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Details on Person UniProt:Q24311 Cul1

Class:IdReferenceGeneProduct:88440
_chainChangeLogchain:1-774 added on Sat February 7 2015
_displayNameUniProt:Q24311 Cul1
_timestamp2023-11-03 16:19:49
chainchain:1-774
checksum1AF0D035DE85363C
commentFUNCTION Core component of multiple SCF (SKP1-CUL1-F-box protein) E3 ubiquitin-protein ligase complexes which mediate the ubiquitination of proteins involved in cell cycle progression, signal transduction and transcription. In the SCF complex, serves as a rigid scaffold that organizes the SKP1-F-box protein and RBX1 subunits. May contribute to catalysis through positioning of the substrate and the ubiquitin-conjugating enzyme. During early metamorphosis, part of the SCF-slmb complex that negatively regulates the InR/PI3K/TOR pathway to activate the pruning of unnecessary larval ddaC dendrites and mushroom body axons (PubMed:24068890). The SCF-slmb complex also regulates asymmetrical division of neuroblasts and inhibits ectopic neuroblast formation partly through SAK and Akt1 (PubMed:24413555). Also part of an SCF complex required for caspase activation during sperm differentiation (PubMed:20392747). Necessary for auditory transduction: plays a role in Johnston's organ organization by acting in the regulation of zip and ck function in scolopidial apical attachment (PubMed:27331610). May function by acting in a Ubr3-mediated pathway that negatively regulates the ubiquitination of zip, consequently affecting its interaction with ck (PubMed:27331610).PATHWAY Protein modification; protein ubiquitination.SUBUNIT Component of SCF E3 ubiquitin-protein ligase complexes consisting of Skpa, Cul1, Roc1a and an F-box protein. In larval neuroblast self renewal and asymmetric division, as well as ddaC dendrite and mushroom body axon pruning, the complex contains the F-box protein slmb (SCF-slmb) (PubMed:24068890, PubMed:24413555). In caspase activation during sperm differentiation, the complex contains the F-box protein ntc (PubMed:20392747). Interacts directly with Roc1a (PubMed:11500045). Interacts with Fsn (PubMed:20123973). Interacts with Dlish (PubMed:27692068). Interacts with Cad99C (via the cytoplasmic domain) (PubMed:27331610). Interacts with Sans (PubMed:27331610).INTERACTION In the spermatid, colocalizes with ntc at the actin-based individualization complex and the cystic bulge.TISSUE SPECIFICITY Expressed in testis.PTM Neddylated (PubMed:12183637, PubMed:18493598). Deneddylated via its interaction with the COP9 signalosome (CSN) complex (PubMed:12183637).DISRUPTION PHENOTYPE Severe dendrite pruning defects in ddaC neurons at 16 hours after puparium formation (APF) and axon pruning defects in mushroom body gamma neurons at 24 hours APF. RNAi-mediated knockdown results in a significant increase in Akt1 protein levels and activity in ddaC somas (PubMed:24068890). In the larval brain there is a large increase in the number of neuroblasts, 40% of which show a spindle misorientation at metaphase (PubMed:24413555). RNAi-mediated knockdown results in apical detachment of scolopidial cells in Johnston's organ (PubMed:27331610).SIMILARITY Belongs to the cullin family.
descriptionrecommendedName: Cullin homolog 1 alternativeName: Lin-19 homolog protein
geneNameCul1
cul-1
lin19
CG1877
identifierQ24311
isSequenceChangedFALSE
keywordCytoplasm
Isopeptide bond
Reference proteome
Ubl conjugation
Ubl conjugation pathway
modified[InstanceEdit:143527] Schmidt, EE, 2004-11-12 07:45:10
[InstanceEdit:217385] Schmidt, EE, 2008-03-27 06:23:53
[InstanceEdit:354386] Schmidt, EE, 2008-06-18 04:45:12
[InstanceEdit:384350] Kanapin, AA, 2008-11-26 14:00:39
[InstanceEdit:392885] Kanapin, AA, 2009-03-09 12:07:18
[InstanceEdit:400710] Schmidt, EE, 2009-03-25 05:33:35
[InstanceEdit:423310] Kanapin, AA
[InstanceEdit:435478] Kanapin, AA
[InstanceEdit:435871] Kanapin, AA
[InstanceEdit:447347] Kanapin, AA
[InstanceEdit:525883] Kanapin, AA
[InstanceEdit:613449] Kanapin, AA
[InstanceEdit:797602] Kanapin, AA
[InstanceEdit:937368] Yung, CK
[InstanceEdit:1042053] Yung, CK
[InstanceEdit:1220657] Yung, CK
[InstanceEdit:1300696] Yung, CK
[InstanceEdit:1301627] Yung, CK
[InstanceEdit:1551960] Weiser, JD
[InstanceEdit:1995863] Weiser, JD
[InstanceEdit:2132304] Weiser, JD
[InstanceEdit:2265580] Weiser, JD
[InstanceEdit:3445779] Weiser, JD
[InstanceEdit:5263031] Weiser, JD
[InstanceEdit:5433710] Weiser, JD
[InstanceEdit:5618415] Weiser, JD
[InstanceEdit:5634237] Weiser, JD
[InstanceEdit:5673015] Weiser, JD
[InstanceEdit:6791590] Weiser, JD
[InstanceEdit:9037114] Weiser, JD
[InstanceEdit:9637257] Weiser, JD
[InstanceEdit:9676415] Weiser, JD
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
nameCul1
referenceDatabase[ReferenceDatabase:2] UniProt
secondaryIdentifierCUL1_DROME
A4UZ78
Q0E9G0
Q9V312
sequenceLength774
species[Species:56210] Drosophila melanogaster
(referenceEntity)[EntityWithAccessionedSequence:206151] LIN19 [cytosol] [Drosophila melanogaster]
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