34HF | pdb_000034hf

Crystal structure of human MATCAP2 (TMCP2)

PDB DOI: https://doi.org/10.2210/pdb34HF/pdb

Classification: PEPTIDE BINDING PROTEIN
Organism(s): Homo sapiens
Expression System: Escherichia coli BL21(DE3)
Mutation(s): No

Deposited: 2026-09-14 Released: 2026-11-11
Deposition Author(s): Guesdon, A., Simon, M., Quelin, N., Juge, F., Rogowski, K., le Maire, A.
Funding Organization(s): Agence Nationale de la Recherche (ANR), Fondation pour la Recherche Medicale (FRM)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.30 Å
R-Value Free:
0.271 (Depositor), 0.269 (DCC)
R-Value Work:
0.204 (Depositor), 0.204 (DCC)
R-Value Observed:
0.207 (Depositor)

Starting Model: in silico
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wwPDB Validation 3D Report Full Report

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

Literature

Crystal structure of human MATCAP2 (TMCP2)

Guesdon, A., Simon, M., Quelin, N., Juge, F., le Maire, A., Rogowski, K.

To be published.

Macromolecule Content

Total Structure Weight: 39.7 kDa
Atom Count: 2,796
Modeled Residue Count: 327
Deposited Residue Count: 340
Unique protein chains: 1

Macromolecules

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Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Isoform 5 of Putative tyrosine carboxypeptidase MATCAP2	A	340	Homo sapiens	Mutation(s): 0 Gene Names: MATCAP2, KIAA0895 EC: 3.4.17
UniProt & NIH Common Fund Data Resources
Find proteins for Q8NCT3 (Homo sapiens) Go to UniProtKB: Q8NCT3
PHAROS: Q8NCT3 GTEx: ENSG00000164542
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q8NCT3-5
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
ZN (Subject of Investigation/LOI) Query on ZN Download:Ideal Coordinates CCD File SDF format, chain B [auth A] MOL2 format, chain B [auth A] mmCIF format, chain B [auth A]	B [auth A]	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N		Interactions Focus chain B [auth A] Interactions & Density Focus chain B [auth A]

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 2.30 Å
R-Value Free: 0.271 (Depositor), 0.269 (DCC)
R-Value Work: 0.204 (Depositor), 0.204 (DCC)
R-Value Observed: 0.207 (Depositor)

Diffraction Data:

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 64.681	α = 90
b = 72.027	β = 90
c = 87.599	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
Aimless	data scaling
PHENIX	phasing
Coot	model building
PHENIX	model building

Structure Validation

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Entry History

& Funding Information

Deposition Data

Released Date: 2026-11-11

Deposition Author(s):

Funding Organization	Location	Grant Number
Agence Nationale de la Recherche (ANR)	France	ANR-24-CE44-5607-01
Fondation pour la Recherche Medicale (FRM)	France	EQU202403018057

Revision History (Full details and data files)

Version 1.0: 2026-11-11
Type: Initial release