Descriptions

RIAM is a multidomain scaffold protein that is regulated by recruitment from the cytosol to the plasma membrane. RIAM is autoinhibited by an intramolecular interaction between the inhibitory segment (IN) region and the RAS-association (RA) region, which inhibits its association with RAP1. Phosphorylation of Tyr45 in the IN segment by focal adhesion kinase (FAK) releases this autoinhibition, facilitating translocation to the plasma membrane and enhancing integrin-mediated cell adhesion.

Autoinhibitory domains (AIDs)

Target domain

179-266 (RAS-association, RA)

Relief mechanism

PTM

Assay

Deletion assay, Mutagenesis experiment, Structural analysis

Accessory elements

No accessory elements

Autoinhibited structure

Activated structure

2 structures for B1AYC9

Entry ID Method Resolution Chain Position Source
6E31 X-ray 240 A A 27-437 PDB
AF-B1AYC9-F1 Predicted AlphaFoldDB

No variants for B1AYC9

Variant ID(s) Position Change Description Diseaes Association Provenance
No variants for B1AYC9

No associated diseases with B1AYC9

3 regional properties for B1AYC9

Type Name Position InterPro Accession
domain Ras-associating domain 179 - 266 IPR000159
domain Pleckstrin homology domain 313 - 424 IPR001849
domain APBB1IP, PH domain 310 - 431 IPR039665

Functions

Description
EC Number
Subcellular Localization
PANTHER Family PTHR11243 GROWTH FACTOR RECEPTOR-BOUND PROTEIN
PANTHER Subfamily PTHR11243:SF14 AMYLOID BETA A4 PRECURSOR PROTEIN-BINDING FAMILY B MEMBER 1-INTERACTING PROTEIN
PANTHER Protein Class scaffold/adaptor protein
PANTHER Pathway Category No pathway information available

2 GO annotations of cellular component

Name Definition
cytosol The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
plasma membrane The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

No GO annotations of molecular function

Name Definition
No GO annotations for molecular function

1 GO annotations of biological process

Name Definition
signal transduction The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.

No homologous proteins in AiPD

UniProt AC Gene Name Protein Name Species Evidence Code
No homologous proteins
10 20 30 40 50 60
MGESNEDIDQ MFSTLLGEMD LLTQSLGVDT LPPPDPNPPR EEFNYTVGFK DLNESLNALE
70 80 90 100 110 120
DQDLDALMAD LVADISEAEQ RTIQAQKESS QNQDRFALLR ASDGQGTASG GYGASAAAID
130 140 150 160 170 180
VSHHEEALPP PPVEPMLDLL PPPPPPPPPE LLSKEEEEAK AKADKIKLAL EKLKEAKVKK
190 200 210 220 230 240
LVVKVHMDDS STKSLMVDER QLARDVLDNL FEKTHCDCNV DWCLYEIYPE LQIERVFEDH
250 260 270 280 290 300
ENVVEVLSDW TRDTENKVLF LEKEERYAVF KNPQNFYLDN KGKKENKETN EKMNAKNKEY
310 320 330 340 350 360
LLEESFCGTS IIVPELEGAL YLKEDGKKSW KRRYFLLRAS GIYYVPKGKT KTSRDLACFI
370 380 390 400 410 420
QFENVNIYYG IQCKMKYKAP TDHCFVLKHP QIQKESQYIK YLCCDDARTL SQWVMGIRIA
430 440 450 460 470 480
KYGKTLYDNY QRAVARAGLA SRWTNLGTVG TPMPAQPSTV SSGLKTGTSQ PNGQMPQAIP
490 500 510 520 530 540
SAGPPLQEAQ TQIETTKDEK QGLGNHSPGA TRENHRPKSS LPPPPPPVRR SSDTCGSPAL
550 560 570 580 590 600
PSKVKGPGTC TFPHPPENFL PPPPPPPPEE DNSGLLPPPP PPPYLEEPPD FVPPPPPPAA
610 620 630 640 650 660
VEDSALPPPP PPPPCLSQEI TKSSPLPPKK PLVPPKRQEN QGLPGAPGNS EQDFMSDLMK
ALQKKRGNIP