| UniProtKB AC (Name) | UniProtKB Section | Organism | Description | |
|---|---|---|---|---|
| P76421 (YEGX_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized protein YegX; | |
| P0ACN7 (CYTR_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | HTH-type transcriptional repressor CytR; | |
| P32716 (MDTN_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Multidrug resistance protein MdtN; | |
| P0AEZ3 (MIND_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Septum site-determining protein MinD; Cell division inhibitor MinD; | |
| P30750 (METN_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Methionine import ATP-binding protein MetN; | |
| P03024 (GALR_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | HTH-type transcriptional regulator GalR; Galactose operon repressor; | |
| P0AC26 (NIRC_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Nitrite transporter NirC; | |
| P45523 (FKBA_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | FKBP-type peptidyl-prolyl cis-trans isomerase FkpA; Rotamase; | |
| P28630 (HOLA_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | DNA polymerase III subunit delta; | |
| P0A8Y5 (YIDA_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Sugar phosphatase YidA; | |
| P39346 (IDND_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | L-idonate 5-dehydrogenase (NAD(P)(+)); | |
| P0CI31 (HCAB_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | 3-phenylpropionate-dihydrodiol/cinnamic acid-dihydrodiol dehydrogenase; 2,3-dihydroxy-2,3-dihydrophenylpropionate dehydrogenase; 3-(cis-5,6-dihydroxycyclohexa-1,3-dien-1-yl)propanoate dehydrogenase; CI-dihydrodiol dehydrogenase; Cis-3-(2-carboxyethenyl)-3,5-cyclohexadiene-1,2-diol dehydrogenase; Cis-3-(2-carboxyethyl)-3,5-cyclohexadiene-1,2-diol dehydrogenase; PP-dihydrodiol dehydrogenase; | |
| P77147 (YDHT_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized protein YdhT; | |
| P07649 (TRUA_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | tRNA pseudouridine synthase A; tRNA pseudouridine(38-40) synthase; tRNA pseudouridylate synthase I; tRNA-uridine isomerase I; | |
| P37049 (YAEI_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Phosphodiesterase YaeI; | |
| P0AEB5 (YNAI_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Low conductance mechanosensitive channel YnaI; | |
| P39406 (RSMC_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Ribosomal RNA small subunit methyltransferase C; 16S rRNA m2G1207 methyltransferase; rRNA (guanine-N(2)-)-methyltransferase RsmC; | |
| P0AAH8 (SAPF_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Putrescine export system ATP-binding protein SapF; | |
| P45757 (GSPC_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Putative type II secretion system protein C; Putative general secretion pathway protein C; | |
| P77658 (YNAA_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Protein YnaA; | |
| P28635 (METQ_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | D-methionine-binding lipoprotein MetQ; | |
| P56262 (DLHH_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Putative carboxymethylenebutenolidase; Dienelactone hydrolase; | |
| P0ACN4 (ALLR_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | HTH-type transcriptional repressor AllR; Negative regulator of allantoin and glyoxylate utilization operons; | |
| P18811 (MALI_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Maltose regulon regulatory protein MalI; | |
| P75809 (YBJI_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | 5-amino-6-(5-phospho-D-ribitylamino)uracil phosphatase YbjI; | |
| P23878 (FEPC_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Ferric enterobactin transport ATP-binding protein FepC; | |
| P31680 (DJLA_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Co-chaperone protein DjlA; DnaJ-like protein DjlA; | |
| P06615 (REDF_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Resolvase; Protein D; | |
| P0ACK2 (AGAR_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Putative aga operon transcriptional repressor; | |
| P63386 (MLAF_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Intermembrane phospholipid transport system ATP-binding protein MlaF; | |
| P76346 (MTFA_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Mlc titration factor A; Mlc-binding protein; Probable zinc metallopeptidase MtfA; | |
| P75747 (ABRB_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Putative regulator AbrB; AidB regulator; | |
| P09148 (GAL7_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Galactose-1-phosphate uridylyltransferase; UDP-glucose--hexose-1-phosphate uridylyltransferase; | |
| P0AG00 (WZZE_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | ECA polysaccharide chain length modulation protein; | |
| P0AFQ7 (YCFH_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized metal-dependent hydrolase YcfH; | |
| P05020 (PYRC_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Dihydroorotase; | |
| P15006 (MCRC_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Type IV methyl-directed restriction enzyme EcoKMcrBC; Protein McrC; | |
| P07821 (FHUC_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Iron(3+)-hydroxamate import ATP-binding protein FhuC; Ferric hydroxamate uptake protein C; Ferrichrome transport ATP-binding protein FhuC; Iron(III)-hydroxamate import ATP-binding protein FhuC; | |
| P00805 (ASPG2_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | L-asparaginase 2; L-asparaginase II; L-asparagine amidohydrolase II; Colaspase; | |
| P0AFK9 (POTD_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Spermidine/putrescine-binding periplasmic protein; | |
| P00887 (AROH_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Phospho-2-dehydro-3-deoxyheptonate aldolase, Trp-sensitive; 3-deoxy-D-arabino-heptulosonate 7-phosphate synthase; DAHP synthase; Phospho-2-keto-3-deoxyheptonate aldolase; | |
| P77634 (YBCM_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Uncharacterized HTH-type transcriptional regulator YbcM; | |
| P25741 (WAAP_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Lipopolysaccharide core heptose(I) kinase WaaP; | |
| P37009 (FBPC_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Fe(3+) ions import ATP-binding protein FbpC; | |
| P37692 (WAAF_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Lipopolysaccharide heptosyltransferase 2; ADP-heptose:lipopolysaccharide heptosyltransferase II; | |
| P0A8U2 (YAFD_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | UPF0294 protein YafD; | |
| P76422 (THID_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Hydroxymethylpyrimidine/phosphomethylpyrimidine kinase; Hydroxymethylpyrimidine kinase; Hydroxymethylpyrimidine phosphate kinase; | |
| P0A759 (NAGB_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Glucosamine-6-phosphate deaminase; GlcN6P deaminase; Glucosamine-6-phosphate isomerase; | |
| P75895 (RUTD_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Putative carbamate hydrolase RutD; Aminohydrolase; | |
| P31678 (OTSB_ECOLI) | Swiss-Prot | Escherichia coli (strain K12) | Trehalose-6-phosphate phosphatase; Osmoregulatory trehalose synthesis protein B; Trehalose 6-phosphate phosphatase; Trehalose-phosphatase; |
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 2026_01 that was used for the most up to date SWISS-MODEL Repository.
| Proteins in proteome | Sequences modelled | Models |
| 4,403 | 3,758 | 6,310 |
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 | 34-mer | 40-mer | 44-mer | 48-mer | 60-mer |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3,734 | 1,658 | 130 | 485 | 19 | 144 | 9 | 57 | 4 | 19 | 2 | 16 | 6 | 1 | 1 | 2 | 1 | 11 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 2 |
