Descriptions

Talin-1, a FERM domain-containing protein, forms a direct link with integrin adhesion receptors and the actin cytoskeleton and plays an important role in regulating integrin-mediated signaling. Talin function is autoinhibited by intramolecular interactions between the integrin-binding F3 domain within the FERM domain and autoinhibitory domain (R9) within the C-terminal rod domain (Talin rod). Both the small GTPase Rap1 and PIP2 activate talin and promote integrin-mediated cell adhesion.

Autoinhibitory domains (AIDs)

Target domain

314-403 (Talin head, FERM F3 subdomain)

Relief mechanism

Ligand binding, Partner binding

Assay

Deletion assay, Mutagenesis experiment, Structural analysis

Accessory elements

No accessory elements

Autoinhibited structure

Activated structure

39 structures for P26039

Entry ID Method Resolution Chain Position Source
1SJ7 X-ray 250 A A/B/C 482-655 PDB
1SJ8 X-ray 260 A A 482-789 PDB
1T01 X-ray 206 A B 605-628 PDB
1U89 NMR - A 755-889 PDB
1Y19 X-ray 260 A B/D/F/H/J/L 209-410 PDB
1ZW3 X-ray 330 A B 1628-1652 PDB
2B0H NMR - A 1843-1973 PDB
2G35 NMR - A 305-404 PDB
2JSW NMR - A 2300-2482 PDB
2KBB NMR - A 1655-1822 PDB
2KC1 NMR - A 1-85 PDB
2KC2 NMR - A 86-202 PDB
2KGX NMR - PDB
2KMA NMR - A 1-202 PDB
2KVP NMR - A 1815-1973 PDB
2L10 NMR - A 1206-1357 PDB
2L7A NMR - A 787-911 PDB
2L7N NMR - A 1046-1207 PDB
2LQG NMR - A 913-1044 PDB
2QDQ X-ray 220 A A/B 2494-2541 PDB
2X0C X-ray 200 A A 1359-1659 PDB
3DYJ X-ray 185 A A/B 1974-2293 PDB
3IVF X-ray 194 A A 1-400 PDB
3S90 X-ray 197 A C/D 1512-1546 PDB
4F7G X-ray 205 A PDB
4W8P X-ray 150 A A 1357-1657 PDB
5FZT X-ray 210 A A 1359-1659 PDB
5IC0 X-ray 197 A A 1357-1822 PDB
5IC1 X-ray 220 A A 1357-1822 PDB
5NL1 X-ray 250 A A/B/C/D/E/F 480-635 PDB
6BA6 NMR - A 1-86 PDB
6MFS X-ray 285 A PDB
6TWN X-ray 228 A A/B 1359-1659 PDB
6VGU X-ray 278 A A 1-430 PDB
7V1A X-ray 184 A A 1357-1657 PDB
7ZW4 X-ray 272 A A 1358-1659 PDB
8AS9 X-ray 340 A C 1359-1659 PDB
8IVZ X-ray 280 A A/B 1357-1653 PDB
AF-P26039-F1 Predicted AlphaFoldDB

130 variants for P26039

Variant ID(s) Position Change Description Diseaes Association Provenance
rs3388678357 57 K>Q No EVA
rs3388681952 65 G>R No EVA
rs3388683586 106 K>R No EVA
rs3388668405 110 D>N No EVA
rs3388683605 125 D>E No EVA
rs3388681983 133 L>P No EVA
rs3388668348 141 G>E No EVA
rs3388677913 156 K>R No EVA
rs3388681978 171 L>F No EVA
rs3388681624 224 L>V No EVA
rs3388680658 265 F>I No EVA
rs3388683590 269 E>A No EVA
rs3388668328 280 F>L No EVA
rs3393897141 283 H>L No EVA
rs3394180716 284 K>E No EVA
rs3394224034 284 K>N No EVA
rs3394223371 287 G>V No EVA
rs3388668371 291 E>V No EVA
rs3388681683 366 F>Y No EVA
rs3388684500 374 Q>* No EVA
rs3388678294 393 A>G No EVA
rs3388673017 405 S>I No EVA
rs3388673017 405 S>N No EVA
rs3388684479 411 L>E No EVA
rs3388681907 411 L>V No EVA
rs3388661260 412 E>D No EVA
rs3388681673 441 K>E No EVA
rs3388681619 454 R>H No EVA
rs250817076 465 V>M No EVA
rs3388677920 479 Q>H No EVA
rs3388677839 541 H>Q No EVA
rs3388681076 555 A>T No EVA
rs3388674939 557 V>M No EVA
rs3388674991 560 L>P No EVA
rs3388673022 561 T>I No EVA
rs3388678289 575 C>* No EVA
rs3388674989 608 L>I No EVA
rs3412938978 613 K>R No EVA
rs3388661202 614 G>C No EVA
rs3388680538 616 A>T No EVA
rs3394232494 636 N>K No EVA
rs3394087256 637 L>R No EVA
rs3394224041 639 Q>H No EVA
rs3394087272 639 Q>H No EVA
rs3394175006 639 Q>P No EVA
rs3388678275 641 A>V No EVA
rs3388674992 647 A>V No EVA
rs3388678376 656 G>R No EVA
rs3388678405 691 Q>R No EVA
rs3388678401 694 E>D No EVA
rs3388668910 764 L>V No EVA
rs3388677875 773 A>V No EVA
rs3388674937 811 N>T No EVA
rs3388661212 878 A>T No EVA
rs3388674977 897 L>P No EVA
rs3388677867 903 A>T No EVA
rs248061000 944 A>G No EVA
rs3388668973 956 C>R No EVA
rs3388678286 977 P>S No EVA
rs3394133952 980 P>T No EVA
rs3394087266 981 S>R No EVA
rs3388673013 988 A>P No EVA
rs3388668369 996 P>L No EVA
rs3388668323 1017 A>V No EVA
rs3393673107 1026 N>S No EVA
rs3394019640 1032 A>T No EVA
rs3388680719 1059 N>K No EVA
rs3388677923 1081 G>W No EVA
rs3393918279 1086 K>E No EVA
rs3388678316 1091 L>R No EVA
rs3388674948 1094 S>G No EVA
rs3388681608 1099 S>G No EVA
1105 L>P No
rs3388681701 1133 Q>* No EVA
rs3388674958 1137 G>D No EVA
rs3388674911 1143 S>L No EVA
rs3388684471 1176 P>A No EVA
rs3388674936 1177 G>E No EVA
rs3388680660 1214 R>* No EVA
rs27831179 1227 S>L No EVA
rs3388677859 1297 D>V No EVA
rs3388684485 1299 A>V No EVA
rs3388677891 1381 V>D No EVA
rs3388683560 1382 Q>L No EVA
rs3388668386 1398 E>G No EVA
rs3388681699 1451 D>E No EVA
rs3388680521 1453 N>Y No EVA
rs3388684492 1470 A>E No EVA
rs3388674967 1569 V>M No EVA
rs3388674974 1572 L>M No EVA
rs3388668975 1656 P>L No EVA
rs3388668922 1660 E>K No EVA
rs3412695453 1665 I>T No EVA
rs3388674606 1677 Q>H No EVA
rs3388683618 1711 H>L No EVA
rs3393897093 1745 A>GGSGS* No EVA
rs3388680641 1749 A>T No EVA
rs3388668375 1791 H>Y No EVA
rs3388661240 1801 Q>E No EVA
rs3388668346 1812 T>M No EVA
rs3388677884 1815 N>K No EVA
rs3388673038 1817 A>T No EVA
rs3388681702 1835 I>V No EVA
rs1134009029 1879 P>L No EVA
rs3388683616 1887 N>D No EVA
rs3388683575 1890 T>S No EVA
rs3388672965 1956 R>S No EVA
rs3388677855 1974 G>V No EVA
rs3388684483 1977 A>S No EVA
rs3388668953 2010 E>V No EVA
rs3388674941 2032 V>I No EVA
rs3388668366 2034 V>L No EVA
rs3388674575 2044 L>V No EVA
rs3542218618 2057 R>L No EVA
rs3388680646 2153 I>T No EVA
2180 K>M No
rs3388661266 2181 G>D No EVA
rs3388674564 2309 L>F No EVA
rs3388674564 2309 L>I No EVA
rs3388677870 2312 A>P No EVA
rs3388677871 2313 A>V No EVA
rs3388681070 2315 A>V No EVA
rs3388674984 2327 K>R No EVA
rs3388677889 2347 E>G No EVA
rs3388673014 2408 C>* No EVA
rs3388679269 2436 A>P No EVA
rs3388678273 2460 G>A No EVA
rs3388673018 2460 G>S No EVA
rs27831204 2470 L>M No EVA
rs3388677892 2526 R>Q No EVA

No associated diseases with P26039

13 regional properties for P26039

Type Name Position InterPro Accession
domain Protein kinase domain 634 - 895 IPR000719
domain Ephrin receptor ligand binding domain 30 - 208 IPR001090
domain Serine-threonine/tyrosine-protein kinase, catalytic domain 634 - 891 IPR001245
conserved_site Tyrosine-protein kinase, receptor class V, conserved site 184 - 204 IPR001426-1
conserved_site Tyrosine-protein kinase, receptor class V, conserved site 246 - 266 IPR001426-2
domain Sterile alpha motif domain 926 - 993 IPR001660
domain Fibronectin type III 327 - 437 IPR003961-1
domain Fibronectin type III 438 - 533 IPR003961-2
active_site Tyrosine-protein kinase, active site 755 - 767 IPR008266
binding_site Protein kinase, ATP binding site 640 - 666 IPR017441
domain Tyrosine-protein kinase, catalytic domain 634 - 891 IPR020635
domain Ephrin receptor, transmembrane domain 542 - 631 IPR027936
domain Ephrin type-A receptor 8, ligand binding domain 30 - 202 IPR034287

Functions

Description
EC Number
Subcellular Localization
  • Cell projection, ruffle membrane ; Peripheral membrane protein ; Cytoplasmic side
  • Cytoplasm, cytoskeleton
  • Cell surface
  • Cell junction, focal adhesion
  • Colocalizes with LAYN at the membrane ruffles (By similarity)
  • Localized preferentially in focal adhesions than fibrillar adhesions
PANTHER Family PTHR19981 TALIN
PANTHER Subfamily PTHR19981:SF7 TALIN-1
PANTHER Protein Class
PANTHER Pathway Category Integrin signalling pathway
Talin

8 GO annotations of cellular component

Name Definition
adherens junction A cell-cell junction composed of the epithelial cadherin-catenin complex. The epithelial cadherins, or E-cadherins, of each interacting cell extend through the plasma membrane into the extracellular space and bind to each other. The E-cadherins bind to catenins on the cytoplasmic side of the membrane, where the E-cadherin-catenin complex binds to cytoskeletal components and regulatory and signaling molecules.
cell surface The external part of the cell wall and/or plasma membrane.
cytoplasm The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
cytoskeleton A cellular structure that forms the internal framework of eukaryotic and prokaryotic cells. The cytoskeleton includes intermediate filaments, microfilaments, microtubules, the microtrabecular lattice, and other structures characterized by a polymeric filamentous nature and long-range order within the cell. The various elements of the cytoskeleton not only serve in the maintenance of cellular shape but also have roles in other cellular functions, including cellular movement, cell division, endocytosis, and movement of organelles.
focal adhesion A cell-substrate junction that anchors the cell to the extracellular matrix and that forms a point of termination of actin filaments. In insects focal adhesion has also been referred to as hemi-adherens junction (HAJ).
plasma membrane The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
ruffle Projection at the leading edge of a crawling cell; the protrusions are supported by a microfilament meshwork.
ruffle membrane The portion of the plasma membrane surrounding a ruffle.

7 GO annotations of molecular function

Name Definition
actin filament binding Binding to an actin filament, also known as F-actin, a helical filamentous polymer of globular G-actin subunits.
integrin binding Binding to an integrin.
LIM domain binding Binding to a LIM domain (for Lin-11 Isl-1 Mec-3) of a protein, a domain with seven conserved cysteine residues and a histidine, that binds two zinc ions and acts as an interface for protein-protein interactions.
phosphatidylinositol binding Binding to an inositol-containing glycerophospholipid, i.e. phosphatidylinositol (PtdIns) and its phosphorylated derivatives.
phosphatidylserine binding Binding to phosphatidylserine, a class of glycophospholipids in which a phosphatidyl group is esterified to the hydroxyl group of L-serine.
structural constituent of cytoskeleton The action of a molecule that contributes to the structural integrity of a cytoskeletal structure.
vinculin binding Binding to vinculin, a protein found in muscle, fibroblasts, and epithelial cells that binds actin and appears to mediate attachment of actin filaments to integral proteins of the plasma membrane.

5 GO annotations of biological process

Name Definition
cell-cell adhesion The attachment of one cell to another cell via adhesion molecules.
cell-substrate junction assembly The aggregation, arrangement and bonding together of a set of components to form a junction between a cell and its substrate.
cortical actin cytoskeleton organization A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of actin-based cytoskeletal structures in the cell cortex, i.e. just beneath the plasma membrane.
integrin activation The aggregation, arrangement and bonding together of an integrin, a heterodimeric adhesion receptor formed by the non-covalent association of particular alpha and beta subunits, that lead to the increased affinity of the integrin for its extracellular ligands.
integrin-mediated signaling pathway The series of molecular signals initiated by an extracellular ligand binding to an integrin on the surface of a target cell, and ending with the regulation of a downstream cellular process, e.g. transcription.

14 homologous proteins in AiPD

UniProt AC Gene Name Protein Name Species Evidence Code
Q32LP0 FERMT3 Fermitin family homolog 3 Bos taurus (Bovine) SS
P54939 TLN1 Talin-1 Gallus gallus (Chicken) SS
Q9VZI3 Fit1 Unc-112-related protein Drosophila melanogaster (Fruit fly) SS
Q9Y490 TLN1 Talin-1 Homo sapiens (Human) EV
Q9Y4G6 TLN2 Talin-2 Homo sapiens (Human) SS
Q96AC1 FERMT2 Fermitin family homolog 2 Homo sapiens (Human) SS
Q86UX7 FERMT3 Fermitin family homolog 3 Homo sapiens (Human) EV
Q9BQL6 FERMT1 Fermitin family homolog 1 Homo sapiens (Human) SS
Q71LX4 Tln2 Talin-2 Mus musculus (Mouse) SS
Q8K1B8 Fermt3 Fermitin family homolog 3 Mus musculus (Mouse) SS
P59113 Fermt1 Fermitin family homolog 1 Mus musculus (Mouse) SS
Q8CIB5 Fermt2 Fermitin family homolog 2 Mus musculus (Mouse) SS
Q18685 unc-112 Protein unc-112 Caenorhabditis elegans SS
F1Q8X5 fermt2 Fermitin family homolog 2 Danio rerio (Zebrafish) (Brachydanio rerio) SS
10 20 30 40 50 60
MVALSLKISI GNVVKTMQFE PSTMVYDACR MIRERIPEAL AGPPNDFGLF LSDDDPKKGI
70 80 90 100 110 120
WLEAGKALDY YMLRNGDTME YRKKQRPLKI RMLDGTVKTI MVDDSKTVTD MLMTICARIG
130 140 150 160 170 180
ITNHDEYSLV RELMEEKKDE GTGTLRKDKT LLRDEKKMEK LKQKLHTDDE LNWLDHGRTL
190 200 210 220 230 240
REQGVEEHET LLLRRKFFYS DQNVDSRDPV QLNLLYVQAR DDILNGSHPV SFDKACEFAG
250 260 270 280 290 300
FQCQIQFGPH NEQKHKAGFL DLKDFLPKEY VKQKGERKIF QAHKNCGQMS EIEAKVRYVK
310 320 330 340 350 360
LARSLKTYGV SFFLVKEKMK GKNKLVPRLL GITKECVMRV DEKTKEVIQE WSLTNIKRWA
370 380 390 400 410 420
ASPKSFTLDF GDYQDGYYSV QTTEGEQIAQ LIAGYIDIIL KKKKSKDHFG LEGDEESTML
430 440 450 460 470 480
EDSVSPKKST VLQQQYNRVG KVEHGSVALP AIMRSGASGP ENFQVGSMPP AQQQITSGQM
490 500 510 520 530 540
HRGHMPPLTS AQQALTGTIN SSMQAVQAAQ ATLDDFETLP PLGQDAASKA WRKNKMDESK
550 560 570 580 590 600
HEIHSQVDAI TAGTASVVNL TAGDPAETDY TAVGCAVTTI SSNLTEMSRG VKLLAALLED
610 620 630 640 650 660
EGGNGRPLLQ AAKGLAGAVS ELLRSAQPAS AEPRQNLLQA AGNVGQASGE LLQQIGESDT
670 680 690 700 710 720
DPHFQDVLMQ LAKAVASAAA ALVLKAKSVA QRTEDSGLQT QVIAAATQCA LSTSQLVACT
730 740 750 760 770 780
KVVAPTISSP VCQEQLVEAG RLVAKAVEGC VSASQAATED GQLLRGVGAA ATAVTQALNE
790 800 810 820 830 840
LLQHVKAHAT GAGPAGRYDQ ATDTILTVTE NIFSSMGDAG EMVRQARILA QATSDLVNAI
850 860 870 880 890 900
KADAEGESDL ENSRKLLSAA KILADATAKM VEAAKGAAAH PDSEEQQQRL REAAEGLRMA
910 920 930 940 950 960
TNAAAQNAIK KKLVQRLEHA AKQAAASATQ TIAAAQHAAS APKASAGPQP LLVQSCKAVA
970 980 990 1000 1010 1020
EQIPLLVQGV RGSQAQPDSP SAQLALIAAS QSFLQPGGKM VAAAKASVPT IQDQASAMQL
1030 1040 1050 1060 1070 1080
SQCAKNLGTA LAELRTAAQK AQEACGPLEM DSALSVVQNL EKDLQEIKAA ARDGKLKPLP
1090 1100 1110 1120 1130 1140
GETMEKCTQD LGNSTKAVSS AIAKLLGEIA QGNENYAGIA ARDVAGGLRS LAQAARGVAA
1150 1160 1170 1180 1190 1200
LTSDPAVQAI VLDTASDVLD KASSLIEEAK KASGHPGDPE SQQRLAQVAK AVTQALNRCV
1210 1220 1230 1240 1250 1260
SCLPGQRDVD NALRAVGDAS KRLLSDSLPP STGTFQEAQS RLNEAAAGLN QAATELVQAS
1270 1280 1290 1300 1310 1320
RGTPQDLARA SGRFGQDFST FLEAGVEMAG QAPSQEDRAQ VVSNLKGISM SSSKLLLAAK
1330 1340 1350 1360 1370 1380
ALSTDPASPN LKSQLAAAAR AVTDSINQLI TMCTQQAPGQ KECDNALRQL ETVRELLENP
1390 1400 1410 1420 1430 1440
VQPINDMSYF GCLDSVMENS KVLGEAMTGI SQNAKNGNLP EFGDAIATAS KALCGFTEAA
1450 1460 1470 1480 1490 1500
AQAAYLVGVS DPNSQAGQQG LVEPTQFARA NQAIQMACQS LGEPGCTQAQ VLSAATIVAK
1510 1520 1530 1540 1550 1560
HTSALCNSCR LASARTANPT AKRQFVQSAK EVANSTANLV KTIKALDGDF TEENRAQCRA
1570 1580 1590 1600 1610 1620
ATAPLLEAVD NLSAFASNPE FSSVPAQISP EGRAAMEPIV ISAKTMLESA GGLIQTARAL
1630 1640 1650 1660 1670 1680
AVNPRDPPRW SVLAGHSRTV SDSIKKLITS MRDKAPGQLE CETAIAALNS CLRDLDQASL
1690 1700 1710 1720 1730 1740
AAVSQQLAPR EGISQEALHT QMLTAVQEIS HLIEPLASAA RAEASQLGHK VSQMAQYFEP
1750 1760 1770 1780 1790 1800
LTLAAVGAAS KTLSHPQQMA LLDQTKTLAE SALQLLYTAK EAGGNPKQAA HTQEALEEAV
1810 1820 1830 1840 1850 1860
QMMTEAVEDL TTTLNEAASA AGVVGGMVDS ITQAINQLDE GPMGDPEGSF VDYQTTMVRT
1870 1880 1890 1900 1910 1920
AKAIAVTVQE MVTKSNTSPE ELGPLANQLT SDYGRLASQA KPAAVAAENE EIGAHIKHRV
1930 1940 1950 1960 1970 1980
QELGHGCSAL VTKAGALQCS PSDVYTKKEL IECARRVSEK VSHVLAALQA GNRGTQACIT
1990 2000 2010 2020 2030 2040
AASAVSGIIA DLDTTIMFAT AGTLNREGAE TFADHREGIL KTAKVLVEDT KVLVQNAAGS
2050 2060 2070 2080 2090 2100
QEKLAQAAQS SVATITRLAD VVKLGAASLG AEDPETQVVL INAVKDVAKA LGDLISATKA
2110 2120 2130 2140 2150 2160
AAGKVGDDPA VWQLKNSAKV MVTNVTSLLK TVKAVEDEAT KGTRALEATT EHIRQELAVF
2170 2180 2190 2200 2210 2220
CSPEPPAKTS TPEDFIRMTK GITMATAKAV AAGNSCRQED VIATANLSRR AIADMLRACK
2230 2240 2250 2260 2270 2280
EAAFHPEVAP DVRLRALHYG RECANGYLEL LDHVLLTLQK PNPDLKQQLT GHSKRVAGSV
2290 2300 2310 2320 2330 2340
TELIQAAEAM KGTEWVDPED PTVIAENELL GAAAAIEAAA KKLEQLKPRA KPKEADESLN
2350 2360 2370 2380 2390 2400
FEEQILEAAK SIAAATSALV KAASAAQREL VAQGKVGAIP ANALDDGQWS QGLISAARMV
2410 2420 2430 2440 2450 2460
AAATNNLCEA ANAAVQGHAS QEKLISSAKQ VAASTAQLLV ACKVKADQDS EAMKRLQAAG
2470 2480 2490 2500 2510 2520
NAVKRASDNL VKAAQKAAAF EDQENETVVV KEKMVGGIAQ IIAAQEEMLR KERELEEARK
2530 2540
KLAQIRQQQY KFLPSELRDE H