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MYO1B_RAT
ID   MYO1B_RAT               Reviewed;        1136 AA.
AC   Q05096;
DT   27-APR-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1996, sequence version 1.
DT   03-AUG-2022, entry version 170.
DE   RecName: Full=Unconventional myosin-Ib;
DE   AltName: Full=Myosin I alpha;
DE            Short=MMI-alpha;
DE            Short=MMIa;
DE   AltName: Full=Myosin heavy chain myr 1;
GN   Name=Myo1b; Synonyms=Myo1a, Myr1;
OS   Rattus norvegicus (Rat).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC   Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae;
OC   Murinae; Rattus.
OX   NCBI_TaxID=10116;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS A; B AND C).
RC   STRAIN=Sprague-Dawley;
RX   PubMed=8449985; DOI=10.1083/jcb.120.6.1393;
RA   Ruppert C., Kroschewski R., Baehler M.;
RT   "Identification, characterization and cloning of myr 1, a mammalian myosin-
RT   I.";
RL   J. Cell Biol. 120:1393-1403(1993).
CC   -!- FUNCTION: Motor protein that may participate in process critical to
CC       neuronal development and function such as cell migration, neurite
CC       outgrowth and vesicular transport. {ECO:0000250}.
CC   -!- ALTERNATIVE PRODUCTS:
CC       Event=Alternative splicing; Named isoforms=3;
CC       Name=A;
CC         IsoId=Q05096-1; Sequence=Displayed;
CC       Name=B;
CC         IsoId=Q05096-2; Sequence=VSP_003348;
CC       Name=C;
CC         IsoId=Q05096-3; Sequence=VSP_003349;
CC   -!- SIMILARITY: Belongs to the TRAFAC class myosin-kinesin ATPase
CC       superfamily. Myosin family. {ECO:0000305}.
CC   -!- CAUTION: Represents an unconventional myosin. This protein should not
CC       be confused with the conventional myosin-1 (MYH1). {ECO:0000305}.
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DR   EMBL; X68199; CAA48287.1; -; mRNA.
DR   PIR; A45439; A45439.
DR   PIR; C45439; C45439.
DR   RefSeq; NP_446438.1; NM_053986.1. [Q05096-1]
DR   PDB; 4L79; X-ray; 2.30 A; A=1-728.
DR   PDB; 5V7X; X-ray; 3.14 A; A=1-728.
DR   PDB; 6C1D; EM; 3.20 A; P=6-728.
DR   PDB; 6C1G; EM; 3.80 A; P=6-728.
DR   PDB; 6C1H; EM; 3.90 A; P=6-728.
DR   PDBsum; 4L79; -.
DR   PDBsum; 5V7X; -.
DR   PDBsum; 6C1D; -.
DR   PDBsum; 6C1G; -.
DR   PDBsum; 6C1H; -.
DR   AlphaFoldDB; Q05096; -.
DR   SMR; Q05096; -.
DR   BioGRID; 250654; 1.
DR   STRING; 10116.ENSRNOP00000059455; -.
DR   BindingDB; Q05096; -.
DR   ChEMBL; CHEMBL4295803; -.
DR   iPTMnet; Q05096; -.
DR   PhosphoSitePlus; Q05096; -.
DR   PaxDb; Q05096; -.
DR   PeptideAtlas; Q05096; -.
DR   PRIDE; Q05096; -.
DR   Ensembl; ENSRNOT00000068433; ENSRNOP00000061523; ENSRNOG00000048152. [Q05096-1]
DR   GeneID; 117057; -.
DR   KEGG; rno:117057; -.
DR   UCSC; RGD:70994; rat. [Q05096-1]
DR   CTD; 4430; -.
DR   RGD; 70994; Myo1b.
DR   eggNOG; KOG0164; Eukaryota.
DR   GeneTree; ENSGT00940000155752; -.
DR   HOGENOM; CLU_000192_7_7_1; -.
DR   InParanoid; Q05096; -.
DR   OMA; PLYGNEY; -.
DR   OrthoDB; 122881at2759; -.
DR   PRO; PR:Q05096; -.
DR   Proteomes; UP000002494; Chromosome 9.
DR   Bgee; ENSRNOG00000048152; Expressed in lung and 19 other tissues.
DR   Genevisible; Q05096; RN.
DR   GO; GO:0015629; C:actin cytoskeleton; IBA:GO_Central.
DR   GO; GO:0005884; C:actin filament; ISO:RGD.
DR   GO; GO:0045177; C:apical part of cell; IDA:RGD.
DR   GO; GO:0005903; C:brush border; IDA:RGD.
DR   GO; GO:0071944; C:cell periphery; IDA:UniProtKB.
DR   GO; GO:0005737; C:cytoplasm; IDA:UniProtKB.
DR   GO; GO:0005769; C:early endosome; ISO:RGD.
DR   GO; GO:0010008; C:endosome membrane; ISO:RGD.
DR   GO; GO:0030175; C:filopodium; IDA:UniProtKB.
DR   GO; GO:0005902; C:microvillus; IBA:GO_Central.
DR   GO; GO:0016459; C:myosin complex; IEA:UniProtKB-KW.
DR   GO; GO:0048471; C:perinuclear region of cytoplasm; ISO:RGD.
DR   GO; GO:0005886; C:plasma membrane; IDA:UniProtKB.
DR   GO; GO:0032588; C:trans-Golgi network membrane; IEA:Ensembl.
DR   GO; GO:0003779; F:actin binding; IDA:UniProtKB.
DR   GO; GO:0051015; F:actin filament binding; IDA:RGD.
DR   GO; GO:0005524; F:ATP binding; IDA:UniProtKB.
DR   GO; GO:0005516; F:calmodulin binding; IDA:UniProtKB.
DR   GO; GO:0003774; F:cytoskeletal motor activity; IDA:UniProtKB.
DR   GO; GO:0000146; F:microfilament motor activity; IDA:UniProtKB.
DR   GO; GO:0005547; F:phosphatidylinositol-3,4,5-trisphosphate binding; IDA:UniProtKB.
DR   GO; GO:0005546; F:phosphatidylinositol-4,5-bisphosphate binding; IDA:UniProtKB.
DR   GO; GO:0051017; P:actin filament bundle assembly; IDA:UniProtKB.
DR   GO; GO:0007015; P:actin filament organization; ISO:RGD.
DR   GO; GO:0030048; P:actin filament-based movement; IDA:UniProtKB.
DR   GO; GO:0007399; P:nervous system development; NAS:RGD.
DR   GO; GO:0006892; P:post-Golgi vesicle-mediated transport; ISO:RGD.
DR   GO; GO:0033572; P:transferrin transport; ISO:RGD.
DR   GO; GO:0030050; P:vesicle transport along actin filament; IBA:GO_Central.
DR   CDD; cd01378; MYSc_Myo1; 1.
DR   Gene3D; 3.40.850.10; -; 1.
DR   InterPro; IPR000048; IQ_motif_EF-hand-BS.
DR   InterPro; IPR036961; Kinesin_motor_dom_sf.
DR   InterPro; IPR001609; Myosin_head_motor_dom.
DR   InterPro; IPR010926; Myosin_TH1.
DR   InterPro; IPR036072; MYSc_Myo1.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   Pfam; PF00612; IQ; 2.
DR   Pfam; PF00063; Myosin_head; 1.
DR   Pfam; PF06017; Myosin_TH1; 1.
DR   PRINTS; PR00193; MYOSINHEAVY.
DR   SMART; SM00015; IQ; 6.
DR   SMART; SM00242; MYSc; 1.
DR   SUPFAM; SSF52540; SSF52540; 2.
DR   PROSITE; PS50096; IQ; 5.
DR   PROSITE; PS51456; MYOSIN_MOTOR; 1.
DR   PROSITE; PS51757; TH1; 1.
PE   1: Evidence at protein level;
KW   3D-structure; Actin-binding; Alternative splicing; ATP-binding;
KW   Calmodulin-binding; Isopeptide bond; Motor protein; Myosin;
KW   Nucleotide-binding; Phosphoprotein; Reference proteome; Repeat;
KW   Ubl conjugation.
FT   CHAIN           1..1136
FT                   /note="Unconventional myosin-Ib"
FT                   /id="PRO_0000123444"
FT   DOMAIN          15..701
FT                   /note="Myosin motor"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00782"
FT   DOMAIN          704..729
FT                   /note="IQ 1"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00116"
FT   DOMAIN          730..750
FT                   /note="IQ 2"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00116"
FT   DOMAIN          750..778
FT                   /note="IQ 3"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00116"
FT   DOMAIN          780..807
FT                   /note="IQ 4"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00116"
FT   DOMAIN          808..837
FT                   /note="IQ 5"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00116"
FT   DOMAIN          837..866
FT                   /note="IQ 6"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00116"
FT   DOMAIN          952..1136
FT                   /note="TH1"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01093"
FT   REGION          592..599
FT                   /note="Actin-binding"
FT                   /evidence="ECO:0000255"
FT   BINDING         108..115
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255"
FT   MOD_RES         60
FT                   /note="Phosphoserine"
FT                   /evidence="ECO:0000250|UniProtKB:O43795"
FT   CROSSLNK        287
FT                   /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT                   G-Cter in SUMO1); alternate"
FT                   /evidence="ECO:0000250|UniProtKB:O43795"
FT   CROSSLNK        287
FT                   /note="Glycyl lysine isopeptide (Lys-Gly) (interchain with
FT                   G-Cter in SUMO2); alternate"
FT                   /evidence="ECO:0000250|UniProtKB:O43795"
FT   VAR_SEQ         794..852
FT                   /note="Missing (in isoform C)"
FT                   /evidence="ECO:0000303|PubMed:8449985"
FT                   /id="VSP_003349"
FT   VAR_SEQ         794..823
FT                   /note="Missing (in isoform B)"
FT                   /evidence="ECO:0000303|PubMed:8449985"
FT                   /id="VSP_003348"
FT   TURN            10..13
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   HELIX           20..22
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   HELIX           28..40
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   STRAND          45..48
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   STRAND          51..55
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   HELIX           66..72
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   TURN            77..79
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   STRAND          80..82
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   HELIX           84..98
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   STRAND          102..109
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   HELIX           112..128
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   HELIX           133..144
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   HELIX           146..153
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   STRAND          161..164
FT                   /evidence="ECO:0007829|PDB:5V7X"
FT   STRAND          166..174
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   STRAND          180..188
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   HELIX           193..196
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   HELIX           206..214
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   HELIX           217..222
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   HELIX           229..231
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   STRAND          233..235
FT                   /evidence="ECO:0007829|PDB:5V7X"
FT   STRAND          243..245
FT                   /evidence="ECO:0007829|PDB:6C1D"
FT   HELIX           247..260
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   HELIX           265..281
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   STRAND          286..289
FT                   /evidence="ECO:0007829|PDB:5V7X"
FT   STRAND          292..295
FT                   /evidence="ECO:0007829|PDB:6C1D"
FT   STRAND          299..301
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   HELIX           304..313
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   HELIX           317..325
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   STRAND          326..328
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   STRAND          331..334
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   STRAND          337..339
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   HELIX           342..370
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   STRAND          381..387
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   STRAND          395..397
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   HELIX           399..429
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   HELIX           442..450
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   TURN            452..454
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   HELIX           456..465
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   STRAND          466..468
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   HELIX           472..482
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   STRAND          489..491
FT                   /evidence="ECO:0007829|PDB:5V7X"
FT   TURN            492..494
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   TURN            498..501
FT                   /evidence="ECO:0007829|PDB:6C1D"
FT   STRAND          507..514
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   STRAND          517..522
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   HELIX           526..530
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   HELIX           536..543
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   STRAND          544..547
FT                   /evidence="ECO:0007829|PDB:6C1D"
FT   HELIX           548..553
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   HELIX           555..557
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   STRAND          558..561
FT                   /evidence="ECO:0007829|PDB:5V7X"
FT   HELIX           570..586
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   STRAND          588..596
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   HELIX           609..619
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   HELIX           621..629
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   STRAND          633..637
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   HELIX           638..645
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   HELIX           646..648
FT                   /evidence="ECO:0007829|PDB:5V7X"
FT   TURN            650..655
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   HELIX           660..670
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   STRAND          677..680
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   STRAND          682..688
FT                   /evidence="ECO:0007829|PDB:4L79"
FT   HELIX           690..728
FT                   /evidence="ECO:0007829|PDB:4L79"
SQ   SEQUENCE   1136 AA;  131918 MW;  69D6C2A84E9070E2 CRC64;
     MAKKEVKSSL LDNMIGVGDT VLLEPLNEET FIDNLKKRFD HNEIYTYIGS VVISVNPYRS
     LPIYSPEKVE DYRNRNFYEL SPHIFALSDE AYRSLRDQDK DQCILITGES GAGKTEASKL
     VMSYVAAVCG KGAEVNQVKE QLLQSTPVLE AFGNAKTVRN DNSSRFGKYM DIEFDFKGDP
     LGGVISNYLL EKSRVVKQPR GERNFHVFYQ LLSGASEELL HKLKLERDFS RYNYLSLDSA
     KVNGVDDAAN FRTVRNAMQI VGFSDPEAES VLEVVAAVLK LGNIEFKPES RMNGLDESKI
     KDKNELKEIC ELTSIDQVVL ERAFSFRTVE AKQEKVSTTL NVAQAYYARD ALAKNLYSRL
     FSWLVNRINE SIKAQTKVRK KVMGVLDIYG FEIFEDNSFE QFIINYCNEK LQQIFIELTL
     KEEQEEYIRE DIEWTHIDYF NNAIICDLIE NNTNGILAML DEECLRPGTV TDETFLEKLN
     QVCATHQHFE SRMSKCSRFL NDTTLPHSCF RIQHYAGKVL YQVEGFVDKN NDLLYRDLSQ
     AMWKAGHALI KSLFPEGNPA KVNLKRPPTA GSQFKASVAT LMKNLQTKNP NYIRCIKPND
     KKAAHIFSES LVCHQIRYLG LLENVRVRRA GYAFRQAYEP CLERYKMLCK QTWPHWKGPA
     RSGVEVLFNE LEIPVEEYSF GRSKIFIRNP RTLFQLEDLR KQRLEDLATL IQKIYRGWKC
     RTHFLLMKRS QVVIAAWYRR YAQQKRYQQI KSSALVIQSY IRGWKARKIL RELKHQKRCK
     EAATTIAAYW HGTQARKERR RLKDEARNKH AIAVIWAFWL GSKARRELKR LKEEARRKHA
     VAVIWAYWLG LKVRREYRKF FRANAGKKIY EFTLQRIVQK YLLEMKNKMP SLSPIDKNWP
     SRPYLFLDST HKELKRIFHL WRCKKYRDQF TDQQKLIYEE KLEASELFKD KKALYPSSVG
     QPFQGAYLEI NKNPKYKKLK DAIEEKIIIA EVVNKINRAN GKSTSRIFLL TNNNLLLADQ
     KSGQIKSEVP LVDVTKVSMS SQNDGFFAVH LKEGSEAASK GDFLFSSDHL IEMATKLYRT
     TLSQTKQKLN IEISDEFLVQ FRQDKVCVKF IQGNQKNGSV PTCKRKNNRL LEVAVP
 
 
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