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protein coding gene - bqt3 (SPCC594.07c) - bouquet formation protein Bqt3

Gene summary

Standard name
bqt3
Systematic ID
SPCC594.07c
Product
bouquet formation protein Bqt3
Organism
Schizosaccharomyces pombe (fission yeast)
UniProt ID
O74510
ORFeome ID
10/10E06
Characterisation status
biological role published
Feature type
mRNA gene
Genomic location
chromosome III: 367446..369017 reverse strand

Annotation

Comment

PBO:0005106 - degradation required to stabilize Bqt4 in the nuclear membrane

References:

GO biological process

GO:0045141 - meiotic telomere clustering

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GO cellular component

GO:0005789 - endoplasmic reticulum membrane

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GO:0005637 - nuclear inner membrane

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GO:1990862 - nuclear membrane complex Bqt3-Bqt4

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GO molecular function

GO:0140473 - telomere-nuclear envelope anchor activity

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Multi-locus phenotype

FYPO:0000835 - decreased protein level

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Genotypes:

FYPO:0001327 - increased protein level during vegetative growth

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Genotypes:

FYPO:0001420 - normal vegetative cell population growth rate

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Genotypes:

Protein sequence feature

SO:0000418 - signal_peptide

SO:0001812 - transmembrane_helix

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Qualitative gene expression

PomGeneEx:0000018 - protein level increased

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PomGeneEx:0000011 - RNA level increased

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PomGeneEx:0000014 - RNA present

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Quantitative gene expression

PBO:0011963 - RNA level

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Single locus phenotype

FYPO:0000151 - abnormal meiotic chromosome segregation

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Genotypes:

FYPO:0000172 - abnormal meiotic telomere clustering

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Genotypes:

FYPO:0002485 - decreased intergenic meiotic recombination

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Genotypes:

FYPO:0001324 - decreased protein level during vegetative growth

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Genotypes:

FYPO:0000581 - decreased spore germination frequency

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Genotypes:

FYPO:0005261 - increased cell population growth on galactose carbon source

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Genotypes:

FYPO:0004167 - increased cell population growth on glycerol carbon source

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Genotypes:

FYPO:0009094 - increased cell population growth on lysine and proline nitrogen source

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Genotypes:

FYPO:0002774 - increased level of ubiquitinated protein in cell during vegetative growth

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Genotypes:

FYPO:0001327 - increased protein level during vegetative growth

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Genotypes:

FYPO:0006518 - loss of viability in G0

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Genotypes:

FYPO:0007553 - normal G1 to G0 transition

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Genotypes:

FYPO:0001420 - normal vegetative cell population growth rate

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Genotypes:

FYPO:0001103 - resistance to hydrogen peroxide

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Genotypes:

FYPO:0003383 - resistance to tert-butyl hydroperoxide

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Genotypes:

FYPO:0001701 - sensitive to bortezomib

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Genotypes:

FYPO:0001501 - sensitive to brefeldin A

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Genotypes:

FYPO:0007931 - sensitive to egtazic acid

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Genotypes:

FYPO:0000842 - sensitive to ethanol during vegetative growth

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Genotypes:

FYPO:0000785 - sensitive to formamide

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Genotypes:

FYPO:0000088 - sensitive to hydroxyurea

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Genotypes:

FYPO:0001719 - sensitive to lithium

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Genotypes:

FYPO:0009086 - sensitive to lithium chloride and sodium dodecyl sulfate

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Genotypes:

FYPO:0000089 - sensitive to methyl methanesulfonate

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Genotypes:

FYPO:0002060 - viable vegetative cell population

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Genotypes:

FYPO:0002177 - viable vegetative cell with normal cell morphology

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Genotypes:

Taxonomic conservation

PBO:0011064 - conserved in fungi

PBO:0011063 - conserved in fungi only

PBO:0000055 - no apparent S. cerevisiae ortholog

Protein features

IDNameInterPro nameDB name
PF28681Bqt3_CPfam
Transmembrane alpha helixDeepTMHMM

Orthologs

References / Literature

PMID:37787768 - Broad functional profiling of fission yeast proteins using phenomics and machine learning.
Rodríguez-López M et al. Elife 2023 Oct 03;12
PMID:39833200 - Centromere positioning orchestrates telomere bouquet formation and the initiation of meiotic differentiation.
Jiménez-Martín A et al. Nat Commun 2025 Jan 20;16(1):837
PMID:16615890 - Meiotic proteins bqt1 and bqt2 tether telomeres to form the bouquet arrangement of chromosomes.
Chikashige Y et al. Cell 2006 Apr 07;125(1):59-69
PMID:36799444 - Inner nuclear membrane proteins Lem2 and Bqt4 interact with different lipid synthesis enzymes in fission yeast.
Hirano Y et al. J Biochem 2023 Jun 30;174(1):33-46
PMID:22681890 - Hierarchical modularity and the evolution of genetic interactomes across species.
Ryan CJ et al. Mol Cell 2012 Jun 08;46(5):691-704
PMID:31626996 - Multiplexed proteome profiling of carbon source perturbations in two yeast species with SL-SP3-TMT.
Paulo JA et al. J Proteomics 2020 Jan 06;210:103531
PMID:33109728 - High-Throughput Identification of Nuclear Envelope Protein Interactions in Schizosaccharomyces pombe Using an Arrayed Membrane Yeast-Two Hybrid Library.
Varberg JM et al. G3 (Bethesda) 2020 Dec 03;10(12):4649-4663
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:38825008 - Disordered region of nuclear membrane protein Bqt4 recruits phosphatidic acid to the nuclear envelope to maintain its structural integrity.
Hirano Y et al. J Biol Chem 2024 May 31;:107430
PMID:20118936 - Schizosaccharomyces pombe genome-wide nucleosome mapping reveals positioning mechanisms distinct from those of Saccharomyces cerevisiae.
Lantermann AB et al. Nat Struct Mol Biol 2010 Feb;17(2):251-7
PMID:29259000 - Genes Important for Schizosaccharomyces pombe Meiosis Identified Through a Functional Genomics Screen.
Blyth J et al. Genetics 2018 Feb;208(2):589-603
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: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:19948484 - Membrane proteins Bqt3 and -4 anchor telomeres to the nuclear envelope to ensure chromosomal bouquet formation.
Chikashige Y et al. J Cell Biol 2009 Nov 02;187(3):413-27
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:11152613 - Predicting transmembrane protein topology with a hidden Markov model: application to complete genomes.
Krogh A et al. J Mol Biol 2001 Jan 19;305(3):567-80
PMID:33260998 - High-Throughput Flow Cytometry Combined with Genetic Analysis Brings New Insights into the Understanding of Chromatin Regulation of Cellular Quiescence.
Zahedi Y et al. Int J Mol Sci 2020 Nov 27;21(23)
PMID:37694715 - A ubiquitin-proteasome pathway degrades the inner nuclear membrane protein Bqt4 to maintain nuclear membrane homeostasis.
Le TK et al. J Cell Sci 2023 Oct 01;136(19)
PMID:21504829 - Yeast SREBP cleavage activation requires the Golgi Dsc E3 ligase complex.
Stewart EV et al. Mol Cell 2011 Apr 22;42(2):160-71
PMID:21511999 - Comparative functional genomics of the fission yeasts.
Rhind N et al. Science 2011 May 20;332(6032):930-6
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:28357272 - A central role for TOR signalling in a yeast model for juvenile CLN3 disease.
Bond ME et al. Microb Cell 2015 Nov 11;2(12):466-480
PMID:36095128 - Splicing of branchpoint-distant exons is promoted by Cactin, Tls1 and the ubiquitin-fold-activated Sde2.
Anil AT et al. Nucleic Acids Res 2022 Sep 23;50(17):10000-10014
PMID:28947618 - Sde2 is an intron-specific pre-mRNA splicing regulator activated by ubiquitin-like processing.
Thakran P et al. EMBO J 2018 Jan 04;37(1):89-101
PMID:23084836 - Epigenetic regulation of condensin-mediated genome organization during the cell cycle and upon DNA damage through histone H3 lysine 56 acetylation.
Tanaka A et al. Mol Cell 2012 Nov 30;48(4):532-46
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