title: Identification of phylogenetic position in the Chlamydiaceae family for Chlamydia strains released from monkeys and humans with chlamydial pathology.
abstract: Based on the results of the comparative analysis concerning relatedness and evolutional difference of the 16S-23S nucleotide sequences of the middle ribosomal cluster and 23S rRNA I domain, and based on identification of phylogenetic position for Chlamydophila pneumoniae and Chlamydia trichomatis strains released from monkeys, relatedness of the above stated isolates with similar strains released from humans and with strains having nucleotide sequences presented in the GenBank electronic database has been detected for the first time ever. Position of these isolates in the Chlamydiaceae family phylogenetic tree has been identified. The evolutional position of the investigated original Chlamydia and Chlamydophila strains close to analogous strains from the Gen-Bank electronic database has been demonstrated. Differences in the 16S-23S nucleotide sequence of the middle ribosomal cluster and 23S rRNA I domain of plasmid and nonplasmid Chlamydia trachomatis strains released from humans and monkeys relative to different genotype groups (group B-B, Ba, D, Da, E, L1, L2, L2a; intermediate group-F, G, Ga) have been revealed for the first time ever. Abnormality in incA chromosomal gene expression resulting in Chlamydia life development cycle disorder, and decrease of Chlamydia virulence can be related to probable changes in the nucleotide sequence of the gene under consideration.
authors.affiliation: Sechenov Moscow Medical Academy, Trubetskaya 8, Moscow, Russia. karaulov@mtu-net.ru
authors.forename: Alexander
authors.initials: A
authors.lastname: Karaulov
authors.forename: Vladimir
authors.initials: V
authors.lastname: Aleshkin
authors.forename: Vladimir
authors.initials: V
authors.lastname: Slobodenyuk
authors.forename: Olga
authors.initials: O
authors.lastname: Grechishnikova
authors.forename: Stanislav
authors.initials: S
authors.lastname: Afanasyev
authors.forename: Boris
authors.initials: B
authors.lastname: Lapin
authors.forename: Eteri
authors.initials: E
authors.lastname: Dzhikidze
authors.forename: Yuriy
authors.initials: Y
authors.lastname: Nesvizhsky
authors.forename: Irina
authors.initials: I
authors.lastname: Evsegneeva
authors.forename: Elena
authors.initials: E
authors.lastname: Voropayeva
authors.forename: Maxim
authors.initials: M
authors.lastname: Afanasyev
authors.forename: Andrei
authors.initials: A
authors.lastname: Aleshkin
authors.forename: Valeria
authors.initials: V
authors.lastname: Metelskaya
authors.forename: Ekaterina
authors.initials: E
authors.lastname: Yegorova
authors.forename: Alexandra
authors.initials: A
authors.lastname: Bayrakova
mesh_terms: D000818:Animals; D001483:Base Sequence; D002692:Chlamydia trachomatis / Q000145:classification / Q000235:genetics* / Q000302:isolation & purification; D002693:Chlamydiaceae / Q000145:classification / Q000235:genetics* / Q000302:isolation & purification; D002694:Chlamydiaceae Infections / Q000382:microbiology* / Q000662:veterinary; D016993:Chlamydophila pneumoniae / Q000145:classification / Q000235:genetics* / Q000302:isolation & purification; D004269:DNA, Bacterial / Q000235:genetics; D021903:DNA, Ribosomal Spacer / Q000032:analysis / Q000235:genetics; D019143:Evolution, Molecular; D005260:Female; D020459:Genes, rRNA; D005838:Genotype; D000882:Haplorhini; D006801:Humans; D008969:Molecular Sequence Data; D008992:Monkey Diseases / Q000382:microbiology*; D010802:Phylogeny; D016133:Polymerase Chain Reaction; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D012338:RNA, Ribosomal, 23S / Q000235:genetics; D017422:Sequence Analysis, DNA; D012689:Sequence Homology, Nucleic Acid
chemical_list: D004269:DNA, Bacterial; D021903:DNA, Ribosomal Spacer; D012336:RNA, Ribosomal, 16S; D012338:RNA, Ribosomal, 23S