N2Jenomics Lab Pvt. Ltd. offers Bacterial RNA Sequencing services for comprehensive transcriptome analysis of prokaryotic organisms. Our workflow enables accurate gene expression profiling, transcript discovery, operon analysis, and functional genomics using advanced sequencing technologies and bioinformatics.

What Is Bacterial RNA Sequencing?

Bacterial RNA sequencing (RNA-Seq) is a high-throughput approach for studying the complete bacterial transcriptome. It enables genome-wide analysis of gene expression, transcript structure, operons, and regulatory RNAs under different environmental or experimental conditions.

Unlike eukaryotic RNA sequencing, bacterial RNA-Seq relies on rRNA depletion instead of poly(A) enrichment because bacterial mRNAs typically lack poly(A) tails. Strand-specific library preparation further improves transcript annotation and identification of antisense transcripts.

Advantages of Bacterial RNA Sequencing

• Accurate Gene Annotation

Improves genome annotation by identifying coding regions, small peptides, and previously unannotated genes.

• Regulatory RNA Discovery

Detects regulatory elements such as small RNAs (sRNAs), riboswitches, and untranslated regions involved in gene regulation.

• Operon Analysis

Characterizes operon organization and polycistronic transcripts to better understand bacterial gene regulation.

• Comprehensive Gene Expression Profiling

Measures genome-wide transcriptional changes across different growth conditions, treatments, and stress responses.

• Functional Genomics

Supports studies of bacterial physiology, metabolism, host-pathogen interactions, antibiotic resistance, and microbial adaptation.

Applications

Bacterial RNA sequencing is widely used for:

• • Genome-wide gene expression profiling
• • Differential gene expression analysis
• • Operon structure characterization
• • Identification of coding and non-coding RNAs
• • Transcript discovery and annotation
• • Stress response and environmental adaptation studies
• • Host-pathogen interaction research
• • Antibiotic resistance investigations
• • Functional pathway and regulatory network analysis

Bacterial RNA Sequencing Workflow

1. RNA Extraction

Isolation of high-quality total RNA from bacterial samples.

2. rRNA Depletion

Removal of ribosomal RNA to enrich messenger RNA and other functional transcripts.

3. Library Preparation

Reverse transcription, cDNA synthesis, fragmentation, adapter ligation, and PCR amplification.

4. High-Throughput Sequencing

Sequencing performed using Illumina or PacBio platforms, depending on project requirements.

5. Bioinformatics Analysis

Comprehensive analysis including:

• • Data quality assessment
• • Read alignment
• • Transcript assembly
• • Gene expression quantification
• • Differential expression analysis
• • Functional annotation and pathway enrichment
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Service Specifications

	Sample Requirements RNA amount: Total RNA≥1 μg (without degradation or DNA contamination) Cells ≥ 1x107 OD A260/A280 ratio ≥ 1.8, A260/230 ratio≥ 1.8, RIN ≥ 6 All total RNA samples should be DNA-free RNA should be stored in nuclease-free water or RNA Stable. Note: Sample amounts are listed for reference only. For detailed information, please contact us with your customized requests.
	Sequencing Strategy HiSeq X ten, 150 PE, 1~3 G/per sample MGI DNBSEQ-T7/DNBSEQ-G400
	Bioinformatics Analysis Gene structure level analysis Quality evaluation of sequencing data Raw data filtering Map to reference genome New transcript prediction UTR analysis Antisense transcript prediction sRNA analysis SNP detection and analysis InDel analysis Gene expression level analysis Differential gene expression level analysis GO and KEGG annotation of differential genes. GO/KEGG enrichment analysis of differential genes. Analysis of protein interaction networks Visualization result display Note: Recommended data outputs and analysis contents displayed are for reference only. For detailed information, please contact us with your customized requests.

Analysis Pipeline

Deliverables

• • The original sequencing data
• • Experimental results
• • Data analysis report
• • Details in Bacterial RNA Sequencing for your writing (customization)

1. Why is rRNA depletion important?

Ribosomal RNA (rRNA) accounts for the majority of total bacterial RNA, while mRNA represents only a small fraction. Removing rRNA enriches mRNA, improves sequencing efficiency, and enhances the accuracy of gene expression analysis.

2. Can bacterial RNA sequencing be performed without a reference genome?

A high-quality reference genome is strongly recommended. Since bacterial transcripts are often polycistronic, reference-based analysis provides more accurate transcript identification, gene annotation, and expression quantification.

3. How is bacterial RNA sequencing different from single-cell RNA sequencing?

Bacterial RNA sequencing measures the average gene expression of a bacterial population, whereas single-cell RNA sequencing profiles gene expression in individual cells, enabling the study of cellular heterogeneity and population diversity.