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Protein

Activin receptor type-2B

Gene

ACVR2B

Organism
Sus scrofa (Pig)
Status
Reviewed-Annotation score: Annotation score: 4 out of 5-Experimental evidence at transcript leveli

Functioni

Transmembrane serine/threonine kinase activin type-2 receptor forming an activin receptor complex with activin type-1 serine/threonine kinase receptors (ACVR1, ACVR1B or ACVR1c). Transduces the activin signal from the cell surface to the cytoplasm and is thus regulating many physiological and pathological processes including neuronal differentiation and neuronal survival, hair follicle development and cycling, FSH production by the pituitary gland, wound healing, extracellular matrix production, immunosuppression and carcinogenesis. Activin is also thought to have a paracrine or autocrine role in follicular development in the ovary. Within the receptor complex, the type-2 receptors act as a primary activin receptors (binds activin-A/INHBA, activin-B/INHBB as well as inhibin-A/INHA-INHBA). The type-1 receptors like ACVR1B act as downstream transducers of activin signals. Activin binds to type-2 receptor at the plasma membrane and activates its serine-threonine kinase. The activated receptor type-2 then phosphorylates and activates the type-1 receptor. Once activated, the type-1 receptor binds and phosphorylates the SMAD proteins SMAD2 and SMAD3, on serine residues of the C-terminal tail. Soon after their association with the activin receptor and subsequent phosphorylation, SMAD2 and SMAD3 are released into the cytoplasm where they interact with the common partner SMAD4. This SMAD complex translocates into the nucleus where it mediates activin-induced transcription. Inhibitory SMAD7, which is recruited to ACVR1B through FKBP1A, can prevent the association of SMAD2 and SMAD3 with the activin receptor complex, thereby blocking the activin signal. Activin signal transduction is also antagonized by the binding to the receptor of inhibin-B via the IGSF1 inhibin coreceptor (By similarity).By similarity

Catalytic activityi

ATP + [receptor-protein] = ADP + [receptor-protein] phosphate.

Cofactori

Mg2+By similarity, Mn2+By similarity

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei217ATPPROSITE-ProRule annotation1
Active sitei321Proton acceptorPROSITE-ProRule annotation1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Nucleotide bindingi196 – 204ATPPROSITE-ProRule annotation9

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Kinase, Receptor, Serine/threonine-protein kinase, Transferase

Keywords - Ligandi

ATP-binding, Magnesium, Manganese, Metal-binding, Nucleotide-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Activin receptor type-2B (EC:2.7.11.30)
Alternative name(s):
Activin receptor type IIB
Short name:
ACTR-IIB
Gene namesi
Name:ACVR2B
OrganismiSus scrofa (Pig)
Taxonomic identifieri9823 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCetartiodactylaSuinaSuidaeSus
Proteomesi
  • UP000008227 Componenti: Unplaced

Subcellular locationi

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Topological domaini19 – 137ExtracellularSequence analysisAdd BLAST119
Transmembranei138 – 158HelicalSequence analysisAdd BLAST21
Topological domaini159 – 512CytoplasmicSequence analysisAdd BLAST354

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Cell membrane, Membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Signal peptidei1 – 18Sequence analysisAdd BLAST18
ChainiPRO_000023441919 – 512Activin receptor type-2BAdd BLAST494

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Disulfide bondi29 ↔ 59By similarity
Glycosylationi42N-linked (GlcNAc...)Sequence analysis1
Disulfide bondi49 ↔ 77By similarity
Glycosylationi65N-linked (GlcNAc...)Sequence analysis1
Disulfide bondi84 ↔ 103By similarity
Disulfide bondi90 ↔ 102By similarity
Disulfide bondi104 ↔ 109By similarity

Post-translational modificationi

Phosphorylated. Constitutive phosphorylation is in part catalyzed by its own kinase activity (By similarity).By similarity

Keywords - PTMi

Disulfide bond, Glycoprotein, Phosphoprotein

Proteomic databases

PaxDbiQ66T47.

Interactioni

Subunit structurei

Forms an activin receptor complex with activin type II receptors such as ACVR1B. Interacts with VPS39.By similarity

Protein-protein interaction databases

STRINGi9823.ENSSSCP00000028777.

Structurei

3D structure databases

ProteinModelPortaliQ66T47.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini190 – 480Protein kinasePROSITE-ProRule annotationAdd BLAST291

Sequence similaritiesi

Contains 1 protein kinase domain.PROSITE-ProRule annotation

Keywords - Domaini

Signal, Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiKOG3653. Eukaryota.
ENOG410XS2Z. LUCA.
HOGENOMiHOG000231495.
HOVERGENiHBG054502.
InParanoidiQ66T47.
KOiK13596.

Family and domain databases

InterProiIPR000472. Activin_recp.
IPR011009. Kinase-like_dom.
IPR000719. Prot_kinase_dom.
IPR008271. Ser/Thr_kinase_AS.
IPR000333. TGFB_receptor.
[Graphical view]
PANTHERiPTHR23255. PTHR23255. 1 hit.
PfamiPF01064. Activin_recp. 1 hit.
PF00069. Pkinase. 1 hit.
[Graphical view]
PRINTSiPR00653. ACTIVIN2R.
SUPFAMiSSF56112. SSF56112. 1 hit.
PROSITEiPS50011. PROTEIN_KINASE_DOM. 1 hit.
PS00108. PROTEIN_KINASE_ST. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

Q66T47-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MTAPWAALAL LWGSLCVGSG RGEAETRECI YYNANWELER TNQSGLERCE
60 70 80 90 100
GEQDKRLHCY ASWRNSSGTI ELVKKGCWLD DFNCYDRQEC VATEENPQVY
110 120 130 140 150
FCCCEGNFCN ERFTHLPEAG GPEVTYEPPP TAPTLLTVLA YSLLPIGGLS
160 170 180 190 200
LIVLLAFWMY RHRKPPYGHV DIHEDPGPPP PSPLVGLKPL QLLEIKARGR
210 220 230 240 250
FGCVWKAQLM NDFVAVKIFP LQDKQSWQSE REIFSTPGMK HENLLQFIAA
260 270 280 290 300
EKRGSNLEVE LWLITAFHDK GSLTDYLKGN IITWNELCHV AETMSRGLSY
310 320 330 340 350
LHEDVPWCRG EGHKPSIAHR DFKSKNVLLK SDLTAVLADF GLAVRFEPGK
360 370 380 390 400
PPGDTHGQVG TRRYMAPEVL EGAINFQRNA FLRIDMYAMG LVLWELVSRC
410 420 430 440 450
KAADGPVDEY MLPFEEEIGQ HPSLEELQEV VVHKKMRPAI KDHWLKHPGL
460 470 480 490 500
AQLCVTIEEC WDHDAEARLS AGCVEERVSL IRRSVNGTTS DCLVSLVTSV
510
TNVDLPPKES SI
Length:512
Mass (Da):57,693
Last modified:October 11, 2004 - v1
Checksum:i59A5A00239A92EAC
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AY705387 mRNA. Translation: AAU07920.1.
RefSeqiNP_001005350.1. NM_001005350.2.
UniGeneiSsc.42773.

Genome annotation databases

GeneIDi448845.
KEGGissc:448845.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AY705387 mRNA. Translation: AAU07920.1.
RefSeqiNP_001005350.1. NM_001005350.2.
UniGeneiSsc.42773.

3D structure databases

ProteinModelPortaliQ66T47.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi9823.ENSSSCP00000028777.

Proteomic databases

PaxDbiQ66T47.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi448845.
KEGGissc:448845.

Organism-specific databases

CTDi93.

Phylogenomic databases

eggNOGiKOG3653. Eukaryota.
ENOG410XS2Z. LUCA.
HOGENOMiHOG000231495.
HOVERGENiHBG054502.
InParanoidiQ66T47.
KOiK13596.

Family and domain databases

InterProiIPR000472. Activin_recp.
IPR011009. Kinase-like_dom.
IPR000719. Prot_kinase_dom.
IPR008271. Ser/Thr_kinase_AS.
IPR000333. TGFB_receptor.
[Graphical view]
PANTHERiPTHR23255. PTHR23255. 1 hit.
PfamiPF01064. Activin_recp. 1 hit.
PF00069. Pkinase. 1 hit.
[Graphical view]
PRINTSiPR00653. ACTIVIN2R.
SUPFAMiSSF56112. SSF56112. 1 hit.
PROSITEiPS50011. PROTEIN_KINASE_DOM. 1 hit.
PS00108. PROTEIN_KINASE_ST. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiAVR2B_PIG
AccessioniPrimary (citable) accession number: Q66T47
Entry historyi
Integrated into UniProtKB/Swiss-Prot: May 16, 2006
Last sequence update: October 11, 2004
Last modified: November 2, 2016
This is version 88 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.