UniProtKB - Q5IBC5 (ESP1_ARATH)
Separase
ESP1
Functioni
Cleaves SYN1, releasing sister chromatid cohesion. Required for the release of cohesin at anaphase I and anaphase II, whereas the release of cohesin during diplotene and diakinesis occurs in a separase-independent process. Essential for embryo and endosperm development. May play a role in centromeric heterochromatin structure/formation during early meiosis, non-homologous centromere association and radial microtubule system (RMS) formation. May regulate the mitosis-specific cyclin CYCB1-1.
4 PublicationsCatalytic activityi
- All bonds known to be hydrolyzed by this endopeptidase have arginine in P1 and an acidic residue in P4. P6 is often occupied by an acidic residue or by a hydroxy-amino-acid residue, the phosphorylation of which enhances cleavage. EC:3.4.22.49
GO - Molecular functioni
- cysteine-type endopeptidase activity Source: GO_Central
- peptidase activity Source: TAIR
GO - Biological processi
- chromosome separation Source: TAIR
- cytokinesis by cell plate formation Source: TAIR
- embryo development ending in seed dormancy Source: TAIR
- endosperm development Source: TAIR
- exocytosis Source: TAIR
- meiotic chromosome separation Source: TAIR
- positive regulation of sister chromatid cohesion Source: TAIR
- regulation of establishment of cell polarity Source: TAIR
- unidimensional cell growth Source: TAIR
- vesicle-mediated transport Source: TAIR
Keywordsi
Molecular function | Hydrolase |
Biological process | Cell cycle, Cell division, Chromosome partition, Meiosis, Mitosis |
Enzyme and pathway databases
BRENDAi | 3.4.22.49, 399 |
Protein family/group databases
MEROPSi | C50.005 |
Names & Taxonomyi
Protein namesi | Recommended name: Separase (EC:3.4.22.49)Alternative name(s): Protein EXTRA SPINDLE POLES Short name: AtESP Protein RADIALLY SWOLLEN 4 |
Gene namesi | Name:ESP1 Synonyms:AESP, ESP, RSW4 Ordered Locus Names:At4g22970 ORF Names:F7H19.150 |
Organismi | Arabidopsis thaliana (Mouse-ear cress) |
Taxonomic identifieri | 3702 [NCBI] |
Taxonomic lineagei | Eukaryota › Viridiplantae › Streptophyta › Embryophyta › Tracheophyta › Spermatophyta › Magnoliopsida › eudicotyledons › Gunneridae › Pentapetalae › rosids › malvids › Brassicales › Brassicaceae › Camelineae › Arabidopsis |
Proteomesi |
|
Organism-specific databases
Araporti | AT4G22970 |
TAIRi | locus:2127238, AT4G22970 |
Subcellular locationi
Cytoskeleton
- microtubule Source: TAIR
- mitotic spindle Source: GO_Central
Nucleus
- nucleus Source: GO_Central
Other locations
- cytoplasm Source: GO_Central
Pathology & Biotechi
Disruption phenotypei
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000423514 | 1 – 2180 | SeparaseAdd BLAST | 2180 |
Proteomic databases
PaxDbi | Q5IBC5 |
Expressioni
Tissue specificityi
Gene expression databases
ExpressionAtlasi | Q5IBC5, baseline and differential |
Genevisiblei | Q5IBC5, AT |
Interactioni
Protein-protein interaction databases
BioGRIDi | 13685, 1 interactor |
STRINGi | 3702.AT4G22970.1 |
Family & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Domaini | 1937 – 2031 | Peptidase C50Add BLAST | 95 |
Region
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Regioni | 1252 – 1283 | DisorderedSequence analysisAdd BLAST | 32 | |
Regioni | 2101 – 2125 | DisorderedSequence analysisAdd BLAST | 25 |
Phylogenomic databases
eggNOGi | KOG1849, Eukaryota |
InParanoidi | Q5IBC5 |
OMAi | IVANLWE |
PhylomeDBi | Q5IBC5 |
Family and domain databases
InterProi | View protein in InterPro IPR005314, Peptidase_C50 IPR030397, SEPARIN_core_dom |
PANTHERi | PTHR12792, PTHR12792, 1 hit |
PROSITEi | View protein in PROSITE PS51700, SEPARIN, 1 hit |
s (2+)i Sequence
Sequence statusi: Complete.
This entry describes 2 produced by isoformsialternative splicing. AlignAdd to basketThis entry has 2 described isoforms and 1 potential isoform that is computationally mapped.Show allAlign All
This isoform has been chosen as the sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. canonicali
10 20 30 40 50
MASSGDDLRL LSLIDVGDNV FSSFSDYLKP FSTLSTSRKK QDRATTIRAL
60 70 80 90 100
AKQFLPFLNK SISLLPKRLS VANSDKEARE SALDLFRAYE LCLDCLELVS
110 120 130 140 150
AQLACKPHTV QSQRLRMIHC LDVWGLYENV YTEAFKVLEK LRGSDSKSRK
160 170 180 190 200
SRLLPEVQDG DAEMALVVVD AVAAIFRAVA MSQQLDDKRY RKVLLLLEEV
210 220 230 240 250
GGWLRVLDAK VYEKLHRAMV TSMGKCAVSL VREAERFNGD LVISFCDLTV
260 270 280 290 300
KEHYKSALSK DRVYKFAREV LSVLFGFKDR KMSVTIDISM SVLRSLSCQF
310 320 330 340 350
EDESNENLME FFDLVDYCAH KFRAAGDMYC AKVSKKLNEM AAIFVEAIPQ
360 370 380 390 400
LNLVLRLYST GLSITVCNSK LGEIKLEDST DDWKIQAMFD DDARWQSLVS
410 420 430 440 450
LLGMVDSYSG DEGNQTGSSS IGGHRNYNNK THDSCKDRNK ITCWPQYVDA
460 470 480 490 500
LKFLCQPLAD FIYSVKRKIV LETEMSCASA HLITIHDAFL QFCDGCLFLQ
510 520 530 540 550
RCTSDKGDRE IANNKAFLNA AMGAFIVSLR TQLKLEISAH LVEDVIGSPW
560 570 580 590 600
IQSQELKYLI ATLYNIGIVL YRNKELNKAC EALKLCSKVS WRCVELHCHM
610 620 630 640 650
FVNQSSSSDN DLSEDAIMDF VGEACNRCAF YLDILQKCSR RKIRQNIVHI
660 670 680 690 700
LENWLSAEHL IRRLPGPEAI VKQWVKIERE CHTDLDAAGS CTTLYSLLSS
710 720 730 740 750
SQKKSKRGIG KILEQELLAY DRVLPLRSNL GQQTRIKIAD ILLKDVYVTE
760 770 780 790 800
DMHIERARIL IWKARMTRTS GTEHITECIC FLSEAISILG ELHHGPNEEG
810 820 830 840 850
SPSSHMLPIA YCLRAFCTQE ADPNSKKVFQ DISTSLNLWL RILSLDDSGD
860 870 880 890 900
SLPTENIIPL LYNMIDLMSV KGCTELHHHI YQLIFRLFKW KNVKLEVCLA
910 920 930 940 950
MLWECRRLSH ALCPSPISDA FIQTLSENCA DKSTCIDFWM DCLKDSKAKL
960 970 980 990 1000
IGFQQNFHDL HNKDEGPFQS DITIDDIKDA ASELISSASL SGNSSFAAAY
1010 1020 1030 1040 1050
LYYDLCERLI SFGKLSEALS YAKEAYRIRT LIFQDKFKYT AEKHIEKHNE
1060 1070 1080 1090 1100
DGKISEIRTF SIKNFQVYRL LATDFWPCGN FLWDINRCYL SPWSVLQCYL
1110 1120 1130 1140 1150
ESTLQVGILN ELIGNGLEAE TILSWGKAFS CSQSLFPFVV AFSSALGNLY
1160 1170 1180 1190 1200
HKKQCLDLAE KELQNAKEIL IANQRDFSCV KCKLKLEVTL DKQLGDISRK
1210 1220 1230 1240 1250
QIDRVSQTDG FLHAESLFSA ALGKFCCSAW KSCIRSHGEE IAEEIVIDRN
1260 1270 1280 1290 1300
GGEGLGHNSS KTKLSIKEPP GNRGSRRGGR ANKTCLSKDQ DLISEPTSRL
1310 1320 1330 1340 1350
TRSMRHSLRE QCQNRSNVPE VVSKKPNLCD RSVGSRGERV LLDTSNALPG
1360 1370 1380 1390 1400
FCICYKEKRQ QCLSEEVTES GSLNNLVSLK WELCHRKLAS SILVSLGKCL
1410 1420 1430 1440 1450
GDSGRIHLAH EALLHSISVL FKSTWSSHNQ PSVSQLLEFI GKEVTRDVFA
1460 1470 1480 1490 1500
VDRAIILYNL CWLNLRNYHC RKSRSICCDL FHIPFTKLVS WLMLAFVLSG
1510 1520 1530 1540 1550
EVPILFQKVS RLLASLYLLS SSNSEFTFES DGNELSASHW VSFFHQASLG
1560 1570 1580 1590 1600
THLSYHFISN LSQKHKSQCL SDKECTEATC SSCMVPEDLD LPRLAPDRTQ
1610 1620 1630 1640 1650
DLVQFAKEFF INLPSSTIIC ISLLGGALNQ LLQELMHIRS PVCAWVLISR
1660 1670 1680 1690 1700
LNPESQPVAT LLPVDSIVED MSDDSANLSS TEATQVKSLK GPWLCPWGTT
1710 1720 1730 1740 1750
VVDEVAPAFK SILEESHSSS STTEEDTIES RGLWWKKRKK LNHRLGIFLR
1760 1770 1780 1790 1800
NLEASWLGPW RCLLLGEWSN YKLPDSAQKK LVNDLKSKCK MEVNEMLLKV
1810 1820 1830 1840 1850
ILGGGTDNFK GEACVAQLSL RNGCYVGRGG YLYEEDSCKT PTAASNISES
1860 1870 1880 1890 1900
RHELALKLIH DAASKLGQQD GHENREPIIL VLDPEVQMLP WENIPILRKQ
1910 1920 1930 1940 1950
EVYRMPSVGC ISAVLKKRSL QGEPAKSHVA SFPLIDPLDS FYLLNPGGDL
1960 1970 1980 1990 2000
TDTQVTFESW FRDQNFEGKA GSEPSAIELT EALETHDLFL YFGHGSGAQY
2010 2020 2030 2040 2050
IPRREIEKLD NCSATFLMGC SSGSLWLKGC YIPQGVPLSY LLGGSPAIVA
2060 2070 2080 2090 2100
TLWDVTDRDI DRFGKALLEA WLQERSDSSS EGGCSQCESL ANDLAAMTLK
2110 2120 2130 2140 2150
GTKRSRKPSS RNKPAQSDVD GSGKIECNHK HRRKIGSFIA AARDACNLQY
2160 2170 2180
LIGAAPVCYG VPTGITRKKG IDALLPSSSR
Computationally mapped potential isoform sequencesi
There is 1 potential isoform mapped to this entry.BLASTAlignShow allAdd to basketA0A1P8B3N4 | A0A1P8B3N4_ARATH | Separase | ESP AESP, EXTRA SPINDLE POLES, homolog of separase, RADIALLY SWOLLEN 4, RSW4 | 2,181 | Annotation score: |
Sequence cautioni
Alternative sequence
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Alternative sequenceiVSP_047934 | 1670 – 1672 | Missing in isoform 2. Curated | 3 |
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AY823256 mRNA Translation: AAW32909.1 AL031018 Genomic DNA Translation: CAA19812.1 Sequence problems. AL161558 Genomic DNA Translation: CAB79252.1 Sequence problems. CP002687 Genomic DNA Translation: AEE84686.1 CP002687 Genomic DNA Translation: AEE84687.1 |
PIRi | T05128 |
RefSeqi | NP_001190804.1, NM_001203875.2 [Q5IBC5-2] NP_194028.2, NM_118426.4 [Q5IBC5-1] |
Genome annotation databases
EnsemblPlantsi | AT4G22970.1; AT4G22970.1; AT4G22970 [Q5IBC5-1] AT4G22970.2; AT4G22970.2; AT4G22970 [Q5IBC5-2] |
GeneIDi | 828396 |
Gramenei | AT4G22970.1; AT4G22970.1; AT4G22970 [Q5IBC5-1] AT4G22970.2; AT4G22970.2; AT4G22970 [Q5IBC5-2] |
KEGGi | ath:AT4G22970 |
Keywords - Coding sequence diversityi
Alternative splicingSimilar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AY823256 mRNA Translation: AAW32909.1 AL031018 Genomic DNA Translation: CAA19812.1 Sequence problems. AL161558 Genomic DNA Translation: CAB79252.1 Sequence problems. CP002687 Genomic DNA Translation: AEE84686.1 CP002687 Genomic DNA Translation: AEE84687.1 |
PIRi | T05128 |
RefSeqi | NP_001190804.1, NM_001203875.2 [Q5IBC5-2] NP_194028.2, NM_118426.4 [Q5IBC5-1] |
3D structure databases
SMRi | Q5IBC5 |
ModBasei | Search... |
Protein-protein interaction databases
BioGRIDi | 13685, 1 interactor |
STRINGi | 3702.AT4G22970.1 |
Protein family/group databases
MEROPSi | C50.005 |
Proteomic databases
PaxDbi | Q5IBC5 |
Genome annotation databases
EnsemblPlantsi | AT4G22970.1; AT4G22970.1; AT4G22970 [Q5IBC5-1] AT4G22970.2; AT4G22970.2; AT4G22970 [Q5IBC5-2] |
GeneIDi | 828396 |
Gramenei | AT4G22970.1; AT4G22970.1; AT4G22970 [Q5IBC5-1] AT4G22970.2; AT4G22970.2; AT4G22970 [Q5IBC5-2] |
KEGGi | ath:AT4G22970 |
Organism-specific databases
Araporti | AT4G22970 |
TAIRi | locus:2127238, AT4G22970 |
Phylogenomic databases
eggNOGi | KOG1849, Eukaryota |
InParanoidi | Q5IBC5 |
OMAi | IVANLWE |
PhylomeDBi | Q5IBC5 |
Enzyme and pathway databases
BRENDAi | 3.4.22.49, 399 |
Miscellaneous databases
PROi | PR:Q5IBC5 |
Gene expression databases
ExpressionAtlasi | Q5IBC5, baseline and differential |
Genevisiblei | Q5IBC5, AT |
Family and domain databases
InterProi | View protein in InterPro IPR005314, Peptidase_C50 IPR030397, SEPARIN_core_dom |
PANTHERi | PTHR12792, PTHR12792, 1 hit |
PROSITEi | View protein in PROSITE PS51700, SEPARIN, 1 hit |
MobiDBi | Search... |
Entry informationi
Entry namei | ESP1_ARATH | |
Accessioni | Q5IBC5Primary (citable) accession number: Q5IBC5 Secondary accession number(s): F4JMQ3, O82745 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | September 18, 2013 |
Last sequence update: | February 15, 2005 | |
Last modified: | February 23, 2022 | |
This is version 121 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Plant Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Reference proteomeDocuments
- Arabidopsis thaliana
Arabidopsis thaliana: entries and gene names