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
hydrolase tatdDD793_00290Not AvailableNegative63232 - 6399629195.8
riboflavin synthaseDD793_00295Not AvailablePositive64071 - 6469122798.4
flhb-like flagellar biosynthesis proteinDD793_00300Not AvailablePositive64692 - 649649954.13
methionine abc transporter atp-binding proteinDD793_00305Not AvailablePositive64986 - 6596936629.9
abc transporter permeaseDD793_00310Not AvailablePositive65971 - 6661823380.8
hypothetical proteinDD793_00315Not AvailableNegative66805 - 6723616325.9
pap2 family proteinDD793_00320Not AvailableNegative67246 - 6790824606.2
methicillin resistance proteinDD793_00325Not AvailableNegative67842 - 6884937621.6
pyridoxine 5'-phosphate synthaseDD793_00330Not AvailablePositive68985 - 6977329777.4
4-hydroxythreonine-4-phosphate dehydrogenaseDD793_00335Not AvailablePositive69775 - 7069833811.8

Displaying genes 61 – 70 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