Helicobacter pylori strain B344

Gram-negativeSpirillaNon-motileMicroaerophilic

Kingdom

Pseudomonadati

Phylum

Campylobacterota

Class

Epsilonproteobacteria

Order

Campylobacterales

Family

Helicobacteraceae

Genus

Helicobacter

Description

Helicobacter pylori strain B344 is a microaerophilic, Gram-negative bacterium characterized by its spirilla shape and single-cell arrangement. It possesses flagella, which facilitates its mobility, although it does not exhibit active movement. This strain is mesophilic, with an optimal growth temperature of 37°C. Helicobacter pylori B344 is primarily host-associated, thriving in various hosts, including Homo sapiens (humans), Gallus gallus (chickens), other Aves (birds), Primates, Mammalia, and Rodentia. The strain has a free-living biotic relationship and is known to possess one replicon and two membranes. The health effects associated with H. pylori B344 are significant, as it is linked to a range of gastrointestinal diseases. It is known to cause chronic gastric inflammation, peptic ulcer disease, and is associated with various forms of gastric cancer, including gastric adenocarcinoma and mucosa-associated lymphoid tissue (MALT) lymphoma. Other health impacts include GERD, gastritis, and functional dyspepsia, indicating its role in both symptomatic and asymptomatic conditions. The presence of H. pylori in its hosts has profound implications for human health, particularly regarding the development of gastric ulcers and cancer. The bacterium's ability to induce chronic inflammation in the gastric mucosa is a critical factor in its pathogenicity, highlighting the importance of understanding its ecological interactions within the gastrointestinal tract.

Taxonomy

KingdomPseudomonadati
PhylumCampylobacterota
ClassEpsilonproteobacteria
OrderCampylobacterales
FamilyHelicobacteraceae
GenusHelicobacter
SpeciesHelicobacter pylori
Strainstrain B344

Profile

Physiology
Gram staining propertiesNegative
ShapeSpirilla
MobilityNo
Flagellar presenceYes
Number of membranes2
Image of Helicobacter pylori strain B344
Image source: Wikipedia/Wikimedia
Ecology, Host, and Life Cycle
Oxygen requirementsMicroaerophilic
Optimal temperature37
Temperature rangeMesophilic
HabitatHostAssociated
Biotic relationshipFree living
Host(s)Homo sapiens, Gallus gallus, Aves
Cell arrangementSingles
SporulationNot Available
Energy sourceNot Available
PathogenicityHuman

Genome Summary

Helicobacter pylori strain B344 scaffold_4, whole genome shotgun

Gene Summary

Adenine Count

467047 bp

Thymine Count

475523 bp

Guanine Count

300961 bp

Cytosine Count

304811 bp

Genome Length

1548362 bp

Protein-coding Genes

1409 genes

Non-Coding Genes

44 genes

# of Chromosomes/Plasmids

1

Genes

NameLocus TagUniProt IDStrand OrientationGene Start/EndProtein Molecular Weight
Trna-pheNot AvailableNot AvailablePositive1529159 - 1529234Not Available
competence proteinDD793_07645Not AvailableNegative1529237 - 153067654720.3
chromosomal replication initiator protein dnaaDD793_07650Not AvailableNegative1530905 - 153227251458.9
purine-nucleoside phosphorylaseDD793_07655Not AvailablePositive1532425 - 153296719994.3
duf2443 domain-containing proteinDD793_07660Not AvailablePositive1533012 - 15332519099.29
glutamine--fructose-6-phosphate transaminase (isomerizing)DD793_07665Not AvailablePositive1533252 - 153504567104.8
thymidylate synthase (fad)DD793_07670Not AvailablePositive1535069 - 153569523994.7
cagy like proteinDD793_07675Not AvailableNegative1535947 - 153621910442.6
molybdopterin-guanine dinucleotide biosynthesis protein mobcDD793_07680Not AvailableNegative1536329 - 15365929937.16
hypothetical proteinDD793_07690Not AvailableNegative1537065 - 153931182790.2

Displaying genes 1431 – 1440 of 1453 in total

Pathways

0 pathways

No pathways found

No metabolic pathways have been associated with this bacterium yet.

Metabolites

0 records
Metabolite IDMetabolite nameStructureCAS number
No metabolites foundTry different search terms or mass values.

Displaying 0 metabolites

Health Effects

Health ConditionRelationReference
Chronic gastric inflammationCausesPMC10226649
Gastric cancerCausesPMC10226649
Gastric ulcersCausesPMC10420633
Stomach carcinomaCausesPMC10420633
UlcersCausesPMC10420633
AdenocarcinomaCausesPMC10420633
Mucosa-associated lymphoid tissue lymphomaCausesPMC10420633
GerdCausesPMC10712878
GastritisCausesPMC10712878
Gastric cancerCausesPMC10732068

Displaying health effects 1 – 10 of 94 in total