Complete genome sequence of Sphingobium sp. strain PAMC 28499 reveals a potential for degrading pectin with comparative genomics approach

So Ra Han, Sung Min Jang, Young Min Chi, Byeollee Kim, Sang Hee Jung, Yung Mi Lee, Jun Uetake, Jun Hyuck Lee, Hyun Park, Tae Jin Oh

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


Background: Spingobium sp. PAMC 28499 is isolated from the glaciers of Uganda. Uganda is a unique region where hot areas and glaciers coexist, with a variety of living creatures surviving, but the survey on them is very poor. The genetic character and complete genome information of Sphingobium strains help with environmental studies and the development of better to enzyme industry. Objective: In this study, complete genome sequence of Spingobium sp. PAMC 28499 and comparative analysis of Spingobium species strains isolated from variety of the region. Methods: Genome sequencingwas performed using PacBio sequel single-molecule real-time (SMRT) sequencing technology. The predicted gene sequences were functionally annotated and gene prediction was carried out using the program NCBI non-redundant database. And using dbCAN2 and KEGG data base were degradation pathway predicted and protein prediction about carbohydrate active enzymes (CAZymes). Results: The genome sequencehas 64.5% GC content, 4432 coding protein coding genes, 61 tRNAs, and 12 rRNA operons. Its genome encodes a simple set of metabolic pathways relevant to pectin and its predicted degradation protein an unusual distribution of CAZymes with extracellular esterases and pectate lyases. CAZyme annotation analyses revealed 165 genes related to carbohydrate active, and especially we have found GH1, GH2, GH3, GH38, GH35, GH51, GH51, GH53, GH106, GH146, CE12, PL1 and PL11 such as known pectin degradation genes from Sphingobium yanoikuiae. These results confirmed that this Sphingobium sp. strain PAMC 28499 have similar patterns to RG I pectin-degrading pathway. Conclusion: In this study, isolated and sequenced the complete genome of Spingobium sp. PAMC 28499. Also, this strain has comparative genome analysis. Through the complete genome we can predict how this strain can store and produce energy in extreme environment. It can also provide bioengineered data by finding new genes that degradation the pectin.

Original languageEnglish
Pages (from-to)1087-1096
Number of pages10
JournalGenes and Genomics
Issue number9
Publication statusPublished - 2020 Sept 1

Bibliographical note

Funding Information:
This work was supported by the Korea Polar Research Institute (KOPRI Grant Number PM20030).

Publisher Copyright:
© 2020, The Genetics Society of Korea.


  • Carbohydrate active enzyme
  • Comparative genomics
  • Genome sequencing
  • Pectin degradation
  • Sphingobium sp

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology
  • Genetics


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