9XC1 | pdb_00009xc1

Structure of AIIMS 44m bnAbs with AIIMS 330.v7 trimer

• PDB DOI: https://doi.org/10.2210/pdb9XC1/pdb
• EM Map EMD-66717: EMDB EMDataResource

• Classification: VIRAL PROTEIN
• Organism(s): Homo sapiens
• Expression System: Homo sapiens
• Mutation(s): No 


• Deposited: 2025-10-24 Released: 2026-10-21 
• Deposition Author(s): Singh, S., Chatterjee, A., Dutta, S., Luthra, K.
• Funding Organization(s): Department of Biotechnology (DBT, India), Department of Science & Technology (DST, India), Science and Engineering Research Board (SERB)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 5.08 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Recognition determinants of broad and potent HIV-1 neutralization by an affinity matured antibody from a pediatric elite-neutralizer

Singh, S., Chatterjee, A., Dutta, S., Luthra, K.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C3  (Explore in 3D)
Global Stoichiometry: Hetero 9-mer - A3B3C3 

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

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 355.03 kDa 
• Atom Count: 24,930 
• Modeled Residue Count: 3,222 
• Deposited Residue Count: 3,222 
• Unique protein chains: 3

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Heavy chain of 44m Ab	A [auth F], C [auth H], E [auth I]	231	Homo sapiens	Mutation(s): 0

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Light chain of 44m Ab	B [auth D], D [auth E], F [auth G]	212	Homo sapiens	Mutation(s): 0

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
AIIMS 330.v7 trimer	G [auth C], H [auth A], I [auth B]	631	Homo sapiens	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 5.08 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
RECONSTRUCTION	cryoSPARC

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-10-21 
Deposition Author(s): Singh, S., Chatterjee, A., Dutta, S., Luthra, K.

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Funding Organization	Location	Grant Number
Department of Biotechnology (DBT, India)	India	BT/PR2450/MED/29/1222/2017
Department of Biotechnology (DBT, India)	India	BT/PR30120/MED/29/1339/2018
Department of Biotechnology (DBT, India)	India	BT/INF/22/SP22/844/2107
Department of Science & Technology (DST, India)	India	SR/FST/LSII-039/2015
Science and Engineering Research Board (SERB)	India	SERB-EMR/2016/000608, SERB-IPA/2020/000094
Department of Biotechnology (DBT, India)	India	IA/E/18/1/504307

Revision History  

• Version 1.0: 2026-10-21
  Type: Initial release