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UniProtKB - Q94K71 (CBBY_ARATH)
Protein
CBBY-like protein
Gene
CBBY
Organism
Arabidopsis thaliana (Mouse-ear cress)
Status
Functioni
Highly selective xylulose-1,5-bisphosphate (XuBP) phosphatase. Shows also activity towards ribulose-1,5-bisphosphate (RuBP) and fructose-1,6-bisphosphate (FBP), but not towards fructose-6-phosphate (F6P) or ribulose-5-phosphate (Ru5P) (PubMed:27246049).
Degrades xylulose-1,5-bisphosphate, a potent inhibitor of rubisco produced by the rubisco itself (PubMed:27246049).
1 PublicationCatalytic activityi
Cofactori
Mg2+1 Publication
Kineticsi
kcat is 2.45 sec(-1) with xylulose-1,5-bisphosphate as substrate. kcat is 0.049 sec(-1) with ribulose-1,5-bisphosphate as substrate.1 Publication
- KM=0.033 mM for xylulose-1,5-bisphosphate1 Publication
- KM=3.06 mM for ribulose-1,5-bisphosphate1 Publication
- KM=6.2 mM for fructose-1,6-bisphosphate1 Publication
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Active sitei | 82 | Nucleophile1 Publication | 1 | |
Metal bindingi | 82 | MagnesiumCombined sources | 1 | |
Binding sitei | 82 | SubstrateBy similarity | 1 | |
Active sitei | 84 | Proton donor1 Publication | 1 | |
Metal bindingi | 84 | Magnesium; via carbonyl oxygenCombined sources | 1 | |
Binding sitei | 91 | SubstrateBy similarity | 1 | |
Metal bindingi | 258 | MagnesiumCombined sources | 1 |
GO - Molecular functioni
- hydrolase activity Source: UniProtKB-KW
- metal ion binding Source: UniProtKB-KW
Keywordsi
Molecular function | Hydrolase |
Ligand | Magnesium, Metal-binding |
Names & Taxonomyi
Protein namesi | Recommended name: CBBY-like protein1 Publication (EC:3.1.3.-1 Publication)Short name: AtCbby1 Publication |
Gene namesi | Name:CBBY1 Publication Ordered Locus Names:At3g48420Imported ORF Names:T29H11.60Imported |
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 | AT3G48420 |
TAIRi | locus:2101165, AT3G48420 |
Subcellular locationi
Chloroplast
- chloroplast Curated
Chloroplast
- chloroplast Source: TAIR
- chloroplast envelope Source: TAIR
- chloroplast stroma Source: TAIR
Cytosol
- cytosol Source: TAIR
Keywords - Cellular componenti
Chloroplast, PlastidPathology & Biotechi
Mutagenesis
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Mutagenesisi | 84 | D → N: Loss of catalytic activity. 1 Publication | 1 | |
Mutagenesisi | 91 | E → A: 40% to 80% decreased catalytic activity with xylulose-1,5-bisphosphate, but no effect on activity with ribulose-1,5-bisphosphate. 1 Publication | 1 | |
Mutagenesisi | 95 | H → A: 40% to 80% decreased catalytic activity with xylulose-1,5-bisphosphate, but no effect on activity with ribulose-1,5-bisphosphate. 1 Publication | 1 | |
Mutagenesisi | 117 | Y → A: 40% to 80% decreased catalytic activity with xylulose-1,5-bisphosphate, but no effect on activity with ribulose-1,5-bisphosphate. 1 Publication | 1 | |
Mutagenesisi | 129 | R → A: 97% decreased catalytic activity with xylulose-1,5-bisphosphate, but no effect on activity with ribulose-1,5-bisphosphate. 1 Publication | 1 | |
Mutagenesisi | 161 | K → A: 40% to 80% decreased catalytic activity with xylulose-1,5-bisphosphate, but no effect on activity with ribulose-1,5-bisphosphate. 1 Publication | 1 |
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Transit peptidei | 1 – 65 | ChloroplastSequence analysisAdd BLAST | 65 | |
ChainiPRO_0000424321 | 66 – 319 | CBBY-like proteinAdd BLAST | 254 |
Proteomic databases
PaxDbi | Q94K71 |
PRIDEi | Q94K71 |
ProteomicsDBi | 223926 |
PTM databases
MetOSitei | Q94K71 |
Expressioni
Gene expression databases
ExpressionAtlasi | Q94K71, baseline and differential |
Genevisiblei | Q94K71, AT |
Structurei
Secondary structure
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details3D structure databases
AlphaFoldDBi | Q94K71 |
SMRi | Q94K71 |
ModBasei | Search... |
PDBe-KBi | Search... |
Family & Domainsi
Region
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Regioni | 125 – 129 | Substrate bindingBy similarity | 5 | |
Regioni | 158 – 161 | Substrate bindingBy similarity | 4 | |
Regioni | 198 – 204 | Substrate bindingBy similarity | 7 |
Sequence similaritiesi
Keywords - Domaini
Transit peptidePhylogenomic databases
eggNOGi | KOG2914, Eukaryota |
HOGENOMi | CLU_045011_0_0_1 |
InParanoidi | Q94K71 |
OMAi | LEGVYWD |
OrthoDBi | 747123at2759 |
PhylomeDBi | Q94K71 |
Family and domain databases
Gene3Di | 1.10.150.240, 1 hit 3.40.50.1000, 1 hit |
InterProi | View protein in InterPro IPR044999, CbbY-like IPR036412, HAD-like_sf IPR006439, HAD-SF_hydro_IA IPR041492, HAD_2 IPR023214, HAD_sf IPR023198, PGP-like_dom2 |
PANTHERi | PTHR42896, PTHR42896, 1 hit |
Pfami | View protein in Pfam PF13419, HAD_2, 1 hit |
SUPFAMi | SSF56784, SSF56784, 1 hit |
TIGRFAMsi | TIGR01509, HAD-SF-IA-v3, 1 hit |
i Sequence
Sequence statusi: Complete.
: The displayed sequence is further processed into a mature form. Sequence processingi
Q94K71-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MATVKISLSL ASLSPSSSSS SIQSKLSPSF IPNAAPAKAV KLRFNGKSLR
60 70 80 90 100
AKPMVYRSSR SVGVTCSASS SLTTLPSALL FDCDGVLVDT EKDGHRISFN
110 120 130 140 150
DTFKERDLNV TWDVDLYGEL LKIGGGKERM TAYFNKVGWP EKAPKDEAER
160 170 180 190 200
KEFIAGLHKQ KTELFMVLIE KKLLPLRPGV AKLVDQALTN GVKVAVCSTS
210 220 230 240 250
NEKAVSAIVS CLLGPERAEK IKIFAGDVVP KKKPDPAIYN LAAETLGVDP
260 270 280 290 300
SKCVVVEDSA IGLAAAKAAG MTCIVTKSGY TADEDFENAD AVFDCIGDPP
310
EERFDLAFCG SLLRKQFVS
Sequence cautioni
The sequence CAB41156 differs from that shown. Reason: Erroneous gene model prediction. The predicted gene has been split into 2 genes: At3g48420 and At3g48425.Curated
Experimental Info
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Sequence conflicti | 106 | R → G in BAD43740 (Ref. 5) Curated | 1 | |
Sequence conflicti | 314 | R → Q in AAM63700 (Ref. 6) Curated | 1 |
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AL049659 Genomic DNA Translation: CAB41156.1 Sequence problems. CP002686 Genomic DNA Translation: AEE78414.1 AF370250 mRNA Translation: AAK44065.1 AY063066 mRNA Translation: AAL34240.1 AK118118 mRNA Translation: BAC42744.1 AK175866 mRNA Translation: BAD43629.1 AK175977 mRNA Translation: BAD43740.1 AK176795 mRNA Translation: BAD44558.1 AY086642 mRNA Translation: AAM63700.1 |
PIRi | T06700 |
RefSeqi | NP_566903.1, NM_114701.3 |
Genome annotation databases
EnsemblPlantsi | AT3G48420.1; AT3G48420.1; AT3G48420 |
GeneIDi | 824000 |
Gramenei | AT3G48420.1; AT3G48420.1; AT3G48420 |
KEGGi | ath:AT3G48420 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AL049659 Genomic DNA Translation: CAB41156.1 Sequence problems. CP002686 Genomic DNA Translation: AEE78414.1 AF370250 mRNA Translation: AAK44065.1 AY063066 mRNA Translation: AAL34240.1 AK118118 mRNA Translation: BAC42744.1 AK175866 mRNA Translation: BAD43629.1 AK175977 mRNA Translation: BAD43740.1 AK176795 mRNA Translation: BAD44558.1 AY086642 mRNA Translation: AAM63700.1 |
PIRi | T06700 |
RefSeqi | NP_566903.1, NM_114701.3 |
3D structure databases
Select the link destinations: PDBei RCSB PDBi PDBji Links Updated | PDB entry | Method | Resolution (Å) | Chain | Positions | PDBsum |
4UAV | X-ray | 1.30 | A | 74-319 | [»] | |
AlphaFoldDBi | Q94K71 | |||||
SMRi | Q94K71 | |||||
ModBasei | Search... | |||||
PDBe-KBi | Search... |
Protein-protein interaction databases
STRINGi | 3702.AT3G48420.1 |
PTM databases
MetOSitei | Q94K71 |
Proteomic databases
PaxDbi | Q94K71 |
PRIDEi | Q94K71 |
ProteomicsDBi | 223926 |
Genome annotation databases
EnsemblPlantsi | AT3G48420.1; AT3G48420.1; AT3G48420 |
GeneIDi | 824000 |
Gramenei | AT3G48420.1; AT3G48420.1; AT3G48420 |
KEGGi | ath:AT3G48420 |
Organism-specific databases
Araporti | AT3G48420 |
TAIRi | locus:2101165, AT3G48420 |
Phylogenomic databases
eggNOGi | KOG2914, Eukaryota |
HOGENOMi | CLU_045011_0_0_1 |
InParanoidi | Q94K71 |
OMAi | LEGVYWD |
OrthoDBi | 747123at2759 |
PhylomeDBi | Q94K71 |
Miscellaneous databases
PROi | PR:Q94K71 |
Gene expression databases
ExpressionAtlasi | Q94K71, baseline and differential |
Genevisiblei | Q94K71, AT |
Family and domain databases
Gene3Di | 1.10.150.240, 1 hit 3.40.50.1000, 1 hit |
InterProi | View protein in InterPro IPR044999, CbbY-like IPR036412, HAD-like_sf IPR006439, HAD-SF_hydro_IA IPR041492, HAD_2 IPR023214, HAD_sf IPR023198, PGP-like_dom2 |
PANTHERi | PTHR42896, PTHR42896, 1 hit |
Pfami | View protein in Pfam PF13419, HAD_2, 1 hit |
SUPFAMi | SSF56784, SSF56784, 1 hit |
TIGRFAMsi | TIGR01509, HAD-SF-IA-v3, 1 hit |
MobiDBi | Search... |
Entry informationi
Entry namei | CBBY_ARATH | |
Accessioni | Q94K71Primary (citable) accession number: Q94K71 Secondary accession number(s): Q67ZZ0, Q8LCE8, Q9STM2 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | November 13, 2013 |
Last sequence update: | December 1, 2001 | |
Last modified: | May 25, 2022 | |
This is version 138 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
3D-structure, Reference proteomeDocuments
- Arabidopsis thaliana
Arabidopsis thaliana: entries and gene names - PDB cross-references
Index of Protein Data Bank (PDB) cross-references - SIMILARITY comments
Index of protein domains and families