Domains within Homo sapiens protein PAI1_HUMAN (P05121)

Plasminogen activator inhibitor 1

Alternative representations: 1 /

Protein length402 aa
Source databaseUniProt
Identifiers PAI1_HUMAN, P05121, ENSP00000223095.4, ENSP00000223095, B7Z4S0, F8WD53, A0A024QYT5_HUMAN, A0A024QYT5, B7Z1D9_HUMAN, B7Z1D9, B7ZAB0_HUMAN, B7ZAB0
Source gene ENSG00000106366

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

PAI1_HUMAN is shown as SERPINE1 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 SERPINE1

Protein PAI1_HUMAN is possibly involved in these pathways, based on its similarity to the listed KEGG orthologous groups:

KEGG pathways

PathwayDescription
map05142Chagas disease
map04610Complement and coagulation cascades

KEGG orthologous groups

KONameDescription
K03982SERPINE1, PAI1plasminogen activator inhibitor 1
K04525SERPINAserpin A

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 7 PTMs annotated in this protein:

PTMCount
Proteolytic cleavage3
Phosphorylation2
N-linked glycosylation2

To see the full details, including possible functional associations between the PTMs, please visit the PTMcode annotation page for protein SERPINE1.

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.ENSP00000223095 in eggNOG.

OGTaxonomic classDescription
LCOG4826All organisms (root)serpin A,serpin B,serpin peptidase inhibitor, clade H, member 1
KOG2392Eukaryota (superkingdom)serpin A,serpin B,serpin peptidase inhibitor, clade H, member 1
HTCWEMetazoa (kingdom)serpin A,serpin B,leukocyte elastase inhibitor
93Q22Chordata (phylum)plasminogen activator inhibitor 1
5QT4SSarcopterygii (superclass)plasminogen activator inhibitor 1
8ZC74Mammalia (class)plasminogen activator inhibitor 1
4REWREuarchontoglires (superorder)plasminogen activator inhibitor 1
4ZKGUPrimates (order)plasminogen activator inhibitor 1
98CHIHaplorrhini (suborder)plasminogen activator inhibitor 1
BV3Y1Simiiformes (infraorder)plasminogen activator inhibitor 1
9EM5DCatarrhini (parvorder)plasminogen activator inhibitor 1
7HDH9Opisthokonta (clade)serpin A,serpin B,leukocyte elastase inhibitor
9G5SBVertebrata (clade)plasminogen activator inhibitor 1
H4UFABilateria (clade)serpin A,serpin B,leukocyte elastase inhibitor
FX6Q0Hominoidea (superfamily)plasminogen activator inhibitor 1
5N67SHominidae (family)plasminogen activator inhibitor 1
5Y8FZHomininae (subfamily)plasminogen activator inhibitor 1

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: