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Protein

Bifunctional purine biosynthesis protein PurH

Gene

purH

Organism
Escherichia coli (strain K12)
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

Functioni

Catalytic activityi

10-formyltetrahydrofolate + 5-amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxamide = tetrahydrofolate + 5-formamido-1-(5-phospho-D-ribosyl)imidazole-4-carboxamide.
IMP + H2O = 5-formamido-1-(5-phospho-D-ribosyl)imidazole-4-carboxamide.

Pathwayi: IMP biosynthesis via de novo pathway

This protein is involved in step 1 of the subpathway that synthesizes 5-formamido-1-(5-phospho-D-ribosyl)imidazole-4-carboxamide from 5-amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxamide (10-formyl THF route).
Proteins known to be involved in this subpathway in this organism are:
  1. Bifunctional purine biosynthesis protein PurH (purH)
This subpathway is part of the pathway IMP biosynthesis via de novo pathway, which is itself part of Purine metabolism.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes 5-formamido-1-(5-phospho-D-ribosyl)imidazole-4-carboxamide from 5-amino-1-(5-phospho-D-ribosyl)imidazole-4-carboxamide (10-formyl THF route), the pathway IMP biosynthesis via de novo pathway and in Purine metabolism.

Pathwayi: IMP biosynthesis via de novo pathway

This protein is involved in step 1 of the subpathway that synthesizes IMP from 5-formamido-1-(5-phospho-D-ribosyl)imidazole-4-carboxamide.
Proteins known to be involved in this subpathway in this organism are:
  1. Bifunctional purine biosynthesis protein PurH (purH)
This subpathway is part of the pathway IMP biosynthesis via de novo pathway, which is itself part of Purine metabolism.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes IMP from 5-formamido-1-(5-phospho-D-ribosyl)imidazole-4-carboxamide, the pathway IMP biosynthesis via de novo pathway and in Purine metabolism.

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionHydrolase, Multifunctional enzyme, Transferase
Biological processPurine biosynthesis

Enzyme and pathway databases

BioCyciEcoCyc:AICARTRANSIMPCYCLO-CPLX
MetaCyc:AICARTRANSIMPCYCLO-CPLX
UniPathwayiUPA00074; UER00133
UPA00074; UER00135

Names & Taxonomyi

Protein namesi
Recommended name:
Bifunctional purine biosynthesis protein PurH
Including the following 2 domains:
Phosphoribosylaminoimidazolecarboxamide formyltransferase (EC:2.1.2.3)
Alternative name(s):
AICAR transformylase
IMP cyclohydrolase (EC:3.5.4.10)
Alternative name(s):
ATIC
IMP synthase
Inosinicase
Gene namesi
Name:purH
Ordered Locus Names:b4006, JW3970
OrganismiEscherichia coli (strain K12)
Taxonomic identifieri83333 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesEnterobacteriaceaeEscherichia
Proteomesi
  • UP000000318 Componenti: Chromosome
  • UP000000625 Componenti: Chromosome

Organism-specific databases

EcoGeneiEG10795 purH

Subcellular locationi

GO - Cellular componenti

  • cytosol Source: EcoCyc

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001920911 – 529Bifunctional purine biosynthesis protein PurHAdd BLAST529

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei287N6-acetyllysine1 Publication1

Keywords - PTMi

Acetylation

Proteomic databases

PaxDbiP15639
PRIDEiP15639

2D gel databases

SWISS-2DPAGEiP15639

PTM databases

iPTMnetiP15639

Interactioni

Protein-protein interaction databases

BioGridi4262461, 76 interactors
IntActiP15639, 7 interactors
STRINGi316385.ECDH10B_4195

Structurei

3D structure databases

ProteinModelPortaliP15639
SMRiP15639
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini1 – 148MGS-likePROSITE-ProRule annotationAdd BLAST148

Domaini

The IMP cyclohydrolase activity resides in the N-terminal region.By similarity

Sequence similaritiesi

Belongs to the PurH family.Curated

Phylogenomic databases

eggNOGiENOG4105DC1 Bacteria
COG0138 LUCA
HOGENOMiHOG000230372
InParanoidiP15639
KOiK00602
OMAiDLLFAWK
PhylomeDBiP15639

Family and domain databases

Gene3Di3.40.140.20, 2 hits
3.40.50.1380, 1 hit
HAMAPiMF_00139 PurH, 1 hit
InterProiView protein in InterPro
IPR024051 AICAR_Tfase_dup_dom_sf
IPR016193 Cytidine_deaminase-like
IPR011607 MGS-like_dom
IPR036914 MGS-like_dom_sf
IPR002695 PurH-like
PANTHERiPTHR11692 PTHR11692, 1 hit
PfamiView protein in Pfam
PF01808 AICARFT_IMPCHas, 1 hit
PF02142 MGS, 1 hit
PIRSFiPIRSF000414 AICARFT_IMPCHas, 1 hit
SMARTiView protein in SMART
SM00798 AICARFT_IMPCHas, 1 hit
SM00851 MGS, 1 hit
SUPFAMiSSF52335 SSF52335, 1 hit
SSF53927 SSF53927, 1 hit
TIGRFAMsiTIGR00355 purH, 1 hit
PROSITEiView protein in PROSITE
PS51855 MGS, 1 hit

Sequencei

Sequence statusi: Complete.

P15639-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MQQRRPVRRA LLSVSDKAGI VEFAQALSAR GVELLSTGGT ARLLAEKGLP
60 70 80 90 100
VTEVSDYTGF PEMMDGRVKT LHPKVHGGIL GRRGQDDAIM EEHQIQPIDM
110 120 130 140 150
VVVNLYPFAQ TVAREGCSLE DAVENIDIGG PTMVRSAAKN HKDVAIVVKS
160 170 180 190 200
SDYDAIIKEM DDNEGSLTLA TRFDLAIKAF EHTAAYDSMI ANYFGSMVPA
210 220 230 240 250
YHGESKEAAG RFPRTLNLNF IKKLDMRYGE NSHQQAAFYI EENVKEASVA
260 270 280 290 300
TATQVQGKAL SYNNIADTDA ALECVKEFAE PACVIVKHAN PCGVAIGNSI
310 320 330 340 350
LDAYDRAYKT DPTSAFGGII AFNRELDAET AQAIISRQFV EVIIAPSASE
360 370 380 390 400
EALKITAAKQ NVRVLTCGQW GERVPGLDFK RVNGGLLVQD RDLGMVGAEE
410 420 430 440 450
LRVVTKRQPS EQELRDALFC WKVAKFVKSN AIVYAKNNMT IGIGAGQMSR
460 470 480 490 500
VYSAKIAGIK AADEGLEVKG SSMASDAFFP FRDGIDAAAA AGVTCVIQPG
510 520
GSIRDDEVIA AADEHGIAML FTDMRHFRH
Length:529
Mass (Da):57,329
Last modified:April 1, 1990 - v1
Checksum:iDC034ED01915DA68
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
J05126 Genomic DNA Translation: AAA24454.1
X51950 Genomic DNA Translation: CAA36212.1
U00006 Genomic DNA Translation: AAC43104.1
U00096 Genomic DNA Translation: AAC76980.1
AP009048 Genomic DNA Translation: BAE77313.1
PIRiB34193 DTECPH
RefSeqiNP_418434.1, NC_000913.3
WP_001187559.1, NZ_LN832404.1

Genome annotation databases

EnsemblBacteriaiAAC76980; AAC76980; b4006
BAE77313; BAE77313; BAE77313
GeneIDi948503
KEGGiecj:JW3970
eco:b4006
PATRICifig|1411691.4.peg.2704

Entry informationi

Entry nameiPUR9_ECOLI
AccessioniPrimary (citable) accession number: P15639
Secondary accession number(s): Q2M8U3
Entry historyiIntegrated into UniProtKB/Swiss-Prot: April 1, 1990
Last sequence update: April 1, 1990
Last modified: March 28, 2018
This is version 145 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. Escherichia coli
    Escherichia coli (strain K12): entries and cross-references to EcoGene
  2. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  3. SIMILARITY comments
    Index of protein domains and families

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