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protein coding gene - orb6 (SPAC821.12) - serine/threonine protein kinase Orb6

Gene summary

Standard name
orb6
Systematic ID
SPAC821.12
Product
serine/threonine protein kinase Orb6
Organism
Schizosaccharomyces pombe (fission yeast)
UniProt ID
O13310
ORFeome ID
45/45F06
Characterisation status
biological role published
Feature type
mRNA gene
Genomic location
chromosome I: 1008263..1010318 forward strand

Annotation

GO biological process

GO:0071472 - cellular response to salt stress

References:

GO:0030866 - cortical actin cytoskeleton organization

References:

GO:0030950 - establishment or maintenance of actin cytoskeleton polarity

References:

GO:0097248 - maintenance of protein location in cell cortex of cell tip

References:

GO:2000247 - positive regulation of establishment or maintenance of bipolar cell polarity regulating cell shape

References:

GO:0045921 - positive regulation of exocytosis

References:

GO:0062200 - RAM/MOR signaling

References:

GO:2000100 - regulation of establishment or maintenance of bipolar cell polarity regulating cell shape

References:

GO:0032995 - regulation of fungal-type cell wall biogenesis

References:

GO:0070507 - regulation of microtubule cytoskeleton organization

References:

GO:0000226 - microtubule cytoskeleton organization

References:

GO cellular component

GO:0051285 - cell cortex of cell tip

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GO:0032153 - cell division site

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GO:0005829 - cytosol

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GO:0035838 - growing cell tip

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GO:0005634 - nucleus

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GO molecular function

GO:0005515 - protein binding

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GO:0004674 - protein serine/threonine kinase activity

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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:01148 - ubiquitinylated lysine

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Multi-locus phenotype

FYPO:0004105 - abolished polar cell growth

References:

Genotypes:

FYPO:0001800 - abolished protein localization to cell tip, with protein distributed in plasma membrane or cortex

References:

Genotypes:

FYPO:0000272 - abolished septum assembly

References:

Genotypes:

FYPO:0001223 - binucleate multiseptate vegetative cell

References:

Genotypes:

FYPO:0004572 - decreased exocytosis during vegetative growth

References:

Genotypes:

FYPO:0001355 - decreased vegetative cell population growth

References:

Genotypes:

FYPO:0002021 - dispersed actin cortical patch localization during vegetative growth

References:

Genotypes:

FYPO:0000650 - increased septation index

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Genotypes:

FYPO:0002187 - inviable normal volume spheroid vegetative cell

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Genotypes:

FYPO:0002482 - inviable spheroid vegetative cell

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Genotypes:

FYPO:0006262 - inviable stubby binucleate vegetative cell

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Genotypes:

FYPO:0003989 - inviable stubby mononucleate vegetative cell

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Genotypes:

FYPO:0002191 - inviable swollen septated spheroid vegetative cell

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Genotypes:

FYPO:0002061 - inviable vegetative cell population

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Genotypes:

FYPO:0000224 - lemon-shaped cell

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Genotypes:

FYPO:0008233 - microtubule bundles present in normal numbers

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Genotypes:

FYPO:0000012 - mitotic G2/M phase transition delay

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Genotypes:

FYPO:0000118 - multiseptate vegetative cell

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Genotypes:

FYPO:0004097 - normal actomyosin contractile ring contraction

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Genotypes:

FYPO:0006876 - normal protein localization to cell cortex of cell tip

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Genotypes:

FYPO:0001357 - normal vegetative cell population growth

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Genotypes:

FYPO:0000021 - spheroid vegetative cell

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Genotypes:

FYPO:0000024 - stubby vegetative cell

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Genotypes:

FYPO:0000647 - vegetative cell lysis

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Genotypes:

FYPO:0006822 - viable small vegetative cell with normal cell growth rate

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Genotypes:

FYPO:0002380 - viable spheroid vegetative cell

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Genotypes:

Protein features

PBO:0111753 - Ndr kinase/myotonic dystrophy kinase/cot1/warts family

Qualitative gene expression

PomGeneEx:0000018 - protein level increased

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Quantitative gene expression

PBO:0006310 - protein level

References:

PBO:0011963 - RNA level

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Single locus phenotype

FYPO:0000190 - abnormal actin cortical patch localization during vegetative growth

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Genotypes:

FYPO:0000350 - abnormal actin cytoskeleton morphology during vegetative growth

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Genotypes:

FYPO:0000727 - abnormal actin filament organization during vegetative growth

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Genotypes:

FYPO:0001530 - abnormal GTPase activity

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Genotypes:

FYPO:0004315 - abnormal microtubule cytoskeleton during vegetative growth

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Genotypes:

FYPO:0001418 - abnormal microtubule cytoskeleton morphology during vegetative growth

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Genotypes:

FYPO:0006497 - abnormal plasma membrane phosphatidylserine distribution

References:

Genotypes:

FYPO:0004105 - abolished polar cell growth

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Genotypes:

FYPO:0000930 - abolished protein localization to cell cortex during vegetative growth

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Genotypes:

FYPO:0001880 - abolished protein localization to cell division site

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Genotypes:

FYPO:0003329 - abolished protein localization to cell tip during mitotic interphase

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Genotypes:

FYPO:0002859 - abolished protein localization to non-growing cell tip

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Genotypes:

FYPO:0004562 - binucleate aseptate vegetative cell

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Genotypes:

FYPO:0001223 - binucleate multiseptate vegetative cell

References:

Genotypes:

FYPO:0000082 - decreased cell population growth at high temperature

References:

Genotypes:

FYPO:0006746 - decreased cell wall thickness at cell tip during vegetative growth

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Genotypes:

FYPO:0006330 - decreased endoplasmic reticulum-plasma membrane tethering

References:

Genotypes:

FYPO:0004572 - decreased exocytosis during vegetative growth

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Genotypes:

FYPO:0006637 - decreased protein localization to cell cortex of cell tip, with protein distributed in cortex

References:

Genotypes:

FYPO:0006221 - decreased protein localization to cell division site, with protein mislocalized to cytoplasm

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Genotypes:

FYPO:0001586 - decreased protein localization to cell tip during vegetative growth

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Genotypes:

FYPO:0002557 - decreased protein localization to medial cortex during vegetative growth

References:

Genotypes:

FYPO:0001355 - decreased vegetative cell population growth

References:

Genotypes:

FYPO:0002021 - dispersed actin cortical patch localization during vegetative growth

References:

Genotypes:

FYPO:0001949 - increased cytosolic calcium level

References:

Genotypes:

FYPO:0003532 - increased monopolar index

References:

Genotypes:

FYPO:0002700 - increased protein kinase activity

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Genotypes:

FYPO:0000650 - increased septation index

References:

Genotypes:

FYPO:0007390 - increased variability of angle of spindle pole body-led chromosome movement during mitotic interphase

References:

Genotypes:

FYPO:0005319 - inviable after spore germination, multiple cell divisions, spherical cell with cell lysis

References:

Genotypes:

FYPO:0002187 - inviable normal volume spheroid vegetative cell

References:

Genotypes:

FYPO:0002191 - inviable swollen septated spheroid vegetative cell

References:

Genotypes:

FYPO:0002061 - inviable vegetative cell population

References:

Genotypes:

FYPO:0002401 - microtubule bundles present in increased numbers

References:

Genotypes:

FYPO:0007388 - misoriented mitotic spindle

References:

Genotypes:

FYPO:0000012 - mitotic G2/M phase transition delay

References:

Genotypes:

FYPO:0001221 - normal nucleus:cytoplasm ratio

References:

Genotypes:

FYPO:0003076 - normal protein autophosphorylation during vegetative growth

References:

Genotypes:

FYPO:0000833 - normal protein level during vegetative growth

References:

Genotypes:

FYPO:0003627 - normal protein localization

References:

Genotypes:

FYPO:0002442 - normal protein localization to cell division site

References:

Genotypes:

FYPO:0002558 - normal protein localization to medial cortex during vegetative growth

References:

Genotypes:

FYPO:0002999 - normal protein localization to medial cortical node

References:

Genotypes:

FYPO:0002967 - normal protein localization to mitotic spindle pole body

References:

Genotypes:

FYPO:0003330 - normal protein localization to new mitotic spindle pole body

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Genotypes:

FYPO:0008003 - normal protein localization to site of mechanical stress

References:

Genotypes:

FYPO:0004730 - protein mislocalized to lateral cell cortex

References:

Genotypes:

FYPO:0000789 - sensitive to 1-NA-PP1

References:

Genotypes:

FYPO:0000091 - sensitive to thiabendazole

References:

Genotypes:

FYPO:0000021 - spheroid vegetative cell

References:

Genotypes:

FYPO:0000024 - stubby vegetative cell

References:

Genotypes:

FYPO:0001492 - viable elongated vegetative cell

References:

Genotypes:

FYPO:0004103 - viable spherical vegetative cell

References:

Genotypes:

FYPO:0002380 - viable spheroid vegetative cell

References:

Genotypes:

FYPO:0001491 - viable vegetative cell

References:

Genotypes:

FYPO:0002060 - viable vegetative cell population

References:

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
PF00069PkinaseProt_kinase_domPFAM
cd21773MobB_CBK1CDD
cd05629STKc_NDR_like_fungalCDD
PS00107PROTEIN_KINASE_ATPProtein_kinase_ATP_BSPROSITE_PATTERNS
PS00108PROTEIN_KINASE_STSer/Thr_kinase_ASPROSITE_PATTERNS
PS51285AGC_KINASE_CTERAGC-kinase_CPROSITE_PROFILES
PS50011PROTEIN_KINASE_DOMProt_kinase_domPROSITE_PROFILES
SM00133pkinase_C_6AGC-kinase_CSMART
SM00220serkin_6Prot_kinase_domSMART
G3DSA:3.30.200.20:FF:000192FUNFAM
G3DSA:1.10.510.10:FF:000024FUNFAM
SSF56112Protein kinase-like (PK-like)Kinase-like_dom_sfSUPERFAMILY
G3DSA:3.30.200.20Phosphorylase Kinase; domain 1GENE3D
G3DSA:1.10.510.10Transferase(Phosphotransferase) domain 1GENE3D
PTHR22988MYOTONIC DYSTROPHY S/T KINASE-RELATEDRho-assoc_Ser/Thr_KinasePANTHER

Orthologs

References / Literature

PMID:8522609 - Fission yeast cell morphogenesis: identification of new genes and analysis of their role during the cell cycle.
Verde F et al. J Cell Biol 1995 Dec;131(6 Pt 1):1529-38
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:12529446 - Gef1p, a new guanine nucleotide exchange factor for Cdc42p, regulates polarity in Schizosaccharomyces pombe.
Coll PM et al. Mol Biol Cell 2003 Jan;14(1):313-23
PMID:12646585 - Control of cell polarity in fission yeast by association of Orb6p kinase with the highly conserved protein methyltransferase Skb1p.
Wiley DJ et al. J Biol Chem 2003 Jul 04;278(27):25256-63
PMID:38442865 - The fission yeast NDR kinase Orb6 and its signalling pathway MOR regulate cytoplasmic microtubule organization during the cell cycle.
Kume K et al. Open Biol 2024 Mar;14(3):230440
PMID:12456722 - Mob2p interacts with the protein kinase Orb6p to promote coordination of cell polarity with cell cycle progression.
Hou MC et al. J Cell Sci 2003 Jan 01;116(Pt 1):125-35
PMID:27474797 - Spatial control of translation repression and polarized growth by conserved NDR kinase Orb6 and RNA-binding protein Sts5.
Nuñez I et al. Elife 2016 Jul 30;5
PMID:20805322 - The mitosis-to-interphase transition is coordinated by cross talk between the SIN and MOR pathways in Schizosaccharomyces pombe.
Ray S et al. J Cell Biol 2010 Sep 06;190(5):793-805
PMID:12234926 - Fission yeast Mor2/Cps12, a protein similar to Drosophila Furry, is essential for cell morphogenesis and its mutation induces Wee1-dependent G(2) delay.
Hirata D et al. EMBO J 2002 Sep 16;21(18):4863-74
PMID:16096637 - Fission yeast MO25 protein is localized at SPB and septum and is essential for cell morphogenesis.
Kanai M et al. EMBO J 2005 Sep 07;24(17):3012-25
PMID:23615447 - Compartmentalized nodes control mitotic entry signaling in fission yeast.
Deng L et al. Mol Biol Cell 2013 Jun;24(12):1872-81
PMID:34296454 - The TOR-dependent phosphoproteome and regulation of cellular protein synthesis.
Mak T et al. EMBO J 2021 Aug 16;40(16):e107911
PMID:9636183 - Fission yeast orb6, a ser/thr protein kinase related to mammalian rho kinase and myotonic dystrophy kinase, is required for maintenance of cell polarity and coordinates cell morphogenesis with the cell cycle.
Verde F et al. Proc Natl Acad Sci U S A 1998 Jun 23;95(13):7526-31
PMID:27852900 - Gradients of phosphatidylserine contribute to plasma membrane charge localization and cell polarity in fission yeast.
Haupt A et al. Mol Biol Cell 2017 Jan 01;28(1):210-220
PMID:17377067 - Regulation of cell diameter, For3p localization, and cell symmetry by fission yeast Rho-GAP Rga4p.
Das M et al. Mol Biol Cell 2007 Jun;18(6):2090-101
PMID:16325501 - The fission yeast MO25 protein functions in polar growth and cell separation.
Mendoza M et al. Eur J Cell Biol 2005 Dec;84(12):915-26
PMID:39367033 - Quantitative proteomics and phosphoproteomics profiling of meiotic divisions in the fission yeast Schizosaccharomyces pombe.
Sivakova B et al. Sci Rep 2024 Oct 04;14(1):23105
PMID:20826805 - Fission yeast germinal center (GC) kinase Ppk11 interacts with Pmo25 and plays an auxiliary role in concert with the morphogenesis Orb6 network (MOR) in cell morphogenesis.
Goshima T et al. J Biol Chem 2010 Nov 05;285(45):35196-205
PMID:23051734 - Myosin Vs organize actin cables in fission yeast.
Lo Presti L et al. Mol Biol Cell 2012 Dec;23(23):4579-91
PMID:25422470 - Oscillatory AAA+ ATPase Knk1 constitutes a novel morphogenetic pathway in fission yeast.
Scheffler K et al. Proc Natl Acad Sci U S A 2014 Dec 16;111(50):17899-904
PMID:29290560 - ER-PM Contacts Restrict Exocytic Sites for Polarized Morphogenesis.
Ng AYE et al. Curr Biol 2018 Jan 08;28(1):146-153.e5
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
PMID:17317928 - A method for Pmo25-associated kinase assay in fission yeast: the activity is dependent on two gC kinases Nak1 and Sid1.
Kume K et al. Biosci Biotechnol Biochem 2007 Feb;71(2):615-7
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:34282727 - Pak1 kinase controls cell shape through ribonucleoprotein granules.
Magliozzi JO et al. Elife 2021 Jul 20;10
PMID:22629372 - Conserved Orb6 phosphorylation sites are essential for polarized cell growth in Schizosaccharomyces pombe.
Liu G et al. PLoS One 2012;7(5):e37221
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:29996109 - Quantitative Phosphoproteomics Reveals the Signaling Dynamics of Cell-Cycle Kinases in the Fission Yeast Schizosaccharomyces pombe.
Swaffer MP et al. Cell Rep 2018 Jul 10;24(2):503-514
PMID:34666001 - Detection of surface forces by the cell-wall mechanosensor Wsc1 in yeast.
Neeli-Venkata R et al. Dev Cell 2021 Oct 25;56(20):2856-2870.e7
PMID:35099006 - Fission yeast polycystin Pkd2p promotes cell size expansion and antagonizes the Hippo-related SIN pathway.
Sinha D et al. J Cell Sci 2022 Feb 15;135(4)
PMID:23649273 - Fission yeast leucine-rich repeat protein Lrp1 is essential for cell morphogenesis as a component of the morphogenesis Orb6 network (MOR).
Kume K et al. Biosci Biotechnol Biochem 2013;77(5):1086-91
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:19646873 - The conserved NDR kinase Orb6 controls polarized cell growth by spatial regulation of the small GTPase Cdc42.
Das M et al. Curr Biol 2009 Aug 11;19(15):1314-9
PMID:17998401 - Nuclear size control in fission yeast.
Neumann FR et al. J Cell Biol 2007 Nov 19;179(4):593-600
PMID:24972934 - Cross talk between NDR kinase pathways coordinates cytokinesis with cell separation in Schizosaccharomyces pombe.
Gupta S et al. Eukaryot Cell 2014 Aug;13(8):1104-12
PMID:26246599 - Phosphorylation-dependent inhibition of Cdc42 GEF Gef1 by 14-3-3 protein Rad24 spatially regulates Cdc42 GTPase activity and oscillatory dynamics during cell morphogenesis.
Das M et al. Mol Biol Cell 2015 Oct 01;26(19):3520-34
PMID:36200871 - Membrane stretching activates calcium permeability of a putative channel Pkd2 during fission yeast cytokinesis.
Poddar A et al. Mol Biol Cell 2022 Dec 01;33(14):ar134
PMID:21511999 - Comparative functional genomics of the fission yeasts.
Rhind N et al. Science 2011 May 20;332(6032):930-6
PMID:19474789 - A spatial gradient coordinates cell size and mitotic entry in fission yeast.
Moseley JB et al. Nature 2009 Jun 11;459(7248):857-60
PMID:37970674 - SUMOylation regulates Lem2 function in centromere clustering and silencing.
Strachan J et al. J Cell Sci 2023 Dec 01;136(23)
PMID:29689193 - Mechanosensation Dynamically Coordinates Polar Growth and Cell Wall Assembly to Promote Cell Survival.
Davì V et al. Dev Cell 2018 Apr 23;45(2):170-182.e7
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:18495844 - Interphase microtubule bundles use global cell shape to guide spindle alignment in fission yeast.
Daga RR et al. J Cell Sci 2008 Jun 15;121(Pt 12):1973-80
PMID:40931936 - Oligomerization and exocyst coupling underlie Spa2-mediated focusing of polarized growth in fission yeast.
Ren L et al. J Cell Sci 2025 Sep 01;138(17)
PMID:42017229 - Temperature-specific regulation of the NDR kinase Orb6 by the MAPK Sty1 to promote heat stress resilience.
Doyle LP et al. J Cell Sci 2026 Apr 15;139(8)