Javascript is not enabled on this browser. This site will not work properly without Javascript.
PhosphoSitePlus Homepage Cell Signaling Technology
Home | Login
About PhosphoSiteUsing PhosphoSiteprivacy & cookiesCuration ProcessContact
logos LINCs Logo Mt Sinai Logo NIH Logo NCI Logo
Search / Browse Functions
Protein Page:

SKP1A Essential component of the SCF (SKP1-CUL1-F-box protein) ubiquitin ligase complex, which mediates the ubiquitination of proteins involved in cell cycle progression, signal transduction and transcription. In the SCF complex, serves as an adapter that links the F-box protein to CUL1. SCF(BTRC) mediates the ubiquitination of NFKBIA at 'Lys-21' and 'Lys-22'; the degradation frees the associated NFKB1-RELA dimer to translocate into the nucleus and to activate transcription. SCF(Cyclin F) directs ubiquitination of CP110. Component of an E3 ubiquitin ligase complex containing UBE2D1, SIAH1, CACYBP/SIP, SKP1, APC and TBL1X. Component of the SCF(BTRC) complex, composed of SKP1, CUL1 and BTRC. Part of a SCF(BTRC)-like complex lacking CUL1, which is associated with phosphorylated NFKBIA and RELA; RELA interacts directly with NFKBIA. Component of the SCF(FBXO44) complex, composed of SKP1, CUL1 and FBXO44. Identified in a complex with SKP2, CKS1B and p27Kip1. Interacts with the cyclin A/CDK2 complex. Part of a SCF- like complex consisting of CUL7, RBX1, SKP1 and FBXW8. Part of several SCF complexes containing SKP1 and one of the F-box proteins. Component of a SCF(SKP2)-like complex containing CUL1, SKP1, TRIM21 and SKP2. Interacts with FBXO2, FBXO4, FBXW7 and TRIM21. Interacts with FBXO45. Component of the SCF(FBXO17) complex, composed of SKP1, CUL1 and FBXO17. Component of the SCF(FBXO27) complex, composed of SKP1, CUL1 and FBXO27. Component of the SCF(Cyclin F) complex consisting of CUL1, RBX1, SKP1 and CCNF. Belongs to the SKP1 family. 2 isoforms of the human protein are produced by alternative splicing. Note: This description may include information from UniProtKB.
Protein type: Cell cycle regulation; Ubiquitin conjugating system
Chromosomal Location of Human Ortholog: 5q31.1
Cellular Component: cytoplasm; cytosol; nucleoplasm; nucleus; PcG protein complex; SCF ubiquitin ligase complex
Molecular Function: beta-catenin binding; protein binding; protein domain specific binding; ubiquitin-protein ligase activity
Biological Process: cellular iron ion homeostasis; G2/M transition of mitotic cell cycle; maintenance of protein localization in nucleus; positive regulation of ubiquitin-protein ligase activity during mitotic cell cycle; post-translational protein modification; proteasomal ubiquitin-dependent protein catabolic process; protein polyubiquitination; protein ubiquitination; SCF complex assembly; SCF-dependent proteasomal ubiquitin-dependent protein catabolic process; stimulatory C-type lectin receptor signaling pathway; stress-activated MAPK cascade; T cell receptor signaling pathway; Wnt receptor signaling pathway
Reference #:  P63208 (UniProtKB)
Alt. Names/Synonyms: cyclin A/CDK2-associated p19; cyclin A/CDK2-associated protein p19; Cyclin-A/CDK2-associated protein p19; EMC19; MGC34403; OCP-2; OCP-II; OCP2; Organ of Corti protein 2; Organ of Corti protein II; p19A; p19skp1; RNA polymerase II elongation factor-like protein; RNA polymerase II elongation factor-like protein OCP2; S-phase kinase-associated protein 1; SIII; SKP1; SKP1A; TCEB1L; Transcription elongation factor B; transcription elongation factor B (SIII), polypeptide 1-like
Gene Symbols: SKP1
Molecular weight: 18,658 Da
Basal Isoelectric point: 4.4  Predict pI for various phosphorylation states
Protein-Specific Antibodies or siRNAs from Cell Signaling Technology® Total Proteins
Select Structure to View Below


Protein Structure Not Found.
Download PyMol Script
Download ChimeraX Script

STRING  |  cBioPortal  |  Wikipedia  |  Reactome  |  neXtProt  |  Protein Atlas  |  BioGPS  |  Scansite  |  Pfam  |  RCSB PDB  |  Phospho3D  |  Phospho.ELM  |  NetworKIN  |  UniProtKB  |  Entrez-Gene  |  GenPept  |  Ensembl Gene  |  Ensembl Protein