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Protein

Polyamine aminopropyltransferase

Gene

speE

Organism
Escherichia coli O157:H7 (strain EC4115 / EHEC)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Catalyzes the irreversible transfer of a propylamine group from the amino donor S-adenosylmethioninamine (decarboxy-AdoMet) to putrescine (1,4-diaminobutane) to yield spermidine.UniRule annotation

Catalytic activityi

S-adenosyl 3-(methylthio)propylamine + putrescine = 5'-S-methyl-5'-thioadenosine + spermidine.UniRule annotation

Pathwayi: spermidine biosynthesis

This protein is involved in step 1 of the subpathway that synthesizes spermidine from putrescine.UniRule annotation
Proteins known to be involved in this subpathway in this organism are:
  1. Polyamine aminopropyltransferase (speE)
This subpathway is part of the pathway spermidine biosynthesis, which is itself part of Amine and polyamine biosynthesis.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes spermidine from putrescine, the pathway spermidine biosynthesis and in Amine and polyamine biosynthesis.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei9PolyamineUniRule annotation1
Binding sitei33S-adenosylmethioninamineUniRule annotation1
Binding sitei64PolyamineUniRule annotation1
Binding sitei88PolyamineUniRule annotation1
Binding sitei108S-adenosylmethioninamineUniRule annotation1
Active sitei158Proton acceptorUniRule annotation1
Binding sitei165S-adenosylmethioninamine; via carbonyl oxygenUniRule annotation1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionTransferase
Biological processPolyamine biosynthesis, Spermidine biosynthesis

Enzyme and pathway databases

UniPathwayiUPA00248; UER00314.

Names & Taxonomyi

Protein namesi
Recommended name:
Polyamine aminopropyltransferaseUniRule annotation
Alternative name(s):
Putrescine aminopropyltransferaseUniRule annotation
Short name:
PAPTUniRule annotation
Spermidine synthaseUniRule annotation (EC:2.5.1.16UniRule annotation)
Short name:
SPDSUniRule annotation
Short name:
SPDSYUniRule annotation
Gene namesi
Name:speEUniRule annotation
Ordered Locus Names:ECH74115_0128
OrganismiEscherichia coli O157:H7 (strain EC4115 / EHEC)
Taxonomic identifieri444450 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesEnterobacteriaceaeEscherichia

Subcellular locationi

  • Cytoplasm UniRule annotation

GO - Cellular componenti

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_10000992801 – 288Polyamine aminopropyltransferaseAdd BLAST288

Interactioni

Subunit structurei

Homodimer or homotetramer.UniRule annotation

Structurei

3D structure databases

ProteinModelPortaliB5YZF6.
SMRiB5YZF6.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini9 – 238PABSUniRule annotationAdd BLAST230

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni53 – 54Polyamine bindingUniRule annotation2
Regioni140 – 141S-adenosylmethioninamine bindingUniRule annotation2
Regioni159 – 161Polyamine bindingUniRule annotation3

Sequence similaritiesi

Belongs to the spermidine/spermine synthase family.UniRule annotation

Phylogenomic databases

HOGENOMiHOG000256146.
KOiK00797.
OMAiYPCGHIG.

Family and domain databases

Gene3Di2.30.140.10. 1 hit.
HAMAPiMF_00198. Spermidine_synth. 1 hit.
InterProiView protein in InterPro
IPR030374. PABS.
IPR030373. PABS_CS.
IPR029063. SAM-dependent_MTases.
IPR001045. Spermi_synthase.
IPR035246. Spermidine_synt_N.
IPR037163. Spermidine_synt_N_sf.
PfamiView protein in Pfam
PF17284. Spermine_synt_N. 1 hit.
SUPFAMiSSF53335. SSF53335. 1 hit.
TIGRFAMsiTIGR00417. speE. 1 hit.
PROSITEiView protein in PROSITE
PS01330. PABS_1. 1 hit.
PS51006. PABS_2. 1 hit.

Sequencei

Sequence statusi: Complete.

B5YZF6-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MAEKKQWHET LHDQFGQYFA VDNVLYHEKT DHQDLIIFEN AAFGRVMALD
60 70 80 90 100
GVVQTTERDE FIYHEMMTHV PLLAHGHAKH VLIIGGGDGA MLREVTRHKN
110 120 130 140 150
VESITMVEID AGVVSFCRQY LPNHNAGSYD DPRFKLVIDD GVNFVNQTSQ
160 170 180 190 200
TFDVIISDCT DPIGPGESLF TSAFYEGCKR CLNPGGIFVA QNGVCFLQQE
210 220 230 240 250
EAIDSHRKLS HYFSDVGFYQ AAIPTYYGGI MTFAWATDND ALRHLSTEII
260 270 280
QARFLASGLK CRYYNPAVHT AAFALPQYLQ DALASQPS
Length:288
Mass (Da):32,307
Last modified:November 25, 2008 - v1
Checksum:i31AE026FE0754E9F
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP001164 Genomic DNA. Translation: ACI34654.1.
RefSeqiWP_000818414.1. NC_011353.1.

Genome annotation databases

EnsemblBacteriaiACI34654; ACI34654; ECH74115_0128.
KEGGiecf:ECH74115_0128.

Similar proteinsi

Entry informationi

Entry nameiSPEE_ECO5E
AccessioniPrimary (citable) accession number: B5YZF6
Entry historyiIntegrated into UniProtKB/Swiss-Prot: March 24, 2009
Last sequence update: November 25, 2008
Last modified: October 25, 2017
This is version 65 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families