ID:PUF60_HUMAN DESCRIPTION: RecName: Full=Poly(U)-binding-splicing factor PUF60; AltName: Full=60 kDa poly(U)-binding-splicing factor; AltName: Full=FUSE-binding protein-interacting repressor; Short=FBP-interacting repressor; AltName: Full=Ro-binding protein 1; Short=RoBP1; AltName: Full=Siah-binding protein 1; Short=Siah-BP1; FUNCTION: DNA- and RNA-binding protein, involved in several nuclear processes such as pre-mRNA splicing, apoptosis and transcription regulation. In association with FUBP1 regulates MYC transcription at the P2 promoter through the core-TFIIH basal transcription factor. Acts as a transcriptional repressor through the core-TFIIH basal transcription factor. Represses FUBP1-induced transcriptional activation but not basal transcription. Decreases ERCC3 helicase activity. Does not repress TFIIH-mediated transcription in xeroderma pigmentosum complementation group B (XPB) cells. Is also involved in pre-mRNA splicing. Promotes splicing of an intron with weak 3'-splice site and pyrimidine tract in a cooperative manner with U2AF2. Involved in apoptosis induction when overexpressed in HeLa cells. Isoform 6 failed to repress MYC transcription and inhibited FIR-induced apoptosis in colorectal cancer. Isoform 6 may contribute to tumor progression by enabling increased MYC expression and greater resistance to apoptosis in tumors than in normal cells. Modulates alternative splicing of several mRNAs. Binds to relaxed DNA of active promoter regions. Binds to the pyrimidine tract and 3'-splice site regions of pre-mRNA; binding is enhanced in presence of U2AF2. Binds to Y5 RNA in association with TROVE2. Binds to poly(U) RNA. SUBUNIT: Homodimer. Associates with the spliceosome. Found in a complex with TROVE2 and Y5 RNA. Found in a complex with FUBP1 and far upstream element (FUSE) DNA segment. Interacts directly with ERCC3. Interacts with CDK7, GTF2H1 and SFRS11. Does not interact with ERCC3 in xeroderma pigmentosum complementation group B (XPB) cells. INTERACTION: O00555:CACNA1A; NbExp=2; IntAct=EBI-1053259, EBI-766279; Q15365:PCBP1; NbExp=2; IntAct=EBI-1053259, EBI-946095; Q96I34:PPP1R16A; NbExp=2; IntAct=EBI-1053259, EBI-710402; Q9UHR5:SAP30BP; NbExp=4; IntAct=EBI-1053259, EBI-751683; SUBCELLULAR LOCATION: Nucleus. Note=Colocalizes partially with TROVE2. TISSUE SPECIFICITY: Isoform 2 is expressed in colonic epithelium and colorectal epithelium cancer (at protein level). Isoform 6 is expressed in colorectal epithelial cancer but below detection level in colonic epithelium. Expressed in heart, brain, placenta, lung, liver, skeletal muscle, kidney, pancreas, spleen, thymus, prostate, testis, ovary, small intestine, colon and peripheral blood leukocytes. DOMAIN: The third RNA recognition motif, called PUMP domain, is atypical and may rather mediate homodimerization and/or protein- protein interactions. MISCELLANEOUS: Does not repress TFIIH-mediated transcription in xeroderma pigmentosum complementation group B (XPB) cells. SIMILARITY: Belongs to the RRM half pint family. SIMILARITY: Contains 3 RRM (RNA recognition motif) domains.
The RNAfold program from the Vienna RNA Package is used to perform the secondary structure predictions and folding calculations. The estimated folding energy is in kcal/mol. The more negative the energy, the more secondary structure the RNA is likely to have.
ModBase Predicted Comparative 3D Structure on Q9UHX1
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Orthologous Genes in Other Species
Orthologies between human, mouse, and rat are computed by taking the best BLASTP hit, and filtering out non-syntenic hits. For more distant species reciprocal-best BLASTP hits are used. Note that the absence of an ortholog in the table below may reflect incomplete annotations in the other species rather than a true absence of the orthologous gene.
BC011979 - Homo sapiens poly-U binding splicing factor 60KDa, mRNA (cDNA clone MGC:9835 IMAGE:3863660), complete cds. BC035435 - Homo sapiens poly-U binding splicing factor 60KDa, mRNA (cDNA clone IMAGE:4154228). BC009734 - Homo sapiens poly-U binding splicing factor 60KDa, mRNA (cDNA clone MGC:9958 IMAGE:3877563), complete cds. U51586 - Human siah binding protein 1 (SiahBP1) mRNA, partial cds. AF190744 - Homo sapiens poly-U binding splicing factor PUF60 (PUF60) mRNA, partial cds. AF217197 - Homo sapiens FBP-interacting repressor (FIR) mRNA, complete cds. BC008875 - Homo sapiens poly-U binding splicing factor 60KDa, mRNA (cDNA clone MGC:15202 IMAGE:4138778), complete cds. AF114818 - Homo sapiens Ro ribonucleoprotein-binding protein 1 mRNA, complete cds. BC011265 - Homo sapiens poly-U binding splicing factor 60KDa, mRNA (cDNA clone MGC:18191 IMAGE:4155549), complete cds. JD395932 - Sequence 376956 from Patent EP1572962. AK292373 - Homo sapiens cDNA FLJ77377 complete cds, highly similar to Homo sapiens fuse-binding protein-interacting repressor (SIAHBP1), transcript variant 1, mRNA. KJ893297 - Synthetic construct Homo sapiens clone ccsbBroadEn_02691 PUF60 gene, encodes complete protein. KJ902235 - Synthetic construct Homo sapiens clone ccsbBroadEn_11629 PUF60 gene, encodes complete protein. KJ893296 - Synthetic construct Homo sapiens clone ccsbBroadEn_02690 PUF60 gene, encodes complete protein. AB527889 - Synthetic construct DNA, clone: pF1KB0473, Homo sapiens PUF60 gene for poly-U binding splicing factor 60KDa, without stop codon, in Flexi system. CR457143 - Homo sapiens full open reading frame cDNA clone RZPDo834F1014D for gene SIAHBP1, fuse-binding protein-interacting repressor; complete cds, incl. stopcodon. JD021108 - Sequence 2132 from Patent EP1572962. JD028709 - Sequence 9733 from Patent EP1572962. AK055941 - Homo sapiens cDNA FLJ31379 fis, clone NHNPC1000084, highly similar to Homo sapiens poly-U binding splicing factor PUF60 mRNA. CU679467 - Synthetic construct Homo sapiens gateway clone IMAGE:100019689 5' read PUF60 mRNA. CU679161 - Synthetic construct Homo sapiens gateway clone IMAGE:100017397 5' read PUF60 mRNA.
Biochemical and Signaling Pathways
Reactome (by CSHL, EBI, and GO)
Protein Q9UHX1 (Reactome details) participates in the following event(s):
R-HSA-72124 Formation of the Spliceosomal A Complex R-HSA-72143 Lariat Formation and 5'-Splice Site Cleavage R-HSA-72139 Formation of the active Spliceosomal C (B*) complex R-HSA-72127 Formation of the Spliceosomal B Complex R-HSA-72130 Formation of an intermediate Spliceosomal C (Bact) complex R-HSA-156661 Formation of Exon Junction Complex R-HSA-72163 mRNA Splicing - Major Pathway R-HSA-72172 mRNA Splicing R-HSA-72203 Processing of Capped Intron-Containing Pre-mRNA R-HSA-8953854 Metabolism of RNA
US Server
Sequence and Links to Tools and Databases 
Common Gene Haplotype Alleles 
