» Articles » PMID: 20201080

Autocitrullination of Human Peptidyl Arginine Deiminase Type 4 Regulates Protein Citrullination During Cell Activation

Overview
Journal Arthritis Rheum
Specialty Rheumatology
Date 2010 Mar 5
PMID 20201080
Citations 61
Authors
Affiliations
Soon will be listed here.
Abstract

Objective: To address mechanisms that control the activity of human peptidyl arginine deiminase type 4 (PAD-4).

Methods: PAD-4 autocitrullination was determined by anti-modified citrulline immunoblotting, using purified recombinant and endogenous PAD-4 from activated human primary neutrophils and cell lines expressing PAD-4. The citrullination sites in PAD-4 were determined by mass spectrometry. Mechanisms of autocitrullination-induced inactivation and the functional consequences of autocitrullination in PAD-4 polymorphic variants were addressed using purified components and cell lines expressing PAD-4 wild-type, PAD-4 mutant, and PAD-4 polymorphic variants relevant to rheumatoid arthritis (RA).

Results: PAD-4 is autocitrullinated in vitro and during activation of primary cells and cell lines expressing PAD-4. Interestingly, this modification inactivated the function of the enzyme. The efficiency of inactivation differed among genetically defined PAD-4 variants relevant to RA. PAD-4 was citrullinated at 10 sites, which are clustered into 3 distinct regions, including a cluster of arginines around the active site cleft where Arg-372 and -374 were identified as the potential autocitrullination targets that inactivate the enzyme. Autocitrullination also modified the structure of PAD-4, abrogating its recognition by multiple rabbit antibodies, but augmenting its recognition by human anti-PAD-4 autoantibodies.

Conclusion: Our findings suggest that autocitrullination regulates the production of citrullinated proteins during cell activation, and that this is affected by structural polymorphisms in PAD-4. Autocitrullination also influences PAD-4 structure and immune response.

Citing Articles

Optogenetics with Atomic Precision─A Comprehensive Review of Optical Control of Protein Function through Genetic Code Expansion.

Charette M, Rosenblum C, Shade O, Deiters A Chem Rev. 2025; 125(4):1663-1717.

PMID: 39928721 PMC: 11869211. DOI: 10.1021/acs.chemrev.4c00224.


A cyclic peptide toolkit reveals mechanistic principles of peptidylarginine deiminase IV regulation.

Bertran M, Walmsley R, Cummings T, Aramburu I, Benton D, Mora Molina R Nat Commun. 2024; 15(1):9746.

PMID: 39528459 PMC: 11555231. DOI: 10.1038/s41467-024-53554-1.


Peptidyl Arginine Deiminases in Chronic Diseases: A Focus on Rheumatoid Arthritis and Interstitial Lung Disease.

Nava-Quiroz K, Lopez-Flores L, Perez-Rubio G, Rojas-Serrano J, Falfan-Valencia R Cells. 2023; 12(24).

PMID: 38132149 PMC: 10741699. DOI: 10.3390/cells12242829.


An unbiased proteomic analysis of PAD4 in human monocytes: novel substrates, binding partners and subcellular localizations.

Thomas M, Kim S, Curran A, Smith B, Antiochos B, Na C Philos Trans R Soc Lond B Biol Sci. 2023; 378(1890):20220477.

PMID: 37778379 PMC: 10542449. DOI: 10.1098/rstb.2022.0477.


Deimination in epidermal barrier and hair formation.

Mechin M, Simon M Philos Trans R Soc Lond B Biol Sci. 2023; 378(1890):20220245.

PMID: 37778378 PMC: 10542453. DOI: 10.1098/rstb.2022.0245.


References
1.
Hagiwara T, Nakashima K, Hirano H, Senshu T, Yamada M . Deimination of arginine residues in nucleophosmin/B23 and histones in HL-60 granulocytes. Biochem Biophys Res Commun. 2002; 290(3):979-83. DOI: 10.1006/bbrc.2001.6303. View

2.
Shirai H, Blundell T, Mizuguchi K . A novel superfamily of enzymes that catalyze the modification of guanidino groups. Trends Biochem Sci. 2001; 26(8):465-8. DOI: 10.1016/s0968-0004(01)01906-5. View

3.
Suzuki A, Yamada R, Chang X, Tokuhiro S, Sawada T, Suzuki M . Functional haplotypes of PADI4, encoding citrullinating enzyme peptidylarginine deiminase 4, are associated with rheumatoid arthritis. Nat Genet. 2003; 34(4):395-402. DOI: 10.1038/ng1206. View

4.
Vossenaar E, Zendman A, van Venrooij W, Pruijn G . PAD, a growing family of citrullinating enzymes: genes, features and involvement in disease. Bioessays. 2003; 25(11):1106-18. DOI: 10.1002/bies.10357. View

5.
Arita K, Hashimoto H, Shimizu T, Nakashima K, Yamada M, Sato M . Structural basis for Ca(2+)-induced activation of human PAD4. Nat Struct Mol Biol. 2004; 11(8):777-83. DOI: 10.1038/nsmb799. View