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
exonucleaseDD793_02210Not AvailableNegative439772 - 44210590980.0
transketolaseDD793_02215Not AvailableNegative442102 - 44402770643.9
bifunctional riboflavin kinase/fad synthetaseDD793_02220Not AvailableNegative444074 - 44491632267.8
tlya family rrna (cytidine-2'-o)-methyltransferaseDD793_02225Not AvailableNegative444882 - 44558926506.7
hypothetical proteinDD793_02230Not AvailableNegative445589 - 44610419678.3
aspartate carbamoyltransferaseDD793_02235Not AvailablePositive446171 - 44709434122.7
outer membrane beta-barrel protein hofbDD793_02240Not AvailablePositive447347 - 44878653050.8
abc transporter permeaseDD793_02245Not AvailablePositive448877 - 45053261904.2
neuraminyllactose-binding hemagglutinin family proteinDD793_02250Not AvailablePositive450526 - 45114923625.7
restriction endonucleaseDD793_02255Not AvailablePositive451153 - 45173121743.8

Displaying genes 421 – 430 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