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Protein

Seventh homolog of septin 1

Gene

SHS1

Organism
Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)
Status
Reviewed-Annotation score: Annotation score: 5 out of 5-Experimental evidence at protein leveli

Functioni

Septins are GTPases involved in cytokinesis that assemble early in the cell cycle as a patch at the incipient bud site and form a ring approximate 15 min before bud emergence, which transforms into an hour-glass shaped collar of cortical filaments that spans both sides of the mother-bud neck. This collar persists until just before cytokinesis, when it splits into two rings that occupy opposite sides of the neck. The septins at the bud neck serve as a structural scaffold that recruits different components involved in diverse processes at specific stages during the cell cycle. Many proteins bind asymmetrically to the septin collar. The septin assembly is regulated by protein kinases GIN4 and/or CLA4. May act by recruiting MYO1 and HOF1, a protein involved in septation, to the site of cleavage. Septins are also involved in cell morphogenesis, bud site selection, chitin deposition, cell cycle regulation, cell compartmentalization and spore wall formation.1 Publication

Miscellaneous

Present with 5620 molecules/cell in log phase SD medium.1 Publication

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei138GTP; via amide nitrogenBy similarity1
Binding sitei288GTPBy similarity1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Nucleotide bindingi30 – 37GTPBy similarity8
Nucleotide bindingi218 – 226GTPBy similarity9

GO - Molecular functioni

  • GTP binding Source: SGD

GO - Biological processi

  • actomyosin contractile ring assembly Source: SGD
  • barrier septum assembly Source: SGD
  • cellular bud neck septin ring organization Source: SGD
  • endoplasmic reticulum polarization Source: SGD
  • exit from mitosis Source: SGD
  • G1/S transition of mitotic cell cycle Source: SGD
  • protein localization to bud neck Source: SGD
  • septin ring assembly Source: SGD

Keywordsi

Biological processCell cycle, Cell division
LigandGTP-binding, Nucleotide-binding

Enzyme and pathway databases

BioCyciYEAST:G3O-29605-MONOMER.

Names & Taxonomyi

Protein namesi
Recommended name:
Seventh homolog of septin 1
Alternative name(s):
Septation protein 7
Gene namesi
Name:SHS1
Synonyms:SEP7
Ordered Locus Names:YDL225W
OrganismiSaccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)
Taxonomic identifieri559292 [NCBI]
Taxonomic lineageiEukaryotaFungiDikaryaAscomycotaSaccharomycotinaSaccharomycetesSaccharomycetalesSaccharomycetaceaeSaccharomyces
Proteomesi
  • UP000002311 Componenti: Chromosome IV

Organism-specific databases

EuPathDBiFungiDB:YDL225W.
SGDiS000002384. SHS1.

Subcellular locationi

GO - Cellular componenti

  • cellular bud neck septin ring Source: SGD
  • membrane Source: UniProtKB-SubCell

Keywords - Cellular componenti

Membrane

Pathology & Biotechi

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Mutagenesisi426K → R: Abolishes sumoylation in vitro; when associated with R-437. 1 Publication1
Mutagenesisi437K → R: Abolishes sumoylation in vitro; when associated with R-426. 1 Publication1

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Initiator methionineiRemovedCombined sources
ChainiPRO_00001735452 – 551Seventh homolog of septin 1Add BLAST550

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei2N-acetylserineCombined sources1
Modified residuei400PhosphotyrosineCombined sources1
Modified residuei408PhosphoserineCombined sources1
Modified residuei416PhosphoserineCombined sources1
Cross-linki426Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO)
Cross-linki437Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO)
Modified residuei447PhosphoserineCombined sources1
Modified residuei460PhosphoserineCombined sources1
Modified residuei519PhosphoserineCombined sources1
Modified residuei520PhosphoserineCombined sources1
Modified residuei522PhosphoserineCombined sources1
Modified residuei525PhosphoserineCombined sources1
Modified residuei539PhosphothreonineCombined sources1
Modified residuei545PhosphoserineCombined sources1
Modified residuei548PhosphoserineCombined sources1

Post-translational modificationi

Phosphorylated by GIN4 and CLA4. Phosphorylation state is essential for septin ring dynamics during telophase.2 Publications
Sumoylated during mitosis on the mother cell side of the bud neck. Sumoylation probably plays a central role in regulating septin ring disassembly during the cell cycle.1 Publication

Keywords - PTMi

Acetylation, Isopeptide bond, Phosphoprotein, Ubl conjugation

Proteomic databases

MaxQBiQ07657.
PRIDEiQ07657.

PTM databases

iPTMnetiQ07657.

Interactioni

Subunit structurei

Component of the septin complex which consists of CDC3, CDC10, CDC11, CDC12 and probably SHS1 and rearranges to a cortical collar of highly ordered filaments at the mother-bud-neck. A complex formed by CDC3, CDC10, CDC11 and CDC12 is capable of forming long filaments in vitro and the components seem to be present in a 2:2:2:2 arrangement in vivo. The filaments are proposed to be formed by the end-to-end polymerization of CDC3-CDC12-CDC11 complexes with CDC10 serving as a bridge to bundle the polymers into paired filaments. Component of the GIN4 complex composed of at least BNI5, CDC3, CDC10, CDC11, CDC12, GIN4, NAP1 and SHS1. Self-associates. Interacts with CDC11 and SPA2.4 Publications

Binary interactionsi

Show more details

Protein-protein interaction databases

BioGridi31885. 262 interactors.
DIPiDIP-5596N.
ELMiQ07657.
IntActiQ07657. 22 interactors.
MINTiMINT-542688.
STRINGi4932.YDL225W.

Structurei

3D structure databases

ProteinModelPortaliQ07657.
SMRiQ07657.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini20 – 339Septin-type GAdd BLAST320

Coiled coil

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Coiled coili418 – 518Sequence analysisAdd BLAST101

Sequence similaritiesi

Keywords - Domaini

Coiled coil

Phylogenomic databases

GeneTreeiENSGT00880000138554.
HOGENOMiHOG000233586.
InParanoidiQ07657.
KOiK16946.
OMAiYLKQQFD.
OrthoDBiEOG092C3HL6.

Family and domain databases

CDDicd01850. CDC_Septin. 1 hit.
InterProiView protein in InterPro
IPR030379. G_SEPTIN_dom.
IPR027417. P-loop_NTPase.
IPR016491. Septin.
PANTHERiPTHR18884. PTHR18884. 1 hit.
PfamiView protein in Pfam
PF00735. Septin. 1 hit.
PIRSFiPIRSF006698. Septin. 1 hit.
SUPFAMiSSF52540. SSF52540. 2 hits.
PROSITEiView protein in PROSITE
PS51719. G_SEPTIN. 1 hit.

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

Q07657-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSTASTPPIN LFRRKKEHKR GITYTMLLCG PAGTGKTAFA NNLLETKIFP
60 70 80 90 100
HKYQYGKSNA SISSNPEVKV IAPTKVVSFN SKNGIPSYVS EFDPMRANLE
110 120 130 140 150
PGITITSTSL ELGGNKDQGK PEMNEDDTVF FNLIMTHGIG ENLDDSLCSE
160 170 180 190 200
EVMSYLEQQF DIVLAEETRI KRNPRFEDTR VHVALYFIEP TGHGLREVDV
210 220 230 240 250
ELMKSISKYT NVLPIITRAD SFTKEELTQF RKNIMFDVER YNVPIYKFEV
260 270 280 290 300
DPEDDDLESM EENQALASLQ PFAIITSDTR DSEGRYVREY PWGIISIDDD
310 320 330 340 350
KISDLKVLKN VLFGSHLQEF KDTTQNLLYE NYRSEKLSSV ANAEEIGPNS
360 370 380 390 400
TKRQSNAPSL SNFASLISTG QFNSSQTLAN NLRADTPRNQ VSGNFKENEY
410 420 430 440 450
EDNGEHDSAE NEQEMSPVRQ LGREIKQENE NLIRSIKTES SPKFLNSPDL
460 470 480 490 500
PERTKLRNIS ETVPYVLRHE RILARQQKLE ELEAQSAKEL QKRIQELERK
510 520 530 540 550
AHELKLREKL INQNKLNGSS SSINSLQQST RSQIKKNDTY TDLASIASGR

D
Length:551
Mass (Da):62,630
Last modified:November 1, 1997 - v1
Checksum:iBDA2631061A278F9
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
Z74273 Genomic DNA. Translation: CAA98804.1.
BK006938 Genomic DNA. Translation: DAA11640.1.
PIRiS67788.
RefSeqiNP_010056.1. NM_001180285.1.

Genome annotation databases

EnsemblFungiiYDL225W; YDL225W; YDL225W.
GeneIDi851373.
KEGGisce:YDL225W.

Similar proteinsi

Entry informationi

Entry nameiSHS1_YEAST
AccessioniPrimary (citable) accession number: Q07657
Secondary accession number(s): D6VRD0
Entry historyiIntegrated into UniProtKB/Swiss-Prot: November 1, 1997
Last sequence update: November 1, 1997
Last modified: August 30, 2017
This is version 160 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programFungal Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
  2. Yeast
    Yeast (Saccharomyces cerevisiae): entries, gene names and cross-references to SGD
  3. Yeast chromosome IV
    Yeast (Saccharomyces cerevisiae) chromosome IV: entries and gene names