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SPEF2

Gene
SPEF2
Protein
Sperm flagellar protein 2
Organism
Homo sapiens
Length
1822 amino acids
Function
Required for correct axoneme development in spermatozoa. Important for normal development of the manchette and sperm head morphology. Essential for male fertility. Plays a role in localization of the intraflagellar transport protein IFT20 to the manchette, suggesting function as an adapter for dynein-mediated protein transport during spermatogenesis. Also plays a role in bone growth where it seems to be required for normal osteoblast differentiation.
Mass
209.811 kDa
Sequence
MSEILCQWLNKELKVSRTVSPKSFAKAFSSGYLLGEVLHKFELQDDFSEFLDSRVSSAKLNNFSRLEPTLNLLGVQFDQNVAHGIITEKPGVATKLLYQLYIALQKKKKSGLTGVEMQTMQRLTNLRLQNMKSDTFQERLRHMIPRQTDFNLMRITYRFQEKYKHVKEDLAHLHFEKLERFQKLKEEQRCFDIEKQYLNRRRQNEIMAKIQAAIIQIPKPASNRTLKALEAQKMMKKKKEAEDVADEIKKFEALIKKDLQAKESASKTSLDTAGQTTTDLLNTYSDDEYIKKIQKRLEEDAFAREQREKRRRKLLMDQLIAHEAQEEAYREEQLINRLMRQSQQERRIAVQLMHVRHEKEVLWQNRIFREKQHEERRLKDFQDALDREAALAKQAKIDFEEQFLKEKRFHDQIAVERAQARYEKHYSVCAEILDQIVDLSTKVADYRMLTNNLIPYKLMHDWKELFFNAKPIYEQASVKTLPANPSREQLTELEKRDLLDTNDYEEYKNMVGEWALPEEMVDNLPPSNNCILGHILHRLAEKSLPPRAESTTPELPSFAVKGCLLGKTLSGKTTILRSLQKDFPIQILSIDTLVQEAIQAFHDNEKVSEVLPIQKNDEEDALPVLQEEIKESQDPQHVFSAGPVSDEVLPETEGETMLSANADKTPKAEEVKSSDSFLKLTTRAQLGAKSEQLLKKGKSIPDVLLVDIIVNAINEIPVNQDCILDGFPMTLNQAQLLEEALTGCNRNLTEVERKKAQKSTLAIDPATSKEIPLPSPAFDFVILLDVSDTSSMSRMNDIIAEELSYKTAHEDISQRVAAENQDKDGDQNLRDQIQHRIIGFLDNWPLLEQWFSEPENILIKINAEIDKESLCEKVKEILTTEIAKKKNKVEKKLEEKEAEKKAAASLAELPLPTPPPAPPPEPEKEKEIHQSHVASKTPTAKGKPQSEAPHGKQESLQEGKGKKGETALKRKGSPKGKSSGGKVPVKKSPADSTDTSPVAIVPQPPKPGSEEWVYVNEPVPEEMPLFLVPYWELIENSYINTIKTVLRHLREDQHTVLAYLYEIRTSFQEFLKRPDHKQDFVAQWQADFNSLPDDLWDDEETKAELHQRVNDLRDRLWDICDARKEEAEQERLDIINESWLQDTLGMTMNHFFSLMQAELNRFQDTKRLLQDYYWGMESKIPVEDNKRFTRIPLVQLDSKDNSESQLRIPLVPRISISLETVTPKPKTKSVLKGKMDNSLENVESNFEADEKLVMDTWQQASLAVSHMVAAEIHQRLMEEEKENQPADPKEKSPQMGANKKVKKEPPKKKQEDKKPKGKSPPMAEATPVIVTTEEIAEIKRKNELRVKIKEEHLAALQFEEIATQFRLELIKTKALALLEDLVTKVVDVYKLMEKWLGERYLNEMASTEKLTDVARYHIETSTKIQNELYLSQEDFFINGNIKVFPDPPPSIRPPPVEKEEDGTLTIEQLDSLRDQFLDMAPKGIIGNKAFTDILIDLVTLNLGTNNFPSNWMHLTQPELQELTSLLTVNSEFVDWRKFLLVTSMPWPIPLEEELLETLQKFKAVDKEQLGTITFEQYMQAGLWFTGDEDIKIPENPLEPLPFNRQEHLIEFFFRLFADYEKDPPQLDYTQMLLYFACHPDTVEGVYRALSVAVGTHVFQQVKASIPSAEKTSSTDAGPAEEFPEPEENAAREERKLKDDTEKREQKDEEIPENANNEKMSMETLLKVFKGGSEAQDSNRFASHLKIENIYAEGFIKTFQDLGAKNLEPIEVAVLLKHPFIQDLISNYSDYKFPDIKIILQRSEHVQGSDGERSPSRHTEEKK

Gene
SPEF2
Protein
Sperm flagellar protein 2
Organism
Sus scrofa
Length
1812 amino acids
Function
Required for correct axoneme development in spermatozoa (PubMed:16549801, PubMed:19889948). Important for normal development of the manchette and sperm head morphology. Essential for male fertility. Plays a role in localization of the intraflagellar transport protein IFT20 to the manchette, suggesting function as an adapter for dynein-mediated protein transport during spermatogenesis. Also plays a role in bone growth where it seems to be required for normal osteoblast differentiation (By similarity).
Mass
208.804 kDa
Sequence
MSEILCHWLNQELKVSQTVSPKSFAKAFSSGYLIGEVLHKYELQDDFAEFSEKRISSAKLNNFSRLEPTLHLLGVQFDQNVAHDIITEKPGVAMKLLYQLYIALQRKKKSGLTGVELQTMQPLTNTKLQNMKSEAFRDRLRNLIPRQTDVSLMRVSHRFQEKYKYKDEDLVHTHLKKLENFQKLQEEQRSFNIEKQRLSRRRQNEIMAQIQAAIIQIPKPASNRTLKALDAQKMMKKKKEAEDVANEIKKFEALIKKDLQAKESASKTSLDAAGQTTTDLLNTYSDDEYIKKIQKRLEEDAFAREQREKRRRRLLMDQLIAHEAQEEAYREEQLVSRLMRQSQQERRIAVQLMHVRHEKEVLWQNRIFREKQYEERRLKDFQDALDREAALAKQAKIDYEEQALREKEMHEQIAAERVQARYKKHYSICAEILDQILDLSTKVADYRMLTNNLIPYKLMHDWKELFFNGMPIYEQASLKHLSAKPSTEQLIELEKRDLLDNNDYEEYKNMVGEWALPEEMVDNIPPSDNRILGHVIHRLIEHSLPPQVESTAPELPSFAIKGCLLGKTFSGKTTALKFLQKYFPIEVLSIDTLVQEAIQAFHNNEKVSGALQLQKAAEEKASPVRQESGDRSQNLHNVLSAEGTPETEDETRLSTKKTPKAEEVIASASLSELTTRAQLGAKSEKLLKKGKSISDTLLVSIVVNAINQIPIYKGWILDGFPMTLNQAKLLEEALTGFNRNLIELEGKKSQISTLAVDPTASREVPLPPSAFDFVMLLDISDNTSLNRMNDIMAEAFLSETPHENINQRVAAENQDMDEDQNLRDQIQHRIIGFWDHWPSLEQWFTEPENILIKMNAEVDEQSLCQKVKEMFMAEIMKKENKAKKKSEEKEAEKKEEFSLPEATPPTPPAPPPSEPEKEKEAHPPHERSKTPTAKGKPASEPPHGNRESPQEGKGKKSETSPKRKGSPRGKSPGGKAPVKKSPADSTDVSPVPAVPPPSKPGSEEWVFVNEPIPEEIPLFLVPYWKLIENSYINSIKTVLRHLREGQHTVLAYLYDTRTGFQQFLRRPDHKQNFVSQWQADFNSLPDDLWEDEETKAELHQRVNDLRDRLWDICDARKEEAEQERLDIINESWLQDSTGIAMNHFFSLMQAELNRFQDTKRLLQDYYRGMECKIPTDDTKRFTRIPLVQLDNKDTLEFQLRIPLVPRRSISPESALSKPKIKALLKGNIDYSLENVELNFEADEKVVMDTWQQASLAVSHMVAAEIHQRLMEEEKENQPADTKEKPPQAAANKKVKKEPPKKKREDKKGKGKSPPMAESAPVITVEEIAEMERKNELRLRIKEEHLAALQFEERATQFRLELIKTKALAFLEDLVTKAVDVYKLMEKWLGERYLNEMASVEKLTEVARYHIETSTKIQNELYLDQEDFFINGNIKVFPDPPPPVRPPPVEKEENGTLTIEQLDNLRDQFLDIAPKGVIGNKAFADILLDLVTLNLGTNNFPSSWMHLTQPELQELASLLVINSELVDWRKFLLVAALPWPIPLEEELLETLQRFKAVDEEQLGTVTFEQYLQAGLWFTGDKDIKIPANPLEPLPFNRQEHLIEFFFRLFADHDKDPPRLDYTEMLLYFACHPDGMEGVYRALSVATGSHVFQPIETPVLVAEKTSSFIDMSPTEEYPEPEDNFISEERELQEEGEEKEEDIPENANTEMISMETLLKVFRGGNEPQDTNRFASYPKTESIYSENFIKVFQDLGSKNLEPIEVAVLLKHPFIQDLIRSYPDYKIPDIKVVLQRSEHIQGSDGESSPSRLTEEKK

Gene
Spef2
Protein
Sperm flagellar protein 2
Organism
Rattus norvegicus
Length
1801 amino acids
Function
Required for correct axoneme development in spermatozoa. Important for normal development of the manchette and sperm head morphology. Essential for male fertility. Plays a role in localization of the intraflagellar transport protein IFT20 to the manchette, suggesting function as an adapter for dynein-mediated protein transport during spermatogenesis. Also plays a role in bone growth where it seems to be required for normal osteoblast differentiation.
Mass
208.159 kDa
Sequence
MSEILCQWLNQELKVSRTVSPKSFAKTFSNGYLIGEVLFKFELQSDFSEFSESRVSTAKLNNFSRLQPTLHLLGVQFDQNVAQSIITEKPGAATKLLYQLYIALQKKKKTGLTGLEIQTMQPQTNQRLQALKSEAFRERLKNLIPRQTDFNLMRVTCRFQEKCKQMKEDLARMHFEKFEKIQKLEEEQRHFNIEKQRLNRRRQNEIMAKIQAAIIQIPKPEPNRTLKAIEAQKLMKKKKEAEDVANEIKKFEALIKKDLQTRESISKTSLDTIDQTAAELLNTYSDDDYIKKIQKRLEEDAFAREQREKRRRRLLMDQLIAHEAQEEAYREEQLIHRLMRQSQQERRIAVQLMHVRHEKEVLWQNRIFREKQFEERRLKDFQDALDREAALTKQAKIDFAEQTLRAKEIHEKIAMERAQQRYEKHYGICAEILDQILDLCTKVADYRLLTNNLIPHKMMRDWKELFFSGNPIYEQTSHTHGQTESTEDHHVELNKRNLLDSKDYEDYKNMTGEWALPEDMANSSPPSNNNILGHVLLRLIENSYPSEKEVADTELPSFAVKGCLLGKTLSGKTTILKALQNDIPIQVLSIDTLVQEAIQAFNDGEKSSKAPSMHEDVKGDPEVDQKEMIIPQDKNELTDTQVPGEAAPQKEGTKSSDFEQFRPSNSFLSLSMRAQLGAKSELMLRRGKSVPDVLLVNILVNAIKKIPVNQSWVLDGFPMTVNQAKLLEEALTGYKRKSLQLKKKKAQMPTLALSPTTSKEVPFLPSAFDFAILLDISDNSSLARINDIIAKEISHEISHENVSGPTITSSEEKSEDRNLRDHIQHRIVGFLDNWPLLEEWFTEPRNILKKVNAEIDEAFLCQKIKEIFATEVSNKKIKVEKKLEEKETEKKSAVSPTEPPTPTPPLASEAEKEKEVHQAKPSGKGKTQSVSPKGKAQGGKISVKKSPIDSTEVSPTLIAMPTTKPGSEEWVYVTEPIPEELPSFLVPYWELIEKTYISHIKTVLRQLRESQHTVLSYLYETRTSFQEFLRRPDHKQDFVSQWQADFNSVPEDLWEDEETKAELHQRVNDLRDRLWDICEARKEEAEQERLDIINESWLQDYIGITMNHFFSLMQAEVNRFQDTKRLLQDYYRAMESRIPLEDNKKFTRIPLVQLDGKEISEHQLRIPLVPRISSSPENVSMRPKVKALLKGRFDPPLESLEANFEGDEKIVLDTWQQASLAISQMVAAEVHQRLAEEEKEQPQLDPKEKSPQSGTNKKAKKEKEQAKKEKEQAKKEKEQAKKEKEPPKKKMAEKKGKGKSSPVVEVSPVTITPEEMAEMERKNELKLKIKEEHLAALQTEEQATQFRLELIKSKALSILEDLVTKVIEVYRFMEKWLGKRYLNEMASIQKLTEVARYHIETATKIQNEIYLSQEDFYINGDIKVFPDPPPPTRPPPVEKEENGTLTIEQLDNLRDQFLDMAPKGIIGNKAFTDILLDLVTLNLGTNNLSSSWMHLTQLDLQEITSLLTVNTEFVDWRKFLMVAAMPWPIPLEEELLETLQRFKATDEAQTGTITFEQYKQAGLWFSGDEDIKIPENPLEPLPFNRQEHLIEFFFRLFADSEKDPPQLDYTQMLLYFACHPDTLEGVYRALSVAVGTHIFRQVETPMLTAEKTSISSVSPNEEFPEAEENSTREELKEEKDERDQKEEEIPENANTEKISMETLLKVFGGGNEVLDANRFASYLKTENIYSENLIKTFQDLGAKNLEPIEVNILLKHPYIQDLITNYVDYKIPDIKMILQRSEHAQGSDGERSPSRLTDEKK

Gene
Spef2
Protein
Sperm flagellar protein 2
Organism
Mus musculus
Length
1724 amino acids
Function
Required for correct axoneme development in spermatozoa (PubMed:21715716, PubMed:28619825). Important for normal development of the manchette and sperm head morphology (PubMed:28619825). Essential for male fertility (PubMed:21715716, PubMed:28619825). Plays a role in localization of the intraflagellar transport protein IFT20 to the manchette, suggesting function as an adapter for dynein-mediated protein transport during spermatogenesis. Also plays a role in bone growth where it seems to be required for normal osteoblast differentiation (PubMed:28619825).
Mass
197.972 kDa
Sequence
MSEILCQWLNQELRVSRTVSPKSFAKAFSNGYLIGEVLFKFELQSDFAEFSESRGSTAKLNNFSRLQPTLHLLGLQFDQNVAQSIITEKPGAATKLLYQLYIALQKKKKTGLTGLEIQTMQPQTNLRLQTLKSEAFREQRLNRRRQNEIMAKIQAAIIQIPKPESNRTLKAIEAQKLMKKKKEAEDVANEIKKFEALIKKDLQIKESVSKTSLETTDQTTAELLNTYSDDDYIKKIQKRLEEDAFAREQREKRRRRLLMDQLMAHEAQEEAYREEQLIHRLMRQSQQERRIAVQLMHVRHEKEVLWQNRIFREKQFEERRLKDFQDALDREAALAKQAKIDFAEQTLREKEIHEKISVERAQQRYKKHYGICAEILDQMLDLCTKVADYRLLTNNLIPHKMMHDWKELFFSGIPIYEQTSLTHGQTEPTEDHRAEVKKRNLLDSKDYEDYKNMVGEWALPEDMVNSSPPSNNSILGHVLLRLIEKADPSASNAEATELPSLAVKGCILGKTLSGKTTVLKSLQNDFPVHVLSIDTLVQEAIQAFHERQKSGKTPPTQEDDKRDPVVNQEKVSKTQDKNVLAVSPVPGDRTSQKEGVKINEFEQFRSSDSFLSLSMRAQLGAKSELMLRRGKSIPDILLVSILVNAIKEIPVDQSWVLDGFPITLNQAKLLEEALTGYKRKFLQLKKKKEQMPTLALDPSTSTEVSLLPSALDFVILLDISDNSSLARTNDIIAKEISHEISHENVGRPGTGTSQDNKSEDRNLRDHIQHRIVGFLDNWPLLEEWFTQPKNILTKVNAEIDEALLCQKVKEIFATETVNKKIKVEKTLEEKETEKKAGAPPAEPPAMSPPLSSEAEKDKELHQAKTPGKGKTQSVSPKGKAQGGKVSVKKSPVGSAEVSPTPTAPPPPKAGTEEWVYVNEPIPEELPSFLVPYWELIEKSYINHIKTVLRHLRERQHNVLSYLYETRTSFQEFLRRPDHKQDFVSQWQADFNSVPEDLWEDEETKAELHQRVNDLRDRLWDICEARKEEAEQERLDIINESWLQDSIGITMNHFFSLMQAEVNRFQDTKRLLQDYYRAMESKIPLEDSKKFTRVPLVQLDGKEISESQLRIPLVPRISNSPENSAVKPKVGTFLKGRSDPPLEVLEANFEIDEKILLDTWQQASLAISNMVAAEVHQRLTEEEKEPPQLDSKEKSPQSGANKKAKKEKEAPKKKKTDKKGKGKSSPVAEVSPVTVTPEEMAEMEKRNELRLRIKEEHLAALQTEEQAAQFRLELIKLKALSVLEDLVTKVIDVYRLMEKWLGKRYLNEMASIQKLTELARYHIETATKIQNEIYLSQEDFYINGDIKVFPDPSPPTRPPPVEREENGTLTIEQLDNLRDQFLDMAPKGIIGNKAFSDILLDLITLNLGTNNFPSSWMHLSQLDLQEITSLLTVNTEFVDWRKFLMVTAMPWPMALEDELLDTLQRFKALDEAQTGTITYEQYKQAGLWFSGDEDIKIPENPLEPLPFNRQEHLIEFFFRLFADCEKEPPQLDYTQMLLYFACHPDTLEGVYRALSVAVGTHIFRQVETPMLMAEKTSISTVSPIEEFPETEESSAKEDRELKEEKDDQKEEEIPENANTEKISMETLLKVFGGGNEVLDANRFASYLKSENIYAENFIKTFQDLGARNLEPIAVNILLKHPYIQDLIANYVDYKFPDIKMILQRSEHAQGSDGERSPSRLTDEKK