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Protein

S-phase kinase-associated protein 1

Gene

SKP1

Organism
Bos taurus (Bovine)
Status
Reviewed-Annotation score: -Experimental evidence at transcript leveli

Functioni

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. The functional specificity of the SCF complex depends on the F-box protein as substrate recognition component. SCF(BTRC) and SCF(FBXW11) direct ubiquitination of CTNNB1 and participate in Wnt signaling. SCF(FBXW11) directs ubiquitination of phosphorylated NFKBIA. SCF(BTRC) directs ubiquitination of NFKBIB, NFKBIE, ATF4, SMAD3, SMAD4, CDC25A, FBXO5, CEP68 and probably NFKB2. SCF(SKP2) directs ubiquitination of phosphorylated CDKN1B/p27kip and is involved in regulation of G1/S transition. SCF(SKP2) directs ubiquitination of ORC1, CDT1, RBL2, ELF4, CDKN1A, RAG2, FOXO1A, and probably MYC and TAL1. SCF(FBXW7) directs ubiquitination of cyclin E, NOTCH1 released notch intracellular domain (NICD), and probably PSEN1. SCF(FBXW2) directs ubiquitination of GCM1. SCF(FBXO32) directs ubiquitination of MYOD1. SCF(FBXO7) directs ubiquitination of BIRC2 and DLGAP5. SCF(FBXO33) directs ubiquitination of YBX1. SCF(FBXO11) directs ubiquitination of BCL6 and DTL but does not seem to direct ubiquitination of TP53. 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(CCNF) directs ubiquitination of CCP110. SCF(FBXL3) and SCF(FBXL21) direct ubiquitination of CRY1 and CRY2. SCF(FBXO9) directs ubiquitination of TTI1 and TELO2. SCF(FBXO10) directs ubiquitination of BCL2.By similarity

Pathwayi: protein ubiquitination

This protein is involved in the pathway protein ubiquitination, which is part of Protein modification.
View all proteins of this organism that are known to be involved in the pathway protein ubiquitination and in Protein modification.

GO - Biological processi

Keywordsi

Biological processUbl conjugation pathway

Enzyme and pathway databases

UniPathwayiUPA00143

Names & Taxonomyi

Protein namesi
Recommended name:
S-phase kinase-associated protein 1
Alternative name(s):
Cyclin-A/CDK2-associated protein p19
S-phase kinase-associated protein 1A
p19A
p19skp1
Gene namesi
Name:SKP1
Synonyms:SKP1A
OrganismiBos taurus (Bovine)
Taxonomic identifieri9913 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCetartiodactylaRuminantiaPecoraBovidaeBovinaeBos
Proteomesi
  • UP000009136 Componenti: Chromosome 7

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00002884901 – 163S-phase kinase-associated protein 1Add BLAST163

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei131PhosphothreonineBy similarity1
Cross-linki142Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO1)By similarity

Keywords - PTMi

Isopeptide bond, Phosphoprotein, Ubl conjugation

Proteomic databases

PaxDbiQ3ZCF3
PeptideAtlasiQ3ZCF3
PRIDEiQ3ZCF3

Expressioni

Gene expression databases

BgeeiENSBTAG00000025191

Interactioni

Subunit structurei

Component of multiple SCF (SKP1-CUL1-F-box) E3 ubiquitin-protein ligase complexes formed of CUL1, SKP1, RBX1 and a variable F-box domain-containing protein as substrate-specific subunit. Component of the SCF(FBXW11) complex containing FBXW11. Component of the SCF(SKP2) complex containing SKP2, in which it interacts directly with SKP1, SKP2 and RBX1. Component of the SCF(FBXW2) complex containing FBXw2. Component of the SCF(FBXO32) complex containing FBXO32. Component of the probable SCF(FBXO7) complex containing FBXO7. Component of the SCF(FBXO10) complex containing FBXO10. Component of the SCF(FBXO11) complex containing FBXO11. Component of the SCF(FBXO25) complex containing FBXO25. Component of the SCF(FBXO33) complex containing FBXO33. Component of the probable SCF(FBXO4) complex containing FBXO4. Component of the SCF(FBXO44) complex, composed of SKP1, CUL1 and FBXO44. Component of the SCF(BTRC) complex, composed of SKP1, CUL1 and BTRC. This complex binds phosphorylated NFKBIA. Part of a SCF complex consisting of CUL1, RBX1, SKP1 and FBXO2. Component of a SCF(SKP2)-like complex containing CUL1, SKP1, TRIM21 and SKP2. 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(CCNF) complex consisting of CUL1, RBX1, SKP1 and CCNF. Component of the SCF(FBXL3) complex composed of CUL1, SKP1, RBX1 and FBXL3. Component of the SCF(FBXL21) complex composed of CUL1, SKP1, RBX1 and FBXL21. Component of the SCF(FBXO9) composed of CUL1, SKP1, RBX1 and FBXO9. Component of the SCF(FBXW7) composed of CUL1, SKP1, RBX1 and FBXW7. Interacts with CEP68. Interacts with NOTCH2 (By similarity).By similarity

Protein-protein interaction databases

STRINGi9913.ENSBTAP00000035184

Structurei

3D structure databases

ProteinModelPortaliQ3ZCF3
SMRiQ3ZCF3
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni104 – 163Interaction with the F-box domain of F-box proteinsBy similarityAdd BLAST60

Sequence similaritiesi

Belongs to the SKP1 family.Curated

Phylogenomic databases

eggNOGiKOG1724 Eukaryota
COG5201 LUCA
GeneTreeiENSGT00390000012652
HOGENOMiHOG000172184
HOVERGENiHBG057008
InParanoidiQ3ZCF3
KOiK03094
OMAiENKWCEE
OrthoDBiEOG091G0OU2
TreeFamiTF354233

Family and domain databases

InterProiView protein in InterPro
IPR016897 SKP1
IPR001232 SKP1-like
IPR036296 SKP1-like_dim_sf
IPR011333 SKP1/BTB/POZ_sf
IPR016072 Skp1_comp_dimer
IPR016073 Skp1_comp_POZ
PfamiView protein in Pfam
PF01466 Skp1, 1 hit
PF03931 Skp1_POZ, 1 hit
PIRSFiPIRSF028729 E3_ubiquit_lig_SCF_Skp, 1 hit
SMARTiView protein in SMART
SM00512 Skp1, 1 hit
SUPFAMiSSF54695 SSF54695, 1 hit
SSF81382 SSF81382, 1 hit

Sequencei

Sequence statusi: Complete.

Q3ZCF3-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MPSIKLQSSD GEIFEVDVEI AKQSVTIKTM LEDLGMDDEG DDDPVPLPNV
60 70 80 90 100
NAAILKKVIQ WCTHHKDDPP PPEDDENKEK RTDDIPVWDQ EFLKVDQGTL
110 120 130 140 150
FELILAANYL DIKGLLDVTC KTVANMIKGK TPEEIRKTFN IKNDFTEEEE
160
AQVRKENQWC EEK
Length:163
Mass (Da):18,658
Last modified:September 27, 2005 - v1
Checksum:iC794D62AFB75528A
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BT029901 mRNA Translation: ABM06147.1
BC102435 mRNA Translation: AAI02436.1
RefSeqiNP_001029953.1, NM_001034781.2
UniGeneiBt.87240

Genome annotation databases

EnsembliENSBTAT00000035306; ENSBTAP00000035184; ENSBTAG00000025191
GeneIDi615427
KEGGibta:615427

Similar proteinsi

Entry informationi

Entry nameiSKP1_BOVIN
AccessioniPrimary (citable) accession number: Q3ZCF3
Entry historyiIntegrated into UniProtKB/Swiss-Prot: May 29, 2007
Last sequence update: September 27, 2005
Last modified: March 28, 2018
This is version 98 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome
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Main funding by: National Institutes of Health