth D], EA [auth A], EF [auth C], FA [auth A], FB [auth A], FI [auth F], HE [auth C], PC [auth B], PF [auth C], QC [auth B], QG [auth D], QH [auth E], RB [auth A], RC [auth B], RG [auth D], RH [auth E], SB [auth A], SC [auth B], SG [auth D], SH [auth E], TB [auth A], TC [auth B], TG [auth D], UB [auth A], UC [auth B], UG [auth D], VB [auth A], VC [auth B], WC [auth B], XC [auth B], Y [auth A], YC [auth B], YE [auth C], Z [auth A], ZE [auth C], ZH [auth E]	TETRAETHYLENE GLYCOL C8 H18 O5 UWHCKJMYHZGTIT-UHFFFAOYSA-N
PEG (Subject of Investigation/LOI)	AD [auth B], AH [auth D], BD [auth B], BH [auth D], CD [auth B], CH [auth D], DD [auth B], DE [auth B], ED [auth B], EE [auth B], EG [auth D], FD [auth B], FE [auth B], FG [auth D], GB [auth A], GD [auth B], GF [auth C], HD [auth B], HF [auth C], IA [auth A], ID [auth B], IE [auth C], IF [auth C], JA [auth A], JF [auth C], KA [auth A], KF [auth C], LA [auth A], LF [auth C], MA [auth A], MD [auth B], MF [auth C], NA [auth A], NF [auth C], OA [auth A], PA [auth A], PD [auth B], QA [auth A], RA [auth A], SA [auth A], SF [auth C], TA [auth A], UA [auth A], VG [auth D], WB [auth A], WG [auth D], XB [auth A], XG [auth D], YB [auth A], YG [auth D], ZA [auth A], ZC [auth B], ZF [auth C], ZG [auth D]	DI(HYDROXYETHYL)ETHER C4 H10 O3 MTHSVFCYNBDYFN-UHFFFAOYSA-N
SO4	FF [auth C], GA [auth A], GE [auth C], HA [auth A], TH [auth E]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
GOL (Subject of Investigation/LOI)	AB [auth A], AE [auth B], AG [auth C], BE [auth B], CC [auth B], DC [auth B], DI [auth F], EC [auth B], FC [auth B], FH [auth D], G [auth A], GC [auth B], GG [auth D], H [auth A], HC [auth B], HG [auth D], I [auth A], IC [auth B], IG [auth D], J [auth A], JC [auth B], JE [auth C], JG [auth D], K [auth A], KC [auth B], KE [auth C], KG [auth D], L [auth A], LC [auth B], LE [auth C], LG [auth D], LH [auth D], M [auth A], ME [auth C], MG [auth D], N [auth A], ND [auth B], NE [auth C], NG [auth D], NH [auth E], O [auth A], OB [auth A], OE [auth C], OH [auth E], P [auth A], PB [auth A], PE [auth C], PH [auth E], Q [auth A], QB [auth A], QE [auth C], QF [auth C], R [auth A], RE [auth C], RF [auth C], S [auth A], SE [auth C], T [auth A], TE [auth C], XF [auth C], YA [auth A], YF [auth C], YH [auth E], ZB [auth A], ZD [auth B]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
EDO (Subject of Investigation/LOI)	BG [auth D], CG [auth D], EB [auth A], EH [auth D], MH [auth E], QD [auth B], RD [auth B], WH [auth E]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N
NA	BB [auth A], CB [auth A], DB [auth A], DH [auth D], EI [auth F], GH [auth D], HB [auth A], HH [auth D], HI [auth F], IB [auth A], IH [auth D], JB [auth A], JH [auth D], KB [auth A], KH [auth D], LB [auth A], MB [auth A], MC [auth B], NB [auth A], NC [auth B], OC [auth B], OD [auth B], OG [auth D], PG [auth D], SD [auth B], TD [auth B], TF [auth C], U [auth A], UD [auth B], UE [auth C], UF [auth C], V [auth A], VD [auth B], VE [auth C], VF [auth C], W [auth A], WD [auth B], WE [auth C], WF [auth C], X [auth A], XD [auth B], XE [auth C], XH [auth E], YD [auth B]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.28 Å
• R-Value Free: 0.300 
• R-Value Work: 0.272 
• R-Value Observed: 0.275 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 118.461	α = 90
b = 119.62	β = 90
c = 65.016	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XDS	data scaling
MOLREP	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-09-13 
Deposition Author(s): Chakraborty, S., Biswas, S.

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Funding Organization	Location	Grant Number
Other government	India	--

Revision History  

• Version 1.0: 2023-09-13
  Type: Initial release