UniProtKB - Q9SG79 (SUN2_ARATH)
SUN domain-containing protein 2
SUN2
Functioni
GO - Molecular functioni
- protein-membrane adaptor activity Source: UniProtKB
- protein self-association Source: UniProtKB
GO - Biological processi
- meiotic attachment of telomere to nuclear envelope Source: UniProtKB
- nuclear envelope organization Source: GO_Central
- nucleus organization Source: UniProtKB
- protein heterooligomerization Source: UniProtKB
- protein homooligomerization Source: UniProtKB
- protein localization to nuclear envelope Source: UniProtKB
Names & Taxonomyi
Protein namesi | Recommended name: SUN domain-containing protein 21 PublicationShort name: AtSUN21 Publication |
Gene namesi | Name:SUN21 Publication Ordered Locus Names:At3g10730Imported ORF Names:T7M13.19Imported |
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 | AT3G10730 |
TAIRi | locus:2103182, AT3G10730 |
Subcellular locationi
Cytoskeleton
- phragmoplast 1 Publication
Nucleus
- Nucleus inner membrane 4 Publications; Single-pass type II membrane protein Sequence analysis
- Nucleus envelope 1 Publication
Endoplasmic reticulum
- Endoplasmic reticulum membrane 1 Publication; Single-pass type II membrane protein Sequence analysis
Note: Dynamic localization during mitosis and meiosis, tightly coupled with nuclear envelope (NE) dynamics. Localized with the nuclear envelope during meiotic prophase I. NE re-formation during metaphase is temporally and spatially coordinated with plant-specific microtubule structures such as phragmoplasts. During anaphase, after NE breakdown (NEBD), predominantly localized with the endoplasmic reticulum, in the outside of the segregated chromosomes and not in between segregated chromosomes.2 Publications
Cytoskeleton
- spindle Source: TAIR
Endoplasmic reticulum
- endoplasmic reticulum Source: TAIR
- endoplasmic reticulum membrane Source: UniProtKB
Nucleus
- nuclear envelope Source: UniProtKB
- nuclear inner membrane Source: UniProtKB-SubCell
Other locations
- integral component of membrane Source: UniProtKB-KW
- phragmoplast Source: UniProtKB
Topology
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Topological domaini | 2 – 105 | NuclearCuratedAdd BLAST | 104 | |
Transmembranei | 106 – 128 | HelicalSequence analysisAdd BLAST | 23 | |
Topological domaini | 129 – 455 | Perinuclear spaceCuratedAdd BLAST | 327 |
Keywords - Cellular componenti
Cytoplasm, Cytoskeleton, Endoplasmic reticulum, Membrane, NucleusPathology & Biotechi
Disruption phenotypei
Mutagenesis
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Mutagenesisi | 434 | H → A: Strongly affects binding to SINE1, SINE2, SINE3 and SINE4; when associated with F-438. 1 Publication | 1 | |
Mutagenesisi | 438 | Y → F: Strongly affects binding to SINE1, SINE2, SINE3 and SINE4; when associated with A-434. 1 Publication | 1 |
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Initiator methioninei | RemovedCombined sources | |||
ChainiPRO_0000432817 | 2 – 455 | SUN domain-containing protein 2Add BLAST | 454 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Modified residuei | 2 | N-acetylserineCombined sources | 1 | |
Modified residuei | 63 | PhosphoserineBy similarity | 1 |
Keywords - PTMi
Acetylation, PhosphoproteinProteomic databases
PaxDbi | Q9SG79 |
PRIDEi | Q9SG79 |
ProteomicsDBi | 245246 |
PTM databases
iPTMneti | Q9SG79 |
Expressioni
Tissue specificityi
Inductioni
Gene expression databases
ExpressionAtlasi | Q9SG79, baseline and differential |
Genevisiblei | Q9SG79, AT |
Interactioni
Subunit structurei
Forms homomers (e.g. dimers, trimers and tetramers) and heteromers with SUN1 (PubMed:19807882, PubMed:25217773).
Interacts with SUN3, SUN4 and TIK (PubMed:25217773). Core component of the LINC complex which is composed of inner nuclear membrane SUN domain-containing proteins coupled to outer nuclear membrane WIP and WIT proteins. The LINC complex also involves nucleoskeletal proteins CRWN/LINC and possibly KAKU4 and the cytoskeletal myosin KAKU1 (PubMed:25759303).
Interacts with LINC1, WIP1, WIP2 and WIP3 at the nuclear envelope (NE) (PubMed:22270916, PubMed:23973298, PubMed:24667841).
Interacts with SINE1, SINE2, SINE3 AND SINE4 (PubMed:24891605).
Interacts with NEAP1, NEA2 and NEAP3 (PubMed:27630107).
8 PublicationsGO - Molecular functioni
- protein self-association Source: UniProtKB
Protein-protein interaction databases
IntActi | Q9SG79, 1 interactor |
STRINGi | 3702.AT3G10730.1 |
Family & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Domaini | 285 – 447 | SUNPROSITE-ProRule annotationAdd BLAST | 163 |
Coiled coil
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Coiled coili | 201 – 225 | Sequence analysisAdd BLAST | 25 |
Motif
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Motifi | 88 – 95 | Nuclear localization signalPROSITE-ProRule annotation | 8 |
Compositional bias
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Compositional biasi | 78 – 87 | Poly-ThrSequence analysis | 10 |
Domaini
Keywords - Domaini
Coiled coil, Signal-anchor, Transmembrane, Transmembrane helixPhylogenomic databases
eggNOGi | KOG2687, Eukaryota |
HOGENOMi | CLU_043737_3_0_1 |
InParanoidi | Q9SG79 |
OMAi | KAKWEIA |
OrthoDBi | 1569602at2759 |
PhylomeDBi | Q9SG79 |
Family and domain databases
Gene3Di | 2.60.120.260, 1 hit |
InterProi | View protein in InterPro IPR008979, Galactose-bd-like_sf IPR012919, SUN_dom |
Pfami | View protein in Pfam PF07738, Sad1_UNC, 1 hit |
PROSITEi | View protein in PROSITE PS51469, SUN, 1 hit |
i Sequence
Sequence statusi: Complete.
: The displayed sequence is further processed into a mature form. Sequence processingi
10 20 30 40 50
MSASTVSITA SPRTIRRTPV LSGEKKSNFD FPPSESHANA AIGESSAGTN
60 70 80 90 100
KDLIRAEAAG ERSNTYDVGP VTRKSGSTAT GTNTTTTQRR TRKSQGNKID
110 120 130 140 150
RGKWKTVVRV FAKQFGALLL LVGLIQLIRK LTLKDSSLSS SNFPIETEMV
160 170 180 190 200
LSELESRISA VDGLVKTTTK MMQVQVEFLD KKMDSESRAL RQTIDSTSSV
210 220 230 240 250
LHSELKKVES KTERLQVSVD ELNAKPLVSR EELERVYEEL KKGKVGDSDV
260 270 280 290 300
NIDKLRAYAR DIVEKEIGKH VADGLGRVDY ALASGGAFVM GHSDPFLVGN
310 320 330 340 350
GRNWFGTSRR RVHSKAVKML TPSFGEPGQC FPLKGSNGYV LVRLRAPIIP
360 370 380 390 400
EAVTLEHVSK AVAYDRSSAP KDCRVSGWLG DIDMETETMP LLTEFSYDLD
410 420 430 440 450
RSNAQTFDIA DSAHSGLVNT VRLDFNSNHG SSSHTCIYRF RVHGRELDSV
SVAHA
Sequence cautioni
Experimental Info
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Sequence conflicti | 302 | R → G in AAM65947 (Ref. 5) Curated | 1 | |
Sequence conflicti | 398 | D → N in AAM65947 (Ref. 5) Curated | 1 |
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AC011708 Genomic DNA Translation: AAF19576.1 CP002686 Genomic DNA Translation: AEE74948.1 AK118080 mRNA Translation: BAC42710.1 BT006045 mRNA Translation: AAP04030.1 AY088410 mRNA Translation: AAM65947.1 Different initiation. |
RefSeqi | NP_566380.2, NM_111910.4 |
Genome annotation databases
EnsemblPlantsi | AT3G10730.1; AT3G10730.1; AT3G10730 |
GeneIDi | 820242 |
Gramenei | AT3G10730.1; AT3G10730.1; AT3G10730 |
KEGGi | ath:AT3G10730 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AC011708 Genomic DNA Translation: AAF19576.1 CP002686 Genomic DNA Translation: AEE74948.1 AK118080 mRNA Translation: BAC42710.1 BT006045 mRNA Translation: AAP04030.1 AY088410 mRNA Translation: AAM65947.1 Different initiation. |
RefSeqi | NP_566380.2, NM_111910.4 |
3D structure databases
SMRi | Q9SG79 |
ModBasei | Search... |
Protein-protein interaction databases
IntActi | Q9SG79, 1 interactor |
STRINGi | 3702.AT3G10730.1 |
PTM databases
iPTMneti | Q9SG79 |
Proteomic databases
PaxDbi | Q9SG79 |
PRIDEi | Q9SG79 |
ProteomicsDBi | 245246 |
Genome annotation databases
EnsemblPlantsi | AT3G10730.1; AT3G10730.1; AT3G10730 |
GeneIDi | 820242 |
Gramenei | AT3G10730.1; AT3G10730.1; AT3G10730 |
KEGGi | ath:AT3G10730 |
Organism-specific databases
Araporti | AT3G10730 |
TAIRi | locus:2103182, AT3G10730 |
Phylogenomic databases
eggNOGi | KOG2687, Eukaryota |
HOGENOMi | CLU_043737_3_0_1 |
InParanoidi | Q9SG79 |
OMAi | KAKWEIA |
OrthoDBi | 1569602at2759 |
PhylomeDBi | Q9SG79 |
Miscellaneous databases
PROi | PR:Q9SG79 |
Gene expression databases
ExpressionAtlasi | Q9SG79, baseline and differential |
Genevisiblei | Q9SG79, AT |
Family and domain databases
Gene3Di | 2.60.120.260, 1 hit |
InterProi | View protein in InterPro IPR008979, Galactose-bd-like_sf IPR012919, SUN_dom |
Pfami | View protein in Pfam PF07738, Sad1_UNC, 1 hit |
PROSITEi | View protein in PROSITE PS51469, SUN, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | SUN2_ARATH | |
Accessioni | Q9SG79Primary (citable) accession number: Q9SG79 Secondary accession number(s): Q8L9I5 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | April 29, 2015 |
Last sequence update: | May 1, 2000 | |
Last modified: | April 7, 2021 | |
This is version 125 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