9K9N | pdb_00009k9n

Cryo-EM structure of MjHKU4r-CoV-1 receptor-binding domain complexed with human CD26

PDB DOI: https://doi.org/10.2210/pdb9K9N/pdb
EM Map EMD-62194: EMDB EMDataResource

Classification: VIRAL PROTEIN/HYDROLASE
Organism(s): Homo sapiens, Tylonycteris bat coronavirus HKU4
Expression System: Homo sapiens
Mutation(s): No

Deposited: 2024-10-27 Released: 2025-09-03
Deposition Author(s): Sun, J.Q.
Funding Organization(s): Chinese Academy of Sciences

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 2.61 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

Rational design of human CD26 receptor for a strong neutralizing ability against MjHKU4r-CoV-1 and MERS-CoV

Zhang, Y., Tian, M., Han, Y., Sun, J., Li, W., Bai, C., Su, C., Han, P.

(2025) Hlife

DOI: https://doi.org/10.1016/j.hlife.2025.05.005

Macromolecule Content

Total Structure Weight: 207.89 kDa
Atom Count: 13,840
Modeled Residue Count: 1,657
Deposited Residue Count: 1,763
Unique protein chains: 2

Macromolecules

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(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Dipeptidyl peptidase 4 soluble form	A, B	766	Homo sapiens	Mutation(s): 0 Gene Names: DPP4, ADCP2, CD26 EC: 3.4.14.5
UniProt & NIH Common Fund Data Resources
Find proteins for P27487 (Homo sapiens) Explore P27487 Go to UniProtKB: P27487
PHAROS: P27487 GTEx: ENSG00000197635
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P27487
Glycosylation
Glycosylation Sites: 8	Glycosylation Focus chain A Focus chain B	Go to GlyGen: P27487-1
Sequence Annotations Expand
Reference Sequence

Find similar proteins by:

(by identity cutoff) | 3D Structure

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Spike protein S1	C	231	Tylonycteris bat coronavirus HKU4	Mutation(s): 0
UniProt
Find proteins for A3EX94 (Bat coronavirus HKU4) Explore A3EX94 Go to UniProtKB: A3EX94
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	A3EX94
Sequence Annotations Expand
Reference Sequence

Oligosaccharides

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Entity ID: 3
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	D, E, F, I	2		N-Glycosylation	Interactions Focus chain D Focus chain E Focus chain F Focus chain I Interactions & Density Focus chain D Focus chain E Focus chain F Focus chain I
Glycosylation Resources
GlyTouCan: G42666HT GlyCosmos: G42666HT GlyGen: G42666HT

Entity ID: 4
Molecule	Chains	Length	2D Diagram	Glycosylation	3D 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	G	5		N-Glycosylation	Interactions Focus chain G Interactions & Density Focus chain G
Glycosylation Resources
GlyTouCan: G42227JK GlyCosmos: G42227JK GlyGen: G42227JK

Entity ID: 5
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose	H	3		N-Glycosylation	Interactions Focus chain H Interactions & Density Focus chain H
Glycosylation Resources
GlyTouCan: G21290RB GlyCosmos: G21290RB GlyGen: G21290RB

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
NAG (Subject of Investigation/LOI) Query on NAG Download Ideal Coordinates CCD File SDF format, chain S [auth B] SDF format, chain R [auth B] SDF format, chain Q [auth B] SDF format, chain P [auth B] SDF format, chain O [auth A] SDF format, chain N [auth A] SDF format, chain M [auth A] SDF format, chain L [auth A] SDF format, chain K [auth A] SDF format, chain J [auth A] MOL2 format, chain S [auth B] MOL2 format, chain R [auth B] MOL2 format, chain Q [auth B] MOL2 format, chain P [auth B] MOL2 format, chain O [auth A] MOL2 format, chain N [auth A] MOL2 format, chain M [auth A] MOL2 format, chain L [auth A] MOL2 format, chain K [auth A] MOL2 format, chain J [auth A] mmCIF format, chain S [auth B] mmCIF format, chain R [auth B] mmCIF format, chain Q [auth B] mmCIF format, chain P [auth B] mmCIF format, chain O [auth A] mmCIF format, chain N [auth A] mmCIF format, chain M [auth A] mmCIF format, chain L [auth A] mmCIF format, chain K [auth A] mmCIF format, chain J [auth A]	J [auth A] K [auth A] L [auth A] M [auth A] N [auth A] J [auth A], K [auth A], L [auth A], M [auth A], N [auth A], O [auth A], P [auth B], Q [auth B], R [auth B], S [auth B]	2-acetamido-2-deoxy-beta-D-glucopyranose C₈ H₁₅ N O₆ OVRNDRQMDRJTHS-FMDGEEDCSA-N		Interactions Focus chain J [auth A] Focus chain K [auth A] Focus chain L [auth A] Focus chain M [auth A] Focus chain N [auth A] Focus chain O [auth A] Focus chain P [auth B] Focus chain Q [auth B] Focus chain R [auth B] Focus chain S [auth B] Interactions & Density Focus chain J [auth A] Focus chain K [auth A] Focus chain L [auth A] Focus chain M [auth A] Focus chain N [auth A] Focus chain O [auth A] Focus chain P [auth B] Focus chain Q [auth B] Focus chain R [auth B] Focus chain S [auth B]