Score = 92.4 bits (228), Expect = 8e-19, Method: Compositional matrix adjust.
Identities = 47/118 (39%), Positives = 78/118 (66%), Gaps = 4/118 (3%)
Query: 2 IVLEALILTSAVVCSLTGYTFWASKKGKDFSFLGPILFTSLIILILTSFMQMFFPLGSTS 61
+VL+A I+T+AV LT YT + +DF+ G LF L IL L F+++FF T
Sbjct: 123 LVLQAFIMTTAVFLGLTAYTL---QSKRDFTKFGAGLFAGLWILCLAGFLKLFF-YSETM 178
Query: 62 TAVYGGISALVFCGYIVYDTDNLIKRFTYDDYILASVTLYLDILNLFISILRVLRSSD 119
V + AL+FCG+I+YDT +L+ R + ++Y++A+++LY+DI+NLF+ +L+ L + +
Sbjct: 179 ELVLASLGALLFCGFIIYDTHSLMHRLSPEEYVIAAISLYMDIINLFLHLLKFLEAVN 236
Anti-apoptotic protein which can inhibit apoptosis induced by intrinsic and extrinsic apoptotic stimuli. Can modulate both capacitative Ca2+ entry and inositol 1,4,5-trisphosphate (IP3)-mediated Ca2+ release.
Links the unfolded protein response and programmed cell death and mediates mitochondrial-dependent apoptosis. Induces cell death and disruption of the mitochondrial transmembrane potential.
Anti-apoptotic protein which can inhibit apoptosis induced by intrinsic and extrinsic apoptotic stimuli. Can modulate both capacitative Ca2+ entry and inositol 1,4,5-trisphosphate (IP3)-mediated Ca2+ release.
GAAP (or transmembrane BAX inhibitor motif containing 4) is a regulator of apoptosis that is related to the BAX inhibitor (BI)-1 like family of small transmembrane proteins, which have been shown to have an antiapoptotic effect either by stimulating the antiapoptotic function of Bcl-2, a well-characterized oncogene, or by inhibiting the proapoptotic effect of Bax, another member of the Bcl-2 family. Human GAAP has been linked to the modulation of intracellular fluxes of Ca(2+), by suppressing influx from the extracellular medium and reducing release from intracellular stores. A viral homolog (vaccinia virus vGAAP) acts similar to its human counterpart in inhibiting apoptosis. Length = 233
>gnl|CDD|216251 pfam01027, Bax1-I, Inhibitor of apoptosis-promoting Bax1
Score = 85.3 bits (212), Expect = 8e-22
Identities = 46/115 (40%), Positives = 68/115 (59%), Gaps = 5/115 (4%)
Query: 2 IVLEALILTSAVVCSLTGYTFWASKKGKDFSFLGPILFTSLIILILTSFMQMFFPLGSTS 61
I+L+A + T+A+ L+ Y +D SFLG LF LI LI+ S + +F P + S
Sbjct: 95 IILQAFLGTAAIFGGLSLYALTT---KRDLSFLGGFLFAGLIGLIVASLVNIFLPSSALS 151
Query: 62 TAVYGGISALVFCGYIVYDTDNLIKRFTYDD-YILASVTLYLDILNLFISILRVL 115
I L+F G I+YDT + + DD YILA+++LYLD +NLF+ +LR+L
Sbjct: 152 L-AISAIGVLIFSGLILYDTQRIKEGGETDDYYILAALSLYLDFINLFLYLLRIL 205
Programmed cell-death involves a set of Bcl-2 family proteins, some of which inhibit apoptosis (Bcl-2 and Bcl-XL) and some of which promote it (Bax and Bak). Human Bax inhibitor, BI-1, is an evolutionarily conserved integral membrane protein containing multiple membrane-spanning segments predominantly localised to intracellular membranes. It has 6-7 membrane-spanning domains. The C termini of the mammalian BI-1 proteins are comprised of basic amino acids resembling some nuclear targeting sequences, but otherwise the predicted proteins lack motifs that suggest a function. As plant BI-1 appears to localise predominantly to the ER, we hypothesized that plant BI-1 could also regulate cell death triggered by ER stress. BI-1 appears to exert its effect through an interaction with calmodulin. Length = 205
Score = 69.5 bits (171), Expect = 8e-16
Identities = 39/121 (32%), Positives = 56/121 (46%), Gaps = 11/121 (9%)
Query: 2 IVLEALILTSAVVCSLTGYTFWASKKGKDFSFLGPILFTSLIILILTSFMQMFFPLGSTS 61
+ +A T+A G + + KD SFLG LF LI LI+ S F S
Sbjct: 94 SIAQAFFTTAAT---FGGLSLYGYTTKKDLSFLGSFLFMGLIGLIIASL-VNIFLQSSAL 149
Query: 62 TAVYGGISALVFCGYIVYDTDNLIKR-------FTYDDYILASVTLYLDILNLFISILRV 114
I L+F G I YDT + + Y D I+ +++LYLD +NLF+ +LR+
Sbjct: 150 QFAISAIGVLIFSGLIAYDTQRIKRMYEAGGGESGYKDAIMGALSLYLDFINLFLFLLRL 209
Query: 115 L 115
Sbjct: 210 F 210
This family is comprised of bacterial relatives of the mammalian members of the BAX inhibitor (BI)-1 like family of small transmembrane proteins, which have been shown to have an antiapoptotic effect either by stimulating the antiapoptotic function of Bcl-2, a well-characterized oncogene, or by inhibiting the proapoptotic effect of Bax, another member of the Bcl-2 family. In plants, BI-1 like proteins play a role in pathogen resistance. A characterized prokaryotic member, Escherichia coli YccA, has been shown to interact with ATP-dependent protease FtsH, which degrades abnormal membrane proteins as part of a quality control mechanism to keep the integrity of biological membranes. Length = 211
Score = 68.8 bits (169), Expect = 2e-15
Identities = 44/119 (36%), Positives = 68/119 (57%), Gaps = 5/119 (4%)
Query: 2 IVLEALILTSAVVCSLTGYTFWASKKGKDFSFLGPILFTSLIILILTSFMQMFFPLGSTS 61
I++ AL T+A+ L+ Y A KDFSFLG LF I+L+L + +F + + S
Sbjct: 92 IIMTALGGTAAIFFGLSAY---ALTTKKDFSFLGGFLFVGAIVLLLAAVANIFLQIPALS 148
Query: 62 TAVYGGISALVFCGYIVYDTDNLIKRFTYDDYILASVTLYLDILNLFISILRVLRSSDG 120
A+ L G+I+YDT +I +YI+A+V+LY+ I NLF+S+L +L + G
Sbjct: 149 LAISAAF-VLFSSGFILYDTSRIIHG-GETNYIMATVSLYVSIYNLFVSLLNLLGAFSG 205
A prokaryotic member of the BAX inhibitor (BI)-1 like family of small transmembrane proteins, Escherichia coli YccA, has been shown to interact with ATP-dependent protease FtsH, which degrades abnormal membrane proteins as part of a quality control mechanism to keep the integrity of biological membranes. Length = 205
>gnl|CDD|223742 COG0670, COG0670, Integral membrane protein, interacts with FtsH [General function prediction only]
Score = 65.9 bits (161), Expect = 2e-14
Identities = 44/116 (37%), Positives = 64/116 (55%), Gaps = 6/116 (5%)
Query: 2 IVLEALILTSAVVCSLTGYTFWASKKGKDFSFLGPILFTSLIILILTSFMQMFFPLGSTS 61
I+L AL T+ V LT Y A K DF FLG L L L+L+ + FF
Sbjct: 90 ILLRALGGTALVFFGLTVYALQARK---DFLFLGGPLMAGLGFLLLSFLLNTFF-YSPWL 145
Query: 62 TAVYGGISALVFCGYIVYDTDNLIKR--FTYDDYILASVTLYLDILNLFISILRVL 115
V + ++FCG+++YDT +I + +DYI A ++LYLDI+N+FI +L +L
Sbjct: 146 HLVAAAVGLVLFCGFLLYDTQLIIHKAEVGPEDYINACISLYLDIINIFIRLLTIL 201
Mammalian members of the BAX inhibitor (BI)-1 like family of small transmembrane proteins have been shown to have an antiapoptotic effect either by stimulating the antiapoptotic function of Bcl-2, a well-characterized oncogene, or by inhibiting the proapoptotic effect of Bax, another member of the Bcl-2 family. Their broad tissue distribution and high degree of conservation suggests an important regulatory role. This superfamily also contains the lifeguard(LFG)-like proteins and other subfamilies which appear to be related by common descent and also function as inhibitors of apoptosis. In plants, BI-1 like proteins play a role in pathogen resistance. A prokaryotic member, Escherichia coli YccA, has been shown to interact with ATP-dependent protease FtsH, which degrades abnormal membrane proteins as part of a quality control mechanism to keep the integrity of biological membranes. Length = 202
>gnl|CDD|198410 cd10428, LFG_like, Proteins similar to and including lifeguard (LFG), a putative regulator of apoptosis
Lifeguard (LFG) inhibits Fas-mediated apoptosis and interacts with the death receptor FasR/CD95/Apo1. LFG has been shown to interact with Bax and is supposed to be integral to cellular membranes such as the ER. A close homolog, PP1201 or RECS1, appears located in the Golgi compartment and also interacts with the Fas receptor CD95/Apo1. PP1201 is expressed in response to shear stress. Length = 217
Mammalian members of the BAX inhibitor (BI)-1 like family of small transmembrane proteins have been shown to have an antiapoptotic effect either by stimulating the antiapoptotic function of Bcl-2, a well-characterized oncogene, or by inhibiting the proapoptotic effect of Bax, another member of the Bcl-2 family. Their broad tissue distribution and high degree of conservation suggests an important regulatory role. In plants, BI-1 like proteins play a role in pathogen resistance. Length = 213
>gnl|CDD|198413 cd10431, GHITM, Growth-hormone inducible transmembrane protein
Score = 50.5 bits (121), Expect = 2e-08
Identities = 36/128 (28%), Positives = 68/128 (53%), Gaps = 18/128 (14%)
Query: 2 IVLEALILTSAVVCSLTGYTFWASKKGKDFSFLGPILFTSLIILILTSFMQMFFPLGST- 60
+++ A + T+ +V L+ T A + F ++G L L ++ +S MF P +
Sbjct: 134 LLIRAALYTAGIVGGLS--TVAACAPSEKFLYMGGPLAIGLGVVFASSLGSMFLPPTTAL 191
Query: 61 -----STAVYGGISALVFCGYIVYDTDNLIKR--------FTYDDYILASVTLYLDILNL 107
S ++YGG+ ++F G+++YDT +IKR D I AS+++Y+D +N+
Sbjct: 192 GAGLYSVSLYGGL--VLFGGFLLYDTQKIIKRAETHPLYGVRKYDPINASMSIYMDTINI 249
Query: 108 FISILRVL 115
FI ++ +L
Sbjct: 250 FIRLVTIL 257
GHITM appears to be ubiquitiously expressed in mammalian cells and expression has also been observed in various cancer cell lines. A cytoprotective function has been suggested. It is closely related to the BAX inhibitor (BI)-1 like family of small transmembrane proteins, which have been shown to have an antiapoptotic effect. Length = 264
Mammalian members of this family of small transmembrane proteins have been shown to have an antiapoptotic effect either by stimulating the antiapoptotic function of Bcl-2, a well characterized oncogene, or inhibiting the proapoptotic effect of Bax, another member of the Bcl-2 family. Their broad tissue distribution and high degree of conservation suggests an important regulatory role. In plants, BI-1 like proteins play a role in pathogen resistance. A prokaryotic member, E.coli YccA, has been shown to interact with ATP-dependent protease FtsH, which degrades abnormal membrane proteins as part of a quality control mechanism to keep the integrity of biological membranes.
>PF01027 Bax1-I: Inhibitor of apoptosis-promoting Bax1; InterPro: IPR006214 Programmed cell-death involves a set of Bcl-2 family proteins, some of which inhibit apoptosis (Bcl-2 and Bcl-XL) and some of which promote it (Bax and Bak) []
Human Bax inhibitor, BI-1, is an evolutionarily conserved integral membrane protein containing multiple membrane-spanning segments predominantly localised to intracellular membranes. It has 6-7 membrane-spanning domains. The C termini of the mammalian BI-1 proteins are comprised of basic amino acids resembling some nuclear targeting sequences, but otherwise the predicted proteins lack motifs that suggest a function. As plant BI-1 appears to localise predominantly to the ER, we hypothesized that plant BI-1 could also regulate cell death triggered by ER stress []. BI-1 appears to exert its effect through an interaction with calmodulin [].
