9Q09 | pdb_00009q09

Cryo-EM structure of PGT121 Fab and Rhesus macaque Ab76 Fab in complex with HIV-1 Env trimer BG505 SOSIP.664

PDB DOI: https://doi.org/10.2210/pdb9Q09/pdb
EM Map EMD-72094: EMDB EMDataResource

Classification: VIRAL PROTEIN
Organism(s): Human immunodeficiency virus 1, Macaca mulatta, Homo sapiens
Expression System: Homo sapiens
Mutation(s): Yes

Deposited: 2025-08-12 Released: 2026-05-27
Deposition Author(s): Chandravanshi, M., Tolbert, W.D., Pazgier, M.
Funding Organization(s): National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 3.23 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

wwPDB Validation 3D Report Full Report

This is version 1.0 of the entry. See complete history.

Literature

Cryo-EM structure of PGT121 Fab and Rhesus macaque Ab76 Fab in complex with HIV-1 Env trimer BG505 SOSIP.664

Chandravanshi, M., Tolbert, W.D., Pazgier, M.

To be published.

Macromolecule Content

Total Structure Weight: 535 kDa
Atom Count: 26,930
Modeled Residue Count: 3,182
Deposited Residue Count: 4,602
Unique protein chains: 6

Macromolecules

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| 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
BG505 SOSIP.664 gp120	A, F [auth G], H [auth I]	481	Human immunodeficiency virus 1	Mutation(s): 2 Gene Names: env
UniProt
Find proteins for Q2N0S5 (Human immunodeficiency virus type 1) Explore Q2N0S5 Go to UniProtKB: Q2N0S5
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q2N0S5
Glycosylation
Glycosylation Sites: 19	Glycosylation Focus chain A Focus chain F [auth G] Focus chain H [auth I]
Sequence Annotations Expand
Reference Sequence

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| 3D Structure

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
BG505 SOSIP.664 gp41	B, C, I [auth J]	153	Human immunodeficiency virus 1	Mutation(s): 0 Gene Names: env
UniProt
Find proteins for Q2N0S5 (Human immunodeficiency virus type 1) Explore Q2N0S5 Go to UniProtKB: Q2N0S5
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q2N0S5
Glycosylation
Glycosylation Sites: 2	Glycosylation Focus chain B Focus chain C
Sequence Annotations Expand
Reference Sequence

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| 3D Structure

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Ab76 Fab heavy chain	D, G [auth H], J [auth K]	230	Macaca mulatta	Mutation(s): 0

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| 3D Structure

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
Ab76 Fab light chain	E, K [auth L], L [auth M]	222	Macaca mulatta	Mutation(s): 0

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| 3D Structure

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
PGT121 Fab heavy chain	M [auth h], O [auth d], Q [auth k]	235	Homo sapiens	Mutation(s): 0

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| 3D Structure

Entity ID: 6
Molecule	Chains	Sequence Length	Organism	Details	Image
PGT121 Fab light chain	N [auth l], P [auth e], R [auth m]	213	Homo sapiens	Mutation(s): 0

Oligosaccharides

Help

Entity ID: 7
Molecule	Chains	Length	2D Diagram	Glycosylation	D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	AB [auth 0], BB [auth 1], CB [auth 2], DB [auth 3], EB [auth 4], AB [auth 0], BB [auth 1], CB [auth 2], DB [auth 3], EB [auth 4], FB [auth 5], GB [auth 6], HB [auth 7], IB [auth 8], JB [auth 9], KA [auth z], LA [auth v], MA [auth n], NA [auth o], OA [auth p], PA [auth q], QA [auth r], S [auth F], SA [auth x], TA [auth a], UA [auth b], VA [auth c], WA [auth f], XA [auth g], YA [auth i], ZA [auth j]	2		N-Glycosylation	Interactions Focus chain AB [auth 0] Focus chain BB [auth 1] Focus chain CB [auth 2] Focus chain DB [auth 3] Focus chain EB [auth 4] Focus chain FB [auth 5] Focus chain GB [auth 6] Focus chain HB [auth 7] Focus chain IB [auth 8] Focus chain JB [auth 9] Focus chain KA [auth z] Focus chain LA [auth v] Focus chain MA [auth n] Focus chain NA [auth o] Focus chain OA [auth p] Focus chain PA [auth q] Focus chain QA [auth r] Focus chain S [auth F] Focus chain SA [auth x] Focus chain TA [auth a] Focus chain UA [auth b] Focus chain VA [auth c] Focus chain WA [auth f] Focus chain XA [auth g] Focus chain YA [auth i] Focus chain ZA [auth j] Interactions & Density Focus chain AB [auth 0] Focus chain BB [auth 1] Focus chain CB [auth 2] Focus chain DB [auth 3] Focus chain EB [auth 4] Focus chain FB [auth 5] Focus chain GB [auth 6] Focus chain HB [auth 7] Focus chain IB [auth 8] Focus chain JB [auth 9] Focus chain KA [auth z] Focus chain LA [auth v] Focus chain MA [auth n] Focus chain NA [auth o] Focus chain OA [auth p] Focus chain PA [auth q] Focus chain QA [auth r] Focus chain S [auth F] Focus chain SA [auth x] Focus chain TA [auth a] Focus chain UA [auth b] Focus chain VA [auth c] Focus chain WA [auth f] Focus chain XA [auth g] Focus chain YA [auth i] Focus chain ZA [auth j]
Glycosylation Resources
GlyTouCan: G42666HT GlyCosmos: G42666HT GlyGen: G42666HT

Entity ID: 8
Molecule	Chains	Length	2D Diagram	Glycosylation	D Interactions
alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	AA [auth Z], DA [auth U], FA [auth W], T [auth N], U [auth O], AA [auth Z], DA [auth U], FA [auth W], T [auth N], U [auth O], W [auth Q]	4		N-Glycosylation	Interactions Focus chain AA [auth Z] Focus chain DA [auth U] Focus chain FA [auth W] Focus chain T [auth N] Focus chain U [auth O] Focus chain W [auth Q] Interactions & Density Focus chain AA [auth Z] Focus chain DA [auth U] Focus chain FA [auth W] Focus chain T [auth N] Focus chain U [auth O] Focus chain W [auth Q]
Glycosylation Resources
GlyTouCan: G81315DD GlyCosmos: G81315DD GlyGen: G81315DD

Entity ID: 9
Molecule	Chains	Length	2D Diagram	Glycosylation	D Interactions
alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	BA [auth S], CA [auth T], V [auth P], X [auth R]	6		N-Glycosylation	Interactions Focus chain BA [auth S] Focus chain CA [auth T] Focus chain V [auth P] Focus chain X [auth R] Interactions & Density Focus chain BA [auth S] Focus chain CA [auth T] Focus chain V [auth P] Focus chain X [auth R]
Glycosylation Resources
GlyTouCan: G56014GC GlyCosmos: G56014GC GlyGen: G56014GC

Entity ID: 10
Molecule	Chains	Length	2D Diagram	Glycosylation	D Interactions
alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	IA [auth u], RA [auth w], Y [auth X]	9		N-Glycosylation	Interactions Focus chain IA [auth u] Focus chain RA [auth w] Focus chain Y [auth X] Interactions & Density Focus chain IA [auth u] Focus chain RA [auth w] Focus chain Y [auth X]
Glycosylation Resources
GlyTouCan: G68668TB GlyCosmos: G68668TB GlyGen: G68668TB

Entity ID: 11
Molecule	Chains	Length	2D Diagram	Glycosylation	D Interactions
alpha-D-mannopyranose-(1-3)-alpha-D-mannopyranose-(1-6)-[alpha-D-mannopyranose-(1-3)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	GA [auth s], JA [auth y], Z [auth Y]	6		N-Glycosylation	Interactions Focus chain GA [auth s] Focus chain JA [auth y] Focus chain Z [auth Y] Interactions & Density Focus chain GA [auth s] Focus chain JA [auth y] Focus chain Z [auth Y]
Glycosylation Resources
GlyTouCan: G09724ZC GlyCosmos: G09724ZC GlyGen: G09724ZC

Entity ID: 12
Molecule	Chains	Length	2D Diagram	Glycosylation	D Interactions
alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	EA [auth V]	5		N-Glycosylation	Interactions Focus chain EA [auth V] Interactions & Density Focus chain EA [auth V]
Glycosylation Resources
GlyTouCan: G42227JK GlyCosmos: G42227JK GlyGen: G42227JK

Entity ID: 13
Molecule	Chains	Length	2D Diagram	Glycosylation	D Interactions
alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	HA [auth t]	5		N-Glycosylation	Interactions Focus chain HA [auth t] Interactions & Density Focus chain HA [auth t]
Glycosylation Resources
GlyTouCan: G22768VO GlyCosmos: G22768VO GlyGen: G22768VO

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
NAG Query on NAG Download:Ideal Coordinates CCD File SDF format, chain AC [auth I] SDF format, chain KB [auth A] SDF format, chain LB [auth A] SDF format, chain MB [auth A] SDF format, chain NB [auth A] SDF format, chain OB [auth B] SDF format, chain PB [auth B] SDF format, chain QB [auth C] SDF format, chain RB [auth C] SDF format, chain SB [auth G] SDF format, chain TB [auth G] SDF format, chain UB [auth G] SDF format, chain VB [auth G] SDF format, chain WB [auth I] SDF format, chain XB [auth I] SDF format, chain YB [auth I] SDF format, chain ZB [auth I] MOL2 format, chain AC [auth I] MOL2 format, chain KB [auth A] MOL2 format, chain LB [auth A] MOL2 format, chain MB [auth A] MOL2 format, chain NB [auth A] MOL2 format, chain OB [auth B] MOL2 format, chain PB [auth B] MOL2 format, chain QB [auth C] MOL2 format, chain RB [auth C] MOL2 format, chain SB [auth G] MOL2 format, chain TB [auth G] MOL2 format, chain UB [auth G] MOL2 format, chain VB [auth G] MOL2 format, chain WB [auth I] MOL2 format, chain XB [auth I] MOL2 format, chain YB [auth I] MOL2 format, chain ZB [auth I] mmCIF format, chain AC [auth I] mmCIF format, chain KB [auth A] mmCIF format, chain LB [auth A] mmCIF format, chain MB [auth A] mmCIF format, chain NB [auth A] mmCIF format, chain OB [auth B] mmCIF format, chain PB [auth B] mmCIF format, chain QB [auth C] mmCIF format, chain RB [auth C] mmCIF format, chain SB [auth G] mmCIF format, chain TB [auth G] mmCIF format, chain UB [auth G] mmCIF format, chain VB [auth G] mmCIF format, chain WB [auth I] mmCIF format, chain XB [auth I] mmCIF format, chain YB [auth I] mmCIF format, chain ZB [auth I]	AC [auth I] KB [auth A] LB [auth A] MB [auth A] NB [auth A] AC [auth I], KB [auth A], LB [auth A], MB [auth A], NB [auth A], OB [auth B], PB [auth B], QB [auth C], RB [auth C], SB [auth G], TB [auth G], UB [auth G], VB [auth G], WB [auth I], XB [auth I], YB [auth I], ZB [auth I]	2-acetamido-2-deoxy-beta-D-glucopyranose C₈ H₁₅ N O₆ OVRNDRQMDRJTHS-FMDGEEDCSA-N		Interactions Focus chain AC [auth I] Focus chain KB [auth A] Focus chain LB [auth A] Focus chain MB [auth A] Focus chain NB [auth A] Focus chain OB [auth B] Focus chain PB [auth B] Focus chain QB [auth C] Focus chain RB [auth C] Focus chain SB [auth G] Focus chain TB [auth G] Focus chain UB [auth G] Focus chain VB [auth G] Focus chain WB [auth I] Focus chain XB [auth I] Focus chain YB [auth I] Focus chain ZB [auth I] Interactions & Density Focus chain AC [auth I] Focus chain KB [auth A] Focus chain LB [auth A] Focus chain MB [auth A] Focus chain NB [auth A] Focus chain OB [auth B] Focus chain PB [auth B] Focus chain QB [auth C] Focus chain RB [auth C] Focus chain SB [auth G] Focus chain TB [auth G] Focus chain UB [auth G] Focus chain VB [auth G] Focus chain WB [auth I] Focus chain XB [auth I] Focus chain YB [auth I] Focus chain ZB [auth I]

Experimental Data & Validation

Experimental Data

Method: ELECTRON MICROSCOPY
Resolution: 3.23 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.21.2_5419
RECONSTRUCTION	cryoSPARC

Structure Validation

View Full Validation Report

View more in-depth experimental data

Entry History

& Funding Information

Deposition Data

Released Date: 2026-05-27

Deposition Author(s):

Chandravanshi, M.

Tolbert, W.D.

Pazgier, M.

Funding Organization	Location	Grant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)	United States	R01AI174979

Revision History (Full details and data files)

Version 1.0: 2026-05-27
Type: Initial release

9Q09 | pdb_00009q09

Cryo-EM structure of PGT121 Fab and Rhesus macaque Ab76 Fab in complex with HIV-1 Env trimer BG505 SOSIP.664

Literature

Cryo-EM structure of PGT121 Fab and Rhesus macaque Ab76 Fab in complex with HIV-1 Env trimer BG505 SOSIP.664

Biological Assembly 1

Macromolecules

Entity ID: 1

UniProt

Entity Groups

Glycosylation

Sequence Annotations

Expand

Entity ID: 2

UniProt

Entity Groups

Glycosylation

Sequence Annotations

Expand

Entity ID: 3

Entity ID: 4

Entity ID: 5

Entity ID: 6

Oligosaccharides

Entity ID: 7

Glycosylation Resources

Entity ID: 8

Glycosylation Resources

Entity ID: 9

Glycosylation Resources

Entity ID: 10

Glycosylation Resources

Entity ID: 11

Glycosylation Resources

Entity ID: 12

Glycosylation Resources

Entity ID: 13

Glycosylation Resources

Small Molecules

Experimental Data & Validation

Experimental Data

Structure Validation

Entry History

Deposition Data

Revision History (Full details and data files)