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Protein

Transcription activator GLK2

Gene

GLK2

Organism
Arabidopsis thaliana (Mouse-ear cress)
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

Functioni

Transcriptional activator that functions with GLK1 to promote chloroplast development. Acts as an activator of nuclear photosynthetic genes involved in chlorophyll biosynthesis, light harvesting, and electron transport. Acts in a cell-autonomous manner to coordinate and maintain the photosynthetic apparatus within individual cells. May function in photosynthetic capacity optimization by integrating responses to variable environmental and endogenous cues (PubMed:11828027, PubMed:12220263, PubMed:18643989, PubMed:19376934, PubMed:19383092, PubMed:19726569). Prevents premature senescence (PubMed:23459204).7 Publications

Miscellaneous

Plants overexpressing GLK2 have a delay in flowering under long days.

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
DNA bindingi144 – 203Myb-like GARPPROSITE-ProRule annotationAdd BLAST60

GO - Molecular functioni

  • DNA binding Source: UniProtKB-KW
  • DNA binding transcription factor activity Source: TAIR

GO - Biological processi

  • chloroplast organization Source: TAIR
  • negative regulation of flower development Source: TAIR
  • negative regulation of leaf senescence Source: UniProtKB
  • positive regulation of transcription, DNA-templated Source: TAIR
  • regulation of chlorophyll biosynthetic process Source: TAIR
  • transcription, DNA-templated Source: UniProtKB-KW

Keywordsi

Molecular functionDNA-binding
Biological processTranscription, Transcription regulation

Names & Taxonomyi

Protein namesi
Recommended name:
Transcription activator GLK2
Alternative name(s):
GBF'S PRO-RICH REGION-INTERACTING factor 2
Golden2-like protein 2
Short name:
AtGLK2
Gene namesi
Name:GLK2
Synonyms:GPRI2
Ordered Locus Names:At5g44190
ORF Names:MLN1.11
OrganismiArabidopsis thaliana (Mouse-ear cress)
Taxonomic identifieri3702 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaerosidsmalvidsBrassicalesBrassicaceaeCamelineaeArabidopsis
Proteomesi
  • UP000006548 Componenti: Chromosome 5

Organism-specific databases

AraportiAT5G44190
TAIRilocus:2167639 AT5G44190

Subcellular locationi

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

Keywords - Cellular componenti

Nucleus

Pathology & Biotechi

Disruption phenotypei

Pale green siliques (PubMed:12220263). Pale-green seedlings in double mutants glk1/glk2 (PubMed:23459204).2 Publications

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00004083861 – 386Transcription activator GLK2Add BLAST386

Proteomic databases

PaxDbiQ9FFH0

Expressioni

Tissue specificityi

Expressed in cotyledons and rosette and cauline leaves. Expressed at low levels in roots, shoots, flowers and siliques.1 Publication

Inductioni

By light. Repressed by BZR2.2 Publications

Gene expression databases

ExpressionAtlasiQ9FFH0 baseline and differential
GenevisibleiQ9FFH0 AT

Interactioni

Subunit structurei

Interacts with NAC92.1 Publication

Binary interactionsi

WithEntry#Exp.IntActNotes
NAC92Q9FKA06EBI-6862475,EBI-6862413

Protein-protein interaction databases

BioGridi19692, 2 interactors
IntActiQ9FFH0, 15 interactors
MINTiQ9FFH0
STRINGi3702.AT5G44190.1

Structurei

3D structure databases

ProteinModelPortaliQ9FFH0
SMRiQ9FFH0
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Phylogenomic databases

eggNOGiENOG410IH7K Eukaryota
ENOG4111SK7 LUCA
HOGENOMiHOG000237698
InParanoidiQ9FFH0
OMAiSERDGGM
OrthoDBiEOG09360HCC
PhylomeDBiQ9FFH0

Family and domain databases

InterProiView protein in InterPro
IPR009057 Homeobox-like_sf
IPR017930 Myb_dom
IPR006447 Myb_dom_plants
IPR001005 SANT/Myb
PfamiView protein in Pfam
PF00249 Myb_DNA-binding, 1 hit
SUPFAMiSSF46689 SSF46689, 1 hit
TIGRFAMsiTIGR01557 myb_SHAQKYF, 1 hit
PROSITEiView protein in PROSITE
PS51294 HTH_MYB, 1 hit

Sequencei

Sequence statusi: Complete.

Q9FFH0-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MLTVSPAPVL IGNNSKDTYM AADFADFTTE DLPDFTTVGD FSDDLLDGID
60 70 80 90 100
YYDDLFIGFD GDDVLPDLEI DSEILGEYSG SGRDEEQEME GNTSTASETS
110 120 130 140 150
ERDVGVCKQE GGGGGDGGFR DKTVRRGKRK GKKSKDCLSD ENDIKKKPKV
160 170 180 190 200
DWTPELHRKF VQAVEQLGVD KAVPSRILEI MNVKSLTRHN VASHLQKYRS
210 220 230 240 250
HRKHLLAREA EAASWNLRRH ATVAVPGVGG GGKKPWTAPA LGYPPHVAPM
260 270 280 290 300
HHGHFRPLHV WGHPTWPKHK PNTPASAHRT YPMPAIAAAP ASWPGHPPYW
310 320 330 340 350
HQQPLYPQGY GMASSNHSSI GVPTRQLGPT NPPIDIHPSN ESIDAAIGDV
360 370 380
ISKPWLPLPL GLKPPSVDGV MTELQRQGVS NVPPLP
Length:386
Mass (Da):42,167
Last modified:March 1, 2001 - v1
Checksum:iA61AFE189A98C606
GO

Sequence cautioni

The sequence AAK91403 differs from that shown. Reason: Erroneous termination at position 315. Translated as Ser.Curated

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AB062490 mRNA Translation: BAB78467.1
AY026773 mRNA Translation: AAK16744.1
AY028368 Genomic DNA Translation: AAK20121.1
AB005239 Genomic DNA Translation: BAB10986.1
CP002688 Genomic DNA Translation: AED95072.1
AY050386 mRNA Translation: AAK91403.1 Sequence problems.
AY124819 mRNA Translation: AAM70528.1
RefSeqiNP_199232.1, NM_123786.4
UniGeneiAt.19638

Genome annotation databases

EnsemblPlantsiAT5G44190.1; AT5G44190.1; AT5G44190
GeneIDi834442
GrameneiAT5G44190.1; AT5G44190.1; AT5G44190
KEGGiath:AT5G44190

Similar proteinsi

Entry informationi

Entry nameiGLK2_ARATH
AccessioniPrimary (citable) accession number: Q9FFH0
Secondary accession number(s): Q94A45
Entry historyiIntegrated into UniProtKB/Swiss-Prot: May 3, 2011
Last sequence update: March 1, 2001
Last modified: April 25, 2018
This is version 129 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

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