IMG/PR Content

Source Type	Plasmids	PTUs
Isolate	139,318	50,142
Metagenome	552,270	175,483
Metagenome-assembled genome (MAG)	2,330	1,921
Metatranscriptome	5,566	2,033
Single amplified genome (SAG)	489	344
Total	699,973	214,950

Source Type

Plasmids

PTUs

Isolate

Metagenome

Metagenome-assembled genome (MAG)

Metatranscriptome

Single amplified genome (SAG)

489

344

Total

699,973

214,950

Completeness	Plasmids	PTUs
Putatively complete	154,680	30,675
Fragmented	545,293	193,206

Topology	Plasmids	PTUs
Concatemer	5,441	3,458
Direct terminal repeat	142,805	27,069
Inverted terminal repeat	3,212	1,991
Linear	548,515	192,359

Host Prediction	Plasmids	PTUs
Predicted: CRISPR spacer match	140,997	23,191
Predicted: Isolate taxonomy	138,415	49,953

Plasmid Function	Plasmids	PTUs
With MOB genes	411,459	132,111
With T4CP genes	159,159	58,082
With T4SS ATPase genes	143,385	51,111
With other conjugation genes	200,113	69,587
With complete conjugation system	57,247	19,994
With origin of transfer	41,195	7,851
With antibiotic resistance genes (ARGs)	33,815	9,440
Putative phage-plasmids	4,045	2,035

Similarity to Reference	Plasmids	PTUs
With close reference	287,783	53,922
Without close reference	412,190	167,818

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IMG/Plasmid Resources

Plasmids are mobile genetic elements that are tightly involved in the ecology and evolution of bacteria and archaea. They act as vectors for horizontal gene transfer, allowing them to mobilize accessory genes and expand the ecological niche of their hosts by conferring new metabolic capabilities and resistance to toxic compounds. Furthermore, plasmids have a wide range of applications in biotechnology and health, making them a subject of great interest in both academic and industrial research.

IMG/PR serves as a community plasmid resource, comprising the largest public collection of plasmid sequences identified from genomes, SAGs, MAGs, metagenomes and metatranscriptomes. It provides users with rich metadata to explore the functional and ecological landscape of plasmids, making it a valuable tool for the plasmid research community.

If you use IMG/PR resources or data to assist in research publications or proposals, please cite: IMG/PR - Camargo et al., 2023 (Nucleic Acids Research, gkad964)