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IPR023614

Description

IPR023614 is a Porin domain superfamily.

<p>Porins are found in the outer membranes of Gram-negative bacteria, mitochondria and chloroplasts, where they form ion-selective channels for small hydrophilic molecules (up to ~600 D) [[cite:PUB00005073], [cite:PUB00003829]]. X-ray structure analyses of several bacterial porins [[cite:PUB00001604], [cite:PUB00003475], [cite:PUB00003334]] have revealed a large 16-stranded anti-parallel β-barrel structure enclosing the transmembrane pore, by contrast with all other integral membrane proteins described to date, which are α-helical. Three subunits form a trimer; the 3-fold axis is approximately parallel to the barrel axes and is assumed to be perpendicular to the membrane plane.</p> <p>From the range of porins now known, similarities have been observed between porins from different species, and between porins of different specificity within the same species. But most porins cannot be related to each other on the basis of sequence alone, and this is reflected in the lengths of the known porin sequences, which range from 282-483 residues/monomer.</p> <p>This superfamily represents the structural domain found in porins.</p>

This description is obtained from EB-eye REST.

Associated GO terms

Unable to find any GO terms for the transcript with the identifier.

Associated Lotus transcripts 22

Transcript Name Description Predicted domains Domain count
VDAC1.3 [Lotus japonicus] gi|36957198|gb|AAQ87021.1| 9
VDAC1.3 [Lotus japonicus] gi|36957198|gb|AAQ87021.1| 9
PREDICTED: mitochondrial import receptor subunit TOM40 homolog 1-like [Glycine max] gi|356524630|ref|XP_003530931.1| 6
VDAC1.1 [Lotus japonicus] gi|36957170|gb|AAQ87019.1| 9
9
VDAC1.2 [Lotus japonicus] gi|36957183|gb|AAQ87020.1| 9
9
VDAC2.1 [Lotus japonicus] gi|36957216|gb|AAQ87022.1| 7
VDAC2.1 [Lotus japonicus] gi|36957216|gb|AAQ87022.1| 7
PREDICTED: mitochondrial outer membrane protein porin 1-like [Glycine max] gi|356512503|ref|XP_003524958.1| 4
VDAC3.1 [Lotus japonicus] gi|36957233|gb|AAQ87023.1| 7
VDAC3.1 [Lotus japonicus] gi|36957233|gb|AAQ87023.1| 7
PREDICTED: mitochondrial import receptor subunit TOM40-1-like [Cicer arietinum] gi|502138216|ref|XP_004503327.1| 7
Mitochondrial outer membrane protein porin, partial [Medicago truncatula] gi|357437585|ref|XP_003589068.1| 6
Mitochondrial outer membrane protein porin; TAIR: AT3G01280.1 voltage dependent anion channel 1; Swiss-Prot: sp|P42054|VDAC_PEA Outer plastidial membrane protein porin; TrEMBL-Plants: tr|Q6W2J5|Q6W2J5_LOTJA VDAC1.1; Found in the gene: LotjaGi1g1v0498100 9
Mitochondrial outer membrane protein porin; TAIR: AT3G01280.1 voltage dependent anion channel 1; Swiss-Prot: sp|P42054|VDAC_PEA Outer plastidial membrane protein porin; TrEMBL-Plants: tr|Q6W2J4|Q6W2J4_LOTJA VDAC1.2; Found in the gene: LotjaGi2g1v0256500 9
Outer mitochondrial membrane protein porin; TAIR: AT5G67500.3 voltage dependent anion channel 2; Swiss-Prot: sp|Q9FJX3|VDAC2_ARATH Mitochondrial outer membrane protein porin 2; TrEMBL-Plants: tr|Q6W2J2|Q6W2J2_LOTJA VDAC2.1; Found in the gene: LotjaGi2g1v0409200 8
Mitochondrial outer membrane protein porin; TAIR: AT3G01280.1 voltage dependent anion channel 1; Swiss-Prot: sp|P42056|VDAC2_SOLTU Mitochondrial outer membrane protein porin of 36 kDa; TrEMBL-Plants: tr|Q6W2J3|Q6W2J3_LOTJA VDAC1.3; Found in the gene: LotjaGi4g1v0185600 9
Mitochondrial outer membrane protein porin; TAIR: AT3G01280.1 voltage dependent anion channel 1; Swiss-Prot: sp|Q9SRH5|VDAC1_ARATH Mitochondrial outer membrane protein porin 1; TrEMBL-Plants: tr|A0A0L9TRN9|A0A0L9TRN9_PHAAN Uncharacterized protein; Found in the gene: LotjaGi4g1v0246600 7
Outer mitochondrial membrane protein porin; TAIR: AT5G57490.1 voltage dependent anion channel 4; Swiss-Prot: sp|Q10S27|VDAC6_ORYSJ Mitochondrial outer membrane protein porin 6; TrEMBL-Plants: tr|Q6W2J1|Q6W2J1_LOTJA VDAC3.1; Found in the gene: LotjaGi4g1v0299800 8
Mitochondrial import receptor subunit tom40, putative; TAIR: AT3G20000.1 translocase of the outer mitochondrial membrane 40; Swiss-Prot: sp|Q9LHE5|TO401_ARATH Mitochondrial import receptor subunit TOM40-1; TrEMBL-Plants: tr|I3TAE4|I3TAE4_LOTJA Uncharacterized protein; Found in the gene: LotjaGi4g1v0459300 8
Outer mitochondrial membrane protein porin; TAIR: AT5G67500.3 voltage dependent anion channel 2; Swiss-Prot: sp|Q9FJX3|VDAC2_ARATH Mitochondrial outer membrane protein porin 2; TrEMBL-Plants: tr|I3SIM2|I3SIM2_LOTJA Uncharacterized protein; Found in the gene: LotjaGi5g1v0033000 9

Co-occuring domains 1

A list of co-occurring predicted domains within the L. japonicus gene space:

Predicted domain Source Observations Saturation (%)
cd07306 CDD 1 4.55