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Q95126

- AVR2B_BOVIN

UniProt

Q95126 - AVR2B_BOVIN

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Protein

Activin receptor type-2B

Gene
ACVR2B
Organism
Bos taurus (Bovine)
Status
Reviewed - 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.

Catalytic activityi

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

Cofactori

Magnesium or manganese By similarity.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Binding sitei217 – 2171ATP By similarity
Active sitei321 – 3211Proton acceptor By similarity

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Nucleotide bindingi196 – 2049ATP By similarity

GO - Molecular functioni

  1. ATP binding Source: UniProtKB-KW
  2. metal ion binding Source: UniProtKB-KW
  3. receptor signaling protein serine/threonine kinase activity Source: InterPro
  4. transforming growth factor beta-activated receptor activity Source: InterPro
Complete GO annotation...

Keywords - Molecular functioni

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

Keywords - Ligandi

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

Enzyme and pathway databases

BRENDAi2.7.10.2. 908.

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
OrganismiBos taurus (Bovine)
Taxonomic identifieri9913 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCetartiodactylaRuminantiaPecoraBovidaeBovinaeBos
ProteomesiUP000009136: Unplaced

Subcellular locationi

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Topological domaini19 – 137119Extracellular Reviewed predictionAdd
BLAST
Transmembranei138 – 15821Helical; Reviewed predictionAdd
BLAST
Topological domaini159 – 512354Cytoplasmic Reviewed predictionAdd
BLAST

GO - Cellular componenti

  1. integral component of membrane Source: UniProtKB-KW
  2. plasma membrane Source: UniProtKB-SubCell
Complete GO annotation...

Keywords - Cellular componenti

Cell membrane, Membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Signal peptidei1 – 1818 Reviewed predictionAdd
BLAST
Chaini19 – 512494Activin receptor type-2BPRO_0000024403Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Disulfide bondi29 ↔ 59 By similarity
Glycosylationi42 – 421N-linked (GlcNAc...) Reviewed prediction
Disulfide bondi49 ↔ 77 By similarity
Glycosylationi65 – 651N-linked (GlcNAc...) Reviewed prediction
Disulfide bondi84 ↔ 103 By similarity
Disulfide bondi90 ↔ 102 By similarity
Disulfide bondi104 ↔ 109 By similarity

Post-translational modificationi

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

Keywords - PTMi

Disulfide bond, Glycoprotein, Phosphoprotein

Proteomic databases

PRIDEiQ95126.

Interactioni

Subunit structurei

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

Structurei

3D structure databases

ProteinModelPortaliQ95126.
SMRiQ95126. Positions 24-117, 190-484.

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Domaini190 – 480291Protein kinaseAdd
BLAST

Sequence similaritiesi

Keywords - Domaini

Signal, Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiCOG0515.
HOGENOMiHOG000231495.
HOVERGENiHBG054502.
InParanoidiQ95126.
KOiK13596.

Family and domain databases

InterProiIPR000472. Activin_rcpt.
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.

Q95126-1 [UniParc]FASTAAdd to Basket

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MTAPWAALAL LWGSLCAGSG RGEAETRECI YYNANWELER TNQSGLERCE    50
GERDKRLHCY ASWRNSSGTI ELVKKGCWLD DFNCYDRQEC VATEENPQVY 100
FCCCEGNFCN ERFTHLPEAG GPEVTYEPPP TAPTLLTVLA YSLLPVGGLS 150
LIALLAFWMY RHRKPPYGHA DIHEDPGPPP PSPLVGLKPL QLLEIKARGR 200
FGCVWKAQLM NDFVAVKIFP LQDKQSWQSE REIFSTPGMK HENLLQFIAA 250
EKRGSSLEAE LWLITAFHDK GSLTDYLKGN IITWNELCHV AETMSRGLSY 300
LHEDVPWCRG EGHKPSIAHR DFKSKNVLLK SDLTAVLADF GLAVRFEPGK 350
PPGDTHGQVG TRRYMAPEVL EGAINFQRDA FLRIDMYAMG LVLWELVSRC 400
KAADGPVDEY MLPFEEEIGQ HPSLEELQEV VVHKKMRPAI KDHWLKHPGL 450
AQLCVTIEEC WDHDAEARLS AGCVEERVSL IRRSVNGTTS DCLVSLVTSV 500
TNVDLPPKES SI 512
Length:512
Mass (Da):57,569
Last modified:February 1, 1997 - v1
Checksum:iD8E14D465B3EEF04
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
U57707 mRNA. Translation: AAC02647.1.
RefSeqiNP_776920.1. NM_174495.2.
UniGeneiBt.4990.

Genome annotation databases

GeneIDi282131.
KEGGibta:282131.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
U57707 mRNA. Translation: AAC02647.1 .
RefSeqi NP_776920.1. NM_174495.2.
UniGenei Bt.4990.

3D structure databases

ProteinModelPortali Q95126.
SMRi Q95126. Positions 24-117, 190-484.
ModBasei Search...
MobiDBi Search...

Proteomic databases

PRIDEi Q95126.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

GeneIDi 282131.
KEGGi bta:282131.

Organism-specific databases

CTDi 93.

Phylogenomic databases

eggNOGi COG0515.
HOGENOMi HOG000231495.
HOVERGENi HBG054502.
InParanoidi Q95126.
KOi K13596.

Enzyme and pathway databases

BRENDAi 2.7.10.2. 908.

Miscellaneous databases

NextBioi 20805966.

Family and domain databases

InterProi IPR000472. Activin_rcpt.
IPR011009. Kinase-like_dom.
IPR000719. Prot_kinase_dom.
IPR008271. Ser/Thr_kinase_AS.
IPR000333. TGFB_receptor.
[Graphical view ]
PANTHERi PTHR23255. PTHR23255. 1 hit.
Pfami PF01064. Activin_recp. 1 hit.
PF00069. Pkinase. 1 hit.
[Graphical view ]
PRINTSi PR00653. ACTIVIN2R.
SUPFAMi SSF56112. SSF56112. 1 hit.
PROSITEi PS50011. PROTEIN_KINASE_DOM. 1 hit.
PS00108. PROTEIN_KINASE_ST. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. "Bovine activin receptor type IIB messenger ribonucleic acid displays alternative splicing involving a sequence homologous to Src-homology 3 domain binding sites."
    Ethier J.-F., Lussier J.G., Silversides D.W.
    Endocrinology 138:2425-2434(1997) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [MRNA].
    Tissue: Corpus luteum and Pituitary.

Entry informationi

Entry nameiAVR2B_BOVIN
AccessioniPrimary (citable) accession number: Q95126
Entry historyi
Integrated into UniProtKB/Swiss-Prot: December 1, 2000
Last sequence update: February 1, 1997
Last modified: September 3, 2014
This is version 114 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

External Data

Dasty 3

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