TSA1/YML028W Protein Information Help

Standard Name Tsa1p
Systematic Name Yml028wp
Alias Zrg14p 1 , Tpx1p
ORF Classification Verified
Description Thioredoxin peroxidase; acts as both a ribosome-associated and free cytoplasmic antioxidant; self-associates to form a high-molecular weight chaperone complex under oxidative stress; deletion results in mutator phenotype; protein abundance increases and forms cytoplasmic foci in response to DNA replication stress; required for telomere length maintenace; TSA1 has a paralog, TSA2, that arose from the whole genome duplication (10, 11, 2, 3, 4, 5, 6, 7, 8, 9)
Name Description Thiol-Specific Antioxidant 3
Gene Product cTPxI
Experimental Data
Molecules/cell 378000 12
Predicted Sequence Formatted Sequence or sequence in FASTA format
Length (a.a.) 196
Molecular Weight (Da) 21,590
Isoelectric Point (pI) 4.87

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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 Tsa1p (InterPro)
Transmembrane Domains There are 1 total predicted transmembrane domains (TMHMM)
Physical Interactions There are 55 total physical interactions (BioGRID)
Homologs PDB Homologs | BLASTP | BLASTP v. fungi | Fungal Alignment | Synteny Viewer
External Sequence Databases EBI: UPI000002FC87 | P34760
MIPS: YML028W
NCBI: 349196 | 400260528 | 400260529 | 400260530 | 400260531 | 400260532 | 400260533 | 400260534 | 400260535 | 400260536 | 400260537 | 464970 | 575691 | 6323613 | NP_013684.1
GenBank/EMBL/DDBJ: DAA09870.1 | L14640 | Z46659
External Classifications EC: 1.11.1.15 [Peroxiredoxin]
Amino Acid Sequence (or in FASTA format)
       1  MVAQVQKQAP TFKKTAVVDG VFDEVSLDKY KGKYVVLAFI PLAFTFVCPT
      51  EIIAFSEAAK KFEEQGAQVL FASTDSEYSL LAWTNIPRKE GGLGPINIPL
     101  LADTNHSLSR DYGVLIEEEG VALRGLFIID PKGVIRHITI NDLPVGRNVD
     151  EALRLVEAFQ WTDKNGTVLP CNWTPGAATI KPTVEDSKEY FEAANK*   

external links for Tsa1p
Homologs Interaction Resources Protein databases/Other Localization Resources
BLASTP (NCBI) BioGRID SCOP Superfamily Organelle DB
Ashbya (AGD) BOND GPMdb (Mass Spec.) YPL+
Candida (CGD) BioPIXIE MIPS YeastGFP
Candida (CGD) CYC2008 (complexes) Pfam domains YeastRC Public Image Repository
Candida (CandidaDB) Complexome YeastRC Structure Prediction (Seattle)
YGOB DIP

YOGY GeneMANIA


YeastRC Mass Spec (Seattle)

References cited on this page View Complete Literature Guide for Tsa1p
1) Yuan DS  (2000) Zinc-regulated genes in Saccharomyces cerevisiae revealed by transposon tagging. Genetics 156(1):45-58
2) Chae HZ, et al.  (1994) Thioredoxin-dependent peroxide reductase from yeast. J Biol Chem 269(44):27670-8
3) Chae HZ, et al.  (1993) Cloning, sequencing, and mutation of thiol-specific antioxidant gene of Saccharomyces cerevisiae. J Biol Chem 268(22):16815-21
4) Wong CM, et al.  (2002) Cooperation of yeast peroxiredoxins Tsa1p and Tsa2p in the cellular defense against oxidative and nitrosative stress. J Biol Chem 277(7):5385-94
5) Huang ME, et al.  (2003) A genomewide screen in Saccharomyces cerevisiae for genes that suppress the accumulation of mutations. Proc Natl Acad Sci U S A 100(20):11529-34
6) Wong CM, et al.  (2004) Peroxiredoxin-null yeast cells are hypersensitive to oxidative stress and are genomically unstable. J Biol Chem 279(22):23207-13
7) Okazaki S, et al.  (2005) Peroxiredoxin-mediated redox regulation of the nuclear localization of Yap1, a transcription factor in budding yeast. Antioxid Redox Signal 7(3-4):327-34
8) Byrne KP and Wolfe KH  (2005) The Yeast Gene Order Browser: combining curated homology and syntenic context reveals gene fate in polyploid species. Genome Res 15(10):1456-61
9) Trotter EW, et al.  (2008) The yeast Tsa1 peroxiredoxin is a ribosome-associated antioxidant. Biochem J 412(1):73-80
10) Tkach JM, et al.  (2012) Dissecting DNA damage response pathways by analysing protein localization and abundance changes during DNA replication stress. Nat Cell Biol 14(9):966-76
11) Lu J, et al.  (2013) Deletion of the major peroxiredoxin Tsa1 alters telomere length homeostasis. Aging Cell ()
12) Ghaemmaghami S, et al.  (2003) Global analysis of protein expression in yeast. Nature 425(6959):737-41