Domains within Homo sapiens protein TF2B_HUMAN (Q00403)

Transcription initiation factor IIB

Alternative representations: 1 /

Protein length316 aa
Source databaseUniProt
Identifiers TF2B_HUMAN, Q00403, ENSP00000359531.5, ENSP00000359531, A8K1A7, Q5JS30, F7HU28_MACMU, F7HU28, A0A2K5P4H3_CERAT, A0A2K5P4H3, TF2B_MACFA, Q4R3J5, TF2B_PONAB, Q5R886, F6XPV5_CALJA, F6XPV5, K7DSH3_PANTR, K7DSH3, H9Z849_MACMU, H9Z849, E2RPG1_CANLF, E2RPG1, G3RWT5_GORGO, G3RWT5, F2Z4J6_BOVIN, F2Z4J6, H0WSS0_OTOGA, H0WSS0, A0A2J8SKU9_PONAB, A0A2J8SKU9, A0A0D9S6T9_CHLSB, A0A0D9S6T9, M3W519_FELCA, M3W519, A0A2K6NPI1_RHIRO, A0A2K6NPI1, A0A096N3D1_PAPAN, A0A096N3D1, A0A2K5DX77_AOTNA, A0A2K5DX77, A0A2K6SSG5_SAIBB, A0A2K6SSG5, A0A2K5JTC8_COLAP, A0A2K5JTC8, A0A2K5QFE8_CEBCA, A0A2K5QFE8, M3Y0A9_MUSPF, M3Y0A9, F2Z5J6_PIG, F2Z5J6, A0A2K5YRX0_MANLE, A0A2K5YRX0, W6FIM3_PANTA, W6FIM3, A0A1U7TA01_TARSY, A0A1U7TA01, K9KEN4_HORSE, K9KEN4, G3TV45_LOXAF, G3TV45, G7MHU8_MACMU, G7MHU8, D2H7E4_AILME, D2H7E4, H2PZC5_PANTR, H2PZC5, F6PJP4_HORSE, F6PJP4, A0A287AL22_PIG, A0A287AL22, A0A212CHM2_CEREH, A0A212CHM2
Source gene ENSG00000137947
Alternative splicing TF2B_HUMAN, B1APE1_HUMAN, B1APE2_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

TF2B_HUMAN is shown as GTF2B 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 GTF2B

Protein TF2B_HUMAN is possibly involved in these pathways, based on its similarity to the listed KEGG orthologous groups:

KEGG pathways

PathwayDescription
map05203Viral carcinogenesis

KEGG orthologous groups

KONameDescription
K03124TFIIB, GTF2B, SUA7, tfbtranscription initiation factor TFIIB

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
Phosphorylation13
Ubiquitination13
Acetylation2
Caspase cleavage aspartic acid2

To see the full details, including possible functional associations between the PTMs, please visit the PTMcode annotation page for protein ENSPTRG00000000932.

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.ENSP00000359531 in eggNOG.

OGTaxonomic classDescription
LKOG1597All organisms (root)transcription initiation factor TFIIB,regulator of ribosome biosynthesis,RNA-binding protein
KOG1597Eukaryota (superkingdom)transcription initiation factor TFIIB,regulator of ribosome biosynthesis
HUDAHMetazoa (kingdom)transcription initiation factor TFIIB
94E4VChordata (phylum)transcription initiation factor TFIIB
5QHMSSarcopterygii (superclass)transcription initiation factor TFIIB
8ZGHIMammalia (class)transcription initiation factor TFIIB
4R9QBEuarchontoglires (superorder)transcription initiation factor TFIIB
4ZPUQPrimates (order)transcription initiation factor TFIIB
98RHIHaplorrhini (suborder)transcription initiation factor TFIIB
BVAWJSimiiformes (infraorder)transcription initiation factor TFIIB
9EJW0Catarrhini (parvorder)transcription initiation factor TFIIB
9FEAAVertebrata (clade)transcription initiation factor TFIIB
H4FEIBilateria (clade)transcription initiation factor TFIIB
7I3X9Opisthokonta (clade)transcription initiation factor TFIIB
FX5X4Hominoidea (superfamily)transcription initiation factor TFIIB
5N0VFHominidae (family)transcription initiation factor TFIIB
5XY5DHomininae (subfamily)transcription initiation factor TFIIB

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: