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GeneQ18033483· pop 8· linked from 3 articles

Also known as AMAP2, CENTB3, DDEF2, PAG3, PAP, Pap-alpha, SHAG1, ArfGAP with SH3 domain, ankyrin repeat and PH domain 2

Arf-GAP with SH3 domain, ANK repeat and PH domain-containing protein 2 is a protein that in humans is encoded by the ASAP2 gene.

Gene data

ASAP2
Name
ArfGAP with SH3 domain, ankyrin repeat and PH domain 2
Type
protein-coding
Aliases
AMAP2, CENTB3, DDEF2, PAG3, PAP, Pap-alpha, SHAG1

This gene encodes a multidomain protein containing an N-terminal alpha-helical region with a coiled-coil motif, followed by a pleckstrin homology (PH) domain, an Arf-GAP domain, an ankyrin homology region, a proline-rich region, and a C-terminal Src homology 3 (SH3) domain. The protein localizes in the Golgi apparatus and at the plasma membrane, where it colocalizes with protein tyrosine kinase 2-beta (PYK2). The encoded protein forms a stable complex with PYK2 in vivo. This interaction appears to be mediated by binding of its SH3 domain to the C-terminal proline-rich domain of PYK2. The encoded protein is tyrosine phosphorylated by activated PYK2. It has catalytic activity for class I and II ArfGAPs in vitro, and can bind the class III Arf ARF6 without immediate GAP activity. The encoded protein is believed to function as an ARF GAP that controls ARF-mediated vesicle budding when recruited to Golgi membranes. In addition, it functions as a substrate and downstream target for PYK2 and SRC, a pathway that may be involved in the regulation of vesicular transport. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2008].

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Gene · Ensembl

ArfGAP with SH3 domain, ankyrin repeat and PH domain 2

Symbol
ASAP2
Biotype
Protein coding
Organism
Homo sapiens
Location
2:9,206,602-9,405,683
Strand
Forward (+)
Assembly
GRCh38
View on Ensembl →

via Ensembl · EMBL-EBI

Wikidata facts

Image
Protein DDEF2 PDB 1dcq.png
Show 5 more facts
HomoloGene ID
2888
genomic end
9545812
genomic start
9346894
cytogenetic location
2p25.1|2p24
Sources (3)

via Wikidata · CC0

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Article

3 sections
Contents
  • Interactions
  • References
  • Further reading

Arf-GAP with SH3 domain, ANK repeat and PH domain-containing protein 2 is a protein that in humans is encoded by the ASAP2 gene.

This gene encodes a multidomain protein containing an N-terminal alpha-helical region with a coiled-coil motif, followed by a pleckstrin homology (PH) domain, an Arf-GAP domain, an ankyrin homology region, a proline-rich region, and a C-terminal Src homology 3 (SH3) domain. The protein localizes in the Golgi apparatus and at the plasma membrane, where it colocalizes with protein tyrosine kinase 2-beta (PYK2). The encoded protein forms a stable complex with PYK2 in vivo. This interaction appears to be mediated by binding of its SH3 domain to the C-terminal proline-rich domain of PYK2. The encoded protein is tyrosine phosphorylated by activated PYK2. In vitro it shows strong GTPase-activating protein (GAP) activity towards the small GTPases ADP-ribosylation factor (ARF) 1 and ARF5 and weak activity towards ARF6. The encoded protein is believed to function as an ARF GAP that controls ARF-mediated vesicle budding when recruited to Golgi membranes. In addition, it functions as a substrate and downstream target for PYK2 and SRC, a pathway that may be involved in the regulation of vesicular transport.

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