UniProtKB - Q54151 (PIC_SHIFL)
Protein
Serine protease pic autotransporter
Gene
pic
Organism
Shigella flexneri
Status
Functioni
Involved in intestinal colonization, displays in vitro mucinolytic activity, serum resistance, and hemagglutination. Important to penetrate the intestinal mucus layer.1 Publication
Miscellaneous
The S.flexneri genes encoding ShET1 enterotoxin subunits set1A and set1B are contained within the pic gene, on the complementary non-coding strand.
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Active sitei | 127 | Charge relay systemPROSITE-ProRule annotation | 1 | |
Active sitei | 155 | Charge relay systemPROSITE-ProRule annotation | 1 | |
Active sitei | 258 | 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 | S06.005 |
Names & Taxonomyi
Protein namesi | Recommended name: Serine protease pic autotransporter (EC:3.4.21.-)Alternative name(s): ShMu Cleaved into the following 2 chains: |
Gene namesi | Name:pic Synonyms:she, sigA Ordered Locus Names:SF2973, S3178 |
Organismi | Shigella flexneri |
Taxonomic identifieri | 623 [NCBI] |
Taxonomic lineagei | Bacteria › Proteobacteria › Gammaproteobacteria › Enterobacterales › Enterobacteriaceae › Shigella |
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 – 55 | Sequence analysisAdd BLAST | 55 | |
ChainiPRO_0000387607 | 56 – 1372 | Serine protease pic autotransporterAdd BLAST | 1317 | |
ChainiPRO_0000026976 | 56 – 1095 | Serine protease picAdd BLAST | 1040 | |
ChainiPRO_0000026977 | 1096 – 1372 | Serine protease pic 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 | 1095 – 1096 | CleavageSequence analysis | 2 |
Keywords - PTMi
ZymogenFamily & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Domaini | 56 – 301 | Peptidase S6PROSITE-ProRule annotationAdd BLAST | 246 | |
Domaini | 1106 – 1372 | 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
HOGENOMi | CLU_000723_0_0_6 |
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 |
PRINTSi | PR00921, IGASERPTASE |
SMARTi | View protein in SMART SM00869, Autotransporter, 1 hit |
SUPFAMi | SSF103515, SSF103515, 1 hit SSF51126, SSF51126, 2 hits |
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
Q54151-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MNKVYSLKYC PVTGGLIAVS ELARRVIKKT CRRLTHILLA GIPAICLCYS
60 70 80 90 100
QISQAGIVRS DIAYQIYRDF AENKGLFVPG ANDIPVYDKD GKLVGRLGKA
110 120 130 140 150
PMADFSSVSS NGVATLVSPQ YIVSVKHNGG YRSVSFGNGK NTYSLVDRNN
160 170 180 190 200
HPSIDFHAPR LNKLVTEVIP SAVTSEGTKA NAYKYTERYT AFYRVGSGTQ
210 220 230 240 250
YTKDKDGNLV KVAGGYAFKT GGTTGVPLIS DATIVSNPGQ TYNPVNGPLP
260 270 280 290 300
DYGAPGDSGS PLFAYDKQQK KWVIVAVLRA YAGINGATNW WNVIPTDYLN
310 320 330 340 350
QVMQDDFDAP VDFVSGLGPL NWTYDKTSGT GTLSQGSKNW TMHGQKDNDL
360 370 380 390 400
NAGKNLVFSG QNGAIILKDS VTQGAGYLEF KDSYTVSAES GKTWTGAGII
410 420 430 440 450
TDKGTNVTWK VNGVAGDNLH KLGEGTLTIN GTGVNPGGLK TGDGIVVLNQ
460 470 480 490 500
QADTAGNIQA FSSVNLASGR PTVVLGDARQ VNPDNISWGY RGGKLDLNGN
510 520 530 540 550
AVTFTRLQAA DYGAVITNNA QQKSQLLLDL KAQDTNVSEP TIGNISPFGG
560 570 580 590 600
TGTPGNLYSM ILNSQTRFYI LKSASYGNTL WGNSLNDPAQ WEFVGMNKNK
610 620 630 640 650
AVQTVKDRIL AGRAKQPVIF HGQLTGNMDV AIPQVPGGRK VIFDGSVNLP
660 670 680 690 700
EGTLSQDSGT LIFQGHPVIH ASISGSAPVS LNQKDWENRQ FTMKTLSLKD
710 720 730 740 750
ADFHLSRNAS LNSDIKSDNS HITLGSDRAF VDKNDGTGNY VIPEEGTSVP
760 770 780 790 800
DTVNDRSQYE GNITLNHNSA LDIGSRFTGG IDAYDSAVSI TSPDVLLTAP
810 820 830 840 850
GAFAGSSLTV HDGGHLTALN GLFSDGHIQA GKNGKITLSG TPVKDTANQY
860 870 880 890 900
APAVYLTDGY DLTGDNAALE ITRGAHASGD IHASAASTVT IGSDTPAELA
910 920 930 940 950
SAETAASAFA GSLLEGYNAA FNGAITGGRA DVSMHNALWT LGGDSAIHSL
960 970 980 990 1000
TVRNSRISSE GDRTFRTLTV NKLDATGSDF VLRTDLKNAD KINVTEKATG
1010 1020 1030 1040 1050
SDNSLNVSFM NNPAQGQALN IPLVTAPAGT SAEMFKAGTR VTGFSRVTPT
1060 1070 1080 1090 1100
LHVDTSGGNT KWILDGFKAE ADKAAAAKAD SFMNAGYKNF MTEVNNLNKR
1110 1120 1130 1140 1150
MGDLRDTNGD AGAWARIMSG AGSADGGYSD NYTHVQVGFD KKHELDGVDL
1160 1170 1180 1190 1200
FTGVTMTYTD SSADSHAFSG KTKSVGGGLY ASALFESGAY IDLIGKYIHH
1210 1220 1230 1240 1250
DNDYTGNFAS LGTKHYNTHS WYAGAETGYR YHLTEDTFIE PQAELVYGAV
1260 1270 1280 1290 1300
SGKTFRWKDG DMDLSMKNRD FSPLVGRTGV ELGKTFSGKD WSVTARAGTS
1310 1320 1330 1340 1350
WQFDLLNNGE TVLRDASGEK RIKGEKDSRM LFNVGMNAQI KDNMRFGLEF
1360 1370
EKSAFGKYNV DNAVNANFRY MF
Sequence cautioni
The sequence AAK00464 differs from that shown. Reason: Erroneous initiation.Curated
The sequence AAN44454 differs from that shown. Reason: Erroneous initiation.Curated
The sequence AAP18274 differs from that shown. Reason: Erroneous initiation.Curated
Natural variant
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Natural varianti | 354 | K → E in strain: M4243 and YSH6000T. | 1 | |
Natural varianti | 385 | T → P in strain: M4243 and YSH6000T. | 1 |
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | U35656 Genomic DNA Translation: AAB58244.1 AF200692 Genomic DNA Translation: AAK00464.1 Different initiation. AE005674 Genomic DNA Translation: AAN44454.2 Different initiation. AE014073 Genomic DNA Translation: AAP18274.1 Different initiation. |
RefSeqi | WP_001045650.1, NZ_WPGN01000146.1 |
Genome annotation databases
EnsemblBacteriai | AAN44454; AAN44454; SF2973 AAP18274; AAP18274; S3178 |
KEGGi | sfx:S3178 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | U35656 Genomic DNA Translation: AAB58244.1 AF200692 Genomic DNA Translation: AAK00464.1 Different initiation. AE005674 Genomic DNA Translation: AAN44454.2 Different initiation. AE014073 Genomic DNA Translation: AAP18274.1 Different initiation. |
RefSeqi | WP_001045650.1, NZ_WPGN01000146.1 |
3D structure databases
SMRi | Q54151 |
ModBasei | Search... |
Protein family/group databases
MEROPSi | S06.005 |
Genome annotation databases
EnsemblBacteriai | AAN44454; AAN44454; SF2973 AAP18274; AAP18274; S3178 |
KEGGi | sfx:S3178 |
Phylogenomic databases
HOGENOMi | CLU_000723_0_0_6 |
Miscellaneous databases
PHI-basei | PHI:2980 |
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 |
PRINTSi | PR00921, IGASERPTASE |
SMARTi | View protein in SMART SM00869, Autotransporter, 1 hit |
SUPFAMi | SSF103515, SSF103515, 1 hit SSF51126, SSF51126, 2 hits |
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 | PIC_SHIFL | |
Accessioni | Q54151Primary (citable) accession number: Q54151 Secondary accession number(s): Q7UBM2, Q83Q79, Q9AL58 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | July 19, 2005 |
Last sequence update: | July 19, 2005 | |
Last modified: | February 10, 2021 | |
This is version 131 of the entry and version 3 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Prokaryotic Protein Annotation Program |