Domains within Homo sapiens protein IC1_HUMAN (P05155)

Plasma protease C1 inhibitor

Alternative representations: 1 /

Protein length500 aa
Source databaseUniProt
Identifiers IC1_HUMAN, P05155, ENSP00000278407.4, ENSP00000278407, Q7Z455, Q96FE0, A6NMU0, A8KAI9, B2R6L5, B4E1F0, B4E1H2, Q16304, Q547W3, Q59EI5, Q9UC49, Q9UCF9, E9KL26_HUMAN, E9KL26
Source gene ENSG00000149131
Alternative splicing ENSP00000384561.1, IC1_HUMAN, ENSP00000399746.1, H9KV48_HUMAN, P05155-3, ENSP00000367575.2, E9PGN7_HUMAN, E9PK97_HUMAN, H0YCA1_HUMAN, A0A087WUD9_HUMAN

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

IC1_HUMAN is shown as SERPING1 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 SERPING1

Protein IC1_HUMAN is possibly involved in these pathways, based on its similarity to the listed KEGG orthologous groups:

KEGG pathways

PathwayDescription
map04610Complement and coagulation cascades

KEGG orthologous groups

KONameDescription
K04525SERPINAserpin A
K04001SERPING1, C1INHC1 inhibitor

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 30 PTMs annotated in this protein:

PTMCount
O-GalNAc glycosylation8
O-linked glycosylation8
N-linked glycosylation7
Phosphorylation3
Acetylation2
Proteolytic cleavage1
Methylation1

To see the full details, including possible functional associations between the PTMs, please visit the PTMcode annotation page for protein SERPING1.

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.ENSP00000278407 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
HVSKSMetazoa (kingdom)C1 inhibitor
93IT2Chordata (phylum)C1 inhibitor
5QM4KSarcopterygii (superclass)C1 inhibitor
8ZB1CMammalia (class)C1 inhibitor
4R615Euarchontoglires (superorder)C1 inhibitor
504K9Primates (order)C1 inhibitor
98IT5Haplorrhini (suborder)C1 inhibitor
BV82DSimiiformes (infraorder)C1 inhibitor
9EK0ECatarrhini (parvorder)C1 inhibitor
7JA2UOpisthokonta (clade)C1 inhibitor
9FFMRVertebrata (clade)C1 inhibitor
H3TY2Bilateria (clade)C1 inhibitor
FXD6ZHominoidea (superfamily)C1 inhibitor
5NEUMHominidae (family)C1 inhibitor
5XRS5Homininae (subfamily)C1 inhibitor

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: