Blast Analysis : gnl|CDD|63889

Analysis  rpsblast_cdd Start  169
End  297 Strand  +
Length  129 Note  Gaps:4
Hit Coverage  100.00 Hit Length  127
Hit Pident  33.86 E Val  1e-45
Hit Description  cd03829 Sina Seven in absentia (Sina) protein family C-terminal substrate binding domain composed of the Drosophila Sina protein the mammalian Sina homolog (Siah) the plant protein SINAT5 and similar proteins. Sina Siah and SINAT5 are RING-containing proteins that function as E3 ubiquitin ligases acting either as single proteins or as a part of multiprotein complexes. Sina is expressed in many cells in the developing eye but is essential specifically for R7 photoreceptor cell development. Sina cooperates with Phyllopod (Phyl) Ebi and the E2 ubiquitin-conjugating enzyme Ubcd1 to catalyze the ubiquitination and subsequent degradation of Tramtrack (Ttk88) Ttk88 is a transcriptional repressor that blocks photoreceptor differentiation. Similarly the mammalian homologue Siah1 cooperates with SIP (Siah-interacting protein) Ebi and the adaptor protein Skp1 to target beta-catenin for ubiquitination and degradation via a p53-dependent mechanism. SINAT5 targets NAC1 for ubiquitin-mediated degradation resulting in the downregulation of auxin a hormone that controls many aspects of plant development. Other targets of Sina family proteins include c-Myb synaptophysin group 1 glutamate receptors promyelocytic leukemia protein alpha-synuclein synphilin-1 and alpha-ketoglutarate dehydrogenase among others. Sina proteins also bind proteins that are not targets for ubiquitination such as Phyl adenomatous polyposis coli VAV BAG-1 and Dab-1. Siah binds to a consensus motif PXAXVXP which is present in Siah-binding proteins. Siah is a dimeric protein consisting of an N-terminal RING domain two zinc finger motifs and a C-terminal substrate-binding domain (SBD) this SBD contains an eight-stranded antiparallel beta-sandwich fold similar to the MATH (meprin and TRAF-C homology) domain.. Hit Pcons  18.90
Name  Qrob_P0687150.2

1 Protein

Protein Identifier
Organism . Name
Score Score Type Protein Description Alias (in v1) Code Enzyme Gene Prediction Quality
Qrob_P0687150.2 Quercus robur 100.2 egn (M=5) K04506 - E3 ubiquitin-protein ligase SIAH1 [EC:6.3.2.19]   EC:6.3.2.19 validated