9U4E | pdb_00009u4e

Cryo-EM structure of the human CRP-CPS23F complex

PDB DOI: https://doi.org/10.2210/pdb9U4E/pdb
EM Map EMD-63844: EMDB EMDataResource

Classification: IMMUNE SYSTEM
Organism(s): Homo sapiens
Expression System: Homo sapiens
Mutation(s): No

Deposited: 2025-03-19 Released: 2025-09-24
Deposition Author(s): Chen, D.Y., Xie, Y.F., Gao, F., Qi, J.X., Zhang, J.R.
Funding Organization(s): National Natural Science Foundation of China (NSFC)

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 2.78 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 the human CRP-CPS23F complex

Chen, D.Y., Xie, Y.F., Gao, F., Qi, J.X., Zhang, J.R.

To be published.

Macromolecule Content

Total Structure Weight: 129.65 kDa
Atom Count: 8,425
Modeled Residue Count: 1,030
Deposited Residue Count: 1,120
Unique protein chains: 1

Macromolecules

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(by identity cutoff) | 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
C-reactive protein	A, B, C, D, E	224	Homo sapiens	Mutation(s): 0 Gene Names: CRP, PTX1
UniProt & NIH Common Fund Data Resources
Find proteins for P02741 (Homo sapiens) Explore P02741 Go to UniProtKB: P02741
PHAROS: P02741 GTEx: ENSG00000132693
Entity Groups
Sequence Clusters	30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt Group	P02741
Sequence Annotations Expand
Reference Sequence

Oligosaccharides

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Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
alpha-L-rhamnopyranose-(1-2)-1,3-bis(oxidanyl)propan-2-yl [(2~{R},3~{S},4~{S},5~{R})-2-(hydroxymethyl)-3,5,6-tris(oxidanyl)oxan-4-yl] hydrogen phosphate-(1-4)-beta-L-rhamnopyranose-(1-4)-beta-D-glucopyranose	F, G, H, I, J	4	N/A	N/A	Interactions Focus chain F Focus chain G Focus chain H Focus chain I Focus chain J Interactions & Density Focus chain F Focus chain G Focus chain H Focus chain I Focus chain J

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
CA (Subject of Investigation/LOI) Query on CA Download Ideal Coordinates CCD File SDF format, chain K [auth A] SDF format, chain L [auth A] SDF format, chain M [auth B] SDF format, chain N [auth B] SDF format, chain O [auth C] SDF format, chain P [auth C] SDF format, chain Q [auth D] SDF format, chain R [auth D] SDF format, chain S [auth E] SDF format, chain T [auth E] MOL2 format, chain K [auth A] MOL2 format, chain L [auth A] MOL2 format, chain M [auth B] MOL2 format, chain N [auth B] MOL2 format, chain O [auth C] MOL2 format, chain P [auth C] MOL2 format, chain Q [auth D] MOL2 format, chain R [auth D] MOL2 format, chain S [auth E] MOL2 format, chain T [auth E] mmCIF format, chain K [auth A] mmCIF format, chain L [auth A] mmCIF format, chain M [auth B] mmCIF format, chain N [auth B] mmCIF format, chain O [auth C] mmCIF format, chain P [auth C] mmCIF format, chain Q [auth D] mmCIF format, chain R [auth D] mmCIF format, chain S [auth E] mmCIF format, chain T [auth E]	K [auth A] L [auth A] M [auth B] N [auth B] O [auth C] K [auth A], L [auth A], M [auth B], N [auth B], O [auth C], P [auth C], Q [auth D], R [auth D], S [auth E], T [auth E]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N		Interactions Focus chain K [auth A] Focus chain L [auth A] Focus chain M [auth B] Focus chain N [auth B] Focus chain O [auth C] Focus chain P [auth C] Focus chain Q [auth D] Focus chain R [auth D] Focus chain S [auth E] Focus chain T [auth E] Interactions & Density Focus chain K [auth A] Focus chain L [auth A] Focus chain M [auth B] Focus chain N [auth B] Focus chain O [auth C] Focus chain P [auth C] Focus chain Q [auth D] Focus chain R [auth D] Focus chain S [auth E] Focus chain T [auth E]