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Protein

Serine/threonine-protein kinase SIK2

Gene

Sik2

Organism
Mus musculus (Mouse)
Status
Reviewed-Annotation score: Annotation score: 5 out of 5-Experimental evidence at protein leveli

Functioni

Phosphorylates 'Ser-789' of IRS1 in insulin-stimulated adipocytes, potentially modulating the efficiency of insulin signal transduction. Inhibits CREB activity by phosphorylating and repressing TORCs, the CREB-specific coactivators.2 Publications

Catalytic activityi

ATP + a protein = ADP + a phosphoprotein.1 Publication

Cofactori

Mg2+1 Publication

Enzyme regulationi

Activated by phosphorylation on Thr-175.By similarity

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei49ATPPROSITE-ProRule annotation1 Publication1
Active sitei142Proton acceptorPROSITE-ProRule annotationBy similarity1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Nucleotide bindingi26 – 34ATPPROSITE-ProRule annotationBy similarity9

GO - Molecular functioni

  • ATP binding Source: UniProtKB
  • magnesium ion binding Source: UniProtKB
  • protein serine/threonine kinase activity Source: UniProtKB

GO - Biological processi

  • insulin receptor signaling pathway Source: MGI
  • intracellular signal transduction Source: UniProtKB
  • protein autophosphorylation Source: UniProtKB
  • protein phosphorylation Source: UniProtKB
  • regulation of insulin receptor signaling pathway Source: UniProtKB
Complete GO annotation...

Keywords - Molecular functioni

Kinase, Serine/threonine-protein kinase, Transferase

Keywords - Ligandi

ATP-binding, Magnesium, Metal-binding, Nucleotide-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Serine/threonine-protein kinase SIK2 (EC:2.7.11.1)
Alternative name(s):
Salt-inducible kinase 2
Short name:
SIK-2
Serine/threonine-protein kinase SNF1-like kinase 2
Gene namesi
Name:Sik2
Synonyms:Snf1lk2
OrganismiMus musculus (Mouse)
Taxonomic identifieri10090 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaSciurognathiMuroideaMuridaeMurinaeMusMus
Proteomesi
  • UP000000589 Componenti: Unplaced

Organism-specific databases

MGIiMGI:2445031. Sik2.

Subcellular locationi

GO - Cellular componenti

  • cytoplasm Source: UniProtKB
  • nucleus Source: MGI
Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm

Pathology & Biotechi

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Mutagenesisi49K → M: Loss of kinase activity. 2 Publications1
Mutagenesisi175T → E: Low levels of constitutive activity. 1 Publication1

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00000866631 – 931Serine/threonine-protein kinase SIK2Add BLAST931

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei25PhosphothreonineBy similarity1
Modified residuei53N6-acetyllysine; by EP300By similarity1
Modified residuei175PhosphothreonineBy similarity1
Modified residuei532PhosphoserineCombined sources1
Modified residuei534PhosphoserineCombined sources1
Modified residuei587PhosphoserineCombined sources1

Post-translational modificationi

Phosphorylated at Thr-175 by STK11/LKB1 in complex with STE20-related adapter-alpha (STRADA) pseudo kinase and CAB39.By similarity
Acetylation at Lys-53 inhibits kinase activity. Deacetylated by HDAC6 (By similarity).By similarity

Keywords - PTMi

Acetylation, Phosphoprotein

Proteomic databases

MaxQBiQ8CFH6.
PaxDbiQ8CFH6.
PRIDEiQ8CFH6.

PTM databases

iPTMnetiQ8CFH6.
PhosphoSitePlusiQ8CFH6.

Expressioni

Tissue specificityi

Present in both white and brown adipose tissues with levels increasing during adipocyte differentiation. Lower levels observed in the testis.1 Publication

Gene expression databases

CleanExiMM_SNF1LK2.

Interactioni

Subunit structurei

Interacts with and phosphorylates TORC2/CRTC2.By similarity

Protein-protein interaction databases

BioGridi231647. 1 interactor.
DIPiDIP-60734N.
STRINGi10090.ENSMUSP00000038761.

Structurei

3D structure databases

ProteinModelPortaliQ8CFH6.
SMRiQ8CFH6.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini20 – 271Protein kinasePROSITE-ProRule annotationAdd BLAST252
Domaini295 – 335UBAPROSITE-ProRule annotationAdd BLAST41

Sequence similaritiesi

Contains 1 protein kinase domain.PROSITE-ProRule annotation
Contains 1 UBA domain.PROSITE-ProRule annotation

Phylogenomic databases

eggNOGiKOG0586. Eukaryota.
ENOG410XNQ0. LUCA.
HOGENOMiHOG000048716.
InParanoidiQ8CFH6.
KOiK16311.
PhylomeDBiQ8CFH6.

Family and domain databases

InterProiIPR011009. Kinase-like_dom.
IPR000719. Prot_kinase_dom.
IPR017441. Protein_kinase_ATP_BS.
IPR008271. Ser/Thr_kinase_AS.
IPR017090. Ser/Thr_kinase_SIK1/2.
IPR015940. UBA.
[Graphical view]
PfamiPF00069. Pkinase. 1 hit.
[Graphical view]
PIRSFiPIRSF037014. Ser/Thr_PK_SNF1-like. 1 hit.
SMARTiSM00220. S_TKc. 1 hit.
[Graphical view]
SUPFAMiSSF56112. SSF56112. 2 hits.
PROSITEiPS00107. PROTEIN_KINASE_ATP. 1 hit.
PS50011. PROTEIN_KINASE_DOM. 1 hit.
PS00108. PROTEIN_KINASE_ST. 1 hit.
PS50030. UBA. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q8CFH6-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MVMADGPRHL QRGPVRVGFY DIEGTLGKGN FAVVKLGRHR TTKTEVAIKI
60 70 80 90 100
IDKSQLDAVN LEKIYREVQI MKMLDHPHII KLYQVMETKS MLYLVTEYAK
110 120 130 140 150
NGEIFDYLAN HGRLNESEAR RKFWQILSAV DYCHGRKVVH RDLKAENLLL
160 170 180 190 200
DNNMNIKIAD FGFGNFFKTG ELLATWCGSP PYAAPEVFEG QQYEGPQLDI
210 220 230 240 250
WSMGVVLYVL VCGALPFDGP TLPILRQRVL EGRFRIPYFM SEDCEHLIRR
260 270 280 290 300
MLVLDPSKRL SIAQIKEHKW MLIEVPVQRP ILYPQEQENE PSIGEFNEQV
310 320 330 340 350
LRLMHSLGID QQKTVESLQN KSYNHFAAIY FLLVERLKSH RSSFPVEQRL
360 370 380 390 400
DGRQRRPSTI AEQTVAKAQT VGLPVTLHPP NVRLMRSTLL PQASNVEAFS
410 420 430 440 450
FPTSSCQAEA AFMEEECVDT PKVNGCLLDP VPPVLVRKGC QSLPSSMMET
460 470 480 490 500
SIDEGLETEG EAEEDPSQAF EAFQATRSGQ RRHTLSEVTN QLVVMPGAGK
510 520 530 540 550
MFSMSDNPSL ESVDSEYDMG SAQRDLNFLE DSPSLKDIML ANQPSPRMTS
560 570 580 590 600
PFISLRPANP AMQALSSQKR EAHNRSPVSF REGRRASDTS LTQGIVAFRQ
610 620 630 640 650
HLQNLARTKG ILELNKVQLL YEQMGSNADP TLTSTAPQLQ DLSSSCPQEE
660 670 680 690 700
ISQQQESVSS LSASMHPQLS PQQSLETQYL QHRLQKPNLL PKAQSPCPVY
710 720 730 740 750
CKEPPRSLEQ QLQEHRLQQK RLFLQKQSQL QAYFNQMQIA ESSYPGPSQQ
760 770 780 790 800
LALPHQETPL TSQQPPSFSL TQALSPVLEP SSEQMQFSSF LSQYPEMQLQ
810 820 830 840 850
PLPSTPGPRA PPPLPSQLQQ HQQPPPPPPP PPPQQPGAAP TSLQFSYQTC
860 870 880 890 900
ELPSTTSSVP NYPASCHYPV DGAQQSNLTG ADCPRSSGLQ DTASSYDPLA
910 920 930
LSELPGLFDC EMVEAVDPQH NGVVSCLARE T
Length:931
Mass (Da):104,198
Last modified:March 1, 2003 - v1
Checksum:i5CF2FB8DCDC689F4
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AB067780 mRNA. Translation: BAC53845.1.
CCDSiCCDS40627.1.
RefSeqiNP_848825.2. NM_178710.3.
UniGeneiMm.104932.
Mm.439989.

Genome annotation databases

GeneIDi235344.
KEGGimmu:235344.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AB067780 mRNA. Translation: BAC53845.1.
CCDSiCCDS40627.1.
RefSeqiNP_848825.2. NM_178710.3.
UniGeneiMm.104932.
Mm.439989.

3D structure databases

ProteinModelPortaliQ8CFH6.
SMRiQ8CFH6.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

BioGridi231647. 1 interactor.
DIPiDIP-60734N.
STRINGi10090.ENSMUSP00000038761.

PTM databases

iPTMnetiQ8CFH6.
PhosphoSitePlusiQ8CFH6.

Proteomic databases

MaxQBiQ8CFH6.
PaxDbiQ8CFH6.
PRIDEiQ8CFH6.

Protocols and materials databases

DNASUi235344.
Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi235344.
KEGGimmu:235344.

Organism-specific databases

CTDi23235.
MGIiMGI:2445031. Sik2.

Phylogenomic databases

eggNOGiKOG0586. Eukaryota.
ENOG410XNQ0. LUCA.
HOGENOMiHOG000048716.
InParanoidiQ8CFH6.
KOiK16311.
PhylomeDBiQ8CFH6.

Miscellaneous databases

PROiQ8CFH6.
SOURCEiSearch...

Gene expression databases

CleanExiMM_SNF1LK2.

Family and domain databases

InterProiIPR011009. Kinase-like_dom.
IPR000719. Prot_kinase_dom.
IPR017441. Protein_kinase_ATP_BS.
IPR008271. Ser/Thr_kinase_AS.
IPR017090. Ser/Thr_kinase_SIK1/2.
IPR015940. UBA.
[Graphical view]
PfamiPF00069. Pkinase. 1 hit.
[Graphical view]
PIRSFiPIRSF037014. Ser/Thr_PK_SNF1-like. 1 hit.
SMARTiSM00220. S_TKc. 1 hit.
[Graphical view]
SUPFAMiSSF56112. SSF56112. 2 hits.
PROSITEiPS00107. PROTEIN_KINASE_ATP. 1 hit.
PS50011. PROTEIN_KINASE_DOM. 1 hit.
PS00108. PROTEIN_KINASE_ST. 1 hit.
PS50030. UBA. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiSIK2_MOUSE
AccessioniPrimary (citable) accession number: Q8CFH6
Entry historyi
Integrated into UniProtKB/Swiss-Prot: February 15, 2005
Last sequence update: March 1, 2003
Last modified: November 2, 2016
This is version 115 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. MGD cross-references
    Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot
  2. Human and mouse protein kinases
    Human and mouse protein kinases: classification and index
  3. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.