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Protein

Phosphoserine aminotransferase

Gene

serC

Organism
Buchnera aphidicola subsp. Schizaphis graminum (strain Sg)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Catalyzes the reversible conversion of 3-phosphohydroxypyruvate to phosphoserine and of 3-hydroxy-2-oxo-4-phosphonooxybutanoate to phosphohydroxythreonine.UniRule annotation

Catalytic activityi

O-phospho-L-serine + 2-oxoglutarate = 3-phosphonooxypyruvate + L-glutamate.UniRule annotation
4-phosphonooxy-L-threonine + 2-oxoglutarate = (3R)-3-hydroxy-2-oxo-4-phosphonooxybutanoate + L-glutamate.UniRule annotation

Cofactori

pyridoxal 5'-phosphateUniRule annotationNote: Binds 1 pyridoxal phosphate per subunit.UniRule annotation

Pathway: L-serine biosynthesis

This protein is involved in step 2 of the subpathway that synthesizes L-serine from 3-phospho-D-glycerate.UniRule annotation
Proteins known to be involved in the 3 steps of the subpathway in this organism are:
  1. no protein annotated in this organism
  2. Phosphoserine aminotransferase (serC)
  3. no protein annotated in this organism
This subpathway is part of the pathway L-serine biosynthesis, which is itself part of Amino-acid biosynthesis.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes L-serine from 3-phospho-D-glycerate, the pathway L-serine biosynthesis and in Amino-acid biosynthesis.

Pathway: pyridoxine 5'-phosphate biosynthesis

This protein is involved in step 3 of the subpathway that synthesizes pyridoxine 5'-phosphate from D-erythrose 4-phosphate.UniRule annotation
Proteins known to be involved in the 5 steps of the subpathway in this organism are:
  1. no protein annotated in this organism
  2. no protein annotated in this organism
  3. Phosphoserine aminotransferase (serC)
  4. no protein annotated in this organism
  5. no protein annotated in this organism
This subpathway is part of the pathway pyridoxine 5'-phosphate biosynthesis, which is itself part of Cofactor biosynthesis.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes pyridoxine 5'-phosphate from D-erythrose 4-phosphate, the pathway pyridoxine 5'-phosphate biosynthesis and in Cofactor biosynthesis.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Binding sitei42 – 421L-glutamateUniRule annotation
Binding sitei102 – 1021Pyridoxal phosphateUniRule annotation
Binding sitei153 – 1531Pyridoxal phosphateUniRule annotation
Binding sitei173 – 1731Pyridoxal phosphateUniRule annotation
Binding sitei196 – 1961Pyridoxal phosphateUniRule annotation

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Aminotransferase, Transferase

Keywords - Biological processi

Amino-acid biosynthesis, Pyridoxine biosynthesis, Serine biosynthesis

Keywords - Ligandi

Pyridoxal phosphate

Enzyme and pathway databases

BioCyciBAPH198804:GHMG-316-MONOMER.
UniPathwayiUPA00135; UER00197.
UPA00244; UER00311.

Names & Taxonomyi

Protein namesi
Recommended name:
Phosphoserine aminotransferaseUniRule annotation (EC:2.6.1.52UniRule annotation)
Alternative name(s):
Phosphohydroxythreonine aminotransferaseUniRule annotation
Short name:
PSATUniRule annotation
Gene namesi
Name:serCUniRule annotation
Ordered Locus Names:BUsg_302
OrganismiBuchnera aphidicola subsp. Schizaphis graminum (strain Sg)
Taxonomic identifieri198804 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacterialesEnterobacteriaceaeBuchnera
ProteomesiUP000000416 Componenti: Chromosome

Subcellular locationi

  • Cytoplasm UniRule annotation

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 361361Phosphoserine aminotransferasePRO_0000150159Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Modified residuei197 – 1971N6-(pyridoxal phosphate)lysineUniRule annotation

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Protein-protein interaction databases

STRINGi198804.BUsg302.

Structurei

3D structure databases

ProteinModelPortaliP81435.
SMRiP81435. Positions 4-361.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni76 – 772Pyridoxal phosphate bindingUniRule annotation
Regioni238 – 2392Pyridoxal phosphate bindingUniRule annotation

Sequence similaritiesi

Belongs to the class-V pyridoxal-phosphate-dependent aminotransferase family. SerC subfamily.UniRule annotation

Phylogenomic databases

eggNOGiCOG1932.
KOiK00831.
OMAiNNTIFGT.
OrthoDBiEOG60CWP3.

Family and domain databases

Gene3Di3.40.640.10. 1 hit.
3.90.1150.10. 1 hit.
HAMAPiMF_00160. SerC_aminotrans_5.
InterProiIPR000192. Aminotrans_V_dom.
IPR020578. Aminotrans_V_PyrdxlP_BS.
IPR022278. Pser_aminoTfrase.
IPR015424. PyrdxlP-dep_Trfase.
IPR015421. PyrdxlP-dep_Trfase_major_sub1.
IPR015422. PyrdxlP-dep_Trfase_major_sub2.
[Graphical view]
PfamiPF00266. Aminotran_5. 1 hit.
[Graphical view]
PIRSFiPIRSF000525. SerC. 1 hit.
SUPFAMiSSF53383. SSF53383. 1 hit.
TIGRFAMsiTIGR01364. serC_1. 1 hit.
PROSITEiPS00595. AA_TRANSFER_CLASS_5. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

P81435-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MNLIYNFSAG PAMIPKDVLY QAKKELQNWN QIGCSIMEIS HRSKEFIQVA
60 70 80 90 100
LEAEQDLRDL LNISNSYEIL FCQGGARGQF AAVPMNLLGN FKETDYINSG
110 120 130 140 150
YWSNCALIEA KKYCIPKNIS VRQKKNGKSF LLKPSQWNIS DNSAYIHYCP
160 170 180 190 200
NETIDGMSIY EEPNFKNKII VGDFSSFILS RRINIENYGL IYAGAQKNIG
210 220 230 240 250
PSGITIILIR KDLIGYASKI SPSIFNYYII SKYNSMFNTP PTFSWYLSGL
260 270 280 290 300
VFKWLKKQGG IKKIEQLNQK KSNLLYQIID NSNFYINDID KRNRSQMNVV
310 320 330 340 350
FHLYNSKLDN LFLKEAKNAG LNALKGHNVI GGMRASIYNA MPLEGVQSLA
360
KFMLYFEKKY G
Length:361
Mass (Da):41,261
Last modified:August 1, 1998 - v1
Checksum:iF30153652525047D
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
L43549 Genomic DNA. Translation: AAC05435.1.
AE013218 Genomic DNA. Translation: AAM67856.1.
RefSeqiNP_660645.1. NC_004061.1.
WP_011053823.1. NC_004061.1.

Genome annotation databases

EnsemblBacteriaiAAM67856; AAM67856; BUsg_302.
KEGGibas:BUsg302.
PATRICi21247411. VBIBucAph100086_0315.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
L43549 Genomic DNA. Translation: AAC05435.1.
AE013218 Genomic DNA. Translation: AAM67856.1.
RefSeqiNP_660645.1. NC_004061.1.
WP_011053823.1. NC_004061.1.

3D structure databases

ProteinModelPortaliP81435.
SMRiP81435. Positions 4-361.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi198804.BUsg302.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiAAM67856; AAM67856; BUsg_302.
KEGGibas:BUsg302.
PATRICi21247411. VBIBucAph100086_0315.

Phylogenomic databases

eggNOGiCOG1932.
KOiK00831.
OMAiNNTIFGT.
OrthoDBiEOG60CWP3.

Enzyme and pathway databases

UniPathwayiUPA00135; UER00197.
UPA00244; UER00311.
BioCyciBAPH198804:GHMG-316-MONOMER.

Family and domain databases

Gene3Di3.40.640.10. 1 hit.
3.90.1150.10. 1 hit.
HAMAPiMF_00160. SerC_aminotrans_5.
InterProiIPR000192. Aminotrans_V_dom.
IPR020578. Aminotrans_V_PyrdxlP_BS.
IPR022278. Pser_aminoTfrase.
IPR015424. PyrdxlP-dep_Trfase.
IPR015421. PyrdxlP-dep_Trfase_major_sub1.
IPR015422. PyrdxlP-dep_Trfase_major_sub2.
[Graphical view]
PfamiPF00266. Aminotran_5. 1 hit.
[Graphical view]
PIRSFiPIRSF000525. SerC. 1 hit.
SUPFAMiSSF53383. SSF53383. 1 hit.
TIGRFAMsiTIGR01364. serC_1. 1 hit.
PROSITEiPS00595. AA_TRANSFER_CLASS_5. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

« Hide 'large scale' publications
  1. "Nucleotide sequence of a DNA fragment from Buchnera aphidicola (Aphid endosymbiont) containing the genes aspS-trxB-serS-serC-aroA-rpsA-himD-tpiA."
    Thao M.L., Baumann P.
    Curr. Microbiol. 35:68-69(1997)
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
  2. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: Sg.

Entry informationi

Entry nameiSERC_BUCAP
AccessioniPrimary (citable) accession number: P81435
Entry historyi
Integrated into UniProtKB/Swiss-Prot: December 15, 1998
Last sequence update: August 1, 1998
Last modified: April 29, 2015
This is version 107 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome

Documents

  1. Buchnera aphidicola (subsp. Schizaphis graminum)
    Buchnera aphidicola (subsp. Schizaphis graminum): entries and gene names
  2. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  3. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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 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.