Helicobacter pylori B8

Gram-negativeSpirillaNon-motileMicroaerophilic

Kingdom

Pseudomonadati

Phylum

Campylobacterota

Class

Epsilonproteobacteria

Order

Campylobacterales

Family

Helicobacteraceae

Genus

Helicobacter

Description

Helicobacter pylori B8 is a Gram-negative, microaerophilic bacterium characterized by its spirilla shape and single-cell arrangement. This organism is notable for its pathogenicity, as it has been implicated in various gastrointestinal diseases, including peptic ulcers and gastric cancer. H. pylori B8 is nonsporulating and possesses two membranes, a trait typical of Gram-negative bacteria. The bacterium is free-living, although it is primarily associated with the host's stomach environment. Its optimal growth temperature is 37°C, fitting within the mesophilic temperature range. H. pylori B8 has a unique feature of possessing flagella, which aids in its motility, although it is classified as non-motile in terms of active movement. Genetically, H. pylori B8 contains two replicons, which are essential for its replication and function. The organism's adaptability to microaerophilic conditions allows it to thrive in the low-oxygen environments found in the gastric mucosa of hosts. Understanding the traits of H. pylori B8 enhances our knowledge of its ecological niche and pathogenic behavior. Its ability to live in a host-associated habitat while maintaining free-living characteristics may contribute to its success as a pathogen, allowing it to survive and proliferate in the complex gastric ecosystem. The presence of two replicons could also provide insights into its genetic diversity and adaptability, which are significant factors in its pathogenic potential.

Taxonomy

KingdomPseudomonadati
PhylumCampylobacterota
ClassEpsilonproteobacteria
OrderCampylobacterales
FamilyHelicobacteraceae
GenusHelicobacter
SpeciesHelicobacter pylori
StrainB8

Profile

Physiology
Gram staining propertiesNegative
ShapeSpirilla
MobilityNo
Flagellar presenceYes
Number of membranes2
Image of Helicobacter pylori B8
Image source: Wikipedia/Wikimedia
Ecology, Host, and Life Cycle
Oxygen requirementsMicroaerophilic
Optimal temperature37
Temperature rangeMesophilic
HabitatHostAssociated
Biotic relationshipFree living
Host(s)Not Available
Cell arrangementSingles
SporulationNonsporulating
Energy sourceNot Available
PathogenicityYes

Genome Summary

Helicobacter pylori B8


Gene Summary

Adenine Count

515842 bp

Thymine Count

508729 bp

Guanine Count

328018 bp

Cytosine Count

321408 bp

Genome Length

1673997 bp

Protein-coding Genes

1558 genes

Non-Coding Genes

45 genes

# of Chromosomes/Plasmids

2

Genes

NameLocus TagUniProt IDStrand OrientationGene Start/EndProtein Molecular Weight
chromosomal replication initiator protein dnaaHPB8_RS00010Not AvailablePositive154 - 152751687.1
hypothetical proteinHPB8_RS00020Not AvailablePositive1756 - 319554760.4
Trna-pheNot AvailableNot AvailablePositive3198 - 3273Not Available
exodeoxyribonuclease iiiHPB8_RS00030Not AvailablePositive3376 - 412829223.8
outer membrane proteinHPB8_RS00035Not AvailableNegative4125 - 476024826.9
hypothetical proteinHPB8_RS00040Not AvailableNegative4764 - 511113289.3
atp-dependent dna helicase recgHPB8_RS00045Not AvailablePositive5193 - 706471412.1
site-specific dna-methyltransferaseHPB8_RS00050Not AvailablePositive7107 - 856755180.5
site-specific dna-methyltransferaseHPB8_RS09070Not AvailablePositive8572 - 915922092.7
type iii restriction-modification system endonucleaseHPB8_RS00060Not AvailablePositive9162 - 12071111668.0

Displaying genes 1 – 10 of 1608 in total

Metabolites

1602 records
Metabolite IDMetabolite nameStructureCAS number
BASm00002603alpha,7alpha-dihydroxy-12-oxo-5beta-cholanateC24H37O5Chemical structure of 3alpha,7alpha-dihydroxy-12-oxo-5beta-cholanateNot available
Average405.556Da
Monoisotopic405.264647871Da
BASm00004283-oxoadipateC6H6O5Chemical structure of 3-oxoadipateNot available
Average158.11Da
Monoisotopic158.022620453Da
BASm0000592(S)-1-phenylethanolC8H10OChemical structure of (S)-1-phenylethanolNot available
Average122.1644Da
Monoisotopic122.0731649Da
BASm0000989GlycerolC3H8O3Chemical structure of Glycerol56-81-5
Average92.0938Da
Monoisotopic92.04734412Da
BASm0001225dodecanoateC12H23O2Chemical structure of dodecanoateNot available
Average199.3098Da
Monoisotopic199.169805Da
BASm0001661Cu(2+)CuChemical structure of Cu(2+)7440-50-8
Average63.546Da
Monoisotopic62.929601079Da
BASm00016962-heptyl-3-hydroxy-4(1H)-quinoloneC16H21NO2Chemical structure of 2-heptyl-3-hydroxy-4(1H)-quinoloneNot available
Average259.349Da
Monoisotopic259.15722892Da
BASm0001808corynebactinC39H42N6O18Chemical structure of corynebactinNot available
Average882.789Da
Monoisotopic882.2555585Da
BASm0001865diphosphateHO7P2Chemical structure of diphosphateNot available
Average174.95Da
Monoisotopic174.9213971Da
BASm00021577-cyano-7-deazaguanineC7H5N5OChemical structure of 7-cyano-7-deazaguanineNot available
Average175.1475Da
Monoisotopic175.0494098Da

Displaying 1–10 of 1602 metabolites

Health Effects

No health effects information available for this bacterium.