UniProtKB - Q9JJH5 (F262_RAT)
Protein
6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase 2
Gene
Pfkfb2
Organism
Rattus norvegicus (Rat)
Status
Functioni
Synthesis and degradation of fructose 2,6-bisphosphate.
Catalytic activityi
Activity regulationi
The most important regulatory mechanism of these opposing activities is by phosphorylation and dephosphorylation of the enzyme.By similarity
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Binding sitei | 81 | Fructose 6-phosphateBy similarity | 1 | |
Binding sitei | 105 | Fructose 6-phosphateBy similarity | 1 | |
Active sitei | 131 | Sequence analysis | 1 | |
Binding sitei | 133 | Fructose 6-phosphateBy similarity | 1 | |
Binding sitei | 139 | Fructose 6-phosphateBy similarity | 1 | |
Active sitei | 161 | Sequence analysis | 1 | |
Binding sitei | 175 | Fructose 6-phosphateBy similarity | 1 | |
Binding sitei | 196 | Fructose 6-phosphateBy similarity | 1 | |
Binding sitei | 200 | Fructose 6-phosphateBy similarity | 1 | |
Binding sitei | 259 | Fructose 2,6-bisphosphateBy similarity | 1 | |
Sitei | 259 | Transition state stabilizerBy similarity | 1 | |
Active sitei | 260 | Tele-phosphohistidine intermediateBy similarity | 1 | |
Binding sitei | 266 | Fructose 2,6-bisphosphateBy similarity | 1 | |
Sitei | 266 | Transition state stabilizerBy similarity | 1 | |
Binding sitei | 272 | Fructose 2,6-bisphosphate; via amide nitrogenBy similarity | 1 | |
Active sitei | 329 | Proton donor/acceptorBy similarity | 1 | |
Binding sitei | 340 | Fructose 2,6-bisphosphateBy similarity | 1 | |
Binding sitei | 354 | Fructose 2,6-bisphosphateBy similarity | 1 | |
Binding sitei | 358 | Fructose 2,6-bisphosphateBy similarity | 1 | |
Binding sitei | 369 | Fructose 2,6-bisphosphateBy similarity | 1 | |
Sitei | 394 | Transition state stabilizerBy similarity | 1 | |
Binding sitei | 395 | Fructose 2,6-bisphosphateBy similarity | 1 | |
Binding sitei | 399 | Fructose 2,6-bisphosphateBy similarity | 1 | |
Binding sitei | 431 | ATPBy similarity | 1 |
Regions
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Nucleotide bindingi | 48 – 56 | ATPBy similarity | 9 | |
Nucleotide bindingi | 170 – 175 | ATPBy similarity | 6 | |
Nucleotide bindingi | 351 – 354 | ATPBy similarity | 4 | |
Nucleotide bindingi | 395 – 399 | ATPBy similarity | 5 |
GO - Molecular functioni
- 6-phosphofructo-2-kinase activity Source: UniProtKB
- ATP binding Source: UniProtKB-KW
- fructose-2,6-bisphosphate 2-phosphatase activity Source: CACAO
- kinase binding Source: RGD
- protein kinase binding Source: RGD
GO - Biological processi
- fructose 2,6-bisphosphate metabolic process Source: GO_Central
- fructose metabolic process Source: InterPro
- glucose catabolic process Source: RGD
- glycolytic process Source: UniProtKB
- lactate metabolic process Source: RGD
- positive regulation of glucokinase activity Source: RGD
- positive regulation of insulin secretion Source: RGD
- pyruvate metabolic process Source: RGD
- response to glucose Source: RGD
Keywordsi
Molecular function | Hydrolase, Kinase, Multifunctional enzyme, Transferase |
Ligand | ATP-binding, Nucleotide-binding |
Enzyme and pathway databases
BRENDAi | 2.7.1.105, 5301 3.1.3.46, 5301 |
Reactomei | R-RNO-9634600, Regulation of glycolysis by fructose 2,6-bisphosphate metabolism |
SABIO-RKi | Q9JJH5 |
Names & Taxonomyi
Protein namesi | Recommended name: 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase 2Short name: 6PF-2-K/Fru-2,6-P2ase 2 Short name: PFK/FBPase 2 Alternative name(s): 6PF-2-K/Fru-2,6-P2ase heart-type isozyme RH2K Including the following 2 domains: Fructose-2,6-bisphosphatase (EC:3.1.3.46) |
Gene namesi | Name:Pfkfb2 |
Organismi | Rattus norvegicus (Rat) |
Taxonomic identifieri | 10116 [NCBI] |
Taxonomic lineagei | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Myomorpha › Muroidea › Muridae › Murinae › Rattus |
Proteomesi |
|
Organism-specific databases
RGDi | 3309, Pfkfb2 |
Subcellular locationi
Cytosol
- cytosol Source: GO_Central
Nucleus
- nucleoplasm Source: Ensembl
Other locations
- cytoplasm Source: RGD
PTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Initiator methioninei | RemovedBy similarity | |||
ChainiPRO_0000179966 | 2 – 557 | 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase 2Add BLAST | 556 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Modified residuei | 2 | N-acetylserineBy similarity | 1 | |
Modified residuei | 32 | Phosphoserine; by PKABy similarity | 1 | |
Modified residuei | 469 | PhosphoserineCombined sources | 1 | |
Modified residuei | 471 | PhosphothreonineBy similarity | 1 | |
Modified residuei | 478 | Phosphothreonine; by PKCBy similarity | 1 | |
Modified residuei | 486 | PhosphoserineCombined sources | 1 | |
Modified residuei | 496 | PhosphoserineBy similarity | 1 |
Post-translational modificationi
Phosphorylation by AMPK stimulates activity.By similarity
Keywords - PTMi
Acetylation, PhosphoproteinProteomic databases
jPOSTi | Q9JJH5 |
PaxDbi | Q9JJH5 |
PTM databases
iPTMneti | Q9JJH5 |
PhosphoSitePlusi | Q9JJH5 |
Expressioni
Gene expression databases
Bgeei | ENSRNOG00000004162, Expressed in stomach and 21 other tissues |
ExpressionAtlasi | Q9JJH5, baseline and differential |
Genevisiblei | Q9JJH5, RN |
Interactioni
Subunit structurei
Homodimer.
By similarityGO - Molecular functioni
- kinase binding Source: RGD
- protein kinase binding Source: RGD
Protein-protein interaction databases
ComplexPortali | CPX-2041, 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 2 complex |
STRINGi | 10116.ENSRNOP00000005729 |
Family & Domainsi
Region
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Regioni | 2 – 251 | 6-phosphofructo-2-kinaseAdd BLAST | 250 | |
Regioni | 252 – 557 | Fructose-2,6-bisphosphataseAdd BLAST | 306 |
Sequence similaritiesi
In the C-terminal section; belongs to the phosphoglycerate mutase family.Curated
Phylogenomic databases
eggNOGi | KOG0234, Eukaryota |
GeneTreei | ENSGT00950000182835 |
HOGENOMi | CLU_006383_1_1_1 |
InParanoidi | Q9JJH5 |
OMAi | HDSCEWL |
OrthoDBi | 392001at2759 |
PhylomeDBi | Q9JJH5 |
TreeFami | TF313541 |
Family and domain databases
CDDi | cd07067, HP_PGM_like, 1 hit |
Gene3Di | 3.40.50.1240, 1 hit |
InterProi | View protein in InterPro IPR003094, 6Pfruct_kin IPR013079, 6Phosfructo_kin IPR013078, His_Pase_superF_clade-1 IPR029033, His_PPase_superfam IPR027417, P-loop_NTPase IPR001345, PG/BPGM_mutase_AS |
PANTHERi | PTHR10606, PTHR10606, 1 hit |
Pfami | View protein in Pfam PF01591, 6PF2K, 1 hit PF00300, His_Phos_1, 1 hit |
PRINTSi | PR00991, 6PFRUCTKNASE |
SMARTi | View protein in SMART SM00855, PGAM, 1 hit |
SUPFAMi | SSF52540, SSF52540, 1 hit SSF53254, SSF53254, 1 hit |
PROSITEi | View protein in PROSITE PS00175, PG_MUTASE, 1 hit |
s (4+)i Sequence
Sequence statusi: Complete.
: The displayed sequence is further processed into a mature form. Sequence processingi
This entry describes 4 produced by isoformsialternative splicing. AlignAdd to basketThis entry has 4 described isoforms and 2 potential isoforms that are computationally mapped.Show allAlign All
Isoform 3 (identifier: Q9JJH5-1) [UniParc]FASTAAdd to basket
This isoform has been chosen as the sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. canonicali
10 20 30 40 50
MSENSTFSTE DSSSSSYKPH ASNLRRAGKK CSWASYMTNS PTLIVMIGLP
60 70 80 90 100
ARGKTYVSKK LTRYLNWIGV PTKVFNLGVY RREAVKSYKS YDFFRHDNEE
110 120 130 140 150
AMKIRKQCAL VALEDVKAYF TEESGQIAVF DATNTTRERR DMILNFAKQN
160 170 180 190 200
AFKVFFVESV CDDPDVIAAN ILEVKVSSPD YPERNRENVM EDFLKRIECY
210 220 230 240 250
KVTYQPLDPD NYDKDLSFIK VMNVGQRFLV NRVQDYIQSK IVYYLMNIHV
260 270 280 290 300
HPRTIYLCRH GESEFNLLGK IGGDSGLSLR GKQFAQALKK FLEEQEIQDL
310 320 330 340 350
KVWTSQLKRT IQTAESLGVT YEQWKILNEI DAGVCEEMTY SEIEQRYPEE
360 370 380 390 400
FALRDQEKYL YRYPGGESYQ DLVQRLEPVI MELERQGNVL VISHQAVMRC
410 420 430 440 450
LLAYFLDKGA DELPYLRCPL HIIFKLTPVA YGCKVETITL NVEAVDTHRD
460 470 480 490 500
KPTHNFPKSQ TPVRMRRNSF TPLSSSNTIR RPRNYSVGSR PLKPLSPLRA
510 520 530 540 550
LDMQEGADQP KTQVQQGSAQ ATEHLQKALE FANGHREVEN VLAKHRRPSM
ASLTLLS
Computationally mapped potential isoform sequencesi
There are 2 potential isoforms mapped to this entry.BLASTAlignShow allAdd to basketC9DRP5 | C9DRP5_RAT | 6-phosphofructo-2-kinase | Pfkfb2 pfkfb2 | 274 | Annotation score: | ||
R9PXY6 | R9PXY6_RAT | 6-phosphofructo-2-kinase | Pfkfb2 rCG_46560 | 519 | Annotation score: |
Alternative sequence
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Alternative sequenceiVSP_004678 | 454 – 536 | Missing in isoform 4. CuratedAdd BLAST | 83 | |
Alternative sequenceiVSP_004676 | 514 – 536 | Missing in isoform 2. CuratedAdd BLAST | 23 | |
Alternative sequenceiVSP_004677 | 515 – 519 | QQGSA → SIPVV in isoform 1. Curated | 5 | |
Alternative sequenceiVSP_004679 | 520 – 547 | Missing in isoform 1. CuratedAdd BLAST | 28 |
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | S67900 mRNA Translation: AAB29678.1 L27084 mRNA Translation: AAA41132.1 AB040530 mRNA Translation: BAA96495.1 AB040531 mRNA Translation: BAA96496.1 AB040532 mRNA Translation: BAA96497.1 AB040533 mRNA Translation: BAA96498.1 |
PIRi | JC2037 |
RefSeqi | NP_001029136.1, NM_001033964.2 [Q9JJH5-3] NP_001029137.1, NM_001033965.2 [Q9JJH5-1] NP_536725.2, NM_080477.3 [Q9JJH5-4] XP_006249768.1, XM_006249706.3 XP_006249769.1, XM_006249707.3 XP_006249770.1, XM_006249708.1 XP_006249771.1, XM_006249709.3 [Q9JJH5-4] XP_006249773.1, XM_006249711.3 [Q9JJH5-1] |
Genome annotation databases
Ensembli | ENSRNOT00000005729; ENSRNOP00000005729; ENSRNOG00000004162 [Q9JJH5-1] ENSRNOT00000037679; ENSRNOP00000030819; ENSRNOG00000004162 [Q9JJH5-4] ENSRNOT00000050354; ENSRNOP00000044506; ENSRNOG00000004162 [Q9JJH5-3] |
GeneIDi | 24640 |
KEGGi | rno:24640 |
UCSCi | RGD:3309, rat [Q9JJH5-1] |
Keywords - Coding sequence diversityi
Alternative splicingSimilar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | S67900 mRNA Translation: AAB29678.1 L27084 mRNA Translation: AAA41132.1 AB040530 mRNA Translation: BAA96495.1 AB040531 mRNA Translation: BAA96496.1 AB040532 mRNA Translation: BAA96497.1 AB040533 mRNA Translation: BAA96498.1 |
PIRi | JC2037 |
RefSeqi | NP_001029136.1, NM_001033964.2 [Q9JJH5-3] NP_001029137.1, NM_001033965.2 [Q9JJH5-1] NP_536725.2, NM_080477.3 [Q9JJH5-4] XP_006249768.1, XM_006249706.3 XP_006249769.1, XM_006249707.3 XP_006249770.1, XM_006249708.1 XP_006249771.1, XM_006249709.3 [Q9JJH5-4] XP_006249773.1, XM_006249711.3 [Q9JJH5-1] |
3D structure databases
SMRi | Q9JJH5 |
ModBasei | Search... |
Protein-protein interaction databases
ComplexPortali | CPX-2041, 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 2 complex |
STRINGi | 10116.ENSRNOP00000005729 |
PTM databases
iPTMneti | Q9JJH5 |
PhosphoSitePlusi | Q9JJH5 |
Proteomic databases
jPOSTi | Q9JJH5 |
PaxDbi | Q9JJH5 |
Genome annotation databases
Ensembli | ENSRNOT00000005729; ENSRNOP00000005729; ENSRNOG00000004162 [Q9JJH5-1] ENSRNOT00000037679; ENSRNOP00000030819; ENSRNOG00000004162 [Q9JJH5-4] ENSRNOT00000050354; ENSRNOP00000044506; ENSRNOG00000004162 [Q9JJH5-3] |
GeneIDi | 24640 |
KEGGi | rno:24640 |
UCSCi | RGD:3309, rat [Q9JJH5-1] |
Organism-specific databases
CTDi | 5208 |
RGDi | 3309, Pfkfb2 |
Phylogenomic databases
eggNOGi | KOG0234, Eukaryota |
GeneTreei | ENSGT00950000182835 |
HOGENOMi | CLU_006383_1_1_1 |
InParanoidi | Q9JJH5 |
OMAi | HDSCEWL |
OrthoDBi | 392001at2759 |
PhylomeDBi | Q9JJH5 |
TreeFami | TF313541 |
Enzyme and pathway databases
BRENDAi | 2.7.1.105, 5301 3.1.3.46, 5301 |
Reactomei | R-RNO-9634600, Regulation of glycolysis by fructose 2,6-bisphosphate metabolism |
SABIO-RKi | Q9JJH5 |
Miscellaneous databases
PROi | PR:Q9JJH5 |
Gene expression databases
Bgeei | ENSRNOG00000004162, Expressed in stomach and 21 other tissues |
ExpressionAtlasi | Q9JJH5, baseline and differential |
Genevisiblei | Q9JJH5, RN |
Family and domain databases
CDDi | cd07067, HP_PGM_like, 1 hit |
Gene3Di | 3.40.50.1240, 1 hit |
InterProi | View protein in InterPro IPR003094, 6Pfruct_kin IPR013079, 6Phosfructo_kin IPR013078, His_Pase_superF_clade-1 IPR029033, His_PPase_superfam IPR027417, P-loop_NTPase IPR001345, PG/BPGM_mutase_AS |
PANTHERi | PTHR10606, PTHR10606, 1 hit |
Pfami | View protein in Pfam PF01591, 6PF2K, 1 hit PF00300, His_Phos_1, 1 hit |
PRINTSi | PR00991, 6PFRUCTKNASE |
SMARTi | View protein in SMART SM00855, PGAM, 1 hit |
SUPFAMi | SSF52540, SSF52540, 1 hit SSF53254, SSF53254, 1 hit |
PROSITEi | View protein in PROSITE PS00175, PG_MUTASE, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | F262_RAT | |
Accessioni | Q9JJH5Primary (citable) accession number: Q9JJH5 Secondary accession number(s): Q64297, Q9JHL5, Q9JJH4 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | January 24, 2001 |
Last sequence update: | October 1, 2000 | |
Last modified: | April 7, 2021 | |
This is version 162 of the entry and version 1 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Chordata Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Reference proteomeDocuments
- SIMILARITY comments
Index of protein domains and families