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Protein Name: E3 ubiquitin-protein ligase CHFR

UniprotKB/SwissProt ID: CHFR_HUMAN (Q96EP1)

Gene Name: CHFR

Synonyms: RNF196

Organism: Homo sapiens (Human).

Function: E3 ubiquitin-protein ligase that functions in the antephase checkpoint by actively delaying passage into mitosis in response to microtubule poisons. Acts in early prophase before chromosome condensation, when the centrosome move apart from each other along the periphery of the nucleus. Probably involved in signaling the presence of mitotic stress caused by microtubule poisons by mediating the 'Lys-48'-linked ubiquitination of target proteins, leading to their degradation by the proteasome. Promotes the ubiquitination and subsequent degradation of AURKA and PLK1. Probably acts as a tumor suppressor, possibly by mediating the polyubiquitination of HDAC1, leading to its degradation. May also promote the formation of 'Lys-63'-linked polyubiquitin chains and functions with the specific ubiquitin-conjugating UBC13-MMS2 (UBE2N-UBE2V2) heterodimer. Substrates that are polyubiquitinated at 'Lys-63' are usually not targeted for degradation, but are rather involved in signaling cellular stress.

Other Modifications: View all modification sites in dbPTM

Protein Subcellular Localization: Nucleus, PML body.

PDB :
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Graphical Visualization of Ubiquitination Sites:
Overview of Protein Ubiquitination Sites with Functional and Structural Information
InterPro ID Domain
IPR000253
IPR001841
IPR008984
IPR013083


The ubiquitination sites of CHFR_HUMAN

No. Position Ubiquitinated Peptide Secondary Structure Solvent Accessibility Substrate Motifs PubMed ID
1384SMDARN K ITQDML CCCCCC C CHHHHH 41.39%21768102
2393QDMLQP K VRRSFS HHHHCC C CCCCCC 35.10%2176810

The interacting network mediated by proteins: CHFR_HUMAN

Metabolic pathway:
Kegg map ID Pathway
map03008Ribosome biogenesis in eukaryotes