| UniProtKB AC (Name) | UniProtKB Section | Organism | Description | |
|---|---|---|---|---|
| P31448 (YIDK_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized symporter YidK; | |
| P26608 (FLIS_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Flagellar secretion chaperone FliS; | |
| P0AAW5 (YBHQ_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Inner membrane protein YbhQ; | |
| P0A7C8 (PSIE_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Protein PsiE; | |
| Q46835 (YGHG_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Lipoprotein YghG; Putative pilotin YghG; | |
| P0AEV7 (HYCH_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Formate hydrogenlyase maturation protein HycH; | |
| P75684 (YAGP_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Putative LysR family substrate binding domain-containing protein YagP; | |
| P16659 (SYP_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Proline--tRNA ligase; Global RNA synthesis factor; Prolyl-tRNA synthetase; | |
| P0AF76 (YJFI_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized protein YjfI; | |
| P42905 (PTPC2_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Putative N-acetylgalactosamine permease IIC component 2; EIIC-Aga'; PTS system N-acetylgalactosamine-specific EIIC component 2; | |
| Q9JMR4 (YUBK_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized serine-rich protein YubK; | |
| P32152 (FRVR_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Putative frv operon regulatory protein; Putative phosphotransferase EIIA component; 2.7.1.-; Putative PTS system EIIA component; | |
| P21893 (RECJ_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Single-stranded-DNA-specific exonuclease RecJ; | |
| P76007 (NHAP2_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | K(+)/H(+) antiporter NhaP2; Potassium/proton antiporter NhaP2; | |
| P45750 (HOFP_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | DNA utilization protein HofP; | |
| P75988 (YCGX_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized protein YcgX; | |
| P64585 (YQJE_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Inner membrane protein YqjE; | |
| P28696 (YAAI_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | UPF0412 protein YaaI; | |
| P0AEQ1 (GLCG_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Protein GlcG; | |
| P75679 (INSN1_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Putative transposase InsN for insertion sequence element IS911A; | |
| P0ABX2 (FLGC_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Flagellar basal-body rod protein FlgC; Putative proximal rod protein; | |
| Q47153 (LFHA_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Putative truncated flagellar export/assembly protein LfhA; | |
| P45804 (YHGE_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized protein YhgE; | |
| P00893 (ILVI_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Acetolactate synthase isozyme 3 large subunit; AHAS-III; ALS-III; Acetohydroxy-acid synthase III large subunit; | |
| Q46824 (YGFX_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Inner membrane protein YgfX; Toxin CptA; | |
| P76481 (YFBK_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized protein YfbK; | |
| P08370 (YGDB_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized protein YgdB; | |
| P06966 (DICA_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | HTH-type transcriptional regulator DicA; Repressor protein of division inhibition gene dicA; | |
| Q06067 (ATOS_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Signal transduction histidine-protein kinase AtoS; | |
| P0AAV6 (YBGS_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized protein YbgS; | |
| P0ABC0 (ATPZ_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | ATP synthase protein I; | |
| P27842 (YIGF_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized protein YigF; | |
| P0ACN2 (YTFH_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized HTH-type transcriptional regulator YtfH; | |
| P0AFU2 (YFBS_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized transporter YfbS; | |
| P77265 (MDLA_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Multidrug resistance-like ATP-binding protein MdlA; | |
| Q46802 (UACR_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Putative uric acid sigma-54-dependent transcriptional regulator UacR; Uric acid regulator; | |
| P20343 (CYSX_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Putative uncharacterized protein CysX; | |
| P0AAG5 (MDLB_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Multidrug resistance-like ATP-binding protein MdlB; | |
| P37002 (FLUC_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Fluoride-specific ion channel FluC; Fluoride exporter; | |
| P09162 (YJAA_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized protein YjaA; | |
| P28911 (YHHH_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized protein YhhH; ORF-B2; | |
| P0AAY1 (BSSR_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Biofilm regulator BssR; | |
| P42615 (MZRA_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Modulator protein MzrA; | |
| Q47274 (REQ1_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Prophage antitermination protein Q homolog QuuD; Antitermination protein Q homolog from lambdoid prophage DLP12; | |
| P32711 (NRFF_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Formate-dependent nitrite reductase complex subunit NrfF; | |
| P15068 (TRBF_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Protein TrbF; | |
| P0AFP2 (ATL_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | DNA base-flipping protein; Alkyltransferase-like protein ATL; | |
| P52096 (YAER_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized protein YaeR; | |
| P18006 (TRBI_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Protein TrbI; | |
| P45522 (KEFB_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Glutathione-regulated potassium-efflux system protein KefB; K(+)/H(+) antiporter; NEM-activable K(+)/H(+) antiporter; |
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 2024_02 that was used for the most up to date SWISS-MODEL Repository.
| Proteins in proteome | Sequences modelled | Models |
| 4,403 | 3,676 | 6,176 |
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 | 22-mer | 24-mer | 25-mer | 26-mer | 30-mer | 33-mer | 34-mer | 40-mer | 44-mer | 48-mer | 55-mer | 60-mer |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3,649 | 1,628 | 137 | 467 | 19 | 137 | 10 | 58 | 4 | 19 | 2 | 14 | 4 | 1 | 1 | 2 | 12 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 |