FUNPEP: Information system for "low complexity sequence regions".

The immunoglobulin sequences from SWISSPROT. The multiple sequence alingment result is here.

>KV3D_HUMAN
EIVLTQSPGT LSLSPGERAT LSCRASQSVS NSFLAWYQQK PGQAPRLLIY VASSRATGIP 
DRFSGSGSGT DFTLTISRLE PEDFAVYYCQ QYGSSPSTFG QGTKVELKR
>KV3B_HUMAN
EIVLTQSPGT LSLSPGERAT LSCRASQSVS NSYLAWYQQK PGQAPRLLIY GASSRATGIP 
DRFSGSGSGT DFTLTISRLE PDDFAVYYCQ QYGSSPQTFG QGSKVEIKR
>KV3L_HUMAN
METPAQLLFL LLLWLPDTTG EIVLTQSPGT LSLSPGERAT LSCRASQSVS SSYLAWYQQK 
PGQAPRLLIY GASSRATGIP DRFSGSGSGT DFTLTISRLE PEDFAVYYCQ QYGTSPRTFG 
QGTKVEIKR 
>KV3M_HUMAN
METPAQLLFL LLLWLPDTTG EIVLTQSPGT LSLSPGERAT LSCRASQSVS SSYLAWYQQK 
PGQAPRLLIY GASSRATGIP DRFSGSGSGT DFTLTISRLE PXDFAVYYCQ QYGSSPWTFG 
QGTKVEIKR 
>KV3E_HUMAN
EIVLTQSPGT LSLSPGERAT LSCRASQSVS SGYLGWYQQK PGQAPRLLIY GASSRATGIP 
DRFSGSGSGT DFTLTISRLE PEDFAVYYCQ QYGSLGRTFG QGTKVEIKR
>KV3G_HUMAN
EIVLTQSPGT LSLSPGERAT LSCRAALLSS RGYLAWYQQK PGQAPRLLMY GASSRATGIP 
DRFSGSGSGT DFTLTISRLE PEDFAVYYCQ QYGSSPRSFG QGTKVEIKR
>KV3A_HUMAN
ZIVLTZSPGT LSLSPGZRAA LSCRASQSLS GNYLAWYQQK PGQAPRLLMY GVSSRATGIP 
DRFSGSGSGA DFTLTISRLZ PEDFAVYYCQ QYGSSPFTFG QGSKLEIK
>KV3K_HUMAN
METPAQLLFL LLLWLPDTTG EIVLTQSPGT LSLSPGESAT LSCRASQSVS SNLAWYQQKR 
GQSPRLLIRD ASSRANGIPD RFSGSGSGTD FTLIISRLEP EDFAVYYCQQ YSTSPYTFGQ 
GTKLEIKR 
>KV3C_HUMAN
VPSGEIVLTQ SPGTLSLSPG ERATLSCRAS QSVSSSYLAW YQQKPGQAPR LLIYGATSRA 
TGIPDRFSGS ASGTDFTLTI SRLEPEDFAV YYCQQYGNSQ 
>KV3F_HUMAN
EIVMTQSPVT LSVSPGERAT LSCRASQSIS NSYLAWYQQK PSGSPRLLIY GASTRATGIP 
ARFSGSGSGT EFTLTISSLQ SEDFAVYYCQ QYNNWPPTFG QGTRVEIKR
>KV3H_HUMAN
MEAPAQLLFL LLLWLPDTTG EIVMTQSPAT LSVSPGERAT LSCRASQSVS NNLAWYQQKP 
GQPPRLLIYG ASTRATGIPA RFSGSGSGTE FTLTISRLQS EDFAVYYCQQ YNNWPPWTFG 
QGTRVEIKR 
>KV3I_HUMAN
MEAPAQLLFL LLLWLPDTTG EIVLTQSPAT LSLSPGERAT LSCRASQSVS SYLAWYQQKP 
GQAPRLLIYD ASNRATGIPA RFSGSGSGTD FTLTISSLEP EDFAVYYCQQ RSNWP
>KV4A_HUMAN
DIVMTQSPDS LAVSLGERAT INCKSSQSVL YSSNSKNYLA WYQQKPGQPP KLLIYWASTR 
ESGVPDRFSG SGSGTDFTLT ISSLQAEDVA VYYCQQYYST PYSFGQGTKL EIKR
>KV3J_HUMAN
MEAPAQLLFL LLLWLPDTTR EIVMTQSPPT LSLSPGERVT LSCRASQSVS SSYLTWYQQK 
PGQAPRLLIY GASTRATSIP ARFSGSGSGT DFTLTISSLQ PEDFAVYYCQ QDHNLP
>KV4C_HUMAN
MVLQTQVFIS LLLWISGAYG DIVMTQSPDS LAVSLGERAT INCKSSQSIL YSSDNKNYLA 
WYQQKPGQPP KLLIYWASTR ESGVPDRFSG SGSGTDFTLT ISSLQAEDVA VYYCQQYYNL 
PWTFGQGTKV EIKR
>KV1H_HUMAN
DIQMTQSPSS LSASVGDRVT ITCRASQSIS SYLSWYQQKP GKAPQVLIYA ASSLPSGVPS 
RFSGSGSGTD FTLTISSLQP EDFATYYCQQ NYITPTSFGQ GTRVEIKR
>KV1M_HUMAN
DIQMTQSPSS LSVSVGDRVT ITCQASQNVN AYLNWYQQKP GLAPKLLIYG ASTREAGVPS 
RFSGSGSGTD FTFTISSLQP EDIATYYCQQ YNNWPPTFGQ GTKVEVKR
>KV4B_HUMAN
MVLQTQVFIS LLLWISGAYG DIVMTQSPDS LAVSLGERAT INCKSSQSVL YSSNNKNYLA 
WYQQKPGQPP KLLIYWASTR ESGVPDRFSG SGSGTDFTLT ISSLQAEDVA VYYCQQYDTI 
PTFGGGTKVE IKR
>KV1F_HUMAN
DIQMTQSPST LSASVGDRVT ITCRASQSIN TWLAWYQQKP GKAPKLLMYK ASSLESGVPS 
RFIGSGSGTE FTLTISSLQP DDFATYYCQQ YNSDSKMFGQ GTKVEVKG
>KV1K_HUMAN
DIQMTQSPST LSVSVGDRVT ITCEASQTVL SYLNWYQQKP GKAPKLLIYA ASSLETGVPS 
RFSGQGSGTB FTFTISSVZP ZBFATYYCQZ YLDLPRTFGQ GTKVDLKR
>KV1V_HUMAN
DIQLTQSPSS LSASVGDRVT ITCRASQSVY NYVAWFQQKP GKAPKSLIYD ASTLQSGVPS 
NFTGSGSGTD FILTISSLQP EDFATYYCQQ YNSYPYTFGQ GTKVQIKR
>KV1L_HUMAN
DIQMTQSPST QPASVGDRVT ITCRASQSIN IWLAWYQQKP EKAPKLLIYK ASTLETGVPS 
RFSGSGSGTE FTLTINSLQP DDFATYYCQQ YSRYPYTFGQ GTKLDIKR
>KV1R_HUMAN
DIQMTQSPSS LSASVGDRVT ITCRASQGIR NDLTWYQQKP GTAPKRLIYG ATSLQSGVPS 
RFSGSGSGTE FTLTINSLQP EDFATYYCLQ YSSFPWTFGQ GTKVEVKR
>KV1D_HUMAN
DIQMTQSPST LSASVGDRVA ITCRASQNIS SWLAWYQQKP GKAPKVLIYK SSSLESGVPS 
RFSGSGSGTD FTLTISSLZP BBFATYYCQQ YNTFFTFGPG TKVDIKR
>KV1E_HUMAN
BIZMTQSPSS LSASVGDRVT ITCRAGQSVN KYLNWYQQKP GKAPKVLIFA ASSLKSGVPS 
RFSGSGSGTD FTLTISGLLP EDFATYYCQQ SYTTPYTFGP GTKVEMTR
>KV1N_HUMAN
DIQMTZSPSS LSASVGBRVT ITCRASZTIS SYLBWYZZKP GKAPBLLIYA ASBLHSGVPS 
RFSGSGSGTB FTFTISSLZP ZBFATYYCZZ SYSSPTTFGZ GTRLZIKR
>KV1Y_HUMAN
DIQMTQSPSS LSASVGDRVT ITCRASQDIT NYVNWFQQRP GQAPKVLIYG ASILETGVPS 
RFSGSGSGTD FTFTISSLQP EDIATYYCQQ YDTLPLTFGG GTKVDIKR
>KV1W_HUMAN
MDMRVPAQLL GLLLLWLRGA RCDIQMTQSP SSLSASVGDR VTITCRASQS ISNYLNWYQQ 
KPGKAPKLLI YAASSLQSGV TSRFSGSGSG TDFTLTISSL QPEDSATYYC QQSYSTLITF 
GQGTRLEIK 
>KV1U_HUMAN
DIQMTQSPSS LSATVGDRVT LLCEASQSVL ESGNTFLAWY QQKPKKAPKL LIYDASNLET 
GVPSRFSESG SGTDFTFTIS GLZPZBFAVY YCQZYDTLPS TFGVASKVES KR
>KV1G_HUMAN
DIQMTQSPSS LSASVGDRVT IICRASQGIR NDLTWYQQKP GKAPKELIYA ASNLQSGVPS 
RFSGSGAGTE FTLTISSLQP EDFATYYCLQ QNSYPRSFGQ GTKVEIKR
>KV2E_HUMAN
GSSGDIVMTQ SPLSLPVTPG EPASISCRSS QSLLHSNGYN YLDWYLQKPQ QSPQLLIYLG 
SNRASGVPDR FSGSGSGTDF TLKISRVEAE DVGVYYCMQG LQTPQTFGQG TKVEIKR
>KV5A_MOUSE
MHHTSMGIKM ESQIQVFVFV FLWLSGVDGD IVMTQFAGVD GDIVMTQSHK FMSTSVGDRV 
SITCKASQDV STTVAWYQQK PGQSPKLLIY SASYRYTGVP DRFTGSGSGT DFTFTISSVQ 
AEDLAVYYCQ QHYSTPPTFG GGTKLEIKR
>KV1B_HUMAN
DIQMTQSPSS LSASVGDRVT ITCQASQDIS DYLNWYQQKP GKAPKLLIYD ASNLESGVPS 
RFSGGGSGAH FTFTISSLQP EDIATYYCQQ YDYLPWTFGQ GTKVEIKR
>KV1P_HUMAN
DIQMTQSPSS LSASVGDRVT ITCQASQDIS IFLNWYQQKP GKAPKLLIYD ASKLEAGVPS 
RFSGTGSGTD FTFTISSLQP EDIATYYCQQ FDNLPLTFGG GTKVDFKR
>KV1S_HUMAN
DIQMTQSPSS VSASVGDRVT ITCRASQDIS HWLAWYQQKS GKAPKLLIYS ASSLENGVPS 
RFSGSGSGTE FTLTISSLQP EDFATYFCQQ AHSVPLTFGG GTTVDIKR
>KV2D_HUMAN
DIVMTQSPLS LPVTPGEPAS ISCRSSQSLL HSDGFDYLNW YLQKPGQSPZ LLIYALSNRA 
SGVPDRFSGS GSGTDFTLKI SRVEAEDVGV YYCMZALQAP ITFGQGTRLE IKR
>KV3K_MOUSE
NIVLTQSPAS LAVSLGQRAT ISCRASESVD SYGNSFMHWY QQKPGQPPKL LIYLASNLES 
GVPARFSGSG SRTDFTLTID PVEADDAATY YCQQNNEDPL TFGAGTKLEL K
>KV1A_HUMAN
DIQMTQSPSS LSASVGDRVT ITCQASQDIN HYLNWYQQGP KKAPKILIYD ASNLETGVPS 
RFSGSGFGTD FTFTISGLQP EDIATYYCQQ YDTLPRTFGQ GTKLEIKR
>KV3N_MOUSE
DIVLTQSPAS LAVSLGQRAT ISCKASQSVD YDGDSYMNWY QQKPGQPPKL LIYAASNLES 
GIPARFSGSG SGTDFTLNIH PVEEEDAATY YCQQSNEDPL TFGAGTKLEL K
>KV3U_MOUSE
DIVLTQSPAS LAVSLGQRAT ISCRASKSVS TSGYSYMHWY QQKPGQPPKL LIYLASSLES 
GVPARFSGSG SGTDFTLNIQ PVEEEDAAIY YCQHSRELPL TFGAGTKLEL K
>KV1Q_HUMAN
DIQMTQSPSS LSASVGDRVT ITCQASQDIR KHLNWYDQKP GKAPRLLIYG ASTLETGVPS 
RFSGSGSGTD FTLTISTLQP EDIGNYYCQQ YDNVPITFGQ GTRVENKG
>KV3H_MOUSE
DIVLTQSPAS LAVSLGQRAT ISCRASESVD SYGNSFMHWY QQKPGQPPKL LIYRASNLES 
GIPARFSGSG SRTDFTLTIN PVEADDVATY YCQQSNEDPY TFGGGTKLEI K
>KV3M_MOUSE
DIVLTQSPAS LAVSLGQRAT ISCKASQSVD YDGDSYMNWY QQKPGQPPKL LIYAASNLES 
GIPARFSGSG SGTDFTLNIH PVEEEDAATY YCQQSNEDPF TFGSGTKLEI K
>KV3J_MOUSE
NIVLTQSPAS LAVSLGQRAT ISCRASESVD SYGNSFMHWY QQKPGQPPKL LIYLASNLES 
GVPARFSGSG SRTDFTLTID PVEADDAATY YCQQNNEDPY TFGGGTKLEI K
>KV3O_MOUSE
DIVLTQSPAS LAVSLGQRAT ISCKASQSVD YDGDSYMNWY QQKPGQPPKL LIYTASNLES 
GIPARFSGSG SGTDFTLNIH PVEEEDAATY YCQQSNEDPW TFGSGTKLEI K
>KV1C_HUMAN
DIQMTQSPSP LSASVGDSVT ITCQASQDIR NSLIWYQQKP GKAPKFLIYD AENLEIGVPS 
RFRGSGSGTD FALSISSLQP EDFATYYCQQ YYNLPYTFGQ GTKLEIKR
>KV3I_MOUSE
METDTLLLWV LLLWVPGSTG NIVLTQSPAS LAVSLGQRAT ISCRASESVD SYGNSFMHWY 
QQKPGQPPKL LIYLASNLES GVPARFSGSG SRTDFTLTID PVEADDAATY YCQQNNEDPW 
TFGGGTKLEI K
>KV1O_HUMAN
DIQMTQSPSS LSASVGDRVT ITCQASQDII KYLNWYQQTP GKAPKLLIYE ASNLQAGVPS 
RFSGSGSGTD YTFTISSLQP EDIATYYCQQ YQSLPYTFGQ GTKLQITR
>KV3L_MOUSE
DIVLTQSPAS LAVSLGQRAT ISCKASQSVD YTGESYMNWY QQNPGQSPKL LIYAASNLES 
GIPARFSGSG SGTDFTLNIH PVEEEDAATY YCQQSNEDPY TFGGGTKLEI K
>KV3S_MOUSE
DIVLTQSPAS LAVSLGQRAT ISCRASKSVS TSGYSYMHWY QQKPGQPPKL LIYLASNLES 
GVPARFSGSG SGTDFTLNIH PVEEEDAATY YCQHSRELPL TFGAGTKLEL K