ORIGIN
1 maasadlsks sptpngipss dpasdamdpf hacsilkqlk tmydegqltd ivvevdhgkt
61 fschrnvlaa ispyfrsmft sgltestqke vrivgveaes mdlvlnyayt srvilteanv
121 qalftaasif qipsiqdqca kymishldpq nsigvfifad hyghqelgdr skeyirkkfl
181 cvtkeqeflq ltkdqlisil dsddlnvdre ehvyesiirw feheqnerev hlpeifakci
241 rfplmedtfi ekippqfaqa iakscvekgp sntngctqrl gmtasemiic fdaahkhsgk
301 kqtvpcldiv tgrvfklckp pndlrevgil vspdndiyia ggyrpsssev sidhkaendf
361 wmydhstnrw lskpsllrar igcklvyccg kmyaiggrvy egdgrnslks vecydsrenc
421 wttvcampva mefhnaveyk ekiyvlqgef flfyepqkdy wgfltpmtvp riqglaavyk
481 dsiyyiagtc gnhqrmftve aydielnkwt rkkdfpcdqs inpylklvlf qnklhlfvra
541 tqvtveehvf rtsrknslyq yddiadqwmk vyetpdrlwd lgrhfecava klypqclqkv
601 l
//
REFERENCE 1 (residues 1 to 601)
AUTHORS Werner A, Baur R, Teerikorpi N, Kaya DU and Rape M.
TITLE Multisite dependency of an E3 ligase controls
monoubiquitylation-dependent cell fate decisions
JOURNAL Elife 7, e35407 (2018)
PUBMED 29999490
REMARK GeneRIF: The authors found that CUL3 complexed with KBTBD8
monoubiquitylates its essential targets only after these have been
phosphorylated in multiple motifs by CK2, a kinase whose levels
gradually increase during embryogenesis.
Publication Status: Online-Only
Metazoan development depends on tightly regulated gene expression
programs that instruct progenitor cells to adopt specialized fates.
Recent work found that posttranslational modifications, such as
monoubiquitylation, can determine cell fate also independently of
effects on transcription, yet how monoubiquitylation is implemented
during development is poorly understood. Here, we have identified a
regulatory circuit that controls monoubiquitylation-dependent neural
crest specification by the E3 ligase CUL3 and its substrate adaptor
KBTBD8. We found that CUL3KBTBD8 monoubiquitylates its
essential targets only after these have been phosphorylated in multiple
motifs by CK2, a kinase whose levels gradually increase during
embryogenesis. Its dependency on multisite phosphorylation allows CUL3KBTBD8
to convert the slow rise in embryonic CK2 into decisive recognition of
ubiquitylation substrates, which in turn is essential for neural crest
specification. We conclude that multisite dependency of an E3 ligase
provides a powerful mechanism for switch-like cell fate transitions
controlled by monoubiquitylation.
- Conserved Domains (6) summary
-
- smart00612
Location:337 → 388
- Kelch; Kelch domain
- PHA03098
Location:50 → 516
- PHA03098; kelch-like protein; Provisional
- sd00038
Location:330 → 376
- Kelch; KELCH repeat [structural motif]
- pfam00651
Location:39 → 144
- BTB; BTB/POZ domain
- pfam01344
Location:379 → 428
- Kelch_1; Kelch motif
- pfam07707
Location:153 → 250
- BACK; BTB And C-terminal Kelch
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