Cloning and characterization of ELL-associated proteins EAP45 and EAP20. a role for yeast EAP-like proteins in regulation of gene expression by glucose.
RNA polymerase II elongation factor ELL was recently purified from rat liver as a component of a multiprotein complex containing ELL and three ELL-associated proteins (EAPs) of approximately 45 (EAP45), approximately 30 (EAP30), and approximately 20 (EAP20) kDa (Shilatifard, A. (1998) J. Biol. Chem. 273, 11212-11217). Cloning of cDNA encoding the EAP30 protein revealed that it shares significant sequence similarity with the product of the Saccharomyces cerevisiae SNF8 gene (Schmidt, A. E., Miller, T., Schmidt, S. L., Shiekhattar, R., and Shilatifard, A. (1999) J. Biol. Chem. 274, 21981-21985), which is required for efficient derepression of glucose-repressed genes. Here we report the cloning of cDNAs encoding the EAP45 and EAP20 proteins. In addition, we identify the S. cerevisiae VPS36 and YJR102c genes as potential orthologs of EAP45 and EAP20 and show that they are previously uncharacterized SNF genes with properties very similar to SNF8.
Kamura
T
T
Program in Molecular and Cell Biology, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma 73104, USA.
Burian
D
D
Khalili
H
H
Schmidt
S L
SL
Sato
S
S
Liu
W J
WJ
Conrad
M N
MN
Conaway
R C
RC
Conaway
J W
JW
Shilatifard
A
A
D000595:Amino Acid Sequence; D000818:Animals; D017173:Caenorhabditis elegans / Q000235:genetics; D003001:Cloning, Molecular; D017124:Conserved Sequence; D004268:DNA-Binding Proteins / Q000737:chemistry / Q000235:genetics / Q000378:metabolism*; D004331:Drosophila melanogaster / Q000235:genetics; D056827:Endosomal Sorting Complexes Required for Transport; D005656:Fungal Proteins / Q000737:chemistry / Q000235:genetics / Q000378:metabolism; D015966:Gene Expression Regulation, Fungal / Q000187:drug effects / Q000502:physiology*; D005947:Glucose / Q000494:pharmacology*; D006801:Humans; D008099:Liver / Q000201:enzymology; D008322:Mammals; D051379:Mice; D008969:Molecular Sequence Data; D009363:Neoplasm Proteins; D010445:Peptide Elongation Factors; D010446:Peptide Fragments / Q000737:chemistry; D021122:Protein Subunits; D012319:RNA Polymerase II / Q000378:metabolism; D051381:Rats; D011994:Recombinant Proteins / Q000378:metabolism; D012441:Saccharomyces cerevisiae / Q000187:drug effects / Q000235:genetics* / Q000378:metabolism; D016415:Sequence Alignment; D017386:Sequence Homology, Amino Acid; D014157:Transcription Factors / Q000737:chemistry / Q000235:genetics / Q000378:metabolism*; D035602:Transcriptional Elongation Factors
D004268:DNA-Binding Proteins; C428205:EAP45 protein, rat; C090862:ELL protein, human; D056827:Endosomal Sorting Complexes Required for Transport; D005656:Fungal Proteins; D009363:Neoplasm Proteins; D010445:Peptide Elongation Factors; D010446:Peptide Fragments; D021122:Protein Subunits; D011994:Recombinant Proteins; D014157:Transcription Factors; D035602:Transcriptional Elongation Factors; C428204:Vps25 protein, rat; D012319:RNA Polymerase II; D005947:Glucose