9YA1 | pdb_00009ya1

Cryo-EM structure of intraconoidal microtubule 2 (ICMT2) from Toxoplasma gondii (8-nm repeat)

  • Classification: STRUCTURAL PROTEIN
  • Organism(s): Toxoplasma gondii
  • Mutation(s): No 

  • Deposited: 2025-09-15 Released: 2025-12-03 
  • Deposition Author(s): Zeng, J., Zhang, R.
  • Funding Organization(s): National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.52 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

Atomic models of the Toxoplasma cell invasion machinery

Zeng, J.Fu, Y.Qian, P.Niu, Q.Beatty, W.L.Brown, A.Sibley, L.D.Zhang, R.

(2025) Nat Struct Mol Biol 


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
ICMAP4, TGME49_225340A [auth 1],
B [auth 2]
2,041Toxoplasma gondiiMutation(s): 0 
UniProt
Find proteins for A0A086KM91 (Toxoplasma gondii GAB2-2007-GAL-DOM2)
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UniProt GroupA0A086KM91
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Microtubule associated protein SPM1351Toxoplasma gondiiMutation(s): 0 
UniProt
Find proteins for A0A7J6K285 (Toxoplasma gondii)
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UniProt GroupA0A7J6K285
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Tubulin alpha chain453Toxoplasma gondiiMutation(s): 0 
EC: 3.6.5
UniProt
Find proteins for P10873 (Toxoplasma gondii)
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UniProt GroupP10873
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
Tubulin beta chain449Toxoplasma gondiiMutation(s): 0 
UniProt
Find proteins for I7BFC9 (Toxoplasma gondii)
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UniProt GroupI7BFC9
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
TLAP3 (apical cap protein AC5), TGME49_235380NB [auth O],
OB [auth P],
PB [auth R]
583Toxoplasma gondiiMutation(s): 0 
UniProt
Find proteins for A0A151H4L4 (Toxoplasma gondii TgCatPRC2)
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UniProt GroupA0A151H4L4
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Entity ID: 6
MoleculeChains Sequence LengthOrganismDetailsImage
TLAP4 (thioredoxin-like associated protein), TGME49_201760QB [auth U],
RB [auth V],
SB [auth W],
TB [auth X]
336Toxoplasma gondiiMutation(s): 0 
UniProt
Find proteins for A0A7J6K913 (Toxoplasma gondii)
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Entity ID: 7
MoleculeChains Sequence LengthOrganismDetailsImage
TRXL1, TGME49_232410220Toxoplasma gondiiMutation(s): 0 
UniProt
Find proteins for Q8MPF4 (Toxoplasma gondii)
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Entity ID: 8
MoleculeChains Sequence LengthOrganismDetailsImage
TRXL2, TGME49_225790EC [auth k],
FC [auth l]
189Toxoplasma gondiiMutation(s): 0 
UniProt
Find proteins for A0A7J6K232 (Toxoplasma gondii)
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Small Molecules
Ligands 3 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
GTP (Subject of Investigation/LOI)
Query on GTP

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AE [auth C4]
BD [auth A6]
BF [auth E2]
DE [auth C6]
ED [auth A8]
AE [auth C4],
BD [auth A6],
BF [auth E2],
DE [auth C6],
ED [auth A8],
EF [auth E4],
GD [auth B0],
GE [auth C8],
ID [auth B2],
IF [auth E7],
JE [auth D0],
KF [auth E8],
LD [auth B4],
ME [auth D2],
NF [auth F0],
OD [auth B6],
PE [auth D4],
SC [auth A0],
SD [auth B8],
SE [auth D6],
UD [auth C0],
VE [auth D8],
WC [auth A2],
XD [auth C2],
YC [auth A4],
YE [auth E0]
GUANOSINE-5'-TRIPHOSPHATE
C10 H16 N5 O14 P3
XKMLYUALXHKNFT-UUOKFMHZSA-N
GDP (Subject of Investigation/LOI)
Query on GDP

Download Ideal Coordinates CCD File 
AD [auth A5]
AF [auth E1]
CE [auth C5]
DD [auth A7]
DF [auth E3]
AD [auth A5],
AF [auth E1],
CE [auth C5],
DD [auth A7],
DF [auth E3],
FE [auth C7],
GF [auth E5],
IE [auth C9],
JF [auth E7],
KD [auth B3],
LE [auth D1],
MF [auth E9],
ND [auth B5],
OE [auth D3],
PF [auth F1],
QD [auth B7],
QF [auth O],
RE [auth D5],
RF [auth P],
TD [auth B9],
UC [auth A1],
UE [auth D7],
WD [auth C1],
XC [auth A3],
XE [auth D9],
ZD [auth C3]
GUANOSINE-5'-DIPHOSPHATE
C10 H15 N5 O11 P2
QGWNDRXFNXRZMB-UUOKFMHZSA-N
MG (Subject of Investigation/LOI)
Query on MG

Download Ideal Coordinates CCD File 
BE [auth C4]
CD [auth A6]
CF [auth E2]
EE [auth C6]
FD [auth A8]
BE [auth C4],
CD [auth A6],
CF [auth E2],
EE [auth C6],
FD [auth A8],
FF [auth E4],
HD [auth B0],
HE [auth C9],
HF [auth E6],
JD [auth B2],
KE [auth D1],
LF [auth E8],
MD [auth B4],
NE [auth D3],
OF [auth F0],
PD [auth B6],
QE [auth D4],
RD [auth B8],
TC [auth A0],
TE [auth D6],
VC [auth A2],
VD [auth C0],
WE [auth D8],
YD [auth C2],
ZC [auth A4],
ZE [auth E0]
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.52 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
MODEL REFINEMENTPHENIX1.21.2_5419
RECONSTRUCTIONcryoSPARC

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)United StatesR01AI179885

Revision History  (Full details and data files)

  • Version 1.0: 2025-12-03
    Type: Initial release