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Protein

SNF1 protein kinase subunit beta-2

Gene

SIP2

Organism
Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

Functioni

Beta subunit of the SNF1 kinase complex, which is required for transcriptional, metabolic, and developmental adaptations in response to glucose limitation. Has a structural role, mediating heterotrimer formation, and a regulatory role, defining carbon source-regulated subcellular location and substrate specificity of the SNF1 kinase complex. Involved in the regulation of aging. Acts as a negative regulator of nuclear SNF1 activity in young cells by sequestering its activating gamma subunit at the plasma membrane.2 Publications

Miscellaneous

Present with 300 molecules/cell in log phase SD medium.1 Publication

GO - Biological processi

  • cellular response to glucose starvation Source: SGD
  • invasive growth in response to glucose limitation Source: SGD
  • positive regulation of pseudohyphal growth Source: SGD
  • protein phosphorylation Source: SGD
  • regulation of protein complex assembly Source: SGD
  • regulation of protein kinase activity Source: InterPro
  • replicative cell aging Source: SGD
  • signal transduction Source: SGD

Enzyme and pathway databases

BioCyciYEAST:G3O-30685-MONOMER
ReactomeiR-SCE-163680 AMPK inhibits chREBP transcriptional activation activity
R-SCE-200425 Import of palmitoyl-CoA into the mitochondrial matrix
R-SCE-380972 Energy dependent regulation of mTOR by LKB1-AMPK

Protein family/group databases

CAZyiCBM48 Carbohydrate-Binding Module Family 48

Names & Taxonomyi

Protein namesi
Recommended name:
SNF1 protein kinase subunit beta-2
Alternative name(s):
Protein SPM2
SNF1-interacting protein 2
Gene namesi
Name:SIP2
Synonyms:SPM2
Ordered Locus Names:YGL208W
ORF Names:G1155
OrganismiSaccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)
Taxonomic identifieri559292 [NCBI]
Taxonomic lineageiEukaryotaFungiDikaryaAscomycotaSaccharomycotinaSaccharomycetesSaccharomycetalesSaccharomycetaceaeSaccharomyces
Proteomesi
  • UP000002311 Componenti: Chromosome VII

Organism-specific databases

EuPathDBiFungiDB:YGL208W
SGDiS000003176 SIP2

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cell wall Cytoskeleton Vacuole Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

Keywords - Cellular componenti

Cell membrane, Cytoplasm, Membrane

Pathology & Biotechi

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Mutagenesisi2G → A: Changes protein distribution from the plasma membrane to the cytoplasm and nucleus and alters the cellular life span. 1 Publication1

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Initiator methionineiRemoved
ChainiPRO_00002043752 – 415SNF1 protein kinase subunit beta-2Add BLAST414

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Lipidationi2N-myristoyl glycine1 Publication1
Modified residuei66PhosphoserineCombined sources1
Modified residuei298PhosphoserineCombined sources1

Post-translational modificationi

Phosphorylated by SNF1 in vitro.1 Publication

Keywords - PTMi

Lipoprotein, Myristate, Phosphoprotein

Proteomic databases

MaxQBiP34164
PaxDbiP34164
PRIDEiP34164

PTM databases

iPTMnetiP34164

Expressioni

Inductioni

Induced upon shift to nonfermentable carbon sources.1 Publication

Interactioni

Subunit structurei

Component of the SNF1 kinase complex, a heterotrimeric complex composed of the catalytic alpha subunit SNF1, one of the three related beta subunits SIP1, SIP2 or GAL83, and the regulatory gamma subunit SNF4. The beta subunit serves as a bridge between the catalytic and the regulatory subunit. Interacts (via KIS domain) with SNF1. Interacts (via ASC domain) with SNF4.5 Publications

Binary interactionsi

Show more details

Protein-protein interaction databases

BioGridi33048, 153 interactors
DIPiDIP-865N
IntActiP34164, 42 interactors
MINTiP34164
STRINGi4932.YGL208W

Structurei

Secondary structure

1415
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Beta strandi164 – 170Combined sources7
Beta strandi177 – 181Combined sources5
Helixi182 – 184Combined sources3
Beta strandi196 – 198Combined sources3
Beta strandi202 – 208Combined sources7
Beta strandi210 – 219Combined sources10
Beta strandi222 – 224Combined sources3
Beta strandi231 – 233Combined sources3
Beta strandi240 – 245Combined sources6
Beta strandi305 – 307Combined sources3
Helixi311 – 313Combined sources3
Helixi316 – 324Combined sources9
Helixi336 – 338Combined sources3
Helixi345 – 347Combined sources3
Helixi349 – 365Combined sources17
Helixi375 – 377Combined sources3
Beta strandi380 – 383Combined sources4
Beta strandi390 – 399Combined sources10
Beta strandi402 – 411Combined sources10

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
2QLVX-ray2.60B/E161-412[»]
3T4NX-ray2.30B304-415[»]
3TDHX-ray2.30B304-415[»]
3TE5X-ray2.50B304-415[»]
ProteinModelPortaliP34164
SMRiP34164
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP34164

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni154 – 335Kinase-interacting sequence (KIS); required for interaction with SNF1Add BLAST182
Regioni336 – 415Association with SNF1 kinase complex (ASC) domain; required for interaction with SNF41 PublicationAdd BLAST80

Sequence similaritiesi

Phylogenomic databases

GeneTreeiENSGT00390000001416
HOGENOMiHOG000093748
InParanoidiP34164
OrthoDBiEOG092C4NLT

Family and domain databases

Gene3Di2.60.40.10, 1 hit
InterProiView protein in InterPro
IPR032640 AMPK1_CBM
IPR006828 ASC_dom
IPR037256 ASC_dom_sf
IPR013783 Ig-like_fold
IPR014756 Ig_E-set
IPR030077 SIP2/GAL83
PANTHERiPTHR10343:SF45 PTHR10343:SF45, 1 hit
PfamiView protein in Pfam
PF16561 AMPK1_CBM, 1 hit
PF04739 AMPKBI, 1 hit
SMARTiView protein in SMART
SM01010 AMPKBI, 1 hit
SUPFAMiSSF160219 SSF160219, 1 hit
SSF81296 SSF81296, 1 hit

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

P34164-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MGTTTSHPAQ KKQTTKKCRA PIMSDVREKP SNAQGCEPQE MDAVSKKVTE
60 70 80 90 100
LSLNKCSDSQ DAGQPSREGS ITKKKSTLLL RDEDEPTMPK LSVMETAVDT
110 120 130 140 150
DSGSSSTSDD EEGDIIAQTT EPKQDASPDD DRSGHSSPRE EGQQQIRAKE
160 170 180 190 200
ASGGPSEIKS SLMVPVEIRW QQGGSKVYVT GSFTKWRKMI GLIPDSDNNG
210 220 230 240 250
SFHVKLRLLP GTHRFRFIVD NELRVSDFLP TATDQMGNFV NYIEVRQPEK
260 270 280 290 300
NPTNEKIRSK EADSMRPPTS DRSSIALQIG KDPDDFGDGY TRFHEDLSPR
310 320 330 340 350
PPLEYTTDIP AVFTDPSVME RYYYTLDRQQ SNTDTSWLTP PQLPPQLENV
360 370 380 390 400
ILNKYYATQD QFNENNSGAL PIPNHVVLNH LVTSSIKHNT LCVASIVRYK
410
QKYVTQILYT PIESS
Length:415
Mass (Da):46,405
Last modified:January 23, 2007 - v3
Checksum:iCBB4FCE0070A563F
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
Z14128 Genomic DNA Translation: CAA78503.1
L31592 Genomic DNA Translation: AAC37420.1
Z72730 Genomic DNA Translation: CAA96922.1
U33754 Genomic DNA Translation: AAC49497.1
BK006941 Genomic DNA Translation: DAA07908.1
PIRiS51792
RefSeqiNP_011307.1, NM_001181073.2

Genome annotation databases

EnsemblFungiiYGL208W; YGL208W; YGL208W
GeneIDi852664
KEGGisce:YGL208W

Similar proteinsi

Entry informationi

Entry nameiSIP2_YEAST
AccessioniPrimary (citable) accession number: P34164
Secondary accession number(s): D6VTU7
Entry historyiIntegrated into UniProtKB/Swiss-Prot: February 1, 1994
Last sequence update: January 23, 2007
Last modified: March 28, 2018
This is version 148 of the entry and version 3 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programFungal Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Reference proteome
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Main funding by: National Institutes of Health