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Overview

Uniprot IDP05114
Protein NameNon-histone chromosomal protein HMG-14
Gene NameHMGN1
OrganismHomo sapiens

Kla Sites from experimental identification

Position Flanking peptide
14 SSAEGAAKEEPKRRS
18 GAAKEEPKRRSARLS
31 LSAKPPAKVEAKPKK
5 ***MPKRKVSSAEGA
61 GKRGAKGKQAEVANQ

Function

Binds to the inner side of the nucleosomal DNA thus altering the interaction between the DNA and the histone octamer. May be involved in the process which maintains transcribable genes in a unique chromatin conformation. Inhibits the phosphorylation of nucleosomal histones H3 and H2A by RPS6KA5/MSK1 and RPS6KA3/RSK2 (By similarity)

Protein Sequence

10 MPKRKVSSAE 20 GAAKEEPKRR 30 SARLSAKPPA 40 KVEAKPKKAA 50 AKDKSSDKKV 60 QTKGKRGAKG 70 KQAEVANQET 80 KEDLPAENGE 90 TKTEESPASD 100 EAGEKEAKSD

Gene Ontology

Classification GO ID Description
Cellular Component GO:0000785 chromatin
Cellular Component GO:0005737 cytoplasm
Cellular Component GO:0005654 nucleoplasm
Cellular Component GO:0005634 nucleus
Molecular Function GO:0003682 chromatin binding
Molecular Function GO:0003677 DNA binding
Molecular Function GO:0031492 nucleosomal DNA binding
Biological Process GO:0006325 chromatin organization
Biological Process GO:0032786 positive regulation of DNA-templated transcription, elongation

Reference

[1] Yang D, Yin J, Shan L, Yi X, Zhang W et al.. Identification of lysine-lactylated substrates in gastric cancer cells.. iScience 25(7):104630. 2022 Jul 15. PMID: 35800753.

[2] Hong H, Chen X, Wang H, Gu X, Yuan Y et al.. Global profiling of protein lysine lactylation and potential target modified protein analysis in hepatocellular carcinoma.. Proteomics 23(9):e2200432. 2023 May. PMID: 36625413.

[3] Yang YH, Wang QC, Kong J, Yang JT, Liu JF. Global profiling of lysine lactylation in human lungs.. Proteomics 23(15):e2200437. 2023 Aug. PMID: 37170646.

[4] Cheng Z, Huang H, Li M, Chen Y. Proteomic analysis identifies PFKP lactylation in SW480 colon cancer cells.. iScience 27(1):108645. 2024 Jan 19. PMID: 38155775.

[5] He C, Zhang J, Bai X, Lu C, Zhang K. Lysine lactylation-based insight to understanding the characterization of cervical cancer.. Biochim Biophys Acta Mol Basis Dis 1870(7):167356. 2024 Oct. PMID: 39025375.

[6] Bao Q, Wan N, He Z, Cao J, Yuan W et al.. Subcellular Proteomic Mapping of Lysine Lactylation.. J Am Soc Mass Spectrom 35(12):3221-3232. 2024 Dec 4. PMID: 39569522.

[7] Guo X, Ren X, Yan C, Huang H. Quantitative Proteomics Reveals the Role of Lysine Lactylation in Lenalidomide-Resistance in Multiple Myeloma Cells.. ACS Chem Biol 20(7):1728-1738. 2025 Jul 18. PMID: 40590393.

[8] Wu Q, Li Z, Gong T, Zheng X, Zhou X et al.. Porphyromonas gingivalis infection induces lysine lactylation reprogramming in human umbilical vein endothelial cells.. Front Cell Infect Microbiol 16:1706727. 2026. PMID: 41696360.