Switch #:
SWTI000545
Switch type:
Binary
Switch subtype:
Pre-translational

Description:
Alternative splicing removes the di-leucine motif of Isoform 4 of VPS10 domain-containing receptor SorCS1 (SORCS1), abrogating binding to AP-2 complex subunit sigma (AP2S1). Human and mouse have completely different C-termini for SorCS1a (also known as Isoform 4 of VPS10 domain-containing receptor SorCS1 (SORCS1)), with only the human splice variant containing the motif.

Participants:
(1) Isoform 4 of VPS10 domain-containing receptor SorCS1 (SORCS1)
(2) AP-2 complex subunit sigma (AP2S1)

Interactions
Interaction #1 SORCS1 - AP2S1

Interfaces
(1) ELM:TRG_LysEnd_APsAcLL_2 motif (1136DLFLL1140) in Isoform 4 of VPS10 domain-containing receptor SorCS1 (SORCS1)
(2) Clathrin adaptor complex small chain (1-142) in AP-2 complex subunit sigma (AP2S1)

Interaction Regulation
Alternative splicing Abrogation of the Isoform 4 of VPS10 domain-containing receptor SorCS1 (SORCS1) TRG_LysEnd_APsAcLL_2 motif - AP-2 complex subunit sigma (AP2S1) Clathrin adaptor complex small chain interaction

References

(1) Different motifs regulate trafficking of SorCS1 isoforms.
Nielsen et al. Traffic (2008)




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