Domains within Homo sapiens protein PIGR_HUMAN (P01833)

Polymeric immunoglobulin receptor

Alternative representations: 1 /

Protein length764 aa
Source databaseUniProt
Identifiers PIGR_HUMAN, P01833, ENSP00000348888.4, ENSP00000348888, Q68D81, Q8IZY7
Source gene ENSG00000162896

Domain architecture analysis

Display all proteins with similar:

Domain organisationProteins having all the domains as the query in the same order. Additional domains are allowed.
Domain compositionProteins with the same domain composition have at least one copy of each of the domains of the query.

This domain architecture was probably invented with the emergence of cellular organisms

Predicted functional partners

PIGR_HUMAN is shown as PIGR in the network

Click and drag to pan the network, and zoom by using your mouse wheel. Click the protein nodes for additional options.

The network on the left comes from STRING, a database of known and predicted protein interactions. Displayed here is the evidence view, where different line colors represent the types of evidence for the association.

Open the STRING annotation page for PIGR

Protein PIGR_HUMAN is possibly involved in these pathways, based on its similarity to the listed KEGG orthologous groups:

KEGG pathways

PathwayDescription
map04672Intestinal immune network for IgA production
map04810Regulation of actin cytoskeleton

KEGG orthologous groups

KONameDescription
K20395CD300B_D_FCO300B/D/F antigen
K13073PIGRpolymeric immunoglobulin receptor

Post-translational modifications

PTM annotation is taken from PTMcode, a resource of known and predicted functional associations between protein post-translational modifications (PTMs). There are 20 PTMs annotated in this protein:

PTMCount
Phosphorylation11
N-linked glycosylation7
Oxidation2

To see the full details, including possible functional associations between the PTMs, please visit the PTMcode annotation page for protein PIGR.

Orthologous groups

Orthology information is taken from eggNOG, a database of orthologous groups of genes. Orthologous groups containing this protein are listed below. This protein is named 9606.ENSP00000348888 in eggNOG.

OGTaxonomic classDescription
LKOG3637All organisms (root)CO300B/D/F antigen,polymeric immunoglobulin receptor,integrin alpha 6
KOG3637Eukaryota (superkingdom)CO300B/D/F antigen,polymeric immunoglobulin receptor,integrin alpha 6
HTVQAMetazoa (kingdom)CO300B/D/F antigen,polymeric immunoglobulin receptor,CD300 antigen
93R4WChordata (phylum)CO300B/D/F antigen,polymeric immunoglobulin receptor,CD300 antigen
5QWMYSarcopterygii (superclass)polymeric immunoglobulin receptor,CO300B/D/F antigen
8Z9CSMammalia (class)polymeric immunoglobulin receptor
4RGCFEuarchontoglires (superorder)polymeric immunoglobulin receptor
4ZU49Primates (order)polymeric immunoglobulin receptor
98PAGHaplorrhini (suborder)polymeric immunoglobulin receptor
BV5UFSimiiformes (infraorder)polymeric immunoglobulin receptor
9EKA4Catarrhini (parvorder)polymeric immunoglobulin receptor
9G844Vertebrata (clade)CO300B/D/F antigen,polymeric immunoglobulin receptor,CD300 antigen
H53I1Bilateria (clade)CO300B/D/F antigen,polymeric immunoglobulin receptor,CD300 antigen
7NG1TOpisthokonta (clade)CO300B/D/F antigen,polymeric immunoglobulin receptor,CD300 antigen
FX4SNHominoidea (superfamily)polymeric immunoglobulin receptor
5N7X6Hominidae (family)polymeric immunoglobulin receptor
5Y6C2Homininae (subfamily)polymeric immunoglobulin receptor

The SMART diagram above represents a summary of the results shown below. Domains with scores less significant than established cutoffs are not shown in the diagram. Features are also not shown when two or more occupy the same piece of sequence; the priority for display is given by SMART > PFAM > PROSPERO repeats > Signal peptide > Transmembrane > Coiled coil > Low complexity. In either case, features not shown in the above diagram are listed in the right side table below, and the reason for their omission is shown in the 'Reason' column.

Confidently predicted domains, repeats, motifs and features:

Outlier homologues and homologues of known structure:

Features NOT shown in the diagram: