| UniProtKB AC (Name) | UniProtKB Section | Organism | Description | |
|---|---|---|---|---|
| P0DSG0 (PSSL_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Protein PssL; | |
| P0DSH2 (BAXL_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Putative translational regulatory protein BaxL; | |
| C1P607 (IBSA_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Small toxic protein IbsA; | |
| C1P608 (IBSB_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Small toxic protein IbsB; | |
| C1P615 (IBSC_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Small toxic protein IbsC; | |
| C1P616 (IBSD_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Small toxic protein IbsD; | |
| C1P617 (IBSE_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Small toxic protein IbsE; | |
| C1P619 (ILVX_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized protein IlvX; | |
| P0DSF9 (EVGL_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Protein EvgL; | |
| P0AD74 (LPF2_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Phenylalanine--tRNA ligase operon leader peptide; pheST attenuator peptide; | |
| P0AD72 (LPF_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | phe operon leader peptide; phe operon attenuator peptide; | |
| P60995 (LPHI_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | his operon leader peptide; his operon attenuator peptide; | |
| E2JKY7 (LPMG_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | mgtA leader peptide; Regulatory leader peptide for mgtA; | |
| P0AD92 (LPW_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | trp operon leader peptide; | |
| P0DW56 (SPFP_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Small protein SpfP; | |
| P45394 (YRBG_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Inner membrane protein YrbG; | |
| P76621 (GLAH_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Glutarate 2-hydroxylase; Carbon starvation induced protein D; | |
| P0AFD4 (NUOH_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | NADH-quinone oxidoreductase subunit H; NADH dehydrogenase I subunit H; NDH-1 subunit H; NUO8; | |
| P0AGG0 (THIL_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Thiamine-monophosphate kinase; | |
| P0A8N7 (EPMA_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Elongation factor P--(R)-beta-lysine ligase; EF-P post-translational modification enzyme A; EF-P-lysine lysyltransferase; GX; | |
| P77234 (YBEQ_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Sel1-repeat-containing protein YbeQ; | |
| P37344 (PSPF_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Psp operon transcriptional activator; Phage shock protein F; | |
| P15028 (FECB_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Fe(3+) dicitrate-binding periplasmic protein FecB; Iron(III) dicitrate-binding periplasmic protein; | |
| P0AEG1 (DPPC_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Dipeptide transport system permease protein DppC; | |
| P0C0U4 (RIMK_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Ribosomal protein bS6--L-glutamate ligase; Polyglutamate synthase; Ribosomal protein bS6 modification protein; | |
| P69380 (FIEF_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Cation-efflux pump FieF; Ferrous-iron efflux pump FieF; | |
| P0AAJ5 (FDOH_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Formate dehydrogenase-O iron-sulfur subunit; Aerobic formate dehydrogenase iron-sulfur subunit; FDH-Z subunit beta; Formate dehydrogenase-O subunit beta; | |
| P77746 (YBDO_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized HTH-type transcriptional regulator YbdO; | |
| Q47129 (FEAR_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Transcriptional activator FeaR; | |
| P0ABT8 (YIJE_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Probable cystine transporter YijE; | |
| P0AFR0 (RSSA_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | NTE family protein RssA; | |
| P45552 (YHFZ_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized protein YhfZ; | |
| P06616 (ERA_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | GTPase Era; GTP-binding protein Era; | |
| P39359 (YJHH_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Probable 2-dehydro-3-deoxy-D-pentonate aldolase YjhH; | |
| P0A9G2 (NHAR_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Transcriptional activator protein NhaR; Na(+)/H(+) antiporter regulatory protein; | |
| P0CF53 (INSD1_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Transposase InsD for insertion element IS2A; | |
| P0CF54 (INSD2_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Transposase InsD for insertion element IS2D; | |
| P0CF55 (INSD3_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Transposase InsD for insertion element IS2F; | |
| P0CF56 (INSD4_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Transposase InsD for insertion element IS2H; | |
| P0CF57 (INSD5_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Transposase InsD for insertion element IS2I; | |
| P0CF58 (INSD6_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Transposase InsD for insertion element IS2K; | |
| P0CF59 (INSD7_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Transposase InsD for insertion element IS2 on F plasmid; | |
| P62558 (SOPB_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Protein SopB; Plasmid partition protein B; | |
| P00803 (LEP_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Signal peptidase I; Leader peptidase I; | |
| P26646 (ACUI_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Probable acrylyl-CoA reductase AcuI; Acryloyl-coenzyme A reductase AcuI; | |
| P77735 (YAJO_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | 1-deoxyxylulose-5-phosphate synthase YajO; | |
| P0A9F3 (CYSB_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | HTH-type transcriptional regulator CysB; Cys regulon transcriptional activator; | |
| P37682 (YIAU_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized HTH-type transcriptional regulator YiaU; | |
| P0ACB2 (HEM2_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Delta-aminolevulinic acid dehydratase; Porphobilinogen synthase; | |
| P37666 (GHRB_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Glyoxylate/hydroxypyruvate reductase B; 2-ketoaldonate reductase; 2-ketogluconate reductase; |
Escherichia coli is a Gram negative gammaproteobacterium commonly found in the lower intestine of warm-blooded organisms (endotherms). Most E. coli strains are harmless and are part of the normal flora of the gut.
Since E. coli can survive outside the body for a limited amount of time, it is an indicator organism for fecal contamination of the environment. The descendants of two isolates, K-12 and B strain, are used routinely in molecular biology as both a tool and a model organism. It is the most widely studied prokaryotic model organism due to its ease of culturing and short generation time.
The first E. coli genome was sequenced in 1997 (K12 strain).
From left to right: i) The number of proteins in the reference proteome of Escherichia coli, ii) the number of unique protein sequences for which at least one model is available, iii) the total number of models and iv) a coverage bar plot is shown.
The bar plot shows the coverage for every protein in the reference proteome of Escherichia coli for which there is at least one model. Different colours (dark green to red boxes) represent the coverage of the targets. Targets with high coverage are represented in dark green (more than 80% of the target's length is covered by models), whereas low coverage is shown in red. The size of each box is proportional to the number of target sequences with a given coverage.
For information on the latest proteome for Escherichia coli, please visit UniProtKB.
You can easily download the latest protein sequences for Escherichia coli proteome here. Please note this download is for the current UniProtKB release, which may be different to release 2025_01 that was used for the most up to date SWISS-MODEL Repository.
| Proteins in proteome | Sequences modelled | Models |
| 4,402 | 3,730 | 6,298 |
Detailed coverage numbers are obtained by hovering the mouse over one of the boxes.
The plot shows the evolution over years (x-axis) of the fraction of Escherichia coli reference proteome residues (y-axis) for which structural information is available. Different colors (light blue to dark blue) in the plot represent the quality of the sequence alignment between the reference proteome sequences (targets) and the sequences of the proteins in the structure database (templates). Alignments with low sequence identity are displayed in light blue, whereas alignments with high sequence identity are depicted in dark blue. The SWISS-MODEL Template Library is used as database of templates. Only target-template alignments found by HHblits and only residues with atom coordinates are considered.
This chart shows the percentage of residues in the Escherichia coli proteome which are covered by experimental structures and the enhancement of coverage by homology modelling by the SWISS-MODEL pipeline. Experimental residue coverage is determined using SIFTS mapping. For residues which are not covered by experimental structures (including where there are no atom records in SIFTS mapping) the model coverage bars are coloured by QMEANDisCo local quality score.
Many proteins form oligomeric structures either by self-assembly (homo-oligomeric) or by assembly with other proteins (hetero-oligomeric) to accomplish their function. In SWISS-MODEL Repository, the quaternary structure annotation of the template is used to model the target sequence in its oligomeric form. Currently our method is limited to the modelling of homo-oligomeric assemblies. The oligomeric state of the template is only considered if the interface is conserved.
| Single Chain | 2-mer | 3-mer | 4-mer | 5-mer | 6-mer | 7-mer | 8-mer | 9-mer | 10-mer | 11-mer | 12-mer | 14-mer | 15-mer | 16-mer | 20-mer | 22-mer | 24-mer | 25-mer | 26-mer | 30-mer | 33-mer | 34-mer | 40-mer | 44-mer | 48-mer | 60-mer |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3,721 | 1,643 | 137 | 489 | 21 | 146 | 9 | 56 | 4 | 20 | 3 | 16 | 5 | 1 | 1 | 2 | 1 | 11 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 2 |