Descriptions

Plexins are a large family of cell surface receptors for the axon guidance molecules semaphorins. Semaphorin-plexin signaling is essential for the regulation of neuronal development and other processes. Dysfunction in plexin pathways has been implicated in various diseases including neurological disorders and cancer. <br> Plexins are transmembrane proteins with a multidomain extracellular region that contains an N-terminal Sema domain. Before semaphorin binding, Plexin is an inactive monomer or dimer in which the RapGAP activity is autoinhibited. Binding of semaphorin to the Sema domain of plexin leads to activation of its cytoplasmic region, which relays the signal to downstream pathways. Mouse Plexin-A3 (P70208) possesses a segment preceding C1 domain and RDB domain as autoinhibitory elements.

Autoinhibitory domains (AIDs)

Target domain

1275-1809 (Plexin, cytoplasmic RasGAP domain)

Relief mechanism

Partner binding

Assay

Target domain

1275-1809 (Plexin, cytoplasmic RasGAP domain)

Relief mechanism

Partner binding

Assay

Accessory elements

No accessory elements

Autoinhibited structure

Activated structure

3 structures for B2RXS4

Entry ID Method Resolution Chain Position Source
5E6P X-ray 321 A A 1226-1842 PDB
7KDC X-ray 310 A C/D 1463-1565 PDB
AF-B2RXS4-F1 Predicted AlphaFoldDB

96 variants for B2RXS4

Variant ID(s) Position Change Description Diseaes Association Provenance
rs252475511 14 T>M No EVA
rs864299025 26 E>G No EVA
rs1132540772 53 A>E No EVA
rs49880590 177 H>N No EVA
rs265917866 271 D>V No EVA
rs3389387900 289 G>S No EVA
rs242209047 290 A>T No EVA
rs3389387845 290 A>V No EVA
rs3389381213 307 G>R No EVA
rs3389332752 323 K>T No EVA
rs3389351777 345 K>N No EVA
rs252614717 383 A>T No EVA
rs3389391383 386 V>A No EVA
rs864284746 396 A>P No EVA
rs3389382067 412 T>N No EVA
rs3389380211 442 I>F No EVA
rs3389397328 442 I>N No EVA
rs3389381172 480 C>Y No EVA
rs3389381227 497 C>S No EVA
rs3389332692 498 T>I No EVA
rs3389380240 507 E>* No EVA
rs3389380240 507 E>K No EVA
rs3389376442 557 C>W No EVA
rs3389372729 557 C>Y No EVA
rs3389377526 562 S>L No EVA
rs3389372690 578 S>P No EVA
rs3389397376 600 L>F No EVA
rs3389387878 627 L>P No EVA
rs3389382097 637 W>L No EVA
rs3389397336 637 W>R No EVA
rs3389391346 655 P>T No EVA
rs3389362865 661 R>C No EVA
rs3389351699 688 T>S No EVA
rs3389300057 696 T>N No EVA
rs3389391353 711 F>S No EVA
rs3389375376 725 F>Y No EVA
rs3389351763 729 K>N No EVA
rs50813147 732 H>Y No EVA
rs3389382028 735 N>K No EVA
rs864281592 749 K>E No EVA
rs3389362836 791 V>L No EVA
rs31808964 798 N>S No EVA
rs3389397341 801 S>Y No EVA
rs3406382563 817 P>A No EVA
rs3406524078 818 L>* No EVA
rs3389377575 830 N>K No EVA
rs3389381203 842 T>I No EVA
rs3389372664 905 P>S No EVA
rs3389387848 909 P>S No EVA
rs3389385976 935 L>V No EVA
rs3551929684 970 G>S No EVA
rs3389385939 1041 R>L No EVA
rs3389381195 1053 N>I No EVA
rs3389332696 1055 T>N No EVA
rs3389397381 1187 V>M No EVA
rs3389377562 1200 V>M No EVA
rs3389379828 1218 V>A No EVA
rs3389375436 1230 Q>* No EVA
rs3389397371 1266 D>Y No EVA
rs3389375392 1293 S>T No EVA
rs3389351712 1307 D>N No EVA
rs3552050949 1315 I>M No EVA
rs3551881103 1315 I>V No EVA
rs3389397346 1356 S>T No EVA
rs3389397389 1360 V>A No EVA
rs3389344942 1441 V>M No EVA
rs3389385893 1450 Y>C No EVA
rs3389332709 1464 Y>C No EVA
rs3389344925 1465 A>T No EVA
rs3389391370 1483 V>D No EVA
rs3389379866 1483 V>I No EVA
rs3389382032 1486 L>F No EVA
rs3389377533 1500 D>A No EVA
rs3389387841 1501 Q>H No EVA
rs3389332700 1525 S>C No EVA
rs3389332700 1525 S>F No EVA
rs3404834559 1536 T>P No EVA
rs3389379874 1539 R>W No EVA
rs3389332779 1540 E>D No EVA
rs3389385964 1541 G>S No EVA
rs3389344853 1549 L>Q No EVA
rs3389376445 1595 L>S No EVA
rs3389351727 1597 R>W No EVA
rs3406382565 1613 K>T No EVA
rs3389376490 1615 K>I No EVA
rs3389387846 1656 P>A No EVA
rs3389332758 1684 K>N No EVA
rs3389375433 1712 V>L No EVA
rs3406382589 1724 M>V No EVA
rs3389377485 1739 P>S No EVA
rs3389387816 1751 T>I No EVA
rs3389377501 1767 V>L No EVA
rs3389376436 1793 V>A No EVA
rs3389300088 1806 Y>* No EVA
rs3404834551 1814 E>V No EVA
rs3389377511 1826 F>V No EVA

No associated diseases with B2RXS4

8 regional properties for B2RXS4

Type Name Position InterPro Accession
domain Dbl homology (DH) domain 23 - 214 IPR000219
domain DEP domain 390 - 464 IPR000591-1
domain DEP domain 492 - 566 IPR000591-2
conserved_site Guanine-nucleotide dissociation stimulator, CDC24, conserved site 162 - 187 IPR001331
domain PDZ domain 592 - 674 IPR001478-1
domain PDZ domain 677 - 749 IPR001478-2
domain Pleckstrin homology domain 245 - 363 IPR001849
domain PREX2, DEP domain 1 382 - 462 IPR037367

Functions

Description
EC Number
Subcellular Localization
  • Cell membrane ; Single-pass type I membrane protein
PANTHER Family
PANTHER Subfamily
PANTHER Protein Class
PANTHER Pathway Category No pathway information available

3 GO annotations of cellular component

Name Definition
collagen-containing extracellular matrix An extracellular matrix consisting mainly of proteins (especially collagen) and glycosaminoglycans (mostly as proteoglycans) that provides not only essential physical scaffolding for the cellular constituents but can also initiate crucial biochemical and biomechanical cues required for tissue morphogenesis, differentiation and homeostasis. The components are secreted by cells in the vicinity and form a sheet underlying or overlying cells such as endothelial and epithelial cells.
plasma membrane The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
semaphorin receptor complex A stable binary complex of a neurophilin and a plexin, together forming a functional semaphorin receptor.

1 GO annotations of molecular function

Name Definition
semaphorin receptor activity Combining with a semaphorin, and transmitting the signal from one side of the membrane to the other to initiate a change in cell activity.

16 GO annotations of biological process

Name Definition
brain development The process whose specific outcome is the progression of the brain over time, from its formation to the mature structure. Brain development begins with patterning events in the neural tube and ends with the mature structure that is the center of thought and emotion. The brain is responsible for the coordination and control of bodily activities and the interpretation of information from the senses (sight, hearing, smell, etc.).
excitatory synapse assembly The aggregation, arrangement and bonding together of a set of components to form an excitatory synapse.
homophilic cell adhesion via plasma membrane adhesion molecules The attachment of a plasma membrane adhesion molecule in one cell to an identical molecule in an adjacent cell.
negative regulation of cell adhesion Any process that stops, prevents, or reduces the frequency, rate or extent of cell adhesion.
neural tube closure The last step in the formation of the neural tube, where the paired neural folds are brought together and fuse at the dorsal midline.
neuroblast proliferation The expansion of a neuroblast population by cell division. A neuroblast is any cell that will divide and give rise to a neuron.
positive regulation of axonogenesis Any process that activates or increases the frequency, rate or extent of axonogenesis.
positive regulation of neuron projection development Any process that increases the rate, frequency or extent of neuron projection development. Neuron projection development is the process whose specific outcome is the progression of a neuron projection over time, from its formation to the mature structure. A neuron projection is any process extending from a neural cell, such as axons or dendrites (collectively called neurites).
positive regulation of translation Any process that activates or increases the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of proteins by the translation of mRNA or circRNA.
regulation of cell migration Any process that modulates the frequency, rate or extent of cell migration.
regulation of cell shape Any process that modulates the surface configuration of a cell.
regulation of GTPase activity Any process that modulates the rate of GTP hydrolysis by a GTPase.
regulation of neuron migration Any process that modulates the frequency, rate or extent of neuron migration.
regulation of protein phosphorylation Any process that modulates the frequency, rate or extent of addition of phosphate groups into an amino acid in a protein.
semaphorin-plexin signaling pathway The series of molecular signals generated as a consequence of a semaphorin receptor (composed of a plexin and a neurophilin) binding to a semaphorin ligand.
semaphorin-plexin signaling pathway involved in axon guidance Any semaphorin-plexin signaling pathway that is involved in axon guidance.

27 homologous proteins in AiPD

UniProt AC Gene Name Protein Name Species Evidence Code
Q769I5 MET Hepatocyte growth factor receptor Bos taurus (Bovine) PR
A0M8S8 MET Hepatocyte growth factor receptor Felis catus (Cat) (Felis silvestris catus) PR
Q04912 MST1R Macrophage-stimulating protein receptor Homo sapiens (Human) EV
P08581 MET Hepatocyte growth factor receptor Homo sapiens (Human) EV
O43157 PLXNB1 Plexin-B1 Homo sapiens (Human) EV SS
Q9HCM2 PLXNA4 Plexin-A4 Homo sapiens (Human) SS
O75051 PLXNA2 Plexin-A2 Homo sapiens (Human) SS
P51805 PLXNA3 Plexin-A3 Homo sapiens (Human) SS
Q9UIW2 PLXNA1 Plexin-A1 Homo sapiens (Human) EV SS
Q9ULL4 PLXNB3 Plexin-B3 Homo sapiens (Human) SS
O15031 PLXNB2 Plexin-B2 Homo sapiens (Human) SS
Q62190 Mst1r Macrophage-stimulating protein receptor Mus musculus (Mouse) SS
P16056 Met Hepatocyte growth factor receptor Mus musculus (Mouse) PR
P70206 Plxna1 Plexin-A1 Mus musculus (Mouse) EV SS
P70207 Plxna2 Plexin-A2 Mus musculus (Mouse) SS
Q3UH93 Plxnd1 Plexin-D1 Mus musculus (Mouse) SS
Q80UG2 Plxna4 Plexin-A4 Mus musculus (Mouse) SS
Q8CJH3 Plxnb1 Plexin-B1 Mus musculus (Mouse) SS
Q9QY40 Plxnb3 Plexin-B3 Mus musculus (Mouse) SS
Q9QZC2 Plxnc1 Plexin-C1 Mus musculus (Mouse) SS
P70208 Plxna3 Plexin-A3 Mus musculus (Mouse) EV SS
Q2QLE0 MET Hepatocyte growth factor receptor Sus scrofa (Pig) PR
P97523 Met Hepatocyte growth factor receptor Rattus norvegicus (Rat) PR
D3ZPX4 Plxna3 Plexin-A3 Rattus norvegicus (Rat) SS
D3ZLH5 Plxnb3 Plexin-B3 Rattus norvegicus (Rat) SS
Q6BEA0 plxna4 Plexin-A4 Danio rerio (Zebrafish) (Brachydanio rerio) SS
B0S5N4 plxna3 Plexin A3 Danio rerio (Zebrafish) (Brachydanio rerio) SS
10 20 30 40 50 60
MALPLWALTF LGLTGLGLSL RSRKPESFRS ETELNHLAVD EVTGVVYVGA VNALYQLSAD
70 80 90 100 110 120
LHVQQHVVTG PFMDNKKCTP PIEASQCHEA VLTDNFNQLL LLDPPGKRLV ECGSLFKGIC
130 140 150 160 170 180
ALRAMSNISV RLFYEDGSGE KSFVASNDER VATVGLVTST RPDGERVLFV GKGNGPHDNG
190 200 210 220 230 240
IIVSTRLLDR AEGREAFEAY SDHTTFKAGY LSTNTQQFVA AFEDDFYVFF VFNHQDKHPA
250 260 270 280 290 300
KNRTLLARMC KDDPSYYSYV EMDLQCQDPS DPQDSAFGTC LAASVATSGA GRALYAVFSR
310 320 330 340 350 360
DGRSTGGPGA GLCVFPLDKV REKIEANRNA CYTGAREAGR TIFYKPFHGE IQCGGHLIGA
370 380 390 400 410 420
SESFPCGSEH LPYPLGSRDG LVATAVLHRG GLNLTAVTVT AENDHTVAFL GTSDGRILKV
430 440 450 460 470 480
YLAPDGTSAE YGSIPVDINK KIKQDLALSG NLSSLYAMTQ DKVFRLPVQE CLSYVTCAQC
490 500 510 520 530 540
RDSQDPYCGW CVIEGRCTRK SECSRAEETG HWLWSREKSC VAITDAFPQN MSRRAQGEVR
550 560 570 580 590 600
LSVSPLPTLT EDDELLCLFG DSPPHPARVE DDTVICNSPS SIPSTPPGQD HVDVSIQLLL
610 620 630 640 650 660
KSGSVFLTSH QYPFYDCREA MSLVENLPCI SCASNRWTCQ WDLQYYECRE ASPNPEEGII
670 680 690 700 710 720
RAHMEDNCPQ FLAPDPLVIP MNHETEVTFQ GKNLETVKVS SLYVGSELLN FEETVTMHES
730 740 750 760 770 780
DTFSFRTPKL SHDGNETLPL HLYVKSFGKN IDSKLQVTLY NCSFGRSDCS LCLAADPAYR
790 800 810 820 830 840
CVWCRGQNRC VYEALCSNVT SECPPPVITR IQPETGPLGG GILVTIHGSN LGVKADDVKK
850 860 870 880 890 900
ITVAGQNCAF EPRGYSVSTR IVCAIEASEM PFTGGIEVDV NGKLGHSPPH VQFTYQQPQP
910 920 930 940 950 960
LSVEPRQGPQ AGGTTLTING THLDTGSKED VRVTLNDVPC EVTKFGAQLQ CVTGQQLAPG
970 980 990 1000 1010 1020
QVTLEIYYGG SRVPSPGISF TYCENPMIRA FEPLRSFVSG GRSINVTGQG FSLIQKFAMV
1030 1040 1050 1060 1070 1080
VIAEPLRSWR RRRREAGALE RVTVEGMEYV FYNDTKVVFL SPAVPEEPEA YNLTVLIRMD
1090 1100 1110 1120 1130 1140
GHCAPLRTEA GVFEYVADPT FENFTGGVKK QVNKLIHARG TNLNKAMTLE EAEAFVGAER
1150 1160 1170 1180 1190 1200
CIMKTLTETD LYCEPPEVQP PPKRRQKRDT AHNLPEFIVK FGSREWVLGR VEYDTRASDV
1210 1220 1230 1240 1250 1260
PLSLILPLVM VPMVFIIVVS IYCYWRKSQQ AEREYEKIKS QLEGLEESVR DRCKKEFTDL
1270 1280 1290 1300 1310 1320
MIEMEDQTND VHEAGIPTLD YKTYTDRVFF LPSKDGDKDV MITGKLDIPE SRRPIVEQAL
1330 1340 1350 1360 1370 1380
YQFSNLLNSK SFLINFIHTL ENQREFSARA KVYFASLLTV ALHGKLEYYT DIMRTLFLEL
1390 1400 1410 1420 1430 1440
MEQYVVAKNP KLMLRRSETV VERMLSNWMS ICLYQYLKDS AGEPLYKLFK AIKHQVEKGP
1450 1460 1470 1480 1490 1500
VDAVQKKAKY TLNDTGLLGD DVEYAPLTVS VIVQDEGIDA IPVKVLNCDT ISQVKEKIID
1510 1520 1530 1540 1550 1560
QVYRTQPCSC WPKPDSVVLE WRPGSTAQIL SDLDLTSQRE GRWKRINTLM HYNVRDGATL
1570 1580 1590 1600 1610 1620
ILSKVGVSQQ PEDSQQDLPG ERHALLEEEN RVWHLVRPTD EVDEGKSKRG SMKEKERTKA
1630 1640 1650 1660 1670 1680
ITEIYLTRLL SVKGTLQQFV DNFFQSVLAP GHAVPPAVKY FFDFLDEQAE KHDIRDEDTI
1690 1700 1710 1720 1730 1740
HIWKTNSLPL RFWVNILKNP HFIFDVHVHE VVDASLSVIA QTFMDACTRT EHKLSRDSPS
1750 1760 1770 1780 1790 1800
NKLLYAKEIS TYKKMVEDYY KGIRQMVQVS DQDMNTHLAE ISRAHTDSLN TLVALHQLYQ
1810 1820 1830 1840
YTQKYYDEII NALEEDPAAQ KMQLAFRLQQ IAAALENKVT DL