UniProtKB - Q4ADV8 (CKX2_ORYSJ)
Cytokinin dehydrogenase 2
CKX2
Functioni
Catalyzes the oxidation of cytokinins, a family of N6-substituted adenine derivatives that are plant hormones, where the substituent is an isopentenyl group (PubMed:15976269).
Is a major QTL involved in grain yield (PubMed:15976269).
Modulates the number of reproductive organs by regulating the cytokinin accumulation in inflorescence meristems (PubMed:15976269, PubMed:28337744).
Acts as negative regulator of panicle branching (PubMed:15976269, PubMed:28337744).
2 PublicationsCatalytic activityi
Cofactori
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Binding sitei | 118 | FAD; via carbonyl oxygenBy similarity | 1 | |
Binding sitei | 179 | FAD; via amide nitrogenBy similarity | 1 | |
Binding sitei | 184 | FADBy similarity | 1 | |
Binding sitei | 245 | FAD; via amide nitrogen and carbonyl oxygenBy similarity | 1 | |
Binding sitei | 517 | FADBy similarity | 1 |
Regions
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Nucleotide bindingi | 108 – 112 | FADBy similarity | 5 | |
Nucleotide bindingi | 113 – 114 | FADBy similarity | 2 | |
Nucleotide bindingi | 190 – 194 | FADBy similarity | 5 | |
Nucleotide bindingi | 554 – 557 | FADBy similarity | 4 |
GO - Molecular functioni
- cytokinin dehydrogenase activity Source: UniProtKB
- FAD binding Source: InterPro
- oxidoreductase activity Source: GO_Central
GO - Biological processi
- cytokinin-activated signaling pathway Source: UniProtKB-KW
- cytokinin metabolic process Source: InterPro
- inflorescence development Source: UniProtKB
Keywordsi
Molecular function | Developmental protein, Oxidoreductase |
Biological process | Cytokinin signaling pathway |
Ligand | FAD, Flavoprotein |
Names & Taxonomyi
Protein namesi | Recommended name: Cytokinin dehydrogenase 2Curated (EC:1.5.99.121 Publication)Alternative name(s): Cytokinin oxidase 21 Publication Short name: OsCKX21 Publication QTL grain number 1a1 Publication Short name: Gn1a1 Publication |
Gene namesi | Name:CKX21 Publication Ordered Locus Names:Os01g0197700Imported, LOC_Os01g10110Curated ORF Names:B1046G12.8Imported, OsJ_00744Imported, P0419B01.20Imported |
Organismi | Oryza sativa subsp. japonica (Rice) |
Taxonomic identifieri | 39947 [NCBI] |
Taxonomic lineagei | Eukaryota › Viridiplantae › Streptophyta › Embryophyta › Tracheophyta › Spermatophyta › Magnoliopsida › Liliopsida › Poales › Poaceae › BOP clade › Oryzoideae › Oryzeae › Oryzinae › Oryza › Oryza sativa |
Proteomesi |
|
Subcellular locationi
Extracellular region or secreted
- extracellular space By similarity
Extracellular region or secreted
- extracellular space Source: UniProtKB-SubCell
Keywords - Cellular componenti
SecretedPathology & Biotechi
Disruption phenotypei
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Signal peptidei | 1 – 20 | Sequence analysisAdd BLAST | 20 | |
ChainiPRO_0000394205 | 21 – 565 | Cytokinin dehydrogenase 2Add BLAST | 545 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Modified residuei | 113 | Pros-8alpha-FAD histidineBy similarity | 1 | |
Glycosylationi | 464 | N-linked (GlcNAc...) asparagineSequence analysis | 1 |
Post-translational modificationi
Keywords - PTMi
GlycoproteinProteomic databases
PaxDbi | Q4ADV8 |
Expressioni
Tissue specificityi
Gene expression databases
Genevisiblei | Q4ADV8, OS |
Interactioni
Subunit structurei
Monomer.
By similarityProtein-protein interaction databases
STRINGi | 4530.OS01T0197700-01 |
Family & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Domaini | 74 – 255 | FAD-binding PCMH-typePROSITE-ProRule annotationAdd BLAST | 182 |
Sequence similaritiesi
Keywords - Domaini
SignalPhylogenomic databases
eggNOGi | KOG1231, Eukaryota |
HOGENOMi | CLU_024955_1_0_1 |
InParanoidi | Q4ADV8 |
OMAi | MANKRRN |
OrthoDBi | 733611at2759 |
Family and domain databases
Gene3Di | 3.30.43.10, 1 hit 3.30.465.10, 1 hit 3.40.462.10, 1 hit |
InterProi | View protein in InterPro IPR016170, Cytok_DH_C_sf IPR015345, Cytokinin_DH_FAD/cytokin-bd IPR016166, FAD-bd_PCMH IPR036318, FAD-bd_PCMH-like_sf IPR016167, FAD-bd_PCMH_sub1 IPR016169, FAD-bd_PCMH_sub2 IPR016164, FAD-linked_Oxase-like_C IPR006094, Oxid_FAD_bind_N |
Pfami | View protein in Pfam PF09265, Cytokin-bind, 1 hit PF01565, FAD_binding_4, 1 hit |
SUPFAMi | SSF55103, SSF55103, 1 hit SSF56176, SSF56176, 1 hit |
PROSITEi | View protein in PROSITE PS51387, FAD_PCMH, 1 hit |
i Sequence
Sequence statusi: Complete.
: The displayed sequence is further processed into a mature form. Sequence processingi
10 20 30 40 50
MKQEQVRMAV LLMLNCFVKA TAPPPWPPSA SSASFLDDLG DLGIAPLIRA
60 70 80 90 100
DEAGTARASA DFGNLSVAGV GAPRLAAAAA VLYPSRPADI AALLRASCAR
110 120 130 140 150
PAPFAVSARG CGHSVHGQAS APDGVVVDMA SLGRLQGGGA RRLAVSVEGR
160 170 180 190 200
YVDAGGEQLW VDVLRASMAH GLTPVSWTDY LHLTVGGTLS NAGISGQAFR
210 220 230 240 250
HGPQISNVLE LDVITGVGEM VTCSKEKAPD LFDAVLGGLG QFGVITRARI
260 270 280 290 300
PLAPAPARAR WVRFVYTTAA AMTADQERLI AVDRAGGAGA VGGLMDYVEG
310 320 330 340 350
SVHLNQGLVE TWRTQPQPPS PSSSSSSSFF SDADEARVAA LAKEAGGVLY
360 370 380 390 400
FLEGAIYFGG AAGPSAADVD KRMDVLRREL RHERGFVFAQ DVAYAGFLDR
410 420 430 440 450
VHDGELKLRA AGLWDVPHPW LNLFLPRSGV LAFADGVFHG ILSRTPAMGP
460 470 480 490 500
VLIYPMNRNK WDSNMSAVIT DDDGDEVFYT VGILRSAAAA GDVGRLEEQN
510 520 530 540 550
DEILGFCEVA GIAYKQYLPY YGSQAEWQKR HFGANLWPRF VQRKSKYDPK
560
AILSRGQGIF TSPLA
Sequence cautioni
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AB205193 mRNA Translation: BAE16612.1 AP003200 Genomic DNA Translation: BAB89407.1 Different initiation. AP003244 Genomic DNA Translation: BAB56095.1 Different initiation. AP014957 Genomic DNA Translation: BAS70876.1 CM000138 Genomic DNA Translation: EEE54051.1 Sequence problems. AK243684 mRNA Translation: BAH01708.1 |
RefSeqi | XP_015629416.1, XM_015773930.1 |
Genome annotation databases
EnsemblPlantsi | Os01t0197700-01; Os01t0197700-01; Os01g0197700 |
GeneIDi | 4327333 |
Gramenei | Os01t0197700-01; Os01t0197700-01; Os01g0197700 |
KEGGi | osa:4327333 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AB205193 mRNA Translation: BAE16612.1 AP003200 Genomic DNA Translation: BAB89407.1 Different initiation. AP003244 Genomic DNA Translation: BAB56095.1 Different initiation. AP014957 Genomic DNA Translation: BAS70876.1 CM000138 Genomic DNA Translation: EEE54051.1 Sequence problems. AK243684 mRNA Translation: BAH01708.1 |
RefSeqi | XP_015629416.1, XM_015773930.1 |
3D structure databases
AlphaFoldDBi | Q4ADV8 |
SMRi | Q4ADV8 |
ModBasei | Search... |
Protein-protein interaction databases
STRINGi | 4530.OS01T0197700-01 |
Proteomic databases
PaxDbi | Q4ADV8 |
Genome annotation databases
EnsemblPlantsi | Os01t0197700-01; Os01t0197700-01; Os01g0197700 |
GeneIDi | 4327333 |
Gramenei | Os01t0197700-01; Os01t0197700-01; Os01g0197700 |
KEGGi | osa:4327333 |
Phylogenomic databases
eggNOGi | KOG1231, Eukaryota |
HOGENOMi | CLU_024955_1_0_1 |
InParanoidi | Q4ADV8 |
OMAi | MANKRRN |
OrthoDBi | 733611at2759 |
Gene expression databases
Genevisiblei | Q4ADV8, OS |
Family and domain databases
Gene3Di | 3.30.43.10, 1 hit 3.30.465.10, 1 hit 3.40.462.10, 1 hit |
InterProi | View protein in InterPro IPR016170, Cytok_DH_C_sf IPR015345, Cytokinin_DH_FAD/cytokin-bd IPR016166, FAD-bd_PCMH IPR036318, FAD-bd_PCMH-like_sf IPR016167, FAD-bd_PCMH_sub1 IPR016169, FAD-bd_PCMH_sub2 IPR016164, FAD-linked_Oxase-like_C IPR006094, Oxid_FAD_bind_N |
Pfami | View protein in Pfam PF09265, Cytokin-bind, 1 hit PF01565, FAD_binding_4, 1 hit |
SUPFAMi | SSF55103, SSF55103, 1 hit SSF56176, SSF56176, 1 hit |
PROSITEi | View protein in PROSITE PS51387, FAD_PCMH, 1 hit |
MobiDBi | Search... |
Entry informationi
Entry namei | CKX2_ORYSJ | |
Accessioni | Q4ADV8Primary (citable) accession number: Q4ADV8 Secondary accession number(s): A0A0P0UZJ1, B9ETN0, Q94IV9 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | May 18, 2010 |
Last sequence update: | September 13, 2005 | |
Last modified: | May 25, 2022 | |
This is version 88 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
- Oryza sativa (rice)
Index of Oryza sativa entries and their corresponding gene designations - SIMILARITY comments
Index of protein domains and families