Epidermidibacterium keratini

Species of bacterium

Epidermidibacterium keratini
Scientific classification
Domain:	Bacteria
Phylum:	Actinomycetota
Class:	Actinomycetia
Order:	Geodermatophilales
Family:	Antricoccaceae
Genus:	Epidermidibacterium Lee et al. 2018^[1]
Species:	E. keratini
Binomial name
*Epidermidibacterium keratini* Lee et al. 2018^[1]
Type strain
EPI-7 JCM 31644 KCCM 90264

Epidermidibacterium keratini is a Gram-positive, chemoheterotrophic, non-motile, non-sporeforming, rod-shaped, aerobic bacterium that it was first isolated from human epidermal keratinocytes in 2018.^[1] It is part of the normal human flora, typically the skin flora.^[2]

Bacteriology

Human skin provides a habitat for various microorganisms that stably maintain communities through commensal relationships.^[3] And skin aging is associated with changes in cutaneous physiology including interactions with a skin microbial community.^[4] This strain was first isolated from young woman. Additionally, the younger skin appeared to have high proportion of E. keratini , while the older skin had no E. keratini but rather other types of bacteria that this species has been found to be related to skin aging.^[2]

References

^ ^a ^b ^c Lee DG, Trujillo ME, Kang S, Nam JJ, Kim YJ. (2018). "Epidermidibacterium keratini gen. nov., sp. nov., a member of the family Sporichthyaceae, isolated from keratin epidermis". Int J Syst Evol Microbiol. 68: 745–750. doi:10.1099/ijsem.0.002579. PMID 29458473.
^ ^a ^b Lee YG, Lee DG, Gwag JE, Kim M, Kim M, Kim HG, et al. (March 2019). "A 1,1′-biuracil from Epidermidibacterium keratini EPI-7 shows anti-aging effects on human dermal fibroblasts". Applied Biological Chemistry. 62 (1): 14. doi:10.1186/s13765-019-0421-9.
^ Cogen AL, Nizet V, Gallo RL (March 2008). "Skin microbiota: a source of disease or defence?". The British Journal of Dermatology. 158 (3): 442–55. doi:10.1111/j.1365-2133.2008.08437.x. PMC 2746716. PMID 18275522.
^ Shibagaki N, Suda W, Clavaud C, Bastien P, Takayasu L, Iioka E, et al. (September 2017). "Aging-related changes in the diversity of women's skin microbiomes associated with oral bacteria". Scientific Reports. 7 (1): 10567. Bibcode:2017NatSR...710567S. doi:10.1038/s41598-017-10834-9. PMC 5585242. PMID 28874721.

Prokaryotes: Bacteria classification

Domain

Archaea

Bacteria

Eukaryota

(major groups

Excavata

Diaphoretickes

Hacrobia

Cryptista

Rhizaria

Alveolata

Stramenopiles

Plants

Amorphea

Amoebozoa

Opisthokonta

Animals

Fungi

Mesomycetozoea)

Terrabacteria
BV1, BV3, BV5

others	Actinomycetota Acidimicrobiia Actinomycetia "Aquicultoria" Coriobacteriia "Geothermincolia" "Humimicrobiia" Rubrobacteria Thermoleophilia "Bipolaricaulota" "Bipolaricaulia" Chloroflexota "Caldilineia" Chloroflexia Dehalococcoidia Ktedonobacteria "Limnocylindria" Deinococcota "Deinococcia" "Dormiibacterota" "Dormibacteria" Armatimonadota "Abditibacteriia" Armatimonadia Chthonomonadia Fimbriimonadia "Heboniibacteriia" "Zipacnadia" "Eremiobacterota" "Eudoremicrobiia" "Xenobiia" "Eremiobacteria"
Cyanoprokaryota	Cyanobacteriota Cyanobacteria "Sericytochromatia" "Vampirovibrionophyceae" "Margulisiibacteriota" "Marinamargulisbacteria" "Riflemargulisbacteria" "Saganbacteria" "Termititenacia"
Firmicutes BV3 Low GC	Bacillota "Bacillia" Bacillota A "Clostridiia" "Thermoanaerobacteria" "Thermosediminibacteria" Bacillota D "Dethiobacteria" "Natranaerobiia" "Proteinivoracia" Bacillota E "Sulfobacillia" "Symbiobacteriia" "Thermaerobacteria" Bacillota G "Hydrogenisporia" Limnochordia "Desulfotomaculota" "Carboxydocellia" "Carboxydothermia" "Dehalobacteriia" "Desulfitobacteriia" "Desulfotomaculia" "Moorellia" "Peptococcia" "Syntrophomonadia" "Thermincolia" "Halanaerobiaeota" "Halanaerobiia" "Selenobacteria" "Selenomonadia"

CPR group

"Elulota"
- "Elulimicrobia"
"Patescibacteria"
- ABY1
- "Absconditabacteria"
- "Andersenbacteria"
- "Berkelbacteria"
- "Dojkabacteria"
- "Doudnabacteria"
- "Gracilibacteria"
- "Howlettbacteria"
- "Katanobacteria"
- "Kazanbacteria"
- "Microgenomatia"
- "Paceibacteria"
- "Saccharimonadia"
- "Torokbacteria"
- "Wirthbacteria"

Thermotogida

Synergistetes	Atribacterota Atribacteria Synergistota Synergistia
Thermocalda	Caldisericota Caldisericia Coprothermobacterota Coprothermobacteria Dictyoglomerota Dictyoglomeria "Lithacetigenota" "Lithacetigenia" "Thermodesulfobiota" "Thermodesulfobiia" Thermotogota "Thermotogia"

Fusobacterida

Fusobacteriota
- Fusobacteriia
"Macinerneyibacteriota"
- "Macinerneyibacteriia"
"Muiribacteriota"
- "Muiribacteriia"
"Rifleibacteriota"
- "Ozemibacteria"
"Walliibacteriota"

Hydrobacteria
BV2, BV4

Clade 1

"Aerophobota"
- "Aerophobia"
"Auribacterota"
- "Ancaeobacteria"
- "Auribacteria"
- "Erginobacteria"
- "Tritonobacteria"
"Desantisiibacteriota"
Elusimicrobiota
- Elusimicrobiia
- Endomicrobiia
"Firestoneibacteriota"
"Goldiibacteriota"
"Omnitrophota"
- "Omnitrophia"
- "Velamenicoccia"
"Ratteibacteriota"

Clade 2

"Abyssubacteria"
"Hinthialibacterota"
- "Hinthialibacteria"
"Hydrogenedentota"
- "Hydrogenedentia"
"Poribacteriota"
"Saltatorellota"
- "Saltatorellae"
"Sumerlaeota"
- "Sumerlaeia"

Spirochaeto
bacteriobiontes

"Babelota"
- "Babeliae"
"Lindowiibacteriota"
Spirochaetota
- "Brevinematia"
- "Brachyspirae"
- "Exilispiria"
- "Leptospiria"
- "Spirochaetia"

PVC group
(Planctobacteria)

Chlamydiota
- Chlamydiia
Planctomycetota
- "Brocadiia"
- Phycisphaeria
- Planctomycetia
- "Uabimicrobiia"
Verrucomicrobiota
- Kiritimatiellia
- Lentisphaeria
- Verrucomicrobiia

FCB group
(Sphingobacteria)

Bacteroidota
- Bacteroidia
- Chlorobiia
- "Ignavibacteriia"
- "Kapabacteria"
- "Kryptoniia"
- Rhodothermia
Calditrichota
- Calditrichia
"Cloacimonadota"
- "Cloacimonadia"
"Coatesiibacteriota"
"Cosmopoliota"
- "Cosmopolitia"
"Delongiibacteriota"
"Edwardsiibacteriota"
"Eiseniibacteriota"
"Electryoneota"
- "Electryoneia"
- "Tariuqbacteria"
"Fermentibacterota"
- "Fermentibacteria"
Fibrobacterota
- Chitinivibrionia
- Fibrobacteria
- "Raymondbacteriia"
Gemmatimonadota
- Gemmatimonadia
- "Glassbacteria"
"Heilongiota"
- "Heilongiia"
"Hydrothermota"
- "Hydrothermia"
- "Stahlbacteria"
"Krumholzibacteriota"
- "Krumholzibacteriia"
"Latescibacterota"
- "Handelsmanbacteria"
- "Latescibacteria"
"Neomarinimicrobiota"
"Marinisomatota"
- "Marinisomatia"
"Tianyaibacteriota"
"Zixiibacteriota"

Proteobacteria
BV2

Aquificida	"Acidulodesulfobacteriota" "Acidulodesulfobacteriia" Aquificota Aquificia "Desulfurobacteriia" Campylobacterota "Campylobacteria" Desulfurellia "Calescibacteriota" "Calescibacteriia" Chrysiogenota Chrysiogenia "Dadaibacteriota" "Dadabacteria" Deferribacterota "Deferribacteria" Desulfobacterota G Syntrophorhabdia "Thermosulfidibacterota" "Thermosulfidibacteria"
Deltaproteobacteria	Bdellovibrionota Bacteriovoracia Bdellovibrionia Oligoflexia "Binatota" "Binatia" "Deferrimicrobiota" "Anaeroferrophilia" "Deferrimicrobiia" "Deferrisomatota" Deferrisomatia "Desulfuromonadota" Desulfuromonadia "Lernaellota" "Lernaellia" "Methylomirabilota" "Methylomirabilia" "Moduliflexota" "Moduliflexia" Myxococcota Myxococcia "Bradymonadia" Polyangiia Nitrospinota Nitrospinia Nitrospirota Nitrospiria "Thermodesulfovibrionia" SAR324 "Lambdaproteobacteria" "Schekmaniibacteriota" "Tectimicrobiota" "Entotheonellia" "Thermodesulfobacteriota"
others	Acidobacteriota "Acidobacteriia" "Aminicenantia" Blastocatellia "Fischerbacteria" "Guanabaribacteriia" "Holophagia" "Polarisedimenticolia" Thermoanaerobaculia Vicinamibacteria "Canglongiota" "Canglongiia" "Leptospirillaeota" "Leptospirillia" Pseudomonadota "Caulobacteria" "Mariprofundia" "Magnetococcia" "Pseudomonadia"