UniProtKB - Q8FDW4 (SAT_ECOL6)
Protein
Serine protease sat autotransporter
Gene
sat
Organism
Escherichia coli O6:H1 (strain CFT073 / ATCC 700928 / UPEC)
Status
Functioni
Shows serine protease activity and displays cytophatic activity, including elongation, rounding, and detachment of a proportion of the cells from monolayer in culture. Triggers vacuolation within the cytoplasm of the human bladder and kidney cells.2 Publications
Activity regulationi
Inhibited by phenylmethylsulfonyl fluoride and Pefabloc.1 Publication
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Active sitei | 121 | Charge relay systemPROSITE-ProRule annotation | 1 | |
Active sitei | 149 | Charge relay systemPROSITE-ProRule annotation | 1 | |
Active sitei | 256 | Charge relay systemPROSITE-ProRule annotation | 1 |
GO - Molecular functioni
- serine-type endopeptidase activity Source: InterPro
GO - Biological processi
- pathogenesis Source: UniProtKB-KW
Keywordsi
Molecular function | Hydrolase, Protease, Serine protease |
Biological process | Virulence |
Protein family/group databases
MEROPSi | N04.002 |
TCDBi | 1.B.12.4.6, the autotransporter-1 (at-1) family |
Names & Taxonomyi
Protein namesi | Recommended name: Serine protease sat autotransporter (EC:3.4.21.-)Cleaved into the following 2 chains: Alternative name(s): Secreted autotransporter toxin sat |
Gene namesi | Name:sat Ordered Locus Names:c3619 |
Organismi | Escherichia coli O6:H1 (strain CFT073 / ATCC 700928 / UPEC) |
Taxonomic identifieri | 199310 [NCBI] |
Taxonomic lineagei | Bacteria › Proteobacteria › Gammaproteobacteria › Enterobacterales › Enterobacteriaceae › Escherichia › |
Proteomesi |
|
Subcellular locationi
Other locations
- Periplasm By similarity
Extracellular region or secreted
Other locations
Other locations
- Cell outer membrane By similarity; Multi-pass membrane protein By similarity
Note: The cleaved C-terminal fragment (autotransporter domain) is localized in the outer membrane.By similarity
Extracellular region or secreted
- extracellular region Source: UniProtKB-SubCell
Other locations
- cell outer membrane Source: UniProtKB-SubCell
- cell surface Source: UniProtKB-SubCell
- integral component of membrane Source: UniProtKB-KW
- periplasmic space Source: UniProtKB-SubCell
Keywords - Cellular componenti
Cell outer membrane, Membrane, Periplasm, SecretedPTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Signal peptidei | 1 – 49 | 1 PublicationAdd BLAST | 49 | |
ChainiPRO_0000387608 | 50 – 1295 | Serine protease sat autotransporterAdd BLAST | 1246 | |
ChainiPRO_0000026978 | 50 – 1018 | Serine protease satAdd BLAST | 969 | |
ChainiPRO_0000026979 | 1019 – 1295 | Serine protease sat translocatorSequence analysisAdd BLAST | 277 |
Post-translational modificationi
Cleaved to release the mature protein from the outer membrane.Curated
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Sitei | 1018 – 1019 | CleavageSequence analysis | 2 |
Keywords - PTMi
ZymogenFamily & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Domaini | 51 – 300 | Peptidase S6PROSITE-ProRule annotationAdd BLAST | 250 | |
Domaini | 1029 – 1295 | AutotransporterPROSITE-ProRule annotationAdd BLAST | 267 |
Domaini
The signal peptide, cleaved at the inner membrane, guides the autotransporter protein to the periplasmic space. Then, insertion of the C-terminal translocator domain in the outer membrane forms a hydrophilic pore for the translocation of the passenger domain to the bacterial cell surface, with subsequent cleavage (By similarity).By similarity
Keywords - Domaini
Signal, Transmembrane, Transmembrane beta strandPhylogenomic databases
eggNOGi | COG3468, Bacteria |
HOGENOMi | CLU_000723_0_0_6 |
OMAi | IIGFRVG |
Family and domain databases
Gene3Di | 2.160.20.20, 1 hit 2.40.128.130, 1 hit |
InterProi | View protein in InterPro IPR005546, Autotransporte_beta IPR036709, Autotransporte_beta_dom_sf IPR024973, ESPR IPR006315, OM_autotransptr_brl IPR012332, P22_tailspike-like_C_sf IPR011050, Pectin_lyase_fold/virulence IPR000710, Peptidase_S6 IPR030396, Peptidase_S6_dom |
Pfami | View protein in Pfam PF03797, Autotransporter, 1 hit PF13018, ESPR, 1 hit PF02395, Peptidase_S6, 1 hit |
SMARTi | View protein in SMART SM00869, Autotransporter, 1 hit |
SUPFAMi | SSF103515, SSF103515, 1 hit SSF51126, SSF51126, 1 hit |
TIGRFAMsi | TIGR01414, autotrans_barl, 1 hit |
PROSITEi | View protein in PROSITE PS51208, AUTOTRANSPORTER, 1 hit PS51691, PEPTIDASE_S6, 1 hit |
i Sequence
Sequence statusi: Complete.
: The displayed sequence is further processed into a mature form. Sequence processingi
Q8FDW4-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MNKIYSLKYS AATGGLIAVS ELAKRVSGKT NRKLVATMLS LAVAGTVNAA
60 70 80 90 100
NIDISNVWAR DYLDLAQNKG IFQPGATDVT ITLKNGDKFS FHNLSIPDFS
110 120 130 140 150
GAAASGAATA IGGSYSVTVA HNKKNPQAAE TQVYAQSSYR VVDRRNSNDF
160 170 180 190 200
EIQRLNKFVV ETVGATPAET NPTTYSDALE RYGIVTSDGS KKIIGFRAGS
210 220 230 240 250
GGTSFINGES KISTNSAYSH DLLSASLFEV TQWDSYGMMI YKNDKTFRNL
260 270 280 290 300
EIFGDSGSGA YLYDNKLEKW VLVGTTHGIA SVNGDQLTWI TKYNDKLVSE
310 320 330 340 350
LKDTYSHKIN LNGNNVTIKN TDITLHQNNA DTTGTQEKIT KDKDIVFTNG
360 370 380 390 400
GDVLFKDNLD FGSGGIIFDE GHEYNINGQG FTFKGAGIDI GKESIVNWNA
410 420 430 440 450
LYSSDDVLHK IGPGTLNVQK KQGANIKIGE GNVILNEEGT FNNIYLASGN
460 470 480 490 500
GKVILNKDNS LGNDQYAGIF FTKRGGTLDL NGHNQTFTRI AATDDGTTIT
510 520 530 540 550
NSDTTKEAVL AINNEDSYIY HGNINGNIKL THNINSQDKK TNAKLILDGS
560 570 580 590 600
VNTKNDVEVS NASLTMQGHA TEHAIFRSSA NHCSLVFLCG TDWVTVLKET
610 620 630 640 650
ESSYNKKFNS DYKSNNQQTS FDQPDWKTGV FKFDTLHLNN ADFSISRNAN
660 670 680 690 700
VEGNISANKS AITIGDKNVY IDNLAGKNIT NNGFDFKQTI STNLSIGETK
710 720 730 740 750
FTGGITAHNS QIAIGDQAVV TLNGATFLDN TPISIDKGAK VIAQNSMFTT
760 770 780 790 800
KGIDISGELT MMGIPEQNSK TVTPGLHYAA DGFRLSGGNA NFIARNMASV
810 820 830 840 850
TGNIYADDAA TITLGQPETE TPTISSAYQA WAETLLYGFD TAYRGAITAP
860 870 880 890 900
KATVSMNNAI WHLNSQSSIN RLETKDSMVR FTGDNGKFTT LTVNNLTIDD
910 920 930 940 950
SAFVLRANLA QADQLVVNKS LSGKNNLLLV DFIEKNGNSN GLNIDLVSAP
960 970 980 990 1000
KGTAVDVFKA TTRSIGFSDV TPVIEQKNDT DKATWTLIGY KSVANADAAK
1010 1020 1030 1040 1050
KATLLMSGGY KAFLAEVNNL NKRMGDLRDI NGESGAWARI ISGTGSAGGG
1060 1070 1080 1090 1100
FSDNYTHVQV GADNKHELDG LDLFTGVTMT YTDSHAGSDA FSGETKSVGA
1110 1120 1130 1140 1150
GLYASAMFES GAYIDLIGKY VHHDNEYTAT FAGLGTRDYS SHSWYAGAEV
1160 1170 1180 1190 1200
GYRYHVTDSA WIEPQAELVY GAVSGKQFSW KDQGMNLTMK DKDFNPLIGR
1210 1220 1230 1240 1250
TGVDVGKSFS GKDWKVTARA GLGYQFDLFA NGETVLRDAS GEKRIKGEKD
1260 1270 1280 1290
GRMLMNVGLN AEIRDNLRFG LEFEKSAFGK YNVDNAINAN FRYSF
Sequence cautioni
The sequence AAN82067 differs from that shown. Reason: Erroneous initiation.Curated
Experimental Info
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Sequence conflicti | 58 | W → Y AA sequence (PubMed:11029690).Curated | 1 | |
Sequence conflicti | 60 | R → S AA sequence (PubMed:11029690).Curated | 1 |
Natural variant
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Natural varianti | 140 | R → K in strain: Nissle 1917. | 1 | |
Natural varianti | 352 | D → N in strain: Nissle 1917. | 1 | |
Natural varianti | 579 | S → T in strain: Nissle 1917. | 1 | |
Natural varianti | 612 | Y → H in strain: Nissle 1917. | 1 | |
Natural varianti | 669 | V → A in strain: Nissle 1917. | 1 | |
Natural varianti | 729 | D → N in strain: Nissle 1917. | 1 | |
Natural varianti | 894 | N → D in strain: Nissle 1917. | 1 | |
Natural varianti | 1041 | I → M in strain: Nissle 1917. | 1 |
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AF289092 Genomic DNA Translation: AAG30168.1 AJ586888 Genomic DNA Translation: CAE55775.1 AE014075 Genomic DNA Translation: AAN82067.1 Different initiation. |
Genome annotation databases
EnsemblBacteriai | AAN82067; AAN82067; c3619 |
KEGGi | ecc:c3619 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | AF289092 Genomic DNA Translation: AAG30168.1 AJ586888 Genomic DNA Translation: CAE55775.1 AE014075 Genomic DNA Translation: AAN82067.1 Different initiation. |
3D structure databases
SMRi | Q8FDW4 |
ModBasei | Search... |
Protein-protein interaction databases
STRINGi | 199310.c3619 |
Protein family/group databases
MEROPSi | N04.002 |
TCDBi | 1.B.12.4.6, the autotransporter-1 (at-1) family |
Genome annotation databases
EnsemblBacteriai | AAN82067; AAN82067; c3619 |
KEGGi | ecc:c3619 |
Phylogenomic databases
eggNOGi | COG3468, Bacteria |
HOGENOMi | CLU_000723_0_0_6 |
OMAi | IIGFRVG |
Miscellaneous databases
PHI-basei | PHI:5262 |
Family and domain databases
Gene3Di | 2.160.20.20, 1 hit 2.40.128.130, 1 hit |
InterProi | View protein in InterPro IPR005546, Autotransporte_beta IPR036709, Autotransporte_beta_dom_sf IPR024973, ESPR IPR006315, OM_autotransptr_brl IPR012332, P22_tailspike-like_C_sf IPR011050, Pectin_lyase_fold/virulence IPR000710, Peptidase_S6 IPR030396, Peptidase_S6_dom |
Pfami | View protein in Pfam PF03797, Autotransporter, 1 hit PF13018, ESPR, 1 hit PF02395, Peptidase_S6, 1 hit |
SMARTi | View protein in SMART SM00869, Autotransporter, 1 hit |
SUPFAMi | SSF103515, SSF103515, 1 hit SSF51126, SSF51126, 1 hit |
TIGRFAMsi | TIGR01414, autotrans_barl, 1 hit |
PROSITEi | View protein in PROSITE PS51208, AUTOTRANSPORTER, 1 hit PS51691, PEPTIDASE_S6, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | SAT_ECOL6 | |
Accessioni | Q8FDW4Primary (citable) accession number: Q8FDW4 Secondary accession number(s): Q6KD43, Q9F6T1 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | July 19, 2005 |
Last sequence update: | July 19, 2005 | |
Last modified: | December 2, 2020 | |
This is version 115 of the entry and version 2 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Prokaryotic Protein Annotation Program |