UniProtKB - Q86AT8 (SPKA_DICDI)
Protein
Stress-activated protein kinase alpha
Gene
spkA-1
moreOrganism
Dictyostelium discoideum (Slime mold)
Status
Functioni
May be involved in cortical F-actin organization and resistance to osmotic stress. Activated upon cell detachment, in vitro.1 Publication
Caution
The gene for this protein is duplicated in strains AX3 and AX4. These strains contain a duplication of a segment of 750 kb of chromosome 2 compared to the corresponding sequence in strain AX2.Curated
Catalytic activityi
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Binding sitei | 378 | ATPCurated | 1 | |
Active sitei | 472 | Proton acceptorPROSITE-ProRule annotation | 1 |
Regions
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Nucleotide bindingi | 357 – 365 | ATPPROSITE-ProRule annotation | 9 |
GO - Molecular functioni
- actin binding Source: UniProtKB-KW
- ATP binding Source: UniProtKB-KW
- protein kinase activity Source: dictyBase
- protein serine/threonine kinase activity Source: UniProtKB-KW
GO - Biological processi
- actin cytoskeleton organization Source: dictyBase
- chemotaxis Source: dictyBase
- mitotic cytokinesis Source: dictyBase
- regulation of developmental process Source: dictyBase
- response to osmotic stress Source: dictyBase
- signal transduction Source: GO_Central
Keywordsi
Molecular function | Actin-binding, Kinase, Serine/threonine-protein kinase, Transferase |
Ligand | ATP-binding, Nucleotide-binding |
Names & Taxonomyi
Protein namesi | |
Gene namesi | Name:spkA-1 ORF Names:DDB_G0273445 AND Name:spkA-2 ORF Names:DDB_G0273531 |
Organismi | Dictyostelium discoideum (Slime mold) |
Taxonomic identifieri | 44689 [NCBI] |
Taxonomic lineagei | Eukaryota › Amoebozoa › Evosea › Eumycetozoa › Dictyostelia › Dictyosteliales › Dictyosteliaceae › Dictyostelium |
Proteomesi |
|
Organism-specific databases
dictyBasei | DDB_G0273445, spkA-1 DDB_G0273531, spkA-2 |
Subcellular locationi
- cytoskeleton 1 Publication Note: Associated with the cytoskeletal cortex in response to chemoattractant stimulation. Colocalizes with F-actin in F-actin-enriched structures, including membrane ruffles and pseudopodia during chemotaxis.
GO - Cellular componenti
- actin cytoskeleton Source: dictyBase
- cytoplasm Source: dictyBase
Keywords - Cellular componenti
Cytoplasm, CytoskeletonPathology & Biotechi
Mutagenesis
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Mutagenesisi | 378 | K → A: Loss of kinase activity. 1 Publication | 1 |
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000354063 | 1 – 638 | Stress-activated protein kinase alphaAdd BLAST | 638 |
Post-translational modificationi
Autophosphorylated.Curated
Keywords - PTMi
PhosphoproteinProteomic databases
PaxDbi | Q86AT8 |
Expressioni
Developmental stagei
There are 2 transcripts. The smaller transcript is high in vegetative cells and during early development and rapidly decreases after 12 hours, the time of tipped aggregate formation. A larger transcript occurs at 8 hours of development, remains high through the 12 hours time point, and then decreases, like the smaller transcript.1 Publication
Interactioni
Subunit structurei
Interacts with F-actin.
1 PublicationGO - Molecular functioni
- actin binding Source: UniProtKB-KW
Protein-protein interaction databases
STRINGi | 44689.DDB0235343 |
Family & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Repeati | 43 – 72 | ANK 1Add BLAST | 30 | |
Repeati | 80 – 109 | ANK 2Add BLAST | 30 | |
Repeati | 113 – 146 | ANK 3Add BLAST | 34 | |
Repeati | 150 – 181 | ANK 4Add BLAST | 32 | |
Repeati | 185 – 214 | ANK 5Add BLAST | 30 | |
Repeati | 219 – 248 | ANK 6Add BLAST | 30 | |
Domaini | 240 – 303 | SAMPROSITE-ProRule annotationAdd BLAST | 64 | |
Domaini | 351 – 620 | Protein kinasePROSITE-ProRule annotationAdd BLAST | 270 |
Compositional bias
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Compositional biasi | 5 – 10 | Poly-Gln | 6 |
Sequence similaritiesi
Keywords - Domaini
ANK repeat, RepeatPhylogenomic databases
eggNOGi | KOG0192, Eukaryota |
HOGENOMi | CLU_020450_0_0_1 |
InParanoidi | Q86AT8 |
OMAi | NSITWET |
PhylomeDBi | Q86AT8 |
Family and domain databases
Gene3Di | 1.10.150.50, 1 hit 1.25.40.20, 2 hits |
InterProi | View protein in InterPro IPR002110, Ankyrin_rpt IPR020683, Ankyrin_rpt-contain_dom IPR036770, Ankyrin_rpt-contain_sf IPR011009, Kinase-like_dom_sf IPR000719, Prot_kinase_dom IPR017441, Protein_kinase_ATP_BS IPR001660, SAM IPR013761, SAM/pointed_sf IPR001245, Ser-Thr/Tyr_kinase_cat_dom IPR008271, Ser/Thr_kinase_AS |
Pfami | View protein in Pfam PF12796, Ank_2, 2 hits PF07714, PK_Tyr_Ser-Thr, 1 hit PF00536, SAM_1, 1 hit |
PRINTSi | PR01415, ANKYRIN |
SMARTi | View protein in SMART SM00248, ANK, 6 hits SM00220, S_TKc, 1 hit SM00454, SAM, 1 hit |
SUPFAMi | SSF47769, SSF47769, 1 hit SSF48403, SSF48403, 1 hit SSF56112, SSF56112, 1 hit |
PROSITEi | View protein in PROSITE PS50297, ANK_REP_REGION, 1 hit PS50088, ANK_REPEAT, 3 hits PS00107, PROTEIN_KINASE_ATP, 1 hit PS50011, PROTEIN_KINASE_DOM, 1 hit PS00108, PROTEIN_KINASE_ST, 1 hit PS50105, SAM_DOMAIN, 1 hit |
i Sequence
Sequence statusi: Complete.
Q86AT8-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MSSTQQQQHQ LFSAVEQNDV TKVKKLSSKK KISKSNLTSF DQYGQSALTI
60 70 80 90 100
ALKNNNEEMV ELLLSLCVTL KADINTFDKN GFSALHQAVS SDDRILMRVL
110 120 130 140 150
QYENINVDVQ NDDLNTPIHY FCQKFRSPNC QEPFQLFIQK GVNVNAQNKN
160 170 180 190 200
GETPLHKAIF NNSVRLMMVG LLLKNGANVN LATQFQESPL HYAVRLGRED
210 220 230 240 250
LVSVLLKAGA DVDCVGTKER KTPYQLAVEE GNKDMTARIK KYKDLFDWLQ
260 270 280 290 300
KHGFEQYKDA FLKEEMFLDE LGEMSEDILN KMGITSTGTR LRILKETSNL
310 320 330 340 350
ANEQTKKPKT PELIIEEDPT PPDTPDISGL RHSLHTLRHV GEVNIINDNE
360 370 380 390 400
LEYTEKLGAG SSGKVYKGLY RGKEVAIKVL KSMTESKEIE EFKKEFQIMS
410 420 430 440 450
AIRSKHVVHF YGAVLEPKLC MVMENCSRGS LYHVMDNNSL DIGWERTFRF
460 470 480 490 500
AIETVRGIEC LHKWDPPIVH RDLKSLNLLV NDKWEIKVCD FGLSRFNTGS
510 520 530 540 550
NLETLVKMRG TFAYCAPEVY YGEQFSGKSD VYSIAVILWE LVTRCINGRY
560 570 580 590 600
ERPFSEYKNL QHDFQIIIQT AKKNLRPTIP NACPESLVSL IQDCWDPNLE
610 620 630
NRPTCTDILS RLVTIENEYR SNIQTWNNLI VPLPKNQE
Sequence cautioni
The sequence AAA80242 differs from that shown. Reason: Frameshift.Curated
Experimental Info
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Sequence conflicti | 99 | V → G in AAA80242 (Ref. 4) Curated | 1 | |
Sequence conflicti | 347 – 348 | ND → KY in AAA80242 (Ref. 4) Curated | 2 | |
Sequence conflicti | 409 – 411 | HFY → PEF in AAA80242 (Ref. 4) Curated | 3 |
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AY353245 mRNA Translation: AAQ57595.1 AAFI02000010 Genomic DNA Translation: EAL70677.1 AAFI02000010 Genomic DNA Translation: EAL70720.1 U36938 mRNA Translation: AAA80242.1 Frameshift. |
RefSeqi | XP_644604.1, XM_639512.1 XP_644647.1, XM_639555.1 |
Genome annotation databases
EnsemblProtistsi | EAL70677; EAL70677; DDB_G0273445 EAL70720; EAL70720; DDB_G0273531 |
GeneIDi | 8618968 8619009 |
KEGGi | ddi:DDB_G0273445 ddi:DDB_G0273531 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AY353245 mRNA Translation: AAQ57595.1 AAFI02000010 Genomic DNA Translation: EAL70677.1 AAFI02000010 Genomic DNA Translation: EAL70720.1 U36938 mRNA Translation: AAA80242.1 Frameshift. |
RefSeqi | XP_644604.1, XM_639512.1 XP_644647.1, XM_639555.1 |
3D structure databases
SMRi | Q86AT8 |
ModBasei | Search... |
Protein-protein interaction databases
STRINGi | 44689.DDB0235343 |
Proteomic databases
PaxDbi | Q86AT8 |
Genome annotation databases
EnsemblProtistsi | EAL70677; EAL70677; DDB_G0273445 EAL70720; EAL70720; DDB_G0273531 |
GeneIDi | 8618968 8619009 |
KEGGi | ddi:DDB_G0273445 ddi:DDB_G0273531 |
Organism-specific databases
dictyBasei | DDB_G0273445, spkA-1 DDB_G0273531, spkA-2 |
Phylogenomic databases
eggNOGi | KOG0192, Eukaryota |
HOGENOMi | CLU_020450_0_0_1 |
InParanoidi | Q86AT8 |
OMAi | NSITWET |
PhylomeDBi | Q86AT8 |
Miscellaneous databases
PROi | PR:Q86AT8 |
Family and domain databases
Gene3Di | 1.10.150.50, 1 hit 1.25.40.20, 2 hits |
InterProi | View protein in InterPro IPR002110, Ankyrin_rpt IPR020683, Ankyrin_rpt-contain_dom IPR036770, Ankyrin_rpt-contain_sf IPR011009, Kinase-like_dom_sf IPR000719, Prot_kinase_dom IPR017441, Protein_kinase_ATP_BS IPR001660, SAM IPR013761, SAM/pointed_sf IPR001245, Ser-Thr/Tyr_kinase_cat_dom IPR008271, Ser/Thr_kinase_AS |
Pfami | View protein in Pfam PF12796, Ank_2, 2 hits PF07714, PK_Tyr_Ser-Thr, 1 hit PF00536, SAM_1, 1 hit |
PRINTSi | PR01415, ANKYRIN |
SMARTi | View protein in SMART SM00248, ANK, 6 hits SM00220, S_TKc, 1 hit SM00454, SAM, 1 hit |
SUPFAMi | SSF47769, SSF47769, 1 hit SSF48403, SSF48403, 1 hit SSF56112, SSF56112, 1 hit |
PROSITEi | View protein in PROSITE PS50297, ANK_REP_REGION, 1 hit PS50088, ANK_REPEAT, 3 hits PS00107, PROTEIN_KINASE_ATP, 1 hit PS50011, PROTEIN_KINASE_DOM, 1 hit PS00108, PROTEIN_KINASE_ST, 1 hit PS50105, SAM_DOMAIN, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | SPKA_DICDI | |
Accessioni | Q86AT8Primary (citable) accession number: Q86AT8 Secondary accession number(s): Q23859, Q557I8 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | November 25, 2008 |
Last sequence update: | June 1, 2003 | |
Last modified: | December 2, 2020 | |
This is version 128 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) |
Miscellaneousi
Keywords - Technical termi
Reference proteomeDocuments
- Dictyostelium discoideum
Dictyostelium discoideum: entries, gene names and cross-references to dictyBase - SIMILARITY comments
Index of protein domains and families