UniProtKB - P54159 (DYNA_BACSU)
Dynamin-like protein A
dynA
Functioni
Mediates lipid mixing of vesicles and full mixing of their contents in the absence and presence of GTP. Tethers and mixes small vesicles better than larger ones, indicating a curvature preference. GTP slows down DynA-mediated lipid fusion, perhaps controlling its activity. Prefers phospholipid composition close to the B.subtilis membrane; requires phosphatidylglycerol for fusion has no activity on pure phosphatidylethanolamine vesicles (PubMed:31361971).
Regulates membrane lipid diffusion. Required to prevent membrane damage when exposed to low levels of membrane-damaging antibiotics or to bacteriophage. Probably surveys the cell membrane for stress; localizes to sites of membrane damage (treatment with nisin) and forms foci in cells treated with pore-forming compounds (CCCP). May assist membrane repair, possibly by membrane tethering and fusion (PubMed:26530236).
Probably functions both in early and late cell division, affects the proper formation of the FtsZ ring. Plays a non-redundant role with flottilin (floT) in membrane dynamics and cell shape. Probably able to bend membranes (PubMed:23249255).
Tethers liposomes and mediates their fusion; this does not require GTPase activity or the presence of GTP. Both GTPase domains (dynamin-type G) are required for GTPase activity (PubMed:21205012).
4 PublicationsHas intrinsic affinity for membranes and membrane distortion capability; causes tubulation and membrane distortion when expressed in a Drosophila cell line.
1 PublicationMiscellaneous
Catalytic activityi
Cofactori
GO - Molecular functioni
- GTPase activity Source: InterPro
- GTP binding Source: UniProtKB-KW
- lipid binding Source: UniProtKB-KW
GO - Biological processi
- cell septum assembly Source: CACAO
- regulation of cell shape Source: UniProtKB-KW
Keywordsi
Molecular function | Hydrolase |
Biological process | Cell cycle, Cell division, Cell shape |
Ligand | GTP-binding, Lipid-binding, Nucleotide-binding |
Enzyme and pathway databases
BioCyci | BSUB:BSU22030-MONOMER |
Names & Taxonomyi
Protein namesi | Recommended name: Dynamin-like protein A1 PublicationShort name: DynA1 Publication |
Gene namesi | Name:dynA1 Publication Synonyms:ypbR Ordered Locus Names:BSU22030 |
Organismi | Bacillus subtilis (strain 168) |
Taxonomic identifieri | 224308 [NCBI] |
Taxonomic lineagei | Bacteria › Firmicutes › Bacilli › Bacillales › Bacillaceae › Bacillus › |
Proteomesi |
|
Subcellular locationi
Plasma membrane
- Cell membrane 1 Publication2 Publications; Peripheral membrane protein Curated
Note: Found at the division septum; in the absence of minJ dispersed along membrane. Associates with the cell membrane via the D1 domain, D2 does not associate with membranes (PubMed:21205012, PubMed:23060960). In growing cells forms foci at midcell, colocalizes with FtsZ. Membrane localized in non-growing cells (PubMed:23249255). Localized uniformly along cell membrane where it is highly dynamic, DynA localizes to regions of membrane deformation upon nisin treatment and remains at those sites. Localizes into foci upon membrane potential dissipation (CCCP treatment, forms membrane pores) (PubMed:26530236).4 Publications
Plasma Membrane
- plasma membrane Source: UniProtKB-SubCell
Keywords - Cellular componenti
Cell membrane, MembranePathology & Biotechi
Disruption phenotypei
Mutagenesis
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Mutagenesisi | 56 | K → A: No change in membrane fusion. Still binds GTP, no GTPase activity. No longer binds GTP, no GTPase activity; when associated with A-56. Double mutant causes better vesicle and content mixing than wild-type. 2 Publications | 1 | |
Mutagenesisi | 625 | K → A: No change in membrane fusion. Still binds GTP, no GTPase activity. No longer binds GTP, no GTPase activity; when associated with A-625. Double mutant causes better vesicle and content mixing than wild-type. 2 Publications | 1 |
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000049682 | 1 – 1193 | Dynamin-like protein AAdd BLAST | 1193 |
Proteomic databases
PaxDbi | P54159 |
PRIDEi | P54159 |
Interactioni
Subunit structurei
Homodimer in solution (Probable). Both D1 and D2 domains interact with YwpG, YneK interacts only with D1 while RNase Y (rny) only interacts with whole protein (PubMed:23060960). Probably oligomerizes at damaged membrane sites (Probable).
2 Publications1 PublicationProtein-protein interaction databases
IntActi | P54159, 1 interactor |
STRINGi | 224308.BSU22030 |
Structurei
3D structure databases
AlphaFoldDBi | P54159 |
ModBasei | Search... |
SWISS-MODEL-Workspacei | Submit a new modelling project... |
Family & Domainsi
Region
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Regioni | 1 – 609 | D1, associates with and fuses membranes, tethers lipsomes1 PublicationAdd BLAST | 609 | |
Regioni | 50 – 57 | G1 motif D1PROSITE-ProRule annotationCurated | 8 | |
Regioni | 76 – 78 | G2 motif D1PROSITE-ProRule annotationCurated | 3 | |
Regioni | 141 – 144 | G3 motif D1PROSITE-ProRule annotationCurated | 4 | |
Regioni | 199 – 202 | G4 motif D1PROSITE-ProRule annotationCurated | 4 | |
Regioni | 561 – 1193 | D2, does not associate with membranes1 PublicationAdd BLAST | 633 | |
Regioni | 619 – 626 | G1 motif D2Curated | 8 | |
Regioni | 645 – 647 | G2 motif D2Curated | 3 | |
Regioni | 774 – 777 | G3 motif D2Curated | 4 | |
Regioni | 837 – 840 | G4 motif D2Curated | 4 |
Domaini
Sequence similaritiesi
Keywords - Domaini
RepeatPhylogenomic databases
eggNOGi | COG0699, Bacteria |
OMAi | FYVMDYN |
PhylomeDBi | P54159 |
Family and domain databases
Gene3Di | 3.40.50.300, 2 hits |
InterProi | View protein in InterPro IPR045063, Dynamin_N IPR027094, Mitofusin_fam IPR027417, P-loop_NTPase |
PANTHERi | PTHR10465, PTHR10465, 2 hits |
Pfami | View protein in Pfam PF00350, Dynamin_N, 2 hits |
SUPFAMi | SSF52540, SSF52540, 2 hits |
i Sequence
Sequence statusi: Complete.
10 20 30 40 50
MTDQNRKELL HKTGELYKQF IENQDEQRAA KLAAVMKKAA DEEVYIAFTG
60 70 80 90 100
HYSAGKSSLL NCLLMENILP TSPIPTSANL VVIRNGEKRV RLHTTDGACA
110 120 130 140 150
ELEGTYQKDK VQQYCKDGEQ IESVEIFDRY TEIDSGVAYI DTPGIDSTDD
160 170 180 190 200
AHFLSAASIL HQADALFYVV HYNHVHAEEN VKFLRSIKES IPNVYFIVNQ
210 220 230 240 250
IDRHDETETK FGDYQAQVEE MLCNEGISRE ALYFTSVTEP DHPFNQMGAL
260 270 280 290 300
REELSRIEQQ SKSNMQALTE QKVRNLLKEH TEMLKKDETG APSFAEQLNI
310 320 330 340 350
HTGLVQSLRD QLDEAEKQMT EAEKRMQEEI NRILKNANLT PFEMRELAAA
360 370 380 390 400
FLESQEPSFK TGFFFSKAKT AQERDKRRNA FFSDVAKRTE AEADWHMIDT
410 420 430 440 450
LHKLAKVFDV YTAESEKLIQ AYRTPLDISI IEHAVKHGAA FSSEYVLQYT
460 470 480 490 500
KDLAELIRKE AKREAADIIK VLSAMVKERV SKDVQTINDR LVQESEKLVF
510 520 530 540 550
LQEQARLENN AREKTDRLWA IWEEESACPM HIDTEWFKSK KTRVAAPEQK
560 570 580 590 600
QGRSQLTAQP MPKSEIKMEQ EMPLQDQIKR FYTLSDILGE CSMLLKQTSA
610 620 630 640 650
FRERVKRLEE RKFTLALFGG FSSGKSSFAN ALVGERVLPS SPTPTTATIN
660 670 680 690 700
KITKPINGNL NKTANVVFKT EDDLTAEILQ LTGIPKEPAG RSFTEKWEKA
710 720 730 740 750
VKKNRLQEEH VKLISNFLLA YEKYQQYIQE QKKLTIPLSE LKPYVAEETT
760 770 780 790 800
ACAVKEVTVY YTCPLTEKGI TIVDTPGASS MNKRHTELAF QYIKDADAFF
810 820 830 840 850
YMTYYQHSFS KGDRSFLRKL GLVKESLSMD KMFFIINAAD LAKDKTELET
860 870 880 890 900
VTDYVSAELV KEGVYEPQLF TVSSKEELVG KPESFYNQFS KVRKHLDRFI
910 920 930 940 950
EVDVKKASAA QLSSEADKLC ETVFQLHQSQ HQSREEKEAQ KQCLMLSFER
960 970 980 990 1000
TAADIEKRRN SKTIIEKVKK DTREQLYHIA QRLSYFANDL LKSAFHPGLQ
1010 1020 1030 1040 1050
NGDWKKNVSK AMTTALHEYL FEYIQEIKTL DVRMSGFIER HINEEWLDHF
1060 1070 1080 1090 1100
QKTLNEDGYF SVYAGDQHSN GIQLKEVEPE IEERAFEQEL KEIKSPKQFF
1110 1120 1130 1140 1150
EQKGKATFIE AVRMKLTKIT EAWIKNEEES LISHYTAHLR RLQEDMGEKA
1160 1170 1180 1190
IAQITDQKET YLRGYAEGEH AKEIEMAYQA CISWKNSDNT IKM
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | L77246 Genomic DNA Translation: AAA96615.1 AL009126 Genomic DNA Translation: CAB14120.1 |
PIRi | E69933 |
RefSeqi | NP_390085.1, NC_000964.3 WP_003230755.1, NZ_JNCM01000036.1 |
Genome annotation databases
EnsemblBacteriai | CAB14120; CAB14120; BSU_22030 |
GeneIDi | 939071 |
KEGGi | bsu:BSU22030 |
PATRICi | fig|224308.179.peg.2407 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | L77246 Genomic DNA Translation: AAA96615.1 AL009126 Genomic DNA Translation: CAB14120.1 |
PIRi | E69933 |
RefSeqi | NP_390085.1, NC_000964.3 WP_003230755.1, NZ_JNCM01000036.1 |
3D structure databases
AlphaFoldDBi | P54159 |
ModBasei | Search... |
SWISS-MODEL-Workspacei | Submit a new modelling project... |
Protein-protein interaction databases
IntActi | P54159, 1 interactor |
STRINGi | 224308.BSU22030 |
Proteomic databases
PaxDbi | P54159 |
PRIDEi | P54159 |
Genome annotation databases
EnsemblBacteriai | CAB14120; CAB14120; BSU_22030 |
GeneIDi | 939071 |
KEGGi | bsu:BSU22030 |
PATRICi | fig|224308.179.peg.2407 |
Phylogenomic databases
eggNOGi | COG0699, Bacteria |
OMAi | FYVMDYN |
PhylomeDBi | P54159 |
Enzyme and pathway databases
BioCyci | BSUB:BSU22030-MONOMER |
Family and domain databases
Gene3Di | 3.40.50.300, 2 hits |
InterProi | View protein in InterPro IPR045063, Dynamin_N IPR027094, Mitofusin_fam IPR027417, P-loop_NTPase |
PANTHERi | PTHR10465, PTHR10465, 2 hits |
Pfami | View protein in Pfam PF00350, Dynamin_N, 2 hits |
SUPFAMi | SSF52540, SSF52540, 2 hits |
MobiDBi | Search... |
Entry informationi
Entry namei | DYNA_BACSU | |
Accessioni | P54159Primary (citable) accession number: P54159 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | October 1, 1996 |
Last sequence update: | October 1, 1996 | |
Last modified: | May 25, 2022 | |
This is version 111 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Prokaryotic Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Reference proteomeDocuments
- SIMILARITY comments
Index of protein domains and families