SPT4/YGR063C Protein Information Help

Standard Name Spt4p 1, 2
Systematic Name Ygr063cp
ORF Classification Verified
Description Component of the universally conserved Spt4/5 complex (DSIF complex); the complex has multiple roles in concert with RNA polymerases I and II, including regulation of transcription elongation, RNA processing, quality control, and transcription-coupled DNA repair; Spt4p also localizes to kinetochores and heterochromatin and affects chromosome dynamics and silencing; required for transcription through lengthy trinucleotide repeats in ORFs or non-protein coding regions (10, 11, 3, 4, 5, 6, 7, 8, 9)
Name Description SuPpressor of Ty's 1
Experimental Data
Molecules/cell 4490 12
Predicted Sequence Formatted Sequence or sequence in FASTA format
Length (a.a.) 102
Molecular Weight (Da) 11,158
Isoelectric Point (pI) 4.9

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Post-translational Modifications PhosphoGRID | PhosphoPep Database
Domains/motifs See the graphical view and list of proteins that share domains/motifs in common with Spt4p (InterPro)
Physical Interactions There are 86 total physical interactions (BioGRID)
Homologs PDB Homologs | BLASTP | BLASTP v. fungi | Fungal Alignment | Synteny Viewer
External Sequence Databases EBI: UPI0000053199 | P32914
MIPS: YGR063C
NCBI: 112362848 | 112362850 | 112362852 | 112362854 | 112362856 | 112362858 | 112362860 | 112362862 | 112362864 | 112362866 | 112362868 | 112362870 | 112362872 | 119389383 | 1323083 | 295667 | 398365457 | 417803 | 51013631 | 71064049 | NP_011577.3
GenBank/EMBL/DDBJ: DAA08159.1 | AM296426 | AM296427 | AM296428 | AM296429 | AM296430 | AM296431 | AM296432 | AM296433 | AM296434 | AM296435 | AM296436 | AM296437 | AM296438 | AY693090 | DQ115391 | M83672 | Z72848
Amino Acid Sequence (or in FASTA format)
       1  MSSERACMLC GIVQTTNEFN RDGCPNCQGI FEEAGVSTME CTSPSFEGLV
      51  GMCKPTKSWV AKWLSVDHSI AGMYAIKVDG RLPAEVVELL PHYKPRDGSQ
     101  VE*                                                   

external links for Spt4p
Homologs Interaction Resources Protein databases/Other Localization Resources
BLASTP (NCBI) BioGRID SCOP Superfamily YPL+
Ashbya (AGD) BOND GPMdb (Mass Spec.) YeastGFP
Aspergillus (AspGD) BioPIXIE MIPS YeastRC Public Image Repository
Candida (CGD) CYC2008 (complexes) Pfam domains
Candida (CandidaDB) Complexome

YGOB DIP

YOGY GeneMANIA

References cited on this page View Complete Literature Guide for Spt4p
1) Winston F, et al.  (1984) Mutations affecting Ty-mediated expression of the HIS4 gene of Saccharomyces cerevisiae. Genetics 107(2):179-97
2) Fassler, J. and Winston, F.  (1989) Personal Communication, Mortimer Map Edition 10
3) Lindstrom DL, et al.  (2003) Dual roles for Spt5 in pre-mRNA processing and transcription elongation revealed by identification of Spt5-associated proteins. Mol Cell Biol 23(4):1368-78
4) Rondon AG, et al.  (2003) Molecular evidence for a positive role of Spt4 in transcription elongation. EMBO J 22(3):612-20
5) Crotti LB and Basrai MA  (2004) Functional roles for evolutionarily conserved Spt4p at centromeres and heterochromatin in Saccharomyces cerevisiae. EMBO J 23(8):1804-14
6) Schneider DA, et al.  (2006) RNA polymerase II elongation factors Spt4p and Spt5p play roles in transcription elongation by RNA polymerase I and rRNA processing. Proc Natl Acad Sci U S A 103(34):12707-12
7) Ding B, et al.  (2010) The C-terminal repeat domain of Spt5 plays an important role in suppression of Rad26-independent transcription coupled repair. J Biol Chem 285(8):5317-26
8) Shen Z, et al.  (2010) Cotranscriptional recruitment of She2p by RNA pol II elongation factor Spt4-Spt5/DSIF promotes mRNA localization to the yeast bud. Genes Dev 24(17):1914-26
9) Anderson SJ, et al.  (2011) The transcription elongation factor Spt5 influences transcription by RNA polymerase I positively and negatively. J Biol Chem 286(21):18816-24
10) Lepore N and Lafontaine DL  (2011) A Functional Interface at the rDNA Connects rRNA Synthesis, Pre-rRNA Processing and Nucleolar Surveillance in Budding Yeast. PLoS One 6(9):e24962
11) Liu CR, et al.  (2012) Spt4 is selectively required for transcription of extended trinucleotide repeats. Cell 148(4):690-701
12) Ghaemmaghami S, et al.  (2003) Global analysis of protein expression in yeast. Nature 425(6959):737-41