NCBI
NCBI Taxonomy taxdump · 2026-10-23taxid: 210
Bacteria > Campylobacterota > Epsilonproteobacteria > Campylobacterales > Helicobacteraceae > Helicobacter > Helicobacter pylori
Helicobacter pylori
Species in genus Helicobacter, family Helicobacteraceae (order Campylobacterales). (from NCBI Taxonomy lineage)
Warning: This taxon splits 1→many across databases. Read the panels carefully.
Names over time
Loading the names
Cross-database view
GTDB
- Helicobacter pylori_C
- Helicobacter pylori
- Helicobacter pylori_BU
- +38 more — see all names below
id: s__Helicobacter pylori_C / s__Helicobacter pylori / s__Helicobacter pylori_BU · GTDB R232
At its weakest, linked by GTDB's own NCBI species id rather than the genome's raw one.
d__Bacteria;p__Campylobacterota;c__Campylobacteria;o__Campylobacterales;f__Helicobacteraceae;g__Helicobacter;s__Helicobacter pylori_C
Warning: GTDB R232 places this taxon's 2764 genomes in 6 species.
Name differs between releases: Name differs across GTDB releases.
SILVA
Helicobacter pylori
id: AF535194 · SILVA 138.2
Linked by name — the SILVA table we ingest carries no NCBI taxid, so the binomial is the only join.
Bacteria;Campylobacterota;Campylobacteria;Campylobacterales;Helicobacteraceae;Helicobacter;
Greengenes2
Helicobacter_E pylori_CN
id: Helicobacter_E pylori_CN (+3) · Greengenes2 2024.09
Linked via GTDB R220 genome accessions — the same physical genomes, not a name match.
d__Bacteria; p__Campylobacterota_A; c__Campylobacteria; o__Campylobacterales; f__Helicobacteraceae; g__Helicobacter_E; s__Helicobacter_E pylori_CN
Name differs between releases: Name differs across Greengenes2 releases.
eHOMD
release 4.2Helicobacter pylori
id: HMT-812 · eHOMD 4.2
Linked by NCBI taxid — eHOMD records the same id NCBI does.
Bacteria;Pseudomonadota;Epsilonproteobacteria;Campylobacterales;Helicobacteraceae;Helicobacter
Only 1 genome — below the threshold for detecting a split, so “current” here means unverified, not confirmed.
Each panel shows one release. Switch a release to see how that database's answer changes — the taxon is held fixed by NCBI taxid, so every panel describes the same organism. Each panel also says how it was linked; how the databases are joined explains the routes.
Lineage by rank
| rank | NCBI | GTDB R232 | SILVA 138.2 | Greengenes2 2024.09 | eHOMD 4.2 |
|---|---|---|---|---|---|
| domain | Bacteria | Bacteria | Bacteria | Bacteria | Bacteria |
| phylum | Campylobacterota | Campylobacterota | Campylobacterota | first rank that differs from NCBI: Campylobacterota_A | first rank that differs from NCBI: Pseudomonadota |
| class | Epsilonproteobacteria | first rank that differs from NCBI: Campylobacteria | first rank that differs from NCBI: Campylobacteria | Campylobacteria | Epsilonproteobacteria |
| order | Campylobacterales | Campylobacterales | Campylobacterales | Campylobacterales | Campylobacterales |
| family | Helicobacteraceae | Helicobacteraceae | Helicobacteraceae | Helicobacteraceae | Helicobacteraceae |
| genus | Helicobacter | Helicobacter | Helicobacter | Helicobacter_E | Helicobacter |
| species | Helicobacter pylori | Helicobacter pylori_C | — | Helicobacter_E pylori_CN | — |
Each column is the release its box shows. marks the first rank at which a database's name differs from NCBI's, by exact text; a suffix such as _A counts. SILVA's path and eHOMD's columns end at genus, so their species row is blank; the box above names the species. Levels a source labels outside these seven ranks are in the API's ranks and not drawn here.
Names in NCBI
from NCBI Taxonomy taxdump · 2026-10-23- Helicobacter pyloricurrent
- Campylobacter pyloridissynonym
- Campylobacter pylori subsp. pylorisynonym
- Campylobacter pylorisynonym
- Helicobacter nemestrinaesynonym
Other names in these databases
GTDB R232
- Helicobacter pylori_C
- Helicobacter pylori
- Helicobacter pylori_BU
- Helicobacter pylori_CN
- Helicobacter pylori_CT
- Helicobacter pylori_DD
- Helicobacter pylori_CP
- Helicobacter pylori_CU
- Helicobacter pylori_CV
- Helicobacter pylori_A
- Helicobacter pylori_CY
- Helicobacter pylori_DE
- Helicobacter pylori_CW
- Helicobacter pylori_DF
- Helicobacter pylori_CX
- Helicobacter pylori_CI
- Helicobacter pylori_CJ
- Helicobacter pylori_DG
- Helicobacter pylori_CR
- Helicobacter pylori_CZ
- Helicobacter pylori_DH
- Helicobacter pylori_DI
- Helicobacter pylori_DJ
- Helicobacter pylori_DK
- Helicobacter pylori_DL
- Helicobacter pylori_DM
- Helicobacter pylori_CO
- Helicobacter pylori_DN
- Helicobacter pylori_CQ
- Helicobacter pylori_DA
- Helicobacter pylori_CG
- Helicobacter pylori_CK
- Helicobacter pylori_DO
- Helicobacter pylori_DP
- Helicobacter pylori_DB
- Helicobacter pylori_CS
- Helicobacter pylori_CH
- Helicobacter pylori_CL
- Helicobacter pylori_CM
- Helicobacter pylori_DC
- CAIJNA01 sp945883785
SILVA 138.264 of 383
- Helicobacter pylori
- Helicobacter pylori UM037
- Helicobacter pylori UM066
- Helicobacter pylori 26695
- Helicobacter pylori 26695-1
- Helicobacter pylori FD423
- Helicobacter pylori FD430
- Helicobacter pylori FD506
- Helicobacter pylori FD535
- Helicobacter pylori FD568
- Helicobacter pylori FD577
- Helicobacter pylori FD703
- Helicobacter pylori FD719
- Helicobacter pylori GC26
- Helicobacter pylori Hp H-36
- Helicobacter pylori J99
- Helicobacter pylori UM023
- Helicobacter pylori UM038
- Helicobacter pylori UM065
- Helicobacter pylori UM067
- Helicobacter pylori UM077
- Helicobacter pylori UM084
- Helicobacter pylori UM085
- Helicobacter pylori UM111
- Helicobacter pylori UM114
- Helicobacter pylori Hp A-20
- Helicobacter pylori Hp H-11
- Helicobacter pylori SS1
- Helicobacter pylori 26695-1CH
- Helicobacter pylori 26695-1CL
- Helicobacter pylori 35A
- Helicobacter pylori 51
- Helicobacter pylori 52
- Helicobacter pylori 83
- Helicobacter pylori Aklavik117
- Helicobacter pylori Aklavik86
- Helicobacter pylori B38
- Helicobacter pylori B8
- Helicobacter pylori BM012A
- Helicobacter pylori BM012S
- Helicobacter pylori CPY1313
- Helicobacter pylori CPY1962
- Helicobacter pylori CPY6081
- Helicobacter pylori CPY6261
- Helicobacter pylori CPY6271
- Helicobacter pylori Cuz20
- Helicobacter pylori ELS37
- Helicobacter pylori F16
- Helicobacter pylori F30
- Helicobacter pylori F32
- Helicobacter pylori F57
- Helicobacter pylori G27
- Helicobacter pylori Gambia94/24
- Helicobacter pylori HPAG1
- Helicobacter pylori HUP-B14
- Helicobacter pylori Hp A-11
- Helicobacter pylori Hp A-17
- Helicobacter pylori Hp A-27
- Helicobacter pylori Hp A-9
- Helicobacter pylori Hp H-19
- Helicobacter pylori Hp H-24b
- Helicobacter pylori Hp H-30
- Helicobacter pylori Hp H-44
- Helicobacter pylori Hp H-45
- …and 319 more, not listed — this taxon is a large placeholder bucket in SILVA 138.2.
Greengenes2 2024.09
- Helicobacter_E pylori_CN
- Bacillus_P_294101 aerius
- Campylobacter_A_477346 concisus
- Streptococcus rubneri