Domains within Homo sapiens protein SPB8_HUMAN (P50452)

Serpin B8

Alternative representations: 1 /

Protein length374 aa
Source databaseUniProt
Identifiers SPB8_HUMAN, P50452, ENSP00000381072.2, ENSP00000381072, ENSP00000331368.3, ENSP00000331368, B4DTW2, Q7Z2V6, Q8N178, A0A024R2B1_HUMAN, A0A024R2B1, C9JVA8_HUMAN, C9JVA8, C9JTJ8_HUMAN, C9JTJ8, P50452-3
Source gene ENSG00000166401
Alternative splicing SPB8_HUMAN, A0A1B0GU38_HUMAN, P50452-2, ENSP00000414580.1, ENSP00000393456.1, H7BXK7_HUMAN, A0A087WTX6_HUMAN, ENSP00000438328.1

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

SPB8_HUMAN is shown as SERPINB8 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 SERPINB8

Protein SPB8_HUMAN is possibly involved in these pathways, based on its similarity to the listed KEGG orthologous groups:

KEGG pathways

PathwayDescription
map04610Complement and coagulation cascades
map05146Amoebiasis

KEGG orthologous groups

KONameDescription
K13963SERPINBserpin B
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 4 PTMs annotated in this protein:

PTMCount
Phosphorylation2
Ubiquitination1
Acetylation1

To see the full details, including possible functional associations between the PTMs, please visit the PTMcode annotation page for protein SERPINB8.

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.ENSP00000331368 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
93X6IChordata (phylum)serpin B,leukocyte elastase inhibitor,serpin B11/12
5QIBASarcopterygii (superclass)serpin B,serpin B11/12,leukocyte elastase inhibitor
8Z0QWMammalia (class)serpin B,serpin B8
4R2K4Euarchontoglires (superorder)serpin B8
505PIPrimates (order)serpin B8
9857RHaplorrhini (suborder)serpin B8
BVAAKSimiiformes (infraorder)serpin B8
9EQ3TCatarrhini (parvorder)serpin B8
7HDH9Opisthokonta (clade)serpin A,serpin B,leukocyte elastase inhibitor
9GNBQVertebrata (clade)serpin B,leukocyte elastase inhibitor,serpin B11/12
H4UFABilateria (clade)serpin A,serpin B,leukocyte elastase inhibitor
FWY80Hominoidea (superfamily)serpin B8
5MZ60Hominidae (family)serpin B8
5Y2VJHomininae (subfamily)serpin B8

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: