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Protein

Porin

Gene
N/A
Organism
Rhodobacter capsulatus (Rhodopseudomonas capsulata)
Status
Reviewed-Annotation score: Annotation score: 2 out of 5-Experimental evidence at protein leveli

Functioni

Forms channels that allow the passive diffusion of small hydrophilic solutes up to an exclusion limit of about 0.6 kDa.

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionPorin
Biological processIon transport, Transport

Names & Taxonomyi

Protein namesi
Recommended name:
Porin
OrganismiRhodobacter capsulatus (Rhodopseudomonas capsulata)
Taxonomic identifieri1061 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaAlphaproteobacteriaRhodobacteralesRhodobacteraceaeRhodobacter

Subcellular locationi

GO - Cellular componenti

Keywords - Cellular componenti

Cell outer membrane, Membrane

Pathology & Biotechi

Chemistry databases

DrugBankiDB04233. (Hydroxyethyloxy)Tri(Ethyloxy)Octane.

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001980281 – 301PorinAdd BLAST301

Interactioni

Subunit structurei

Homotrimer.

Structurei

Secondary structure

1301
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Beta strandi2 – 14Combined sources13
Beta strandi19 – 34Combined sources16
Beta strandi40 – 46Combined sources7
Helixi47 – 49Combined sources3
Helixi50 – 53Combined sources4
Turni54 – 56Combined sources3
Beta strandi57 – 65Combined sources9
Beta strandi68 – 74Combined sources7
Helixi78 – 83Combined sources6
Turni90 – 93Combined sources4
Beta strandi105 – 107Combined sources3
Helixi113 – 115Combined sources3
Beta strandi118 – 125Combined sources8
Beta strandi128 – 134Combined sources7
Beta strandi137 – 139Combined sources3
Beta strandi148 – 158Combined sources11
Beta strandi161 – 171Combined sources11
Turni175 – 177Combined sources3
Beta strandi181 – 192Combined sources12
Beta strandi195 – 207Combined sources13
Helixi208 – 214Combined sources7
Beta strandi221 – 223Combined sources3
Beta strandi226 – 240Combined sources15
Beta strandi243 – 254Combined sources12
Turni255 – 257Combined sources3
Beta strandi258 – 272Combined sources15
Beta strandi275 – 284Combined sources10
Beta strandi286 – 288Combined sources3
Beta strandi292 – 301Combined sources10

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
2PORX-ray1.80A1-301[»]
3PORX-ray2.50A1-301[»]
ProteinModelPortaliP31243.
SMRiP31243.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP31243.

Family & Domainsi

Domaini

The monomer consists of a 16-stranded antiparallel beta-pleated sheet barrel (171 residues), three short alpha-helices (18 residues) and 13 hydrogen-bonded reverse turns (26 residues).

Keywords - Domaini

Transmembrane, Transmembrane beta strand

Family and domain databases

Gene3Di2.40.160.10. 1 hit.
InterProiView protein in InterPro
IPR023614. Porin_dom.

Sequencei

Sequence statusi: Complete.

P31243-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
EVKLSGDARM GVMYNGDDWN FSSRSRVLFT MSGTTDSGLE FGASFKAHES
60 70 80 90 100
VGAETGEDGT VFLSGAFGKI EMGDALGASE ALFGDLYEVG YTDLDDRGGN
110 120 130 140 150
DIPYLTGDER LTAEDNPVLL YTYSAGAFSV AASMSDGKVG ETSEDDAQEM
160 170 180 190 200
AVAAAYTFGN YTVGLGYEKI DSPDTALMAD MEQLELAAIA KFGATNVKAY
210 220 230 240 250
YADGELDRDF ARAVFDLTPV AAAATAVDHK AYGLSVDSTF GATTVGGYVQ
260 270 280 290 300
VLDIDTIDDV TYYGLGASYD LGGGASIVGG IADNDLPNSD MVADLGVKFK

F
Length:301
Mass (Da):31,537
Last modified:July 1, 1993 - v1
Checksum:i4C57149C348D2943
GO

Sequence databases

PIRiS16070.

Cross-referencesi

Sequence databases

PIRiS16070.

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
2PORX-ray1.80A1-301[»]
3PORX-ray2.50A1-301[»]
ProteinModelPortaliP31243.
SMRiP31243.
ModBaseiSearch...
MobiDBiSearch...

Chemistry databases

DrugBankiDB04233. (Hydroxyethyloxy)Tri(Ethyloxy)Octane.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Miscellaneous databases

EvolutionaryTraceiP31243.

Family and domain databases

Gene3Di2.40.160.10. 1 hit.
InterProiView protein in InterPro
IPR023614. Porin_dom.
ProtoNetiSearch...

Entry informationi

Entry nameiPORI_RHOCA
AccessioniPrimary (citable) accession number: P31243
Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 1, 1993
Last sequence update: July 1, 1993
Last modified: March 15, 2017
This is version 76 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Direct protein sequencing

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.