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protein coding gene - spi1 (SPBC1289.03c) - Ran GTPase Spi1

Gene summary

Standard name
spi1
Systematic ID
SPBC1289.03c
Product
Ran GTPase Spi1
Organism
Schizosaccharomyces pombe (fission yeast)
UniProt ID
P28748
ORFeome ID
40/40B10
Characterisation status
biological role published
Feature type
mRNA gene
Genomic location
chromosome II: 4386149..4387361 reverse strand

Annotation

Complementation

PBO:0014296 - functionally complemented by N. tabacum Ran-AI

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GO biological process

GO:0016973 - poly(A)+ mRNA export from nucleus

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GO:0006606 - protein import into nucleus

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GO:0000054 - ribosomal subunit export from nucleus

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GO cellular component

GO:0005829 - cytosol

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GO:0005634 - nucleus

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GO molecular function

GO:0005525 - GTP binding

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GO:0003924 - GTPase activity

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GO:0005515 - protein binding

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Modification

MOD:00046 - O-phospho-L-serine

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MOD:00047 - O-phospho-L-threonine

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MOD:01149 - sumoylated lysine

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MOD:01148 - ubiquitinylated lysine

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Multi-locus phenotype

FYPO:0002061 - inviable vegetative cell population

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Genotypes:

FYPO:0002060 - viable vegetative cell population

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Genotypes:

Qualitative gene expression

PomGeneEx:0000019 - protein level decreased

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PomGeneEx:0000027 - ribosomal density decreased

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PomGeneEx:0000012 - RNA level decreased

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Quantitative gene expression

PBO:0006310 - protein level

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PBO:0011963 - RNA level

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Single locus phenotype

FYPO:0001355 - decreased vegetative cell population growth

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Genotypes:

FYPO:0001919 - fragmented nucleus during vegetative growth

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Genotypes:

FYPO:0000340 - haploinsufficient

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Genotypes:

FYPO:0001386 - increased haploidization

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Genotypes:

FYPO:0000311 - inviable after spore germination with normal, unseptated germ tube morphology

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Genotypes:

FYPO:0002151 - inviable spore

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Genotypes:

FYPO:0002061 - inviable vegetative cell population

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Genotypes:

FYPO:0001252 - multinucleate multiseptate vegetative cell

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Genotypes:

FYPO:0002901 - normal protein localization to kinetochore during vegetative growth

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Genotypes:

FYPO:0004434 - sensitive to 4-amino-1-methyl-1H-imidazole-5-carboselenoamide

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Genotypes:

FYPO:0004435 - sensitive to tingenone

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Genotypes:

FYPO:0001234 - slow vegetative cell population growth

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Genotypes:

Taxonomic conservation

PBO:0011065 - conserved in eukaryotes

PBO:0011071 - conserved in eukaryotes only

PBO:0011064 - conserved in fungi

PBO:0011069 - conserved in metazoa

PBO:0011070 - conserved in vertebrates

PBO:0006222 - predominantly single copy (one to one)

Protein features

IDNameInterPro nameDB name
PF00071RasSmall_GTPasePFAM
cd00877RanRan_GTPaseCDD
PS51419RABPROSITE_PROFILES
PS51421RASSmall_GTPasePROSITE_PROFILES
PS51418RANRan_GTPasePROSITE_PROFILES
SM00176ran_sub_2SMART
SM00174rho_sub_3Small_GTPaseSMART
SM00173ras_sub_4SMART
SM00175rab_sub_5SMART
PR00627GTPRANTC4Ran_GTPasePRINTS
G3DSA:3.40.50.300:FF:000131FUNFAM
SSF52540P-loop containing nucleoside triphosphate hydrolasesP-loop_NTPaseSUPERFAMILY
G3DSA:3.40.50.300P-loop_NTPaseGENE3D
PTHR24071RAN GTPASERan_GTPasePANTHER
TIGR00231small_GTPSmall_GTP-bdNCBIFAM

Orthologs

References / Literature

PMID:19680239 - Structures of the tRNA export factor in the nuclear and cytosolic states.
Cook AG et al. Nature 2009 Sep 03;461(7260):60-5
PMID:37970674 - SUMOylation regulates Lem2 function in centromere clustering and silencing.
Strachan J et al. J Cell Sci 2023 Dec 01;136(23)
PMID:9504913 - The identification of cDNAs that affect the mitosis-to-interphase transition in Schizosaccharomyces pombe, including sbp1, which encodes a spi1p-GTP-binding protein.
He X et al. Genetics 1998 Feb;148(2):645-56
PMID:7987414 - Phenotype of the fission yeast cell cycle regulatory mutant pim1-46 is suppressed by a tobacco cDNA encoding a small, Ran-like GTP-binding protein.
Merkle T et al. Plant J 1994 Oct;6(4):555-65
PMID:18257517 - Phosphoproteome analysis of fission yeast.
Wilson-Grady JT et al. J Proteome Res 2008 Mar;7(3):1088-97
PMID:39705284 - Proteomic and phosphoproteomic analyses reveal that TORC1 is reactivated by pheromone signaling during sexual reproduction in fission yeast.
Bérard M et al. PLoS Biol 2024 Dec 20;22(12):e3002963
GO_REF:0000033 - Annotation inferences using phylogenetic trees
PMID:21386897 - Systematic two-hybrid and comparative proteomic analyses reveal novel yeast pre-mRNA splicing factors connected to Prp19.
Ren L et al. PLoS One 2011 Feb 28;6(2):e16719
PMID:16371130 - Loss of RanGEF/Pim1 activity abolishes the orchestration of Ran-mediated mitotic cellular events in S. pombe.
Hirose E et al. Genes Cells 2006 Jan;11(1):29-46
PMID:1855255 - Premature initiation of mitosis in yeast lacking RCC1 or an interacting GTPase.
Matsumoto T et al. Cell 1991 Jul 26;66(2):347-60
PMID:21511999 - Comparative functional genomics of the fission yeasts.
Rhind N et al. Science 2011 May 20;332(6032):930-6
PMID:18600047 - Genome-wide identification of haploinsufficiency in fission yeast.
Baek ST et al. J Microbiol Biotechnol 2008 Jun;18(6):1059-63
PMID:24013502 - Epe1 recruits BET family bromodomain protein Bdf2 to establish heterochromatin boundaries.
Wang J et al. Genes Dev 2013 Sep 01;27(17):1886-902
PMID:24713849 - Post-transcriptional regulation of meiotic genes by a nuclear RNA silencing complex.
Egan ED et al. RNA 2014 Jun;20(6):867-81
PMID:15371542 - The fission yeast kinetochore component Spc7 associates with the EB1 family member Mal3 and is required for kinetochore-spindle association.
Kerres A et al. Mol Biol Cell 2004 Dec;15(12):5255-67
PMID:18204818 - Identification of small molecules inducing apoptosis by cell-based assay using fission yeast deletion mutants.
Chung KS et al. Invest New Drugs 2008 Aug;26(4):299-307
PMID:11086011 - The fission yeast ran GTPase is required for microtubule integrity.
Fleig U et al. J Cell Biol 2000 Nov 27;151(5):1101-11
PMID:23101633 - Quantitative analysis of fission yeast transcriptomes and proteomes in proliferating and quiescent cells.
Marguerat S et al. Cell 2012 Oct 26;151(3):671-83
PMID:24763107 - Absolute proteome and phosphoproteome dynamics during the cell cycle of Schizosaccharomyces pombe (Fission Yeast).
Carpy A et al. Mol Cell Proteomics 2014 Aug;13(8):1925-36
PMID:30726745 - Fission Yeast NDR/LATS Kinase Orb6 Regulates Exocytosis via Phosphorylation of the Exocyst Complex.
Tay YD et al. Cell Rep 2019 Feb 05;26(6):1654-1667.e7
PMID:23697806 - A genome-wide resource of cell cycle and cell shape genes of fission yeast.
Hayles J et al. Open Biol 2013 May 22;3(5):130053
PMID:1844237 - Spi1 GTPase interacts with RCC1 to maintain interdependency of cell cycle events.
Matsumoto T et al. Princess Takamatsu Symp 1991;22:145-52
PMID:26537787 - Targeting of SUMO substrates to a Cdc48-Ufd1-Npl4 segregase and STUbL pathway in fission yeast.
Køhler JB et al. Nat Commun 2015 Nov 05;6:8827
PMID:8887664 - Perturbations in the spi1p GTPase cycle of Schizosaccharomyces pombe through its GTPase-activating protein and guanine nucleotide exchange factor components result in similar phenotypic consequences.
Matynia A et al. Mol Cell Biol 1996 Nov;16(11):6352-62
PMID:12376568 - An evolutionarily conserved fission yeast protein, Ned1, implicated in normal nuclear morphology and chromosome stability, interacts with Dis3, Pim1/RCC1 and an essential nucleoporin.
Tange Y et al. J Cell Sci 2002 Nov 15;115(Pt 22):4375-85
PMID:16823372 - ORFeome cloning and global analysis of protein localization in the fission yeast Schizosaccharomyces pombe.
Matsuyama A et al. Nat Biotechnol 2006 Jul;24(7):841-7
GO_REF:0000050 - Manual transfer of GO annotation data to genes by curator judgment of sequence model
PMID:10394366 - The crystal structure of rna1p: a new fold for a GTPase-activating protein.
Hillig RC et al. Mol Cell 1999 Jun;3(6):781-91
PMID:26771498 - A Proteome-wide Fission Yeast Interactome Reveals Network Evolution Principles from Yeasts to Human.
Vo TV et al. Cell 2016 Jan 14;164(1-2):310-323
PMID:39358553 - Ageing-associated long non-coding RNA extends lifespan and reduces translation in non-dividing cells.
Anver S et al. EMBO Rep 2024 Oct 02;
PMID:9560394 - Isolation and characterization of fission yeast sns mutants defective at the mitosis-to-interphase transition.
Matynia A et al. Genetics 1998 Apr;148(4):1799-811
PMID:17476213 - Alp7/TACC is a crucial target in Ran-GTPase-dependent spindle formation in fission yeast.
Sato M et al. Nature 2007 May 17;447(7142):334-7
PMID:27984744 - Survival in Quiescence Requires the Euchromatic Deployment of Clr4/SUV39H by Argonaute-Associated Small RNAs.
Joh RI et al. Mol Cell 2016 Dec 15;64(6):1088-1101
PMID:18422602 - Schizosaccharomyces pombe Snf2SR, a novel SNF2 family protein, interacts with Ran GTPase and modulates both RanGEF and RanGAP activities.
Ohba T et al. Genes Cells 2008 Jun;13(6):571-82
PMID:30824696 - Systematic analysis reveals the prevalence and principles of bypassable gene essentiality.
Li J et al. Nat Commun 2019 Mar 01;10(1):1002
PMID:40015273 - A comprehensive Schizosaccharomyces pombe atlas of physical transcription factor interactions with proteins and chromatin.
Skribbe M et al. Mol Cell 2025 Feb 19;
PMID:8896453 - Dis3, implicated in mitotic control, binds directly to Ran and enhances the GEF activity of RCC1.
Noguchi E et al. EMBO J 1996 Oct 15;15(20):5595-605
PMID:17651922 - Identification of novel suppressors for Mog1 implies its involvement in RNA metabolism, lipid metabolism and signal transduction.
Oki M et al. Gene 2007 Oct 01;400(1-2):114-21
PMID:28218250 - Chromatin remodeller Fun30 Fft3 induces nucleosome disassembly to facilitate RNA polymerase II elongation.
Lee J et al. Nat Commun 2017 Feb 20;8:14527
PMID:8313905 - A fission yeast RCC1-related protein is required for the mitosis to interphase transition.
Sazer S et al. EMBO J 1994 Feb 01;13(3):606-15
PMID:33313903 - Ribosome profiling reveals ribosome stalling on tryptophan codons and ribosome queuing upon oxidative stress in fission yeast.
Rubio A et al. Nucleic Acids Res 2021 Jan 11;49(1):383-399
PMID:26152728 - A Two-step Protein Quality Control Pathway for a Misfolded DJ-1 Variant in Fission Yeast.
Mathiassen SG et al. J Biol Chem 2015 Aug 21;290(34):21141-21153
PMID:26412298 - A Degenerate Cohort of Yeast Membrane Trafficking DUBs Mediates Cell Polarity and Survival.
Beckley JR et al. Mol Cell Proteomics 2015 Dec;14(12):3132-41
PMID:20473289 - Analysis of a genome-wide set of gene deletions in the fission yeast Schizosaccharomyces pombe.
Kim DU et al. Nat Biotechnol 2010 Jun;28(6):617-623
PMID:11290708 - Fission yeast Mog1p homologue, which interacts with the small GTPase Ran, is required for mitosis-to-interphase transition and poly(A)(+) RNA metabolism.
Tatebayashi K et al. Genetics 2001 Apr;157(4):1513-22
PMID:8387358 - Interaction of the pim1/spi1 mitotic checkpoint with a protein phosphatase.
Matsumoto T et al. Mol Biol Cell 1993 Mar;4(3):337-45