※ Protein Information
Tag Content
UniProt Accession
Genbank Protein ID
Genbank Nucleotide ID
Protein Name
 Nitrogen regulatory protein P-II
Protein Synonyms/Alias
 
Gene Name
 glnB
Gene Synonyms/Alias
 Synpcc7942_0321
Created Date
 3-June-2014
Organism
 Synechococcus elongatus (strain PCC 7942) (Anacystis nidulans R2)
NCBI Taxa ID
 1140
Phosphorylation
Position
Peptide
Code
Type
References
49 QTERYRGSEYTVEFL S LTP [1],UniProt
Reference
 [1]Phosphorylation of the PII protein (glnB gene product) in the cyanobacterium Synechococcus sp. strain PCC 7942: analysis of in vitro kinase activity.
 Forchhammer K,Tandeau de Marsac N
 J. Bacteriol. 1995, Oct;177(20):5812-7. [PMID:7592328]
Functional Description From UniProt
 FUNCTION: P-II indirectly controls the transcription of the GS gene (glnA). P-II prevents NR-II-catalyzed conversion of NR-I to NR-I-phosphate, the transcriptional activator of glnA. When P-II is phosphorylated, these events are reversed. In nitrogen-limiting conditions, when the ratio of Gln to 2-ketoglutarate decreases, P- II is phosphorylated which allows the deadenylation of glutamine synthetase (GS), thus activating the enzyme
Sequence Annotation From UniProt
 MOD_RES 49 49 Phosphoserine
 MOD_RES 51 51 O-UMP-tyrosine (By similarity)
Key Word From UniProt
 3D-structure; Completeproteome; Nucleotide-binding; Phosphoprotein; Transcription; Transcriptionregulation
Protein Sequence
 MKKIEAIIRP FKLDEVKIAL VNAGIVGMTV SEVRGFGRQK GQTERYRGSE YTVEFLQKLK 60
 LEIVVEDAQV DTVIDKIVAA ARTGEIGDGK IFVSPVDQTI RIRTGEKNAD AI 112
  GO:0030234   F:enzyme regulator activity IEA:InterPro
  GO:0042802   F:identical protein binding IPI:IntAct
  GO:0000166   F:nucleotide binding IEA:UniProtKB-KW
  GO:0006808   P:regulation of nitrogen utilization IEA:InterPro
  GO:0006355   P:regulation of transcription, DNA-templated IEA:UniProtKB-KW
  GO:0006351   P:transcription, DNA-templated IEA:UniProtKB-KW
  IPR002187   N-reg_PII.
  IPR011322   N-reg_PII-like_a/b.
  IPR015867   N-reg_PII/ATP_PRibTrfase_C.
  IPR017918   N-reg_PII_CS.
  IPR002332   N-reg_PII_urydylation_site.
  PF00543   P-II.
  SM00938   P-II.
  PS00638   PII_GLNB_CTER.
  PS51343   PII_GLNB_DOM.
  PS00496   PII_GLNB_UMP.
  PR00340   PIIGLNB.