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Conserved domains on  [gi|227631|prf||1708178A]
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hemoglobin alpha1

Protein Classification

hemoglobin alpha subunit family protein( domain architecture ID 10172381)

hemoglobin alpha subunit family protein is either one of alpha, zeta, mu, theta, or related hemoglobin (Hb) subunits. Hb is the oxygen transport protein of erythrocytes. It is an allosterically modulated heterotetramer. Hemoglobin A (HbA) is the most common Hb in adult humans, and is formed from two alpha-chains and two beta-chains (alpha2beta2). An equilibrium exists between deoxygenated/unliganded/T(tense state) Hb having low oxygen affinity, and oxygenated /liganded/R(relaxed state) Hb having a high oxygen affinity. Various endogenous heterotropic effectors bind Hb to modulate its oxygen affinity and cooperative behavior, e.g. hydrogen ions, chloride ions, carbon dioxide and 2,3-bisphosphoglycerate. Hb is also an allosterically regulated nitrite reductase; the plasma nitrite anion may be activated by hemoglobin in areas of hypoxia to bring about vasodilation.

Graphical summary

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List of domain hits

 Name Accession Description Interval E-value
Hb-alpha-like cd08927
Hemoglobin alpha, zeta, mu, theta, and related Hb subunits; Hb is the oxygen transport protein ...
 2-139 6.97e-76

Hemoglobin alpha, zeta, mu, theta, and related Hb subunits; Hb is the oxygen transport protein of erythrocytes. It is an allosterically modulated heterotetramer. Hemoglobin A (HbA) is the most common Hb in adult humans, and is formed from two alpha-chains and two beta-chains (alpha2beta2). An equilibrium exists between deoxygenated/unliganded/T(tense state) Hb having low oxygen affinity, and oxygenated /liganded/R(relaxed state) Hb having a high oxygen affinity. Various endogenous heterotropic effectors bind Hb to modulate its oxygen affinity and cooperative behavior, e.g. hydrogen ions, chloride ions, carbon dioxide and 2,3-bisphosphoglycerate. Hb is also an allosterically regulated nitrite reductase; the plasma nitrite anion may be activated by hemoglobin in areas of hypoxia to bring about vasodilation. Other Hb types are: HbA2 (alpha2delta2) which in normal individuals, is naturally expressed at a low level; Hb Portland-1 (zeta2gamma2), Hb Gower-1 (zeta2epsilon2), and Hb Gower-2 (alpha2epsilon2), which are Hbs present during the embryonic period; and fetal hemoglobin (HbF, alpha2gamma2), the primary hemoglobin throughout most of gestation. These Hbs types have differences in O2 affinity and in their interactions with allosteric effectors.


:

Pssm-ID: 381263  Cd Length: 140  Bit Score: 221.67  E-value: 6.97e-76
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 227631     2 LSSADKTNIKTAWGAIGSHAADHGAEALERMFLSFPTTKTYFPHFDMSHGSGQI-AHGKKVADALTNAVGHIDDMPGALS 80
Cdd:cd08927   1 LSAADKALIKALWGKIAGHAEAIGAEALARMFLSFPQTKTYFPHFDLSAGSAQVkAHGKKVMDALGDAVKHLDDLPGALS 80

                        90       100       110       120       130       140
                ....*....|....*....|....*....|....*....|....*....|....*....|
gi 227631    81 ALSDLHAHKLRVDPVNFKLLSH-LLVTLASHHPAEFTPAVHASLDKFFAAVSTVLTSKYR 139
Cdd:cd08927  81 KLSDLHAYKLRVDPVNFKLLSHcILVTLAAHLPEDFTPEVHAALDKFLAAVSHVLSSKYR 140
 
Name Accession Description Interval E-value
Hb-alpha-like cd08927
Hemoglobin alpha, zeta, mu, theta, and related Hb subunits; Hb is the oxygen transport protein ...
 2-139 6.97e-76

Hemoglobin alpha, zeta, mu, theta, and related Hb subunits; Hb is the oxygen transport protein of erythrocytes. It is an allosterically modulated heterotetramer. Hemoglobin A (HbA) is the most common Hb in adult humans, and is formed from two alpha-chains and two beta-chains (alpha2beta2). An equilibrium exists between deoxygenated/unliganded/T(tense state) Hb having low oxygen affinity, and oxygenated /liganded/R(relaxed state) Hb having a high oxygen affinity. Various endogenous heterotropic effectors bind Hb to modulate its oxygen affinity and cooperative behavior, e.g. hydrogen ions, chloride ions, carbon dioxide and 2,3-bisphosphoglycerate. Hb is also an allosterically regulated nitrite reductase; the plasma nitrite anion may be activated by hemoglobin in areas of hypoxia to bring about vasodilation. Other Hb types are: HbA2 (alpha2delta2) which in normal individuals, is naturally expressed at a low level; Hb Portland-1 (zeta2gamma2), Hb Gower-1 (zeta2epsilon2), and Hb Gower-2 (alpha2epsilon2), which are Hbs present during the embryonic period; and fetal hemoglobin (HbF, alpha2gamma2), the primary hemoglobin throughout most of gestation. These Hbs types have differences in O2 affinity and in their interactions with allosteric effectors.


Pssm-ID: 381263  Cd Length: 140  Bit Score: 221.67  E-value: 6.97e-76
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 227631     2 LSSADKTNIKTAWGAIGSHAADHGAEALERMFLSFPTTKTYFPHFDMSHGSGQI-AHGKKVADALTNAVGHIDDMPGALS 80
Cdd:cd08927   1 LSAADKALIKALWGKIAGHAEAIGAEALARMFLSFPQTKTYFPHFDLSAGSAQVkAHGKKVMDALGDAVKHLDDLPGALS 80

                        90       100       110       120       130       140
                ....*....|....*....|....*....|....*....|....*....|....*....|
gi 227631    81 ALSDLHAHKLRVDPVNFKLLSH-LLVTLASHHPAEFTPAVHASLDKFFAAVSTVLTSKYR 139
Cdd:cd08927  81 KLSDLHAYKLRVDPVNFKLLSHcILVTLAAHLPEDFTPEVHAALDKFLAAVSHVLSSKYR 140
Globin pfam00042
Globin;
26-134 1.13e-26

Globin;


Pssm-ID: 459646 [Multi-domain]  Cd Length: 117  Bit Score: 96.20  E-value: 1.13e-26
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 227631      26 AEALERMFLSFPTTKTYFPHFDMSHGSGQ-----IAHGKKVADALTNAVGHIDD---MPGALSALSDLHAHKLRVDPVNF 97
Cdd:pfam00042   1 AEILARLFTAYPDTKAYFPRFEKSADDLKgspkfKAHGKKVLAALGEAVKHLDDlaaLNAALKKLGARHKEKRGVDPANF 80

                          90       100       110
                  ....*....|....*....|....*....|....*..
gi 227631      98 KLLSHLLVTLASHHPAEFTPAVHASLDKFFAAVSTVL 134
Cdd:pfam00042  81 KLFGEALLVVLAEHLGEFTPETKAAWDKALDVIAAAL 117
Hmp COG1017
Hemoglobin-like flavoprotein [Energy production and conversion];
2-134 5.79e-09

Hemoglobin-like flavoprotein [Energy production and conversion];


Pssm-ID: 440640 [Multi-domain]  Cd Length: 135  Bit Score: 50.93  E-value: 5.79e-09
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 227631     2 LSSADKTNIKTAWGAIGSHAADHGAEALERMFLSFPTTKTYFPHfDMShgsgqiAHGKKVADALTNAVGHIDDMPGALSA 81
Cdd:COG1017   1 LSPETIALVKASFPLVAPHGEEITARFYERLFELHPELRPLFNG-DMG------EQRKALAAALAAYARNLDNLEALLPA 73

                        90       100       110       120       130
                ....*....|....*....|....*....|....*....|....*....|....*.
gi 227631    82 LSDL-HAH-KLRVDPVNFKLL-SHLLVTLASHHPAEFTPAVHASLDKFFAAVSTVL 134
Cdd:COG1017  74 LERLgRKHvSYGVKPEHYPIVgEALLAALREVLGDAWTPEVAAAWAEAYGLLADVM 129
 
Name Accession Description Interval E-value
Hb-alpha-like cd08927
Hemoglobin alpha, zeta, mu, theta, and related Hb subunits; Hb is the oxygen transport protein ...
 2-139 6.97e-76

Hemoglobin alpha, zeta, mu, theta, and related Hb subunits; Hb is the oxygen transport protein of erythrocytes. It is an allosterically modulated heterotetramer. Hemoglobin A (HbA) is the most common Hb in adult humans, and is formed from two alpha-chains and two beta-chains (alpha2beta2). An equilibrium exists between deoxygenated/unliganded/T(tense state) Hb having low oxygen affinity, and oxygenated /liganded/R(relaxed state) Hb having a high oxygen affinity. Various endogenous heterotropic effectors bind Hb to modulate its oxygen affinity and cooperative behavior, e.g. hydrogen ions, chloride ions, carbon dioxide and 2,3-bisphosphoglycerate. Hb is also an allosterically regulated nitrite reductase; the plasma nitrite anion may be activated by hemoglobin in areas of hypoxia to bring about vasodilation. Other Hb types are: HbA2 (alpha2delta2) which in normal individuals, is naturally expressed at a low level; Hb Portland-1 (zeta2gamma2), Hb Gower-1 (zeta2epsilon2), and Hb Gower-2 (alpha2epsilon2), which are Hbs present during the embryonic period; and fetal hemoglobin (HbF, alpha2gamma2), the primary hemoglobin throughout most of gestation. These Hbs types have differences in O2 affinity and in their interactions with allosteric effectors.


Pssm-ID: 381263  Cd Length: 140  Bit Score: 221.67  E-value: 6.97e-76
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 227631     2 LSSADKTNIKTAWGAIGSHAADHGAEALERMFLSFPTTKTYFPHFDMSHGSGQI-AHGKKVADALTNAVGHIDDMPGALS 80
Cdd:cd08927   1 LSAADKALIKALWGKIAGHAEAIGAEALARMFLSFPQTKTYFPHFDLSAGSAQVkAHGKKVMDALGDAVKHLDDLPGALS 80

                        90       100       110       120       130       140
                ....*....|....*....|....*....|....*....|....*....|....*....|
gi 227631    81 ALSDLHAHKLRVDPVNFKLLSH-LLVTLASHHPAEFTPAVHASLDKFFAAVSTVLTSKYR 139
Cdd:cd08927  81 KLSDLHAYKLRVDPVNFKLLSHcILVTLAAHLPEDFTPEVHAALDKFLAAVSHVLSSKYR 140
Hb cd14765
Hemoglobins; Hb is the oxygen transport protein of erythrocytes. It is an allosterically ...
 6-135 3.18e-50

Hemoglobins; Hb is the oxygen transport protein of erythrocytes. It is an allosterically modulated heterotetramer. Hemoglobin A (HbA) is the most common Hb in adult humans, and is formed from two alpha-chains and two beta-chains (alpha2beta2). An equilibrium exists between deoxygenated/unliganded/T(tense state) Hb having low oxygen affinity, and oxygenated /liganded/R(relaxed state) Hb having a high oxygen affinity. Various endogenous heterotropic effectors bind Hb to modulate its oxygen affinity and cooperative behavior, e.g. hydrogen ions, chloride ions, carbon dioxide and 2,3-bisphosphoglycerate. Hb is also an allosterically regulated nitrite reductase; the plasma nitrite anion may be activated by hemoglobin in areas of hypoxia to bring about vasodilation. Other Hb types are: HbA2 (alpha2delta2) which, in normal individuals, is naturally expressed at a low level; Hb Portland-1 (zeta2gamma2), Hb Gower-1 (zeta2epsilon2), and Hb Gower-2 (alpha2epsilon2), which are Hbs present during the embryonic period; and fetal hemoglobin (HbF, alpha2gamma2), the primary Hb throughout most of gestation. These Hb types have differences in O2 affinity and in their interactions with allosteric effectors.


Pssm-ID: 381278  Cd Length: 131  Bit Score: 156.36  E-value: 3.18e-50
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 227631     6 DKTNIKTAWGaiGSHAADHGAEALERMFLSFPTTKTYFPHFDMSH-GSGQI-AHGKKVADALTNAVGHIDDMPGALSALS 83
Cdd:cd14765   1 EKSTIKALWG--KVNVEEYGAEALARLFVVYPWTKRYFPKFDDSSsGNPKVkAHGKKVLGALGDAVKHLDDLKNTFSDLS 78

                        90       100       110       120       130
                ....*....|....*....|....*....|....*....|....*....|...
gi 227631    84 DLHAHKLRVDPVNFKLLSH-LLVTLASHHPAEFTPAVHASLDKFFAAVSTVLT 135
Cdd:cd14765  79 ELHADKLHVDPENFKLLSDcLIVVLAAHLGKEFTPEVHAAWDKFLAVVAAALS 131
Hb-beta-like cd08925
Hemoglobin beta, gamma, delta, epsilon, and related Hb subunits; Hb is the oxygen transport ...
 6-138 5.17e-34

Hemoglobin beta, gamma, delta, epsilon, and related Hb subunits; Hb is the oxygen transport protein of erythrocytes. It is an allosterically modulated heterotetramer. Hemoglobin A (HbA) is the most common Hb in adult humans, and is formed from two alpha-chains and two beta-chains (alpha2beta2). An equilibrium exists between deoxygenated/unliganded/T(tense state) Hb having low oxygen affinity, and oxygenated /liganded/R(relaxed state) Hb having a high oxygen affinity. Various endogenous heterotropic effectors bind Hb to modulate its oxygen affinity and cooperative behavior, e.g. hydrogen ions, chloride ions, carbon dioxide and 2,3-bisphosphoglycerate. Hb is also an allosterically regulated nitrite reductase; the plasma nitrite anion may be activated by hemoglobin in areas of hypoxia to bring about vasodilation. Other Hb types are: HbA2 (alpha2delta2) which in normal individuals, is naturally expressed at a low level; Hb Portland-1 (zeta2gamma2), Hb Gower-1 (zeta2epsilon2), and Hb Gower-2 (alpha2epsilon2), which are Hbs present during the embryonic period; and fetal hemoglobin (HbF, alpha2gamma2), the primary hemoglobin throughout most of gestation. These Hbs types have differences in O2 affinity and in their interactions with allosteric effectors.


Pssm-ID: 381262  Cd Length: 139  Bit Score: 115.43  E-value: 5.17e-34
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 227631     6 DKTNIKTAWGAIgsHAADHGAEALERMFLSFPTTKTYFPHF-DMS------HGSGQIAHGKKVADALTNAVGHIDDMPGA 78
Cdd:cd08925   1 EKAAITAVWGKV--DVDEVGAEALARLLIVYPWTQRYFSSFgDLSsaaaiaGNPKVAAHGKKVLGALGEAIKHLDDIKAT 78

                        90       100       110       120       130       140
                ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 227631    79 LSALSDLHAHKLRVDPVNFKLLSH-LLVTLASHHPAEFTPAVHASLDKFFAAVSTVLTSKY 138
Cdd:cd08925  79 FADLSEKHSEKLHVDPENFKLLGDcLVVVLAAHFGKEFTPEVQAAWEKFFAVVVDALSKGY 139
Globin pfam00042
Globin;
26-134 1.13e-26

Globin;


Pssm-ID: 459646 [Multi-domain]  Cd Length: 117  Bit Score: 96.20  E-value: 1.13e-26
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 227631      26 AEALERMFLSFPTTKTYFPHFDMSHGSGQ-----IAHGKKVADALTNAVGHIDD---MPGALSALSDLHAHKLRVDPVNF 97
Cdd:pfam00042   1 AEILARLFTAYPDTKAYFPRFEKSADDLKgspkfKAHGKKVLAALGEAVKHLDDlaaLNAALKKLGARHKEKRGVDPANF 80

                          90       100       110
                  ....*....|....*....|....*....|....*..
gi 227631      98 KLLSHLLVTLASHHPAEFTPAVHASLDKFFAAVSTVL 134
Cdd:pfam00042  81 KLFGEALLVVLAEHLGEFTPETKAAWDKALDVIAAAL 117
Cygb cd08924
Cytoglobin and related globins; Cygb is a hexacoordinated heme-containing protein, able to ...
 2-139 5.21e-19

Cytoglobin and related globins; Cygb is a hexacoordinated heme-containing protein, able to bind O2, NO and carbon monoxide. It has both nitric oxide dioxygenase and lipid peroxidase activities, and potentially participates in the maintenance of normal phenotype by implementing a homeostatic effect, to counteract stress conditions imposed on a cell. Cygb is implicated in multiple human pathologies: it is up-regulated in fibrosis and neurodegenerative disorders, and down-regulated in multiple cancer types, and may have a tumor suppressor role. It is expressed ubiquitously across a broad range of vertebrate organs including liver, heart, brain, lung, retina, and gut. In the human brain, it was detected at high levels in the habenula, hypothalamus, thalamus, hippocampus and pontine tegmental nuclei, detected at a low level in the cerebral cortex, and undetected in the cerebellar cortex.


Pssm-ID: 271275  Cd Length: 153  Bit Score: 77.57  E-value: 5.21e-19
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 227631     2 LSSADKTNIKTAWGAIGSHAADHGAEALERMFLSFPTTKTYFPHF-------DMSHGSGQIAHGKKVADALTNAVGHIDD 74
Cdd:cd08924   1 LTEAERKVIQDTWARVYANCEDVGVAILVRFFVNFPSAKQYFSQFkhmedplEMERSSQLRKHARRVMGALNTVVENLHD 80

                        90       100       110       120       130       140
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....
gi 227631    75 ---MPGALSALSDLHAHKLRVDPVNFKLLSH-LLVTLASHHPAEFTPAVHASLDKFFAAVSTVLTSKYR 139
Cdd:cd08924  81 pdkVSSVLALVGKAHALKHKVEPVYFKILSGvILEVLAEEFAQDFTPEVQSAWSKLRGLIYSHVTAAYK 149
Mb-like cd01040
myoglobin-like; M family globin domain; This family includes chimeric (FHbs/flavohemoglobins) ...
 10-134 6.85e-15

myoglobin-like; M family globin domain; This family includes chimeric (FHbs/flavohemoglobins) and single-domain globins: FHbs, Ngbs/neuroglobins, Cygb/cytoglobins, GbE/avian eye specific globin E, GbX/globin X, amphibian GbY/globin Y, Mb/myoglobin, HbA/hemoglobin-alpha, HbB/hemoglobin-beta, SDgbs/single-domain globins related to FHbs, and Adgb/androglobin. The M family exhibits the canonical secondary structure of hemoglobins, a 3-over-3 alpha-helical sandwich structure (3/3 Mb-fold), built by eight alpha-helical segments (named A through H). In Adgbs, the globin domain is split into two: helices C-H are followed by helices A-B and the two parts are separated by the IQ motif. Although rearranged, the globin domain of most Adgbs contains a number of conserved residues which play critical roles in heme-coordination and gas ligand binding. Adgbs have been omitted from this A-H helix cd.


Pssm-ID: 381254  Cd Length: 133  Bit Score: 66.32  E-value: 6.85e-15
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 227631    10 IKTAWGAIGSHAADHGAEALERMFLSFPTTKTYFPHFDMSHGSGQ-----IAHGKKVADALTNAVGHIDDMPGALSALSD 84
Cdd:cd01040   1 VKSSWARVKKDKEEFGVAIFLRLFEANPELKKLFPKFAGVDLDLKgspefKAHAKRVVGALDSLIDNLDDPEALDALLRK 80

                        90       100       110       120       130
                ....*....|....*....|....*....|....*....|....*....|...
gi 227631    85 LHA--HKLRVDPVNFKLLSH-LLVTLASHHPAEFTPAVHASLDKFFAAVSTVL 134
Cdd:cd01040  81 LGKrhKRRGVTPEHFEVFGEaLLETLEEVLGEAFTPEVEAAWRKLLDYIANAI 133
Mb cd08926
Animal Myoglobins; Myoglobin (Mb) is a monomeric pentacoordinate heme-bound globin protein ...
 14-139 8.17e-14

Animal Myoglobins; Myoglobin (Mb) is a monomeric pentacoordinate heme-bound globin protein whose expression has long been considered limited to cardiomyocytes and striated skeletal muscle cell, however it has recently been found localized in a wide variety of tissues including smooth muscle cells. As a physiological catalyst, it can modulate reactive oxygen species levels, facilitate oxygen diffusion within the cell, and scavenge or generate NO depending on oxygen tensions within the cell. Through its NO dioxygenase and nitrite reductase activities, Mb regulates mitochondrial function in energy-demanding tissues.


Pssm-ID: 271277  Cd Length: 148  Bit Score: 64.01  E-value: 8.17e-14
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 227631    14 WGAIGSHAADHGAEALERMFLSFPTTKTYFPHF------DMSHGSGQIAHGKKVADALTNAVGHIDDMPGALSALSDLHA 87
Cdd:cd08926  10 WAKVEADLTGIGQEVLLRLFKEHPETQEHFPKFkgisqdDLKSNEDLKKHGVTVLTALGEILKQKGSHEAELKPLAQTHA 89

                        90       100       110       120       130
                ....*....|....*....|....*....|....*....|....*....|...
gi 227631    88 HKLRVDPVNFKLLSHLLV-TLASHHPAEFTPAVHASLDKFFAAVSTVLTSKYR 139
Cdd:cd08926  90 TKHKIPPKYFELITEIIVkVLAEKHPSEMGAPAQAAFSKAFELICSDIEANYK 142
HGbI-like cd12131
Hell's gate globin I (HGbI) from Methylacidophilum infernorum and related proteins; HGbI is a ...
 6-133 1.80e-09

Hell's gate globin I (HGbI) from Methylacidophilum infernorum and related proteins; HGbI is a single-domain heme-containing protein isolated from Methylacidiphilum infernorum, an aerobic acidophilic and thermophilic methanotroph. M. infernorum grows optimally at pH 2.0 and 60C and its home is New Zealand's Hell's Gate geothermal park. The physiological role of HGbI has yet to be determined. It has an extremely strong resistance to auto-oxidation, and has fast oxygen-binding/slow release characteristics. Its CO on-rate is comparable to the O2 on-rate, and it is able to bind acetate with high affinity in the ferric state. The coordination of the heme iron changes in the ferrous form from pentacoordinate at low pH to predominantly hexacoordinate at high pH; in the ferric form, it is predominantly hexacoordinate at all pH.


Pssm-ID: 381269 [Multi-domain]  Cd Length: 128  Bit Score: 52.17  E-value: 1.80e-09
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 227631     6 DKTNIKTAWGAIGSHAADHGAEALERMFLSFPTTKTYFPHFDMShgsgqiAHGKKVADALTNAVGHIDDMPGALSALSDL 85
Cdd:cd12131   1 QIELVQQSFAKVEPIADEAAALFYERLFELDPELKPLFKGTDME------EQGRKLMAMLVLVVKGLDDLEALLPALQDL 74

                        90       100       110       120       130
                ....*....|....*....|....*....|....*....|....*....|.
gi 227631    86 HA-H-KLRVDPVNFKLLSH-LLVTLASHHPAEFTPAVHASLDKFFAAVSTV 133
Cdd:cd12131  75 GRrHvKYGVKPEHYPLVGEaLLWTLEEGLGDEWTPEVKQAWTDAYGILAGT 125
Hmp COG1017
Hemoglobin-like flavoprotein [Energy production and conversion];
2-134 5.79e-09

Hemoglobin-like flavoprotein [Energy production and conversion];


Pssm-ID: 440640 [Multi-domain]  Cd Length: 135  Bit Score: 50.93  E-value: 5.79e-09
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 227631     2 LSSADKTNIKTAWGAIGSHAADHGAEALERMFLSFPTTKTYFPHfDMShgsgqiAHGKKVADALTNAVGHIDDMPGALSA 81
Cdd:COG1017   1 LSPETIALVKASFPLVAPHGEEITARFYERLFELHPELRPLFNG-DMG------EQRKALAAALAAYARNLDNLEALLPA 73

                        90       100       110       120       130
                ....*....|....*....|....*....|....*....|....*....|....*.
gi 227631    82 LSDL-HAH-KLRVDPVNFKLL-SHLLVTLASHHPAEFTPAVHASLDKFFAAVSTVL 134
Cdd:COG1017  74 LERLgRKHvSYGVKPEHYPIVgEALLAALREVLGDAWTPEVAAAWAEAYGLLADVM 129
Ngb cd08920
Neuroglobins; The Ngb described in this subfamily is a hexacoordinated heme globin chiefly ...
 2-135 2.19e-03

Neuroglobins; The Ngb described in this subfamily is a hexacoordinated heme globin chiefly expressed in neurons of the brain and retina. In the human brain, it is highly expressed in the hypothalamus, amygdala, and in the pontine tegmental nuclei. It affords protection of brain neurons from ischemia and hypoxia. In rats, it plays a role in the neuroprotection of limb ischemic preconditioning (LIP). It plays roles as: a sensor of oxygen levels; a store or reservoir for oxygen; a facilitator for oxygen transport; a regulator of ROS; and a scavenger of nitric oxide. It also functions in the protection against apoptosis and in sleep regulation. This subgroup contains Ngb from mammalian and non-mammalian vertebrates, including fish, amphibians and reptiles; the functionally pentacoordinated acoelomorph Symsagittifera roscoffensis Ngb does not belong to this subgroup.


Pssm-ID: 271272  Cd Length: 148  Bit Score: 35.97  E-value: 2.19e-03
                        10        20        30        40        50        60        70        80
                ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 227631     2 LSSADKTNIKTAWGAIGSHAADHGAEALERMFLSFPTTKTYFPHFDMSHGSGQ--------IAHGKKVADALTNAVGHID 73
Cdd:cd08920   1 LSRPQKELIRESWRSVSRSPLEHGTVLFSRLFELEPDLLPLFQYNGRQFSSPQdclsspefLDHIRKVMLVIDAAVSHLE 80

                        90       100       110       120       130       140
                ....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 227631    74 DMPGALSALSDLhAHKLRVDPVNFKLLS----HLLVTLASHHPAEFTPAVHASLDKFFAAVSTVLT 135
Cdd:cd08920  81 DLSSLEEYLTSL-GRKHRAVGVKLESFStvgeSLLYMLESSLGPAFTPDTREAWSTLYGAVVQAMS 145
 
Blast search parameters
Data Source: Precalculated data, version = cdd.v.3.21
Preset Options:Database: CDSEARCH/cdd   Low complexity filter: no  Composition Based Adjustment: yes   E-value threshold: 0.01

References:

  • Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
  • Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
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