ITFG2_PONAB
ID ITFG2_PONAB Reviewed; 433 AA.
AC Q5RBH8;
DT 29-MAY-2007, integrated into UniProtKB/Swiss-Prot.
DT 21-DEC-2004, sequence version 1.
DT 25-MAY-2022, entry version 61.
DE RecName: Full=KICSTOR complex protein ITFG2 {ECO:0000305};
DE AltName: Full=Integrin-alpha FG-GAP repeat-containing protein 2 {ECO:0000250|UniProtKB:Q969R8};
GN Name=ITFG2 {ECO:0000250|UniProtKB:Q969R8};
OS Pongo abelii (Sumatran orangutan) (Pongo pygmaeus abelii).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae;
OC Pongo.
OX NCBI_TaxID=9601;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC TISSUE=Brain cortex;
RG The German cDNA consortium;
RL Submitted (NOV-2004) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: As part of the KICSTOR complex functions in the amino acid-
CC sensing branch of the TORC1 signaling pathway. Recruits, in an amino
CC acid-independent manner, the GATOR1 complex to the lysosomal membranes
CC and allows its interaction with GATOR2 and the RAG GTPases. Functions
CC upstream of the RAG GTPases and is required to negatively regulate
CC mTORC1 signaling in absence of amino acids. In absence of the KICSTOR
CC complex mTORC1 is constitutively localized to the lysosome and
CC activated. The KICSTOR complex is also probably involved in the
CC regulation of mTORC1 by glucose. {ECO:0000250|UniProtKB:Q969R8}.
CC -!- SUBUNIT: Part of the KICSTOR complex composed of KPTN, ITFG2, KICS2 and
CC SZT2. SZT2 probably serves as a link between the other three proteins
CC in the KICSTOR complex and may mediate the direct interaction with the
CC GATOR complex via GATOR1. The KICSTOR complex interacts directly with
CC the GATOR1 complex and most probably indirectly with the GATOR2 complex
CC in an amino acid-independent manner. {ECO:0000250|UniProtKB:Q969R8}.
CC -!- SUBCELLULAR LOCATION: Lysosome membrane {ECO:0000250|UniProtKB:Q969R8}.
CC Note=Localization to lysosomes is amino acid-independent.
CC {ECO:0000250|UniProtKB:Q969R8}.
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DR EMBL; CR858670; CAH90882.1; -; mRNA.
DR RefSeq; NP_001125504.1; NM_001132032.1.
DR AlphaFoldDB; Q5RBH8; -.
DR STRING; 9601.ENSPPYP00000004733; -.
DR GeneID; 100172413; -.
DR KEGG; pon:100172413; -.
DR CTD; 55846; -.
DR eggNOG; ENOG502QUBC; Eukaryota.
DR HOGENOM; CLU_021730_0_0_1; -.
DR InParanoid; Q5RBH8; -.
DR Proteomes; UP000001595; Unplaced.
DR GO; GO:0140007; C:KICSTOR complex; ISS:UniProtKB.
DR GO; GO:0005765; C:lysosomal membrane; ISS:UniProtKB.
DR GO; GO:0034198; P:cellular response to amino acid starvation; ISS:UniProtKB.
DR GO; GO:0042149; P:cellular response to glucose starvation; ISS:UniProtKB.
DR GO; GO:1904262; P:negative regulation of TORC1 signaling; ISS:UniProtKB.
DR Gene3D; 2.130.10.130; -; 1.
DR InterPro; IPR028994; Integrin_alpha_N.
DR InterPro; IPR031793; KICSTOR_ITFG2.
DR InterPro; IPR036322; WD40_repeat_dom_sf.
DR PANTHER; PTHR16317; PTHR16317; 1.
DR Pfam; PF15907; Itfg2; 1.
DR SUPFAM; SSF50978; SSF50978; 1.
DR SUPFAM; SSF69318; SSF69318; 1.
PE 2: Evidence at transcript level;
KW Lysosome; Membrane; Phosphoprotein; Reference proteome; Repeat.
FT CHAIN 1..433
FT /note="KICSTOR complex protein ITFG2"
FT /id="PRO_0000289294"
FT REPEAT 19..48
FT /note="FG-GAP 1; atypical"
FT REPEAT 126..155
FT /note="FG-GAP 2; atypical"
FT MOD_RES 104
FT /note="Phosphoserine"
FT /evidence="ECO:0000250|UniProtKB:Q969R8"
FT MOD_RES 220
FT /note="Phosphoserine"
FT /evidence="ECO:0000250|UniProtKB:Q969R8"
SQ SEQUENCE 433 AA; 47880 MW; 3E8EFF8D286B4BA3 CRC64;
MRSVSYVQRV ALEFSGSLFP HAICLGDVDN DTLNELVVGD TSGKVSVYKN DDSRPWLTCS
CQGMLTCVGV GDVCNKGKNL LVAVSAEGWF HLFDLTPAKV LDASGHHETL IGEEQRPVFK
QHIPANTKVM LISDIDGDGC RELVVGYTDR VVRAFRWEEL GEGPEHLTGQ LVSLKKWMLE
GQVDSLSVTL GPLGLPELMV SQPGCAYAIL LCTWKKDTGS PPASEGPMDG SRETPAARDV
VLHQTSGRIH NKNVSTHLTG NIKQGHGTES SGSGLFALCT LDGTLKLMEE MEEADKLLWS
VQVDHQLFAL EKLDVTGNGH EEVVACAWDG QTYIIDHNRT VVRFQVDENI RAFCAGLYAC
KEGRNSPCLV YVTFNQKIYV YWEVQLERME STNLVKLLET KPEYHSLLQE LGVDPDDLPV
TRALLHQTLY HPD